Routing Table Report 04:00 +10GMT Sat 01 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 153386
Prefixes after maximum aggregation: 90036
Unique aggregates announced to Internet: 73647
Total ASes present in the Internet Routing Table: 18725
Origin-only ASes present in the Internet Routing Table: 16239
Origin ASes announcing only one prefix: 7613
Transit ASes present in the Internet Routing Table: 2486
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361525284
Equivalent to 81 /8s, 39 /16s and 58 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71066
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30134
Total APNIC prefixes after maximum aggregation: 14802
Prefixes being announced from the APNIC address blocks: 28192
Unique aggregates announced from the APNIC address blocks: 14526
APNIC Region origin ASes present in the Internet Routing Table: 2179
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 170551296
Equivalent to 10 /8s, 42 /16s and 104 /24s
Percentage of available APNIC address space announced: 77.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86291
Total ARIN prefixes after maximum aggregation: 52147
Prefixes being announced from the ARIN address blocks: 66095
Unique aggregates announced from the ARIN address blocks: 23897
ARIN Region origin ASes present in the Internet Routing Table: 9791
ARIN Region origin ASes announcing only one prefix: 3525
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 236590080
Equivalent to 14 /8s, 26 /16s and 20 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28823
Total RIPE prefixes after maximum aggregation: 19993
Prefixes being announced from the RIPE address blocks: 25758
Unique aggregates announced from the RIPE address blocks: 16997
RIPE Region origin ASes present in the Internet Routing Table: 6176
RIPE Region origin ASes announcing only one prefix: 3297
RIPE Region transit ASes present in the Internet Routing Table: 1068
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 183667136
Equivalent to 10 /8s, 242 /16s and 137 /24s
Percentage of available RIPE address space announced: 64.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6837
Total LACNIC prefixes after maximum aggregation: 2395
Prefixes being announced from the LACNIC address blocks: 6690
Unique aggregates announced from the LACNIC address blocks: 4064
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 17062912
Equivalent to 1 /8s, 4 /16s and 92 /24s
Percentage of available LACNIC address space announced: 50.9
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1294
Total AfriNIC prefixes after maximum aggregation: 699
Prefixes being announced from the AfriNIC address blocks: 868
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2103552
Equivalent to 0 /8s, 32 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 874 4610 167 Data Communications Bureau
1221 793 1184 567 Telstra Pty Ltd
9583 579 47 29 Satyam Infoway Ltd.,
4766 558 3409 273 Korea Internet Exchange for "
4755 432 176 85 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 356 164 41 China Netcom Corp.
703 319 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 231 81 54 BHARTI BT INTERNET LTD.
4814 226 232 6 China Telecom (Group)
7563 224 48 158 Korea Internet Infrastructure
17974 219 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1429 6571 985 AT&T WorldNet Services
721 1078 21710 301 DLA Systems Automation Center
701 1045 8326 898 UUNET Technologies, Inc.
1239 935 2882 625 Sprint
2386 856 528 609 AT&T Data Communications Serv
4323 821 670 224 Time Warner Telecom
6197 815 380 368 BellSouth Network Solutions,
18566 758 208 6 Covad Communications
209 657 3439 505 Qwest
3356 609 10887 446 Level 3 Communications, LLC
20115 567 468 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 449 388 199 BellSouth Network Solutions,
7132 447 8243 380 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 626 2023 517 UUNET - Commercial IP service
3320 294 2992 232 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 254 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 206 118 190 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 163 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1360 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 142 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 355 140 69 ImpSat
8151 331 473 143 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 54 Servicios Alestra S.A de C.V
11664 189 19 28 Keytech SA
6147 188 102 20 Telefonica Del Peru
7303 161 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
5639 79 8 8 Telecommunications Services o
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 77 272 70 The Internetworking Company o
20928 74 16 2 Noor Advanced Technologies AS
24835 48 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 34 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1078 777 DLA Systems Automation Center
18566 758 752 Covad Communications
4134 874 707 Data Communications Bureau
4323 821 597 Time Warner Telecom
9583 579 550 Satyam Infoway Ltd.,
6197 815 447 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 432 347 Videsh Sanchar Nigam Ltd. Aut
6467 373 342 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 356 315 China Netcom Corp.
1239 935 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
6140 355 286 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:313 /15:561 /16:8228 /17:2340 /18:4048
/19:10043 /20:10649 /21:8183 /22:11398 /23:12954 /24:83525
/25:251 /26:231 /27:127 /28:62 /29:38 /30:139
/31:0 /32:54
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 743 758 Covad Communications
6197 661 815 BellSouth Network Solutions,
2386 629 856 AT&T Data Communications Serv
7018 586 1429 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 403 579 Satyam Infoway Ltd.,
702 382 626 UUNET - Commercial IP service
4766 378 558 Korea Internet Exchange for "
1239 371 935 Sprint
5668 367 424 Century Telephone
6198 326 449 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 285 356 China Netcom Corp.
6467 283 373 E.Spire Communications, Inc.
4323 269 821 Time Warner Telecom
21502 269 272 NUMERICABLE is a cabled netwo
11456 258 303 Carolina Online, Inc.
701 252 1045 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1459 13:1 15:5 16:2
17:3 18:3 20:4 24:716 32:67 33:3
38:85 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:689 62:499
63:1850 64:2527 65:2081 66:2524 67:480 68:519
69:861 70:50 71:1 72:22 80:526 81:604
82:382 83:212 84:80 85:43 128:109 129:164
130:86 131:193 132:34 134:176 135:30 136:182
137:69 138:159 139:35 140:186 141:108 142:133
143:124 144:165 145:41 146:282 147:88 148:261
149:129 150:92 151:62 152:116 153:70 154:2
155:134 156:62 157:71 158:148 159:163 160:63
161:60 162:383 163:84 164:222 165:162 166:126
167:223 168:357 169:131 170:313 171:8 192:5644
193:3030 194:2222 195:1542 196:601 198:3865 199:3295
200:3966 201:42 202:5044 203:5868 204:3569 205:2109
206:2303 207:2540 208:2105 209:3060 210:1551 211:730
212:1164 213:1258 214:230 215:31 216:3741 217:1093
218:171 219:87 220:310 221:95 222:37
End of report
Routing Table Report 04:00 +10GMT Fri 31 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153382
Prefixes after maximum aggregation: 90015
Unique aggregates announced to Internet: 73594
Total ASes present in the Internet Routing Table: 18723
Origin-only ASes present in the Internet Routing Table: 16240
Origin ASes announcing only one prefix: 7617
Transit ASes present in the Internet Routing Table: 2483
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361484132
Equivalent to 81 /8s, 38 /16s and 153 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71085
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30131
Total APNIC prefixes after maximum aggregation: 14813
Prefixes being announced from the APNIC address blocks: 28189
Unique aggregates announced from the APNIC address blocks: 14518
APNIC Region origin ASes present in the Internet Routing Table: 2177
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 170544384
Equivalent to 10 /8s, 42 /16s and 77 /24s
Percentage of available APNIC address space announced: 77.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86281
Total ARIN prefixes after maximum aggregation: 52118
Prefixes being announced from the ARIN address blocks: 66073
Unique aggregates announced from the ARIN address blocks: 23880
ARIN Region origin ASes present in the Internet Routing Table: 9784
ARIN Region origin ASes announcing only one prefix: 3523
ARIN Region transit ASes present in the Internet Routing Table: 969
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 236431616
Equivalent to 14 /8s, 23 /16s and 169 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28829
Total RIPE prefixes after maximum aggregation: 19993
Prefixes being announced from the RIPE address blocks: 25750
Unique aggregates announced from the RIPE address blocks: 16954
RIPE Region origin ASes present in the Internet Routing Table: 6181
RIPE Region origin ASes announcing only one prefix: 3304
RIPE Region transit ASes present in the Internet Routing Table: 1066
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 183827712
Equivalent to 10 /8s, 244 /16s and 253 /24s
Percentage of available RIPE address space announced: 64.5
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6840
Total LACNIC prefixes after maximum aggregation: 2392
Prefixes being announced from the LACNIC address blocks: 6704
Unique aggregates announced from the LACNIC address blocks: 4076
LACNIC Region origin ASes present in the Internet Routing Table: 411
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 17034240
Equivalent to 1 /8s, 3 /16s and 236 /24s
Percentage of available LACNIC address space announced: 50.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1294
Total AfriNIC prefixes after maximum aggregation: 699
Prefixes being announced from the AfriNIC address blocks: 868
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 94
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 11
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2103552
Equivalent to 0 /8s, 32 /16s and 25 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 875 4611 168 Data Communications Bureau
1221 793 1184 567 Telstra Pty Ltd
9583 578 47 29 Satyam Infoway Ltd.,
4766 556 3409 272 Korea Internet Exchange for "
4755 436 176 89 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 356 164 41 China Netcom Corp.
703 319 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
9498 232 81 55 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
4814 226 232 6 China Telecom (Group)
7563 226 48 164 Korea Internet Infrastructure
17974 219 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6571 983 AT&T WorldNet Services
721 1092 21726 302 DLA Systems Automation Center
701 1044 8325 897 UUNET Technologies, Inc.
1239 934 2882 624 Sprint
2386 854 528 607 AT&T Data Communications Serv
4323 822 670 223 Time Warner Telecom
6197 815 380 368 BellSouth Network Solutions,
18566 757 208 6 Covad Communications
209 656 3405 504 Qwest
3356 609 10887 446 Level 3 Communications, LLC
20115 567 468 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 466 814 96 AT&T Worldnet Services
6198 448 388 199 BellSouth Network Solutions,
7132 447 8243 380 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 625 2023 517 UUNET - Commercial IP service
3320 294 2992 232 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 254 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 206 118 190 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 163 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1360 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 355 140 69 ImpSat
8151 329 473 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 54 Servicios Alestra S.A de C.V
11664 189 19 28 Keytech SA
6147 184 94 20 Telefonica Del Peru
7303 161 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
4270 81 18 9 Red de Interconexion Universi
13999 81 52 9 Mega Cable S.A. de C.V.
5639 79 8 8 Telecommunications Services o
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 77 272 70 The Internetworking Company o
20928 74 16 2 Noor Advanced Technologies AS
24835 48 34 7 RAYA Telecom - Egypt
8452 35 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 34 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
15808 13 1 2 Communication Solutions Ltd i
17148 13 1 7 First National Bank
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1092 790 DLA Systems Automation Center
18566 757 751 Covad Communications
4134 875 707 Data Communications Bureau
4323 822 599 Time Warner Telecom
9583 578 549 Satyam Infoway Ltd.,
6197 815 447 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 466 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 436 347 Videsh Sanchar Nigam Ltd. Aut
6467 373 342 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 356 315 China Netcom Corp.
1239 934 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
6140 355 286 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:564 /16:8225 /17:2334 /18:4042
/19:10029 /20:10640 /21:8184 /22:11401 /23:12958 /24:83545
/25:254 /26:232 /27:127 /28:60 /29:36 /30:140
/31:0 /32:54
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 742 757 Covad Communications
6197 661 815 BellSouth Network Solutions,
2386 627 854 AT&T Data Communications Serv
7018 585 1427 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 402 578 Satyam Infoway Ltd.,
702 381 625 UUNET - Commercial IP service
4766 376 556 Korea Internet Exchange for "
1239 371 934 Sprint
5668 367 424 Century Telephone
6198 325 448 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 285 356 China Netcom Corp.
6467 283 373 E.Spire Communications, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 268 822 Time Warner Telecom
11456 257 302 Carolina Online, Inc.
701 252 1044 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:716 32:67 33:3
38:84 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:689 62:500
63:1850 64:2522 65:2079 66:2532 67:478 68:519
69:858 70:50 71:1 72:22 80:529 81:605
82:382 83:210 84:80 85:43 128:109 129:164
130:90 131:193 132:34 134:176 135:30 136:182
137:69 138:159 139:35 140:186 141:108 142:133
143:124 144:165 145:41 146:282 147:88 148:261
149:129 150:92 151:62 152:116 153:70 154:2
155:134 156:62 157:71 158:149 159:163 160:63
161:60 162:382 163:84 164:218 165:167 166:126
167:223 168:357 169:131 170:313 171:8 192:5651
193:3035 194:2217 195:1542 196:601 198:3865 199:3283
200:3983 201:42 202:5046 203:5862 204:3570 205:2106
206:2311 207:2535 208:2108 209:3055 210:1557 211:731
212:1165 213:1259 214:231 215:31 216:3733 217:1097
218:175 219:87 220:310 221:92 222:37
End of report
Routing Table Report 04:00 +10GMT Thu 30 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153334
Prefixes after maximum aggregation: 89980
Unique aggregates announced to Internet: 73508
Total ASes present in the Internet Routing Table: 18716
Origin-only ASes present in the Internet Routing Table: 16236
Origin ASes announcing only one prefix: 7622
Transit ASes present in the Internet Routing Table: 2480
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361445992
Equivalent to 81 /8s, 38 /16s and 4 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71060
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30122
Total APNIC prefixes after maximum aggregation: 14819
Prefixes being announced from the APNIC address blocks: 28177
Unique aggregates announced from the APNIC address blocks: 14493
APNIC Region origin ASes present in the Internet Routing Table: 2179
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 170541056
Equivalent to 10 /8s, 42 /16s and 64 /24s
Percentage of available APNIC address space announced: 77.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86297
Total ARIN prefixes after maximum aggregation: 52146
Prefixes being announced from the ARIN address blocks: 66092
Unique aggregates announced from the ARIN address blocks: 23893
ARIN Region origin ASes present in the Internet Routing Table: 9786
ARIN Region origin ASes announcing only one prefix: 3528
ARIN Region transit ASes present in the Internet Routing Table: 968
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 236415232
Equivalent to 14 /8s, 23 /16s and 105 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28769
Total RIPE prefixes after maximum aggregation: 19919
Prefixes being announced from the RIPE address blocks: 25692
Unique aggregates announced from the RIPE address blocks: 16871
RIPE Region origin ASes present in the Internet Routing Table: 6168
RIPE Region origin ASes announcing only one prefix: 3300
RIPE Region transit ASes present in the Internet Routing Table: 1065
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 183816192
Equivalent to 10 /8s, 244 /16s and 208 /24s
Percentage of available RIPE address space announced: 64.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6844
Total LACNIC prefixes after maximum aggregation: 2393
Prefixes being announced from the LACNIC address blocks: 6712
Unique aggregates announced from the LACNIC address blocks: 4113
LACNIC Region origin ASes present in the Internet Routing Table: 412
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 17050368
Equivalent to 1 /8s, 4 /16s and 43 /24s
Percentage of available LACNIC address space announced: 50.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1295
Total AfriNIC prefixes after maximum aggregation: 703
Prefixes being announced from the AfriNIC address blocks: 866
Unique aggregates announced from the AfriNIC address blocks: 684
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2101504
Equivalent to 0 /8s, 32 /16s and 17 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 875 4611 168 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 580 47 29 Satyam Infoway Ltd.,
4766 555 3409 272 Korea Internet Exchange for "
4755 434 176 88 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 356 164 41 China Netcom Corp.
703 319 344 248 UUNET
17557 306 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 273 267 202 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 227 48 165 Korea Internet Infrastructure
4814 226 232 6 China Telecom (Group)
17974 218 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1427 6571 983 AT&T WorldNet Services
721 1073 21838 301 DLA Systems Automation Center
701 1044 8325 897 UUNET Technologies, Inc.
1239 933 2882 623 Sprint
2386 854 528 607 AT&T Data Communications Serv
4323 821 670 223 Time Warner Telecom
6197 814 380 367 BellSouth Network Solutions,
18566 757 208 6 Covad Communications
209 655 3405 504 Qwest
3356 606 10872 443 Level 3 Communications, LLC
20115 567 468 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8275 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 626 2023 517 UUNET - Commercial IP service
3320 294 2992 232 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 254 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1360 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 355 140 69 ImpSat
8151 329 473 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 215 99 54 Servicios Alestra S.A de C.V
11664 189 19 28 Keytech SA
6147 184 94 20 Telefonica Del Peru
7303 175 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
4270 81 18 9 Red de Interconexion Universi
13999 81 52 9 Mega Cable S.A. de C.V.
5639 79 8 8 Telecommunications Services o
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 73 16 2 Noor Advanced Technologies AS
24835 48 34 7 RAYA Telecom - Egypt
8452 35 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 34 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 24 1 7 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1073 772 DLA Systems Automation Center
18566 757 751 Covad Communications
4134 875 707 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 551 Satyam Infoway Ltd.,
6197 814 447 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 434 346 Videsh Sanchar Nigam Ltd. Aut
6467 373 342 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 356 315 China Netcom Corp.
1239 933 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
6140 355 286 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:140 /14:314 /15:563 /16:8224 /17:2331 /18:4030
/19:10022 /20:10637 /21:8190 /22:11407 /23:12943 /24:83533
/25:255 /26:231 /27:127 /28:60 /29:37 /30:134
/31:0 /32:53
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 742 757 Covad Communications
6197 660 814 BellSouth Network Solutions,
2386 627 854 AT&T Data Communications Serv
7018 585 1427 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 403 580 Satyam Infoway Ltd.,
702 382 626 UUNET - Commercial IP service
4766 375 555 Korea Internet Exchange for "
1239 371 933 Sprint
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
9929 285 356 China Netcom Corp.
6467 283 373 E.Spire Communications, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 268 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
701 251 1044 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:716 32:67 33:3
38:84 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:686 62:498
63:1853 64:2524 65:2079 66:2529 67:477 68:517
69:857 70:50 71:1 72:21 80:527 81:605
82:380 83:208 84:73 85:43 128:108 129:164
130:89 131:193 132:34 134:176 135:30 136:186
137:70 138:159 139:37 140:186 141:108 142:133
143:124 144:165 145:41 146:282 147:88 148:261
149:129 150:92 151:62 152:118 153:70 154:2
155:134 156:62 157:70 158:146 159:163 160:63
161:60 162:383 163:84 164:223 165:167 166:126
167:222 168:357 169:131 170:313 171:8 192:5648
193:3023 194:2223 195:1540 196:600 198:3867 199:3295
200:4000 201:43 202:5025 203:5860 204:3572 205:2106
206:2312 207:2537 208:2108 209:3056 210:1555 211:730
212:1166 213:1257 214:231 215:31 216:3737 217:1092
218:175 219:91 220:308 221:93 222:37
End of report
Routing Table Report 04:00 +10GMT Wed 29 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153245
Prefixes after maximum aggregation: 89921
Unique aggregates announced to Internet: 73505
Total ASes present in the Internet Routing Table: 18701
Origin-only ASes present in the Internet Routing Table: 16226
Origin ASes announcing only one prefix: 7611
Transit ASes present in the Internet Routing Table: 2475
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 20
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361484132
Equivalent to 81 /8s, 38 /16s and 153 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71001
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30025
Total APNIC prefixes after maximum aggregation: 14763
Prefixes being announced from the APNIC address blocks: 28076
Unique aggregates announced from the APNIC address blocks: 14454
APNIC Region origin ASes present in the Internet Routing Table: 2175
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 170489600
Equivalent to 10 /8s, 41 /16s and 119 /24s
Percentage of available APNIC address space announced: 77.8
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86348
Total ARIN prefixes after maximum aggregation: 52127
Prefixes being announced from the ARIN address blocks: 66120
Unique aggregates announced from the ARIN address blocks: 23920
ARIN Region origin ASes present in the Internet Routing Table: 9781
ARIN Region origin ASes announcing only one prefix: 3524
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 20
Number of ARIN addresses announced to Internet: 236440576
Equivalent to 14 /8s, 23 /16s and 204 /24s
Percentage of available ARIN address space announced: 70.5
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28744
Total RIPE prefixes after maximum aggregation: 19937
Prefixes being announced from the RIPE address blocks: 25683
Unique aggregates announced from the RIPE address blocks: 16924
RIPE Region origin ASes present in the Internet Routing Table: 6164
RIPE Region origin ASes announcing only one prefix: 3296
RIPE Region transit ASes present in the Internet Routing Table: 1061
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 20
Number of RIPE addresses announced to Internet: 183757568
Equivalent to 10 /8s, 243 /16s and 235 /24s
Percentage of available RIPE address space announced: 64.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6829
Total LACNIC prefixes after maximum aggregation: 2394
Prefixes being announced from the LACNIC address blocks: 6691
Unique aggregates announced from the LACNIC address blocks: 4105
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 75
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 17038336
Equivalent to 1 /8s, 3 /16s and 252 /24s
Percentage of available LACNIC address space announced: 50.8
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1292
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 863
Unique aggregates announced from the AfriNIC address blocks: 683
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 23
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2100480
Equivalent to 0 /8s, 32 /16s and 13 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 872 4609 166 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 562 47 29 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 432 176 88 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 319 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 235 381 74 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
4814 226 232 6 China Telecom (Group)
7563 226 48 164 Korea Internet Infrastructure
9942 207 71 117 COMindico Australia
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1426 6571 985 AT&T WorldNet Services
701 1099 8357 896 UUNET Technologies, Inc.
721 1076 21854 302 DLA Systems Automation Center
1239 934 2882 624 Sprint
2386 854 528 607 AT&T Data Communications Serv
6197 824 384 354 BellSouth Network Solutions,
4323 819 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 614 10889 449 Level 3 Communications, LLC
20115 564 466 302 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 523 1126 398 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8275 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 626 2023 517 UUNET - Commercial IP service
3320 294 2992 232 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 223 483 219 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1360 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 354 140 69 ImpSat
8151 329 473 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
11664 189 19 28 Keytech SA
6147 184 94 20 Telefonica Del Peru
7303 167 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 72 16 2 Noor Advanced Technologies AS
24835 48 34 7 RAYA Telecom - Egypt
8452 35 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 34 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1076 774 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 872 706 Data Communications Bureau
4323 819 596 Time Warner Telecom
9583 562 533 Satyam Infoway Ltd.,
6197 824 470 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
6467 376 345 E.Spire Communications, Inc.
4755 432 344 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 934 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:140 /14:314 /15:563 /16:8218 /17:2336 /18:4029
/19:10025 /20:10639 /21:8188 /22:11359 /23:12905 /24:83536
/25:255 /26:231 /27:127 /28:60 /29:36 /30:131
/31:0 /32:50
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 670 824 BellSouth Network Solutions,
2386 627 854 AT&T Data Communications Serv
7018 584 1426 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 386 562 Satyam Infoway Ltd.,
702 382 626 UUNET - Commercial IP service
4766 372 552 Korea Internet Exchange for "
1239 371 934 Sprint
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
6517 291 314 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 282 1099 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 266 819 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1461 13:1 15:5 16:2
17:3 18:3 20:4 24:716 32:67 33:3
38:84 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:683 62:496
63:1854 64:2522 65:2085 66:2531 67:478 68:517
69:853 70:49 71:1 72:21 80:528 81:606
82:379 83:210 84:74 85:43 128:107 129:164
130:89 131:193 132:36 134:178 135:30 136:186
137:69 138:163 139:35 140:186 141:108 142:135
143:122 144:159 145:41 146:283 147:88 148:262
149:129 150:92 151:62 152:118 153:70 154:2
155:134 156:62 157:71 158:146 159:162 160:63
161:60 162:383 163:84 164:222 165:178 166:125
167:222 168:366 169:131 170:313 171:8 192:5650
193:3021 194:2220 195:1542 196:597 198:3889 199:3308
200:3992 201:43 202:5019 203:5839 204:3586 205:2104
206:2307 207:2532 208:2109 209:3052 210:1549 211:725
212:1168 213:1253 214:232 215:31 216:3741 217:1095
218:178 219:91 220:306 221:93 222:30
End of report
Routing Table Report 04:00 +10GMT Mon 27 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153314
Prefixes after maximum aggregation: 89863
Unique aggregates announced to Internet: 73369
Total ASes present in the Internet Routing Table: 18685
Origin-only ASes present in the Internet Routing Table: 16215
Origin ASes announcing only one prefix: 7599
Transit ASes present in the Internet Routing Table: 2470
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1359838820
Equivalent to 81 /8s, 13 /16s and 126 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71113
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30111
Total APNIC prefixes after maximum aggregation: 14746
Prefixes being announced from the APNIC address blocks: 28166
Unique aggregates announced from the APNIC address blocks: 14480
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 169838080
Equivalent to 10 /8s, 31 /16s and 134 /24s
Percentage of available APNIC address space announced: 77.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86466
Total ARIN prefixes after maximum aggregation: 52152
Prefixes being announced from the ARIN address blocks: 66138
Unique aggregates announced from the ARIN address blocks: 23809
ARIN Region origin ASes present in the Internet Routing Table: 9778
ARIN Region origin ASes announcing only one prefix: 3517
ARIN Region transit ASes present in the Internet Routing Table: 966
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 237152256
Equivalent to 14 /8s, 34 /16s and 168 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28653
Total RIPE prefixes after maximum aggregation: 19870
Prefixes being announced from the RIPE address blocks: 25612
Unique aggregates announced from the RIPE address blocks: 16877
RIPE Region origin ASes present in the Internet Routing Table: 6148
RIPE Region origin ASes announcing only one prefix: 3292
RIPE Region transit ASes present in the Internet Routing Table: 1055
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 182758400
Equivalent to 10 /8s, 228 /16s and 172 /24s
Percentage of available RIPE address space announced: 64.1
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6798
Total LACNIC prefixes after maximum aggregation: 2390
Prefixes being announced from the LACNIC address blocks: 6655
Unique aggregates announced from the LACNIC address blocks: 4090
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16985344
Equivalent to 1 /8s, 3 /16s and 45 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1279
Total AfriNIC prefixes after maximum aggregation: 705
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 681
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2083840
Equivalent to 0 /8s, 31 /16s and 204 /24s
Percentage of available AfriNIC address space announced: 12.4
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 870 4465 167 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 582 47 29 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 462 176 97 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 355 1856 328 SINET Japan
9929 354 164 40 China Netcom Corp.
703 317 344 247 UUNET
17557 307 22 150 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 53 BHARTI BT INTERNET LTD.
7563 225 48 164 Korea Internet Infrastructure
4814 223 232 6 China Telecom (Group)
17974 218 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1424 6571 986 AT&T WorldNet Services
701 1099 8357 896 UUNET Technologies, Inc.
721 1074 21840 299 DLA Systems Automation Center
1239 935 2882 625 Sprint
2386 857 528 610 AT&T Data Communications Serv
4323 820 670 223 Time Warner Telecom
6197 820 384 354 BellSouth Network Solutions,
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 615 10889 450 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 523 1126 398 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 566 1674 483 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 159 1362 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 140 68 ImpSat
8151 318 473 139 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 160 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 44 34 7 RAYA Telecom - Egypt
8452 35 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
11845 17 9 16 Data Pro Business Online
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1074 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 870 703 Data Communications Bureau
4323 820 597 Time Warner Telecom
9583 582 553 Satyam Infoway Ltd.,
6197 820 466 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
4755 462 365 Videsh Sanchar Nigam Ltd. Aut
22909 419 354 Comcast Cable Corporation
6467 375 344 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:562 /16:8202 /17:2334 /18:4018
/19:10020 /20:10618 /21:8185 /22:11381 /23:12903 /24:83611
/25:281 /26:239 /27:127 /28:60 /29:35 /30:130
/31:0 /32:51
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 666 820 BellSouth Network Solutions,
2386 628 857 AT&T Data Communications Serv
7018 584 1424 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 582 Satyam Infoway Ltd.,
1239 372 935 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
702 355 566 UUNET - Commercial IP service
6198 327 450 BellSouth Network Solutions,
10036 290 290 C&M Communication Co. Ltd.
6517 289 312 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 375 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 282 1099 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 820 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:705 62:518
63:1853 64:2519 65:2083 66:2534 67:478 68:517
69:856 70:48 71:1 72:21 80:524 81:604
82:379 83:218 84:74 85:43 128:107 129:164
130:88 131:193 132:36 134:190 135:29 136:186
137:69 138:193 139:34 140:230 141:108 142:135
143:124 144:166 145:41 146:282 147:87 148:262
149:129 150:91 151:62 152:118 153:70 154:2
155:132 156:61 157:72 158:145 159:161 160:63
161:60 162:382 163:83 164:219 165:169 166:125
167:222 168:363 169:131 170:310 171:8 192:5651
193:3008 194:2219 195:1544 196:595 198:3889 199:3302
200:3978 201:34 202:5046 203:5829 204:3587 205:2102
206:2305 207:2536 208:2111 209:3054 210:1573 211:719
212:1162 213:1255 214:232 215:31 216:3739 217:1073
218:178 219:89 220:302 221:89 222:32
End of report
Routing Table Report 04:00 +10GMT Sun 26 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153379
Prefixes after maximum aggregation: 89895
Unique aggregates announced to Internet: 73417
Total ASes present in the Internet Routing Table: 18697
Origin-only ASes present in the Internet Routing Table: 16231
Origin ASes announcing only one prefix: 7603
Transit ASes present in the Internet Routing Table: 2466
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361399396
Equivalent to 81 /8s, 37 /16s and 78 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71148
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30067
Total APNIC prefixes after maximum aggregation: 14723
Prefixes being announced from the APNIC address blocks: 28120
Unique aggregates announced from the APNIC address blocks: 14481
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 169830912
Equivalent to 10 /8s, 31 /16s and 106 /24s
Percentage of available APNIC address space announced: 77.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86468
Total ARIN prefixes after maximum aggregation: 52145
Prefixes being announced from the ARIN address blocks: 66150
Unique aggregates announced from the ARIN address blocks: 23822
ARIN Region origin ASes present in the Internet Routing Table: 9783
ARIN Region origin ASes announcing only one prefix: 3521
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 237157632
Equivalent to 14 /8s, 34 /16s and 189 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28755
Total RIPE prefixes after maximum aggregation: 19932
Prefixes being announced from the RIPE address blocks: 25675
Unique aggregates announced from the RIPE address blocks: 16915
RIPE Region origin ASes present in the Internet Routing Table: 6155
RIPE Region origin ASes announcing only one prefix: 3293
RIPE Region transit ASes present in the Internet Routing Table: 1057
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 183520768
Equivalent to 10 /8s, 240 /16s and 78 /24s
Percentage of available RIPE address space announced: 64.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6799
Total LACNIC prefixes after maximum aggregation: 2391
Prefixes being announced from the LACNIC address blocks: 6655
Unique aggregates announced from the LACNIC address blocks: 4088
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16985344
Equivalent to 1 /8s, 3 /16s and 45 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1283
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 860
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2100224
Equivalent to 0 /8s, 32 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 870 4465 167 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 583 47 29 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 438 176 91 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 355 1856 328 SINET Japan
9929 354 164 40 China Netcom Corp.
703 318 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
9498 232 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 164 Korea Internet Infrastructure
4814 223 232 6 China Telecom (Group)
17974 220 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1421 6571 981 AT&T WorldNet Services
701 1099 8357 896 UUNET Technologies, Inc.
721 1074 21840 299 DLA Systems Automation Center
1239 935 2882 625 Sprint
2386 857 528 610 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 820 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 615 10889 450 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 627 2023 518 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 222 481 218 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 159 1362 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 140 68 ImpSat
8151 319 472 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 160 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 44 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
11845 17 9 16 Data Pro Business Online
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1074 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 870 703 Data Communications Bureau
4323 820 597 Time Warner Telecom
9583 583 554 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 438 347 Videsh Sanchar Nigam Ltd. Aut
6467 375 344 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:564 /16:8223 /17:2339 /18:4022
/19:10024 /20:10613 /21:8182 /22:11373 /23:12916 /24:83645
/25:281 /26:239 /27:127 /28:60 /29:35 /30:130
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 857 AT&T Data Communications Serv
7018 584 1421 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 411 583 Satyam Infoway Ltd.,
702 382 627 UUNET - Commercial IP service
1239 372 935 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
6517 290 313 Yipes Communications, Inc.
10036 290 290 C&M Communication Co. Ltd.
13609 286 328 Choice One Communications Inc
6467 284 375 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 282 1099 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 820 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:702 62:523
63:1851 64:2520 65:2082 66:2535 67:478 68:517
69:857 70:48 71:1 72:21 80:525 81:603
82:380 83:217 84:74 85:43 128:106 129:164
130:89 131:193 132:36 134:190 135:30 136:186
137:69 138:193 139:34 140:230 141:108 142:135
143:124 144:166 145:41 146:283 147:87 148:262
149:129 150:91 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:146 159:161 160:63
161:60 162:382 163:83 164:217 165:170 166:125
167:222 168:365 169:131 170:312 171:8 192:5657
193:3023 194:2221 195:1546 196:595 198:3888 199:3307
200:3980 201:34 202:5038 203:5830 204:3591 205:2103
206:2303 207:2540 208:2111 209:3053 210:1572 211:708
212:1166 213:1256 214:231 215:31 216:3740 217:1073
218:178 219:89 220:302 221:90 222:33
End of report
Routing Table Report 04:00 +10GMT Sat 25 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153434
Prefixes after maximum aggregation: 89843
Unique aggregates announced to Internet: 73421
Total ASes present in the Internet Routing Table: 18694
Origin-only ASes present in the Internet Routing Table: 16228
Origin ASes announcing only one prefix: 7603
Transit ASes present in the Internet Routing Table: 2466
Transit-only ASes present in the Internet Routing Table: 79
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361259876
Equivalent to 81 /8s, 35 /16s and 45 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71183
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30059
Total APNIC prefixes after maximum aggregation: 14724
Prefixes being announced from the APNIC address blocks: 28109
Unique aggregates announced from the APNIC address blocks: 14507
APNIC Region origin ASes present in the Internet Routing Table: 2176
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169704704
Equivalent to 10 /8s, 29 /16s and 125 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86430
Total ARIN prefixes after maximum aggregation: 52101
Prefixes being announced from the ARIN address blocks: 66161
Unique aggregates announced from the ARIN address blocks: 23807
ARIN Region origin ASes present in the Internet Routing Table: 9785
ARIN Region origin ASes announcing only one prefix: 3524
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237111552
Equivalent to 14 /8s, 34 /16s and 9 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28859
Total RIPE prefixes after maximum aggregation: 19924
Prefixes being announced from the RIPE address blocks: 25774
Unique aggregates announced from the RIPE address blocks: 16904
RIPE Region origin ASes present in the Internet Routing Table: 6151
RIPE Region origin ASes announcing only one prefix: 3290
RIPE Region transit ASes present in the Internet Routing Table: 1055
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 183483136
Equivalent to 10 /8s, 239 /16s and 187 /24s
Percentage of available RIPE address space announced: 64.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6796
Total LACNIC prefixes after maximum aggregation: 2390
Prefixes being announced from the LACNIC address blocks: 6654
Unique aggregates announced from the LACNIC address blocks: 4088
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16985344
Equivalent to 1 /8s, 3 /16s and 45 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1283
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 860
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2100224
Equivalent to 0 /8s, 32 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 869 4433 168 Data Communications Bureau
1221 791 1184 565 Telstra Pty Ltd
9583 580 47 37 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 437 176 91 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 355 1856 328 SINET Japan
9929 354 164 40 China Netcom Corp.
703 319 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
9498 232 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 164 Korea Internet Infrastructure
4814 223 232 6 China Telecom (Group)
17974 220 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1425 6571 984 AT&T WorldNet Services
701 1099 8357 896 UUNET Technologies, Inc.
721 1074 21840 299 DLA Systems Automation Center
1239 939 2883 628 Sprint
2386 858 528 611 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 821 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 655 3405 502 Qwest
3356 615 10889 450 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 627 2023 518 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
680 251 2025 239 DFN-IP service G-WiN
21502 235 40 3 NUMERICABLE is a cabled netwo
3246 224 483 220 Song Networks
9121 217 211 16 TTnet Autonomous System
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 159 1362 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 140 68 ImpSat
8151 320 473 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 157 68 18 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 44 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
11845 17 9 16 Data Pro Business Online
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1074 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 869 701 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 543 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 437 346 Videsh Sanchar Nigam Ltd. Aut
6467 376 345 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 939 311 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:563 /16:8226 /17:2340 /18:4021
/19:10024 /20:10605 /21:8199 /22:11381 /23:13017 /24:83580
/25:281 /26:239 /27:127 /28:60 /29:35 /30:130
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 858 AT&T Data Communications Serv
7018 584 1425 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 580 Satyam Infoway Ltd.,
702 382 627 UUNET - Commercial IP service
1239 373 939 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
6517 290 313 Yipes Communications, Inc.
10036 290 290 C&M Communication Co. Ltd.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 282 1099 UUNET Technologies, Inc.
4323 267 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
20115 250 574 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:700 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:702 62:523
63:1853 64:2519 65:2082 66:2535 67:478 68:517
69:856 70:48 71:1 72:21 80:525 81:585
82:355 83:217 84:73 85:70 128:106 129:164
130:89 131:193 132:36 134:187 135:30 136:186
137:70 138:193 139:34 140:230 141:108 142:135
143:124 144:166 145:41 146:283 147:87 148:262
149:129 150:91 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:146 159:162 160:63
161:60 162:383 163:83 164:189 165:170 166:125
167:222 168:365 169:131 170:312 171:8 192:5658
193:3022 194:2221 195:1546 196:595 198:3890 199:3309
200:3979 201:34 202:5035 203:5826 204:3590 205:2105
206:2306 207:2540 208:2111 209:3054 210:1572 211:709
212:1167 213:1254 214:231 215:31 216:3742 217:1067
218:178 219:89 220:301 221:89 222:33
End of report
Routing Table Report 04:00 +10GMT Fri 24 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153327
Prefixes after maximum aggregation: 89815
Unique aggregates announced to Internet: 73450
Total ASes present in the Internet Routing Table: 18693
Origin-only ASes present in the Internet Routing Table: 16221
Origin ASes announcing only one prefix: 7601
Transit ASes present in the Internet Routing Table: 2472
Transit-only ASes present in the Internet Routing Table: 77
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361250152
Equivalent to 81 /8s, 35 /16s and 7 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71076
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30070
Total APNIC prefixes after maximum aggregation: 14709
Prefixes being announced from the APNIC address blocks: 28124
Unique aggregates announced from the APNIC address blocks: 14528
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 648
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169674496
Equivalent to 10 /8s, 29 /16s and 7 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86420
Total ARIN prefixes after maximum aggregation: 52091
Prefixes being announced from the ARIN address blocks: 66136
Unique aggregates announced from the ARIN address blocks: 23805
ARIN Region origin ASes present in the Internet Routing Table: 9782
ARIN Region origin ASes announcing only one prefix: 3522
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237070848
Equivalent to 14 /8s, 33 /16s and 106 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28761
Total RIPE prefixes after maximum aggregation: 19925
Prefixes being announced from the RIPE address blocks: 25671
Unique aggregates announced from the RIPE address blocks: 16918
RIPE Region origin ASes present in the Internet Routing Table: 6153
RIPE Region origin ASes announcing only one prefix: 3289
RIPE Region transit ASes present in the Internet Routing Table: 1057
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 183616256
Equivalent to 10 /8s, 241 /16s and 195 /24s
Percentage of available RIPE address space announced: 64.4
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6792
Total LACNIC prefixes after maximum aggregation: 2392
Prefixes being announced from the LACNIC address blocks: 6652
Unique aggregates announced from the LACNIC address blocks: 4089
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16984832
Equivalent to 1 /8s, 3 /16s and 43 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1277
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 859
Unique aggregates announced from the AfriNIC address blocks: 681
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2098176
Equivalent to 0 /8s, 32 /16s and 4 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 869 4433 168 Data Communications Bureau
1221 791 1184 565 Telstra Pty Ltd
9583 580 47 37 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 436 176 91 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 315 344 246 UUNET
17557 306 22 149 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 286 272 229 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
9498 232 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 164 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 223 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1423 6571 981 AT&T WorldNet Services
701 1087 8355 889 UUNET Technologies, Inc.
721 1073 21838 298 DLA Systems Automation Center
1239 935 2882 625 Sprint
2386 858 528 611 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 821 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 614 10889 449 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 627 2023 518 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 276 464 264 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1361 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 72 ImpSat
8151 318 473 139 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 156 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 117 148 84 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 44 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1073 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 869 701 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 543 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 436 345 Videsh Sanchar Nigam Ltd. Aut
6467 376 345 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:563 /16:8225 /17:2344 /18:4028
/19:10031 /20:10611 /21:8179 /22:11364 /23:12894 /24:83607
/25:280 /26:240 /27:127 /28:60 /29:35 /30:130
/31:0 /32:52
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 858 AT&T Data Communications Serv
7018 583 1423 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 580 Satyam Infoway Ltd.,
702 382 627 UUNET - Commercial IP service
1239 372 935 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
6517 290 313 Yipes Communications, Inc.
10036 290 290 C&M Communication Co. Ltd.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1087 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1460 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:703 62:522
63:1849 64:2519 65:2076 66:2530 67:478 68:518
69:856 70:47 71:1 72:21 80:526 81:604
82:371 83:217 84:81 85:41 128:107 129:164
130:89 131:193 132:36 134:190 135:30 136:188
137:69 138:193 139:34 140:230 141:108 142:135
143:122 144:166 145:41 146:283 147:87 148:253
149:129 150:92 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:145 159:162 160:63
161:60 162:383 163:83 164:190 165:170 166:125
167:222 168:366 169:131 170:313 171:8 192:5655
193:3026 194:2220 195:1546 196:595 198:3888 199:3304
200:3977 201:34 202:5044 203:5833 204:3593 205:2114
206:2308 207:2542 208:2109 209:3051 210:1581 211:706
212:1163 213:1259 214:231 215:31 216:3737 217:1064
218:178 219:89 220:301 221:89 222:33
End of report
Routing Table Report 04:00 +10GMT Thu 23 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153110
Prefixes after maximum aggregation: 89829
Unique aggregates announced to Internet: 73353
Total ASes present in the Internet Routing Table: 18679
Origin-only ASes present in the Internet Routing Table: 16216
Origin ASes announcing only one prefix: 7587
Transit ASes present in the Internet Routing Table: 2463
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 18
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1360958564
Equivalent to 81 /8s, 30 /16s and 148 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70967
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29998
Total APNIC prefixes after maximum aggregation: 14710
Prefixes being announced from the APNIC address blocks: 28056
Unique aggregates announced from the APNIC address blocks: 14509
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 644
APNIC Region transit ASes present in the Internet Routing Table: 327
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169684992
Equivalent to 10 /8s, 29 /16s and 48 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86317
Total ARIN prefixes after maximum aggregation: 52139
Prefixes being announced from the ARIN address blocks: 66021
Unique aggregates announced from the ARIN address blocks: 23804
ARIN Region origin ASes present in the Internet Routing Table: 9776
ARIN Region origin ASes announcing only one prefix: 3514
ARIN Region transit ASes present in the Internet Routing Table: 967
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237043200
Equivalent to 14 /8s, 32 /16s and 254 /24s
Percentage of available ARIN address space announced: 70.6
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28720
Total RIPE prefixes after maximum aggregation: 19889
Prefixes being announced from the RIPE address blocks: 25626
Unique aggregates announced from the RIPE address blocks: 16848
RIPE Region origin ASes present in the Internet Routing Table: 6145
RIPE Region origin ASes announcing only one prefix: 3288
RIPE Region transit ASes present in the Internet Routing Table: 1047
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 183410688
Equivalent to 10 /8s, 238 /16s and 160 /24s
Percentage of available RIPE address space announced: 64.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6791
Total LACNIC prefixes after maximum aggregation: 2393
Prefixes being announced from the LACNIC address blocks: 6635
Unique aggregates announced from the LACNIC address blocks: 4083
LACNIC Region origin ASes present in the Internet Routing Table: 409
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16930816
Equivalent to 1 /8s, 2 /16s and 88 /24s
Percentage of available LACNIC address space announced: 50.5
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1277
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 856
Unique aggregates announced from the AfriNIC address blocks: 680
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2098432
Equivalent to 0 /8s, 32 /16s and 5 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 867 4433 168 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 580 47 37 Satyam Infoway Ltd.,
4766 551 3409 271 Korea Internet Exchange for "
4755 437 176 92 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 315 344 246 UUNET
17557 306 22 149 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 286 272 229 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9498 232 81 54 BHARTI BT INTERNET LTD.
9800 232 381 71 CHINA UNICOM
4802 231 28 140 Wantree Development
7563 226 48 164 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 220 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1419 6570 985 AT&T WorldNet Services
701 1087 8355 889 UUNET Technologies, Inc.
721 1070 21840 299 DLA Systems Automation Center
1239 934 2882 624 Sprint
2386 857 528 610 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 821 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 616 10889 450 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
7132 449 8290 382 SBC Internet Services
6198 447 382 203 BellSouth Network Solutions,
27364 442 44 20 Armstrong Cable Services
5668 423 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2023 519 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 275 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 206 118 190 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1361 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 72 ImpSat
8151 317 473 138 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 156 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
10481 82 32 7 Prima S.A.
13999 82 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 43 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 26 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1070 771 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 867 699 Data Communications Bureau
4323 821 598 Time Warner Telecom
9583 580 543 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 417 394 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
6467 377 346 E.Spire Communications, Inc.
4755 437 345 Videsh Sanchar Nigam Ltd. Aut
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 934 310 Sprint
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
4766 551 280 Korea Internet Exchange for "
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:562 /16:8226 /17:2338 /18:4003
/19:10015 /20:10611 /21:8161 /22:11347 /23:12908 /24:83473
/25:270 /26:239 /27:127 /28:60 /29:36 /30:129
/31:0 /32:48
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 857 AT&T Data Communications Serv
7018 580 1419 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 410 580 Satyam Infoway Ltd.,
702 383 628 UUNET - Commercial IP service
1239 372 934 Sprint
4766 371 551 Korea Internet Exchange for "
5668 366 423 Century Telephone
6198 326 447 BellSouth Network Solutions,
10036 290 290 C&M Communication Co. Ltd.
6517 287 310 Yipes Communications, Inc.
6467 286 377 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1087 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 821 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
20115 250 574 Charter Communications
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1459 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:66 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:700 62:520
63:1846 64:2507 65:2077 66:2517 67:478 68:518
69:832 70:46 71:1 72:21 80:525 81:603
82:372 83:215 84:81 85:33 128:107 129:163
130:89 131:193 132:36 134:190 135:30 136:188
137:69 138:193 139:34 140:230 141:110 142:135
143:124 144:165 145:41 146:283 147:95 148:262
149:129 150:92 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:138 159:162 160:63
161:60 162:383 163:84 164:222 165:170 166:125
167:222 168:366 169:131 170:313 171:8 192:5657
193:3009 194:2217 195:1545 196:592 198:3862 199:3306
200:3970 201:33 202:4995 203:5837 204:3593 205:2113
206:2300 207:2546 208:2110 209:3045 210:1581 211:703
212:1163 213:1258 214:231 215:31 216:3737 217:1070
218:178 219:89 220:299 221:89 222:33
End of report
Routing Table Report 04:00 +10GMT Wed 22 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153074
Prefixes after maximum aggregation: 89777
Unique aggregates announced to Internet: 73305
Total ASes present in the Internet Routing Table: 18674
Origin-only ASes present in the Internet Routing Table: 16205
Origin ASes announcing only one prefix: 7592
Transit ASes present in the Internet Routing Table: 2469
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 18
Prefixes from unregistered ASNs in the Routing Table: 9
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1360833884
Equivalent to 81 /8s, 28 /16s and 173 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.3
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 70968
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 29965
Total APNIC prefixes after maximum aggregation: 14719
Prefixes being announced from the APNIC address blocks: 28027
Unique aggregates announced from the APNIC address blocks: 14508
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 328
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 16
Number of APNIC addresses announced to Internet: 169586688
Equivalent to 10 /8s, 27 /16s and 176 /24s
Percentage of available APNIC address space announced: 77.4
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86321
Total ARIN prefixes after maximum aggregation: 52082
Prefixes being announced from the ARIN address blocks: 66105
Unique aggregates announced from the ARIN address blocks: 23792
ARIN Region origin ASes present in the Internet Routing Table: 9782
ARIN Region origin ASes announcing only one prefix: 3521
ARIN Region transit ASes present in the Internet Routing Table: 970
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 237083904
Equivalent to 14 /8s, 33 /16s and 157 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28729
Total RIPE prefixes after maximum aggregation: 19883
Prefixes being announced from the RIPE address blocks: 25638
Unique aggregates announced from the RIPE address blocks: 16840
RIPE Region origin ASes present in the Internet Routing Table: 6136
RIPE Region origin ASes announcing only one prefix: 3280
RIPE Region transit ASes present in the Internet Routing Table: 1050
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 18
Number of RIPE addresses announced to Internet: 183427328
Equivalent to 10 /8s, 238 /16s and 225 /24s
Percentage of available RIPE address space announced: 64.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6773
Total LACNIC prefixes after maximum aggregation: 2395
Prefixes being announced from the LACNIC address blocks: 6617
Unique aggregates announced from the LACNIC address blocks: 4067
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 77
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16918784
Equivalent to 1 /8s, 2 /16s and 41 /24s
Percentage of available LACNIC address space announced: 50.4
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1278
Total AfriNIC prefixes after maximum aggregation: 698
Prefixes being announced from the AfriNIC address blocks: 851
Unique aggregates announced from the AfriNIC address blocks: 676
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2097408
Equivalent to 0 /8s, 32 /16s and 1 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 868 4433 168 Data Communications Bureau
1221 793 1184 567 Telstra Pty Ltd
9583 579 47 37 Satyam Infoway Ltd.,
4766 550 3409 271 Korea Internet Exchange for "
4755 442 176 93 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 356 1857 329 SINET Japan
9929 354 164 40 China Netcom Corp.
703 314 344 245 UUNET
17557 305 22 148 Pakistan Telecom
10036 289 26 265 C&M Communication Co. Ltd.
2764 287 272 230 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 232 381 71 CHINA UNICOM
4802 231 28 140 Wantree Development
9498 230 81 54 BHARTI BT INTERNET LTD.
7563 227 48 165 Korea Internet Infrastructure
4780 223 225 27 Digital United Inc.
4814 220 232 6 China Telecom (Group)
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1414 6554 975 AT&T WorldNet Services
701 1086 8355 890 UUNET Technologies, Inc.
721 1067 21840 299 DLA Systems Automation Center
1239 908 2865 609 Sprint
2386 859 528 612 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 818 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 655 3405 502 Qwest
3356 616 10889 450 Level 3 Communications, LLC
20115 573 465 300 Charter Communications
3561 549 2385 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 483 733 95 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
7132 452 8292 385 SBC Internet Services
6198 447 382 202 BellSouth Network Solutions,
27364 441 36 19 Armstrong Cable Services
5668 423 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 628 2023 519 UUNET - Commercial IP service
3320 297 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 275 463 263 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 224 483 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
1257 206 708 172 SWIPnet Swedish IP Network
8708 206 118 190 Romania Data Systems S.A.
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 158 1361 69 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 144 138 100 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 350 139 72 ImpSat
8151 319 473 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 55 Servicios Alestra S.A de C.V
6147 188 94 20 Telefonica Del Peru
11664 169 14 24 Keytech SA
7303 146 68 18 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
6535 84 7 25 Chilesat Servicios Empresari
11311 83 8 23 Sinectis S.A.
10481 82 32 7 Prima S.A.
13999 82 52 9 Mega Cable S.A. de C.V.
4270 80 18 9 Red de Interconexion Universi
5639 77 8 8 Telecommunications Services o
15311 77 23 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 75 271 68 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 42 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1067 768 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 868 700 Data Communications Bureau
4323 818 595 Time Warner Telecom
9583 579 542 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 441 422 Armstrong Cable Services
5668 423 405 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 483 388 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 442 349 Videsh Sanchar Nigam Ltd. Aut
6467 376 345 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 908 299 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
65000 PRIVATE 217.68.56.0/22 29263 HAAGnet, municipalit
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:562 /16:8224 /17:2337 /18:4007
/19:10014 /20:10613 /21:8155 /22:11358 /23:12924 /24:83452
/25:268 /26:238 /27:127 /28:45 /29:26 /30:122
/31:0 /32:45
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 629 859 AT&T Data Communications Serv
7018 583 1414 AT&T WorldNet Services
27364 427 441 Armstrong Cable Services
9583 409 579 Satyam Infoway Ltd.,
702 383 628 UUNET - Commercial IP service
4766 370 550 Korea Internet Exchange for "
5668 366 423 Century Telephone
1239 354 908 Sprint
6198 326 447 BellSouth Network Solutions,
10036 289 289 C&M Communication Co. Ltd.
6517 286 309 Yipes Communications, Inc.
13609 286 328 Choice One Communications Inc
6467 285 376 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 270 1086 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 265 818 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1456 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:66 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 60:12 61:698 62:521 63:1847
64:2518 65:2076 66:2530 67:479 68:520 69:857
70:46 71:1 72:21 80:530 81:603 82:372
83:214 84:81 85:33 128:107 129:163 130:74
131:193 132:36 134:187 135:30 136:188 137:70
138:193 139:34 140:230 141:110 142:135 143:123
144:165 145:41 146:283 147:95 148:262 149:129
150:92 151:62 152:118 153:70 154:2 155:132
156:62 157:72 158:138 159:162 160:61 161:60
162:366 163:83 164:222 165:170 166:125 167:222
168:366 169:131 170:313 171:8 192:5654 193:3016
194:2214 195:1543 196:588 198:3889 199:3307 200:3954
201:34 202:4989 203:5826 204:3585 205:2093 206:2296
207:2543 208:2111 209:3048 210:1580 211:703 212:1160
213:1259 214:230 215:31 216:3748 217:1070 218:179
219:88 220:300 221:88 222:32
End of report
