Routing Table Report 04:00 +10GMT Tue 01 Feb, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155273
Prefixes after maximum aggregation: 90449
Unique aggregates announced to Internet: 74293
Total ASes present in the Internet Routing Table: 18879
Origin-only ASes present in the Internet Routing Table: 16392
Origin ASes announcing only one prefix: 7690
Transit ASes present in the Internet Routing Table: 2487
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 21
Number of addresses announced to Internet: 1371340588
Equivalent to 81 /8s, 188 /16s and 255 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72488
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30818
Total APNIC prefixes after maximum aggregation: 14883
Prefixes being announced from the APNIC address blocks: 28845
Unique aggregates announced from the APNIC address blocks: 14593
APNIC Region origin ASes present in the Internet Routing Table: 2197
APNIC Region origin ASes announcing only one prefix: 651
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: 172393344
Equivalent to 10 /8s, 70 /16s and 131 /24s
Percentage of available APNIC address space announced: 64.0
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 87132
Total ARIN prefixes after maximum aggregation: 52261
Prefixes being announced from the ARIN address blocks: 66466
Unique aggregates announced from the ARIN address blocks: 24004
ARIN Region origin ASes present in the Internet Routing Table: 9834
ARIN Region origin ASes announcing only one prefix: 3572
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: 16
Number of ARIN addresses announced to Internet: 240066816
Equivalent to 14 /8s, 79 /16s and 33 /24s
Percentage of available ARIN address space announced: 71.5
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: 29177
Total RIPE prefixes after maximum aggregation: 20203
Prefixes being announced from the RIPE address blocks: 26153
Unique aggregates announced from the RIPE address blocks: 17329
RIPE Region origin ASes present in the Internet Routing Table: 6259
RIPE Region origin ASes announcing only one prefix: 3321
RIPE Region transit ASes present in the Internet Routing Table: 1060
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187150912
Equivalent to 11 /8s, 39 /16s and 178 /24s
Percentage of available RIPE address space announced: 65.6
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: 6811
Total LACNIC prefixes after maximum aggregation: 2387
Prefixes being announced from the LACNIC address blocks: 6687
Unique aggregates announced from the LACNIC address blocks: 4055
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17311232
Equivalent to 1 /8s, 8 /16s and 38 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1329
Total AfriNIC prefixes after maximum aggregation: 715
Prefixes being announced from the AfriNIC address blocks: 876
Unique aggregates announced from the AfriNIC address blocks: 694
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2107904
Equivalent to 0 /8s, 32 /16s and 42 /24s
Percentage of available AfriNIC address space announced: 12.6
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 884 4624 171 Data Communications Bureau
1221 786 1184 561 Telstra Pty Ltd
4766 582 3414 279 Korea Internet Exchange for "
9583 571 48 11 Satyam Infoway Ltd.,
4755 454 178 100 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
9929 350 164 35 China Netcom Corp.
2907 346 1838 321 SINET Japan
17557 323 23 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 271 340 212 UUNET
7545 267 84 58 TPG Internet Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 235 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
17974 227 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1456 6607 976 AT&T WorldNet Services
721 1126 21803 315 DLA Systems Automation Center
701 1066 8336 912 UUNET Technologies, Inc.
1239 942 2880 620 Sprint
6197 844 378 400 BellSouth Network Solutions,
4323 837 672 218 Time Warner Telecom
2386 815 505 603 AT&T Data Communications Serv
18566 765 208 6 Covad Communications
7015 683 212 22 AT&T Broadband
209 655 3404 502 Qwest
3356 591 10867 441 Level 3 Communications, LLC
3561 587 2370 416 Cable & Wireless USA
20115 569 474 303 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 502 820 97 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 453 472 203 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 438 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 288 1112 276 TeliaNet Sweden
8220 275 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 226 471 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 211 119 192 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
3215 187 1024 80 France Telecom Transpac
5515 187 842 135 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 159 322 105 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 140 219 124 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 188 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 134 90 91 Global One Communicaoes Ltda
6503 116 147 80 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
4270 81 18 9 Red de Interconexion Universi
5639 81 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 268 636 226 The Internet Solution
5536 112 15 18 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1126 811 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 884 713 Data Communications Bureau
7015 683 661 AT&T Broadband
4323 837 619 Time Warner Telecom
9583 571 560 Satyam Infoway Ltd.,
6197 844 444 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 438 419 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 502 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
22909 423 358 Comcast Cable Corporation
4755 454 354 Videsh Sanchar Nigam Ltd. Aut
6467 364 333 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
1239 942 322 Sprint
9929 350 315 China Netcom Corp.
4766 582 303 Korea Internet Exchange for "
13609 336 301 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
172.215.0.0/16 1668 GNN Hosting Service
172.216.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:575 /16:8284 /17:2383 /18:4071
/19:10047 /20:10623 /21:8415 /22:11717 /23:12924 /24:84714
/25:299 /26:261 /27:126 /28:63 /29:33 /30:130
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 689 844 BellSouth Network Solutions,
7015 651 683 AT&T Broadband
7018 619 1456 AT&T WorldNet Services
2386 588 815 AT&T Data Communications Serv
27364 445 460 Armstrong Cable Services
9583 401 571 Satyam Infoway Ltd.,
4766 398 582 Korea Internet Exchange for "
702 377 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 369 942 Sprint
6198 326 453 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 336 Choice One Communications Inc
4323 282 837 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 275 364 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 269 1066 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1480 13:1 15:6 16:2
17:3 18:4 20:4 24:1037 32:68 33:3
38:91 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:668 62:511
63:1851 64:2572 65:2101 66:2592 67:490 68:496
69:901 70:55 71:1 72:50 80:559 81:507
82:364 83:235 84:101 85:81 128:127 129:165
130:90 131:194 132:37 134:144 135:30 136:210
137:67 138:181 139:47 140:191 141:102 142:139
143:120 144:244 145:45 146:281 147:97 148:263
149:161 150:94 151:62 152:111 153:71 154:2
155:136 156:70 157:76 158:149 159:164 160:67
161:59 162:414 163:85 164:213 165:157 166:127
167:225 168:386 169:131 170:316 171:8 192:5664
193:3069 194:2250 195:1572 196:606 198:3846 199:3243
200:3946 201:43 202:5212 203:5889 204:3591 205:2027
206:2319 207:2665 208:2097 209:3062 210:1560 211:766
212:1144 213:1265 214:238 215:31 216:3704 217:1086
218:187 219:124 220:342 221:79 222:77
End of report
Routing Table Report 04:00 +10GMT Mon 31 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 155007
Prefixes after maximum aggregation: 90417
Unique aggregates announced to Internet: 74116
Total ASes present in the Internet Routing Table: 18885
Origin-only ASes present in the Internet Routing Table: 16394
Origin ASes announcing only one prefix: 7697
Transit ASes present in the Internet Routing Table: 2491
Transit-only ASes present in the Internet Routing Table: 81
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1371004712
Equivalent to 81 /8s, 183 /16s and 223 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72319
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30677
Total APNIC prefixes after maximum aggregation: 14881
Prefixes being announced from the APNIC address blocks: 28706
Unique aggregates announced from the APNIC address blocks: 14548
APNIC Region origin ASes present in the Internet Routing Table: 2197
APNIC Region origin ASes announcing only one prefix: 652
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 172247936
Equivalent to 10 /8s, 68 /16s and 75 /24s
Percentage of available APNIC address space announced: 63.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86984
Total ARIN prefixes after maximum aggregation: 52253
Prefixes being announced from the ARIN address blocks: 66344
Unique aggregates announced from the ARIN address blocks: 24010
ARIN Region origin ASes present in the Internet Routing Table: 9833
ARIN Region origin ASes announcing only one prefix: 3569
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: 16
Number of ARIN addresses announced to Internet: 240028672
Equivalent to 14 /8s, 78 /16s and 140 /24s
Percentage of available ARIN address space announced: 71.5
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: 29203
Total RIPE prefixes after maximum aggregation: 20203
Prefixes being announced from the RIPE address blocks: 26178
Unique aggregates announced from the RIPE address blocks: 17214
RIPE Region origin ASes present in the Internet Routing Table: 6265
RIPE Region origin ASes announcing only one prefix: 3331
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: 23
Number of RIPE addresses announced to Internet: 187072832
Equivalent to 11 /8s, 38 /16s and 129 /24s
Percentage of available RIPE address space announced: 65.6
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: 6807
Total LACNIC prefixes after maximum aggregation: 2379
Prefixes being announced from the LACNIC address blocks: 6693
Unique aggregates announced from the LACNIC address blocks: 4056
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 121
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17311488
Equivalent to 1 /8s, 8 /16s and 39 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1330
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 867
Unique aggregates announced from the AfriNIC address blocks: 686
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2105856
Equivalent to 0 /8s, 32 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 12.6
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 886 4624 173 Data Communications Bureau
1221 786 1184 561 Telstra Pty Ltd
4766 581 3414 278 Korea Internet Exchange for "
9583 573 48 11 Satyam Infoway Ltd.,
4755 454 177 97 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 353 1856 326 SINET Japan
9929 350 164 35 China Netcom Corp.
17557 303 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 279 86 67 TPG Internet Pty Ltd
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 270 340 211 UUNET
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 235 81 54 BHARTI BT INTERNET LTD.
4802 230 28 139 Wantree Development
7563 225 48 159 Korea Internet Infrastructure
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1455 6607 975 AT&T WorldNet Services
721 1123 21787 314 DLA Systems Automation Center
701 1069 8336 915 UUNET Technologies, Inc.
1239 940 2880 618 Sprint
4323 837 672 218 Time Warner Telecom
6197 835 378 404 BellSouth Network Solutions,
2386 814 505 602 AT&T Data Communications Serv
18566 765 208 6 Covad Communications
209 664 3404 502 Qwest
3356 596 10868 442 Level 3 Communications, LLC
7015 596 212 22 AT&T Broadband
3561 587 2370 416 Cable & Wireless USA
20115 569 474 303 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 502 820 97 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 453 472 203 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 436 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 274 466 267 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 225 471 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 211 119 192 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 141 219 124 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 362 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 188 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 134 90 91 Global One Communicaoes Ltda
6503 116 147 80 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 24 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1123 809 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 886 713 Data Communications Bureau
4323 837 619 Time Warner Telecom
7015 596 574 AT&T Broadband
9583 573 562 Satyam Infoway Ltd.,
27364 460 441 Armstrong Cable Services
6197 835 431 BellSouth Network Solutions,
22773 436 417 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 502 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
22909 423 358 Comcast Cable Corporation
4755 454 357 Videsh Sanchar Nigam Ltd. Aut
6467 365 334 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
1239 940 322 Sprint
9929 350 315 China Netcom Corp.
4766 581 303 Korea Internet Exchange for "
13609 336 301 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:574 /16:8281 /17:2385 /18:4068
/19:10046 /20:10617 /21:8390 /22:11671 /23:12894 /24:84568
/25:297 /26:261 /27:124 /28:62 /29:33 /30:128
/31:0 /32:47
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 681 835 BellSouth Network Solutions,
7018 619 1455 AT&T WorldNet Services
2386 587 814 AT&T Data Communications Serv
7015 564 596 AT&T Broadband
27364 445 460 Armstrong Cable Services
9583 402 573 Satyam Infoway Ltd.,
4766 397 581 Korea Internet Exchange for "
702 377 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 369 940 Sprint
6198 326 453 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 336 Choice One Communications Inc
4323 282 837 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 276 365 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 269 1069 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1487 13:1 15:6 16:2
17:3 18:4 20:4 24:1006 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:636 62:515
63:1853 64:2570 65:2095 66:2589 67:487 68:495
69:895 70:54 71:2 72:50 80:558 81:503
82:363 83:234 84:100 85:81 128:122 129:167
130:90 131:194 132:36 134:144 135:30 136:209
137:77 138:180 139:47 140:191 141:102 142:139
143:121 144:249 145:45 146:276 147:97 148:262
149:161 150:94 151:62 152:111 153:71 154:2
155:136 156:68 157:76 158:149 159:164 160:67
161:59 162:414 163:84 164:213 165:157 166:127
167:225 168:381 169:131 170:316 171:8 192:5641
193:3067 194:2257 195:1574 196:597 198:3845 199:3250
200:3950 201:43 202:5183 203:5889 204:3594 205:2011
206:2310 207:2661 208:2101 209:3061 210:1560 211:768
212:1150 213:1269 214:238 215:31 216:3708 217:1081
218:187 219:122 220:341 221:79 222:74
End of report
Routing Table Report 04:00 +10GMT Sun 30 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154945
Prefixes after maximum aggregation: 90366
Unique aggregates announced to Internet: 74104
Total ASes present in the Internet Routing Table: 18882
Origin-only ASes present in the Internet Routing Table: 16394
Origin ASes announcing only one prefix: 7699
Transit ASes present in the Internet Routing Table: 2488
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 23
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1370848040
Equivalent to 81 /8s, 181 /16s and 123 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72279
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30648
Total APNIC prefixes after maximum aggregation: 14858
Prefixes being announced from the APNIC address blocks: 28679
Unique aggregates announced from the APNIC address blocks: 14528
APNIC Region origin ASes present in the Internet Routing Table: 2194
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: 172182656
Equivalent to 10 /8s, 67 /16s and 76 /24s
Percentage of available APNIC address space announced: 63.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86974
Total ARIN prefixes after maximum aggregation: 52223
Prefixes being announced from the ARIN address blocks: 66335
Unique aggregates announced from the ARIN address blocks: 24024
ARIN Region origin ASes present in the Internet Routing Table: 9829
ARIN Region origin ASes announcing only one prefix: 3569
ARIN Region transit ASes present in the Internet Routing Table: 965
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240044032
Equivalent to 14 /8s, 78 /16s and 200 /24s
Percentage of available ARIN address space announced: 71.5
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: 29179
Total RIPE prefixes after maximum aggregation: 20201
Prefixes being announced from the RIPE address blocks: 26160
Unique aggregates announced from the RIPE address blocks: 17212
RIPE Region origin ASes present in the Internet Routing Table: 6270
RIPE Region origin ASes announcing only one prefix: 3338
RIPE Region transit ASes present in the Internet Routing Table: 1064
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 23
Number of RIPE addresses announced to Internet: 187063616
Equivalent to 11 /8s, 38 /16s and 93 /24s
Percentage of available RIPE address space announced: 65.6
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: 6809
Total LACNIC prefixes after maximum aggregation: 2383
Prefixes being announced from the LACNIC address blocks: 6694
Unique aggregates announced from the LACNIC address blocks: 4056
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 121
LACNIC Region transit ASes present in the Internet Routing Table: 82
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17312000
Equivalent to 1 /8s, 8 /16s and 41 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1329
Total AfriNIC prefixes after maximum aggregation: 701
Prefixes being announced from the AfriNIC address blocks: 869
Unique aggregates announced from the AfriNIC address blocks: 688
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2106624
Equivalent to 0 /8s, 32 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 12.6
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 886 4624 173 Data Communications Bureau
1221 785 1183 560 Telstra Pty Ltd
4766 581 3414 278 Korea Internet Exchange for "
9583 573 48 11 Satyam Infoway Ltd.,
4755 459 178 101 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 351 1855 324 SINET Japan
9929 350 164 35 China Netcom Corp.
17557 303 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 271 340 212 UUNET
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 234 81 53 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 224 48 158 Korea Internet Infrastructure
7545 221 73 54 TPG Internet Pty Ltd
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1456 6607 976 AT&T WorldNet Services
721 1121 21787 314 DLA Systems Automation Center
701 1064 8320 912 UUNET Technologies, Inc.
1239 940 2880 618 Sprint
6197 837 378 402 BellSouth Network Solutions,
4323 836 672 217 Time Warner Telecom
2386 811 505 600 AT&T Data Communications Serv
18566 765 208 6 Covad Communications
209 663 3404 502 Qwest
3356 596 10867 441 Level 3 Communications, LLC
7015 596 212 22 AT&T Broadband
3561 587 2370 416 Cable & Wireless USA
20115 569 474 303 Charter Communications
852 525 1126 399 Telus Advanced Communications
6478 502 820 97 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 453 472 203 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 436 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 275 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 225 471 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 211 119 192 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 141 219 124 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 358 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 188 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 134 90 91 Global One Communicaoes Ltda
6503 115 147 79 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 32 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1121 807 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 886 713 Data Communications Bureau
4323 836 619 Time Warner Telecom
7015 596 574 AT&T Broadband
9583 573 562 Satyam Infoway Ltd.,
27364 460 441 Armstrong Cable Services
6197 837 435 BellSouth Network Solutions,
22773 436 417 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 502 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
4755 459 358 Videsh Sanchar Nigam Ltd. Aut
22909 423 358 Comcast Cable Corporation
6467 365 334 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
1239 940 322 Sprint
9929 350 315 China Netcom Corp.
4766 581 303 Korea Internet Exchange for "
13609 336 301 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:574 /16:8282 /17:2384 /18:4069
/19:10040 /20:10610 /21:8384 /22:11669 /23:12903 /24:84512
/25:298 /26:265 /27:128 /28:62 /29:32 /30:126
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 682 837 BellSouth Network Solutions,
7018 619 1456 AT&T WorldNet Services
2386 584 811 AT&T Data Communications Serv
7015 564 596 AT&T Broadband
27364 445 460 Armstrong Cable Services
9583 402 573 Satyam Infoway Ltd.,
4766 397 581 Korea Internet Exchange for "
702 378 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 369 940 Sprint
6198 326 453 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 293 336 Choice One Communications Inc
4323 281 836 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 276 365 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 267 1064 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1484 13:1 15:6 16:2
17:3 18:4 20:4 24:1002 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:22 59:2 60:12 61:636 62:515
63:1845 64:2570 65:2093 66:2591 67:489 68:495
69:900 70:53 71:2 72:50 80:554 81:502
82:362 83:234 84:100 85:81 128:125 129:167
130:90 131:194 132:37 134:144 135:30 136:208
137:76 138:180 139:47 140:191 141:100 142:138
143:120 144:248 145:45 146:278 147:97 148:263
149:161 150:94 151:62 152:111 153:71 154:2
155:136 156:68 157:76 158:149 159:164 160:67
161:59 162:413 163:84 164:213 165:157 166:127
167:223 168:382 169:131 170:315 171:8 192:5637
193:3068 194:2250 195:1574 196:598 198:3845 199:3246
200:3949 201:43 202:5197 203:5852 204:3597 205:2011
206:2319 207:2661 208:2096 209:3059 210:1557 211:767
212:1148 213:1267 214:238 215:31 216:3709 217:1080
218:187 219:125 220:341 221:79 222:74
End of report
Routing Table Report 04:00 +10GMT Sat 29 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154984
Prefixes after maximum aggregation: 90381
Unique aggregates announced to Internet: 74096
Total ASes present in the Internet Routing Table: 18880
Origin-only ASes present in the Internet Routing Table: 16393
Origin ASes announcing only one prefix: 7690
Transit ASes present in the Internet Routing Table: 2487
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1370739756
Equivalent to 81 /8s, 179 /16s and 212 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 58.5
Percentage of available address space allocated: 63.2
Total number of prefixes smaller than registry allocations: 72278
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30715
Total APNIC prefixes after maximum aggregation: 14875
Prefixes being announced from the APNIC address blocks: 28751
Unique aggregates announced from the APNIC address blocks: 14553
APNIC Region origin ASes present in the Internet Routing Table: 2194
APNIC Region origin ASes announcing only one prefix: 649
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: 172218240
Equivalent to 10 /8s, 67 /16s and 215 /24s
Percentage of available APNIC address space announced: 63.9
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7,
220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86924
Total ARIN prefixes after maximum aggregation: 52224
Prefixes being announced from the ARIN address blocks: 66269
Unique aggregates announced from the ARIN address blocks: 23997
ARIN Region origin ASes present in the Internet Routing Table: 9828
ARIN Region origin ASes announcing only one prefix: 3564
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 240024576
Equivalent to 14 /8s, 78 /16s and 124 /24s
Percentage of available ARIN address space announced: 71.5
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: 29197
Total RIPE prefixes after maximum aggregation: 20200
Prefixes being announced from the RIPE address blocks: 26172
Unique aggregates announced from the RIPE address blocks: 17218
RIPE Region origin ASes present in the Internet Routing Table: 6269
RIPE Region origin ASes announcing only one prefix: 3332
RIPE Region transit ASes present in the Internet Routing Table: 1067
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 187084864
Equivalent to 11 /8s, 38 /16s and 176 /24s
Percentage of available RIPE address space announced: 65.6
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: 6812
Total LACNIC prefixes after maximum aggregation: 2382
Prefixes being announced from the LACNIC address blocks: 6691
Unique aggregates announced from the LACNIC address blocks: 4033
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 121
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17316608
Equivalent to 1 /8s, 8 /16s and 59 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1330
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 873
Unique aggregates announced from the AfriNIC address blocks: 692
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2107648
Equivalent to 0 /8s, 32 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 12.6
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 886 4624 173 Data Communications Bureau
1221 785 1183 560 Telstra Pty Ltd
4766 582 3414 279 Korea Internet Exchange for "
9583 569 48 11 Satyam Infoway Ltd.,
4755 460 178 101 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 353 1856 326 SINET Japan
9929 350 164 35 China Netcom Corp.
17557 303 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 279 86 67 TPG Internet Pty Ltd
7474 277 296 207 Optus Communications Pty Ltd
2764 273 254 220 connect.com.au pty ltd
703 271 340 212 UUNET
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
9498 234 81 53 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 159 Korea Internet Infrastructure
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1457 6607 976 AT&T WorldNet Services
721 1122 21787 314 DLA Systems Automation Center
701 1063 8335 911 UUNET Technologies, Inc.
1239 926 2880 616 Sprint
6197 838 378 400 BellSouth Network Solutions,
4323 837 672 218 Time Warner Telecom
2386 813 505 601 AT&T Data Communications Serv
18566 766 208 6 Covad Communications
209 664 3404 503 Qwest
7015 596 212 22 AT&T Broadband
3356 591 10867 436 Level 3 Communications, LLC
20115 569 474 303 Charter Communications
3561 560 2370 415 Cable & Wireless USA
852 525 1126 399 Telus Advanced Communications
6478 501 819 96 AT&T Worldnet Services
3602 492 120 94 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
6198 456 488 200 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 436 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 275 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 225 471 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 210 119 191 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 158 322 104 LANLINK autonomous system
5400 141 219 124 BT Ignite European Backbone
25186 140 122 99 France Telecom Transpac's Tra
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 212 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 133 90 90 Global One Communicaoes Ltda
6503 116 147 81 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
4270 81 18 9 Red de Interconexion Universi
5639 81 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 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1122 808 DLA Systems Automation Center
18566 766 760 Covad Communications
4134 886 713 Data Communications Bureau
4323 837 619 Time Warner Telecom
7015 596 574 AT&T Broadband
9583 569 558 Satyam Infoway Ltd.,
27364 460 441 Armstrong Cable Services
6197 838 438 BellSouth Network Solutions,
22773 436 417 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 501 405 AT&T Worldnet Services
3602 492 398 Sprint Canada, Inc.
4755 460 359 Videsh Sanchar Nigam Ltd. Aut
22909 423 358 Comcast Cable Corporation
6467 366 335 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 350 315 China Netcom Corp.
1239 926 310 Sprint
4766 582 303 Korea Internet Exchange for "
13609 335 300 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:574 /16:8279 /17:2384 /18:4070
/19:10046 /20:10613 /21:8393 /22:11673 /23:12907 /24:84525
/25:296 /26:266 /27:128 /28:63 /29:33 /30:127
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 751 766 Covad Communications
6197 683 838 BellSouth Network Solutions,
7018 621 1457 AT&T WorldNet Services
2386 586 813 AT&T Data Communications Serv
7015 564 596 AT&T Broadband
27364 445 460 Armstrong Cable Services
4766 398 582 Korea Internet Exchange for "
9583 398 569 Satyam Infoway Ltd.,
702 377 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 367 926 Sprint
6198 328 456 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 292 335 Choice One Communications Inc
4323 282 837 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 277 366 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 263 1063 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1487 13:1 15:6 16:2
17:3 18:4 20:4 24:1006 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:22 59:2 60:12 61:632 62:511
63:1836 64:2561 65:2098 66:2587 67:484 68:495
69:892 70:54 71:2 72:47 80:557 81:501
82:362 83:232 84:101 85:81 128:126 129:167
130:89 131:194 132:37 134:144 135:30 136:208
137:76 138:181 139:47 140:191 141:102 142:139
143:121 144:248 145:45 146:281 147:97 148:262
149:161 150:94 151:62 152:111 153:71 154:2
155:136 156:70 157:75 158:149 159:163 160:67
161:61 162:413 163:84 164:212 165:157 166:127
167:223 168:382 169:131 170:316 171:8 192:5646
193:3072 194:2252 195:1574 196:602 198:3850 199:3229
200:3941 201:43 202:5205 203:5887 204:3596 205:2009
206:2315 207:2648 208:2104 209:3060 210:1555 211:767
212:1146 213:1270 214:239 215:31 216:3703 217:1088
218:187 219:125 220:341 221:79 222:77
End of report
Routing Table Report 04:00 +10GMT Fri 28 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154786
Prefixes after maximum aggregation: 90344
Unique aggregates announced to Internet: 74072
Total ASes present in the Internet Routing Table: 18877
Origin-only ASes present in the Internet Routing Table: 16388
Origin ASes announcing only one prefix: 7704
Transit ASes present in the Internet Routing Table: 2489
Transit-only ASes present in the Internet Routing Table: 80
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 22
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1370595884
Equivalent to 81 /8s, 177 /16s and 162 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 59.8
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 72108
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30619
Total APNIC prefixes after maximum aggregation: 14844
Prefixes being announced from the APNIC address blocks: 28660
Unique aggregates announced from the APNIC address blocks: 14542
APNIC Region origin ASes present in the Internet Routing Table: 2193
APNIC Region origin ASes announcing only one prefix: 650
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: 172187520
Equivalent to 10 /8s, 67 /16s and 95 /24s
Percentage of available APNIC address space announced: 78.6
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: 86894
Total ARIN prefixes after maximum aggregation: 52215
Prefixes being announced from the ARIN address blocks: 66206
Unique aggregates announced from the ARIN address blocks: 23977
ARIN Region origin ASes present in the Internet Routing Table: 9829
ARIN Region origin ASes announcing only one prefix: 3565
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: 239968768
Equivalent to 14 /8s, 77 /16s and 162 /24s
Percentage of available ARIN address space announced: 71.5
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: 29170
Total RIPE prefixes after maximum aggregation: 20193
Prefixes being announced from the RIPE address blocks: 26135
Unique aggregates announced from the RIPE address blocks: 17221
RIPE Region origin ASes present in the Internet Routing Table: 6266
RIPE Region origin ASes announcing only one prefix: 3341
RIPE Region transit ASes present in the Internet Routing Table: 1064
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 22
Number of RIPE addresses announced to Internet: 186980416
Equivalent to 11 /8s, 37 /16s and 24 /24s
Percentage of available RIPE address space announced: 65.6
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: 6775
Total LACNIC prefixes after maximum aggregation: 2392
Prefixes being announced from the LACNIC address blocks: 6686
Unique aggregates announced from the LACNIC address blocks: 4022
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 122
LACNIC Region transit ASes present in the Internet Routing Table: 83
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17302528
Equivalent to 1 /8s, 8 /16s and 4 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1322
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 874
Unique aggregates announced from the AfriNIC address blocks: 689
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2105600
Equivalent to 0 /8s, 32 /16s and 33 /24s
Percentage of available AfriNIC address space announced: 12.6
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 885 4608 173 Data Communications Bureau
1221 786 1184 561 Telstra Pty Ltd
4766 584 3415 279 Korea Internet Exchange for "
9583 576 48 11 Satyam Infoway Ltd.,
4755 455 176 101 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 353 1856 326 SINET Japan
9929 350 164 35 China Netcom Corp.
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 278 86 66 TPG Internet Pty Ltd
7474 276 280 206 Optus Communications Pty Ltd
2764 274 255 221 connect.com.au pty ltd
703 271 340 212 UUNET
9800 238 383 76 CHINA UNICOM
4808 233 172 128 CHINANET core WAN North
9498 233 81 53 BHARTI BT INTERNET LTD.
4802 226 28 135 Wantree Development
7563 224 48 158 Korea Internet Infrastructure
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1450 6588 973 AT&T WorldNet Services
721 1117 21755 310 DLA Systems Automation Center
701 1065 8335 913 UUNET Technologies, Inc.
1239 925 2880 616 Sprint
2386 849 511 602 AT&T Data Communications Serv
4323 836 672 218 Time Warner Telecom
6197 835 376 387 BellSouth Network Solutions,
18566 765 208 6 Covad Communications
209 665 3420 504 Qwest
3356 591 10867 437 Level 3 Communications, LLC
20115 568 473 304 Charter Communications
3561 560 2370 415 Cable & Wireless USA
852 525 1126 399 Telus Advanced Communications
6478 501 819 96 AT&T Worldnet Services
7015 501 212 22 AT&T Broadband
3602 491 120 93 Sprint Canada, Inc.
27364 460 44 19 Armstrong Cable Services
7132 452 8395 381 SBC Internet Services
6198 449 360 209 BellSouth Network Solutions,
22773 435 1085 19 Cox Communications, Inc. Atla
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 619 2023 511 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 278 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 225 471 220 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 210 119 191 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 176 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 159 322 105 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 139 217 122 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 116 147 81 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
15311 78 25 37 Telefonica Empresas
10292 77 6 22 TELECOMMUNICATIONS OF JAMAICA
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1117 807 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 885 712 Data Communications Bureau
4323 836 618 Time Warner Telecom
9583 576 565 Satyam Infoway Ltd.,
7015 501 479 AT&T Broadband
6197 835 448 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 435 416 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 501 405 AT&T Worldnet Services
3602 491 398 Sprint Canada, Inc.
22909 423 358 Comcast Cable Corporation
4755 455 354 Videsh Sanchar Nigam Ltd. Aut
6467 366 335 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 350 315 China Netcom Corp.
1239 925 309 Sprint
4766 584 305 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:575 /16:8278 /17:2379 /18:4069
/19:10042 /20:10599 /21:8339 /22:11625 /23:12900 /24:84464
/25:298 /26:262 /27:126 /28:63 /29:32 /30:128
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 683 835 BellSouth Network Solutions,
2386 622 849 AT&T Data Communications Serv
7018 615 1450 AT&T WorldNet Services
7015 473 501 AT&T Broadband
27364 445 460 Armstrong Cable Services
9583 403 576 Satyam Infoway Ltd.,
4766 399 584 Korea Internet Exchange for "
702 378 619 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 366 925 Sprint
6198 328 449 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
4323 281 836 Time Warner Telecom
6517 279 301 Yipes Communications, Inc.
6467 278 366 E.Spire Communications, Inc.
9929 275 350 China Netcom Corp.
701 263 1065 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1485 13:1 15:6 16:2
17:3 18:4 20:4 24:969 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:22 59:2 60:12 61:638 62:516
63:1835 64:2564 65:2091 66:2575 67:485 68:495
69:897 70:52 71:2 72:47 80:557 81:496
82:361 83:232 84:99 85:81 128:125 129:167
130:89 131:195 132:37 134:144 135:30 136:206
137:75 138:179 139:47 140:191 141:99 142:139
143:121 144:249 145:45 146:281 147:96 148:263
149:161 150:94 151:62 152:113 153:71 154:2
155:136 156:70 157:75 158:149 159:164 160:67
161:61 162:413 163:84 164:211 165:157 166:128
167:224 168:380 169:131 170:313 171:8 192:5644
193:3064 194:2248 195:1570 196:604 198:3848 199:3245
200:3939 201:43 202:5190 203:5878 204:3598 205:2041
206:2312 207:2649 208:2104 209:3072 210:1555 211:758
212:1150 213:1262 214:239 215:31 216:3708 217:1081
218:187 219:129 220:339 221:80 222:69
End of report
Routing Table Report 04:00 +10GMT Thu 27 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154596
Prefixes after maximum aggregation: 90329
Unique aggregates announced to Internet: 74092
Total ASes present in the Internet Routing Table: 18863
Origin-only ASes present in the Internet Routing Table: 16383
Origin ASes announcing only one prefix: 7690
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: 19
Prefixes from unregistered ASNs in the Routing Table: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1370386216
Equivalent to 81 /8s, 174 /16s and 111 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71898
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30717
Total APNIC prefixes after maximum aggregation: 14893
Prefixes being announced from the APNIC address blocks: 28755
Unique aggregates announced from the APNIC address blocks: 14591
APNIC Region origin ASes present in the Internet Routing Table: 2190
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: 172153984
Equivalent to 10 /8s, 66 /16s and 220 /24s
Percentage of available APNIC address space announced: 78.6
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: 86642
Total ARIN prefixes after maximum aggregation: 52185
Prefixes being announced from the ARIN address blocks: 66004
Unique aggregates announced from the ARIN address blocks: 23972
ARIN Region origin ASes present in the Internet Routing Table: 9823
ARIN Region origin ASes announcing only one prefix: 3557
ARIN Region transit ASes present in the Internet Routing Table: 964
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 239883264
Equivalent to 14 /8s, 76 /16s and 84 /24s
Percentage of available ARIN address space announced: 71.5
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: 29095
Total RIPE prefixes after maximum aggregation: 20167
Prefixes being announced from the RIPE address blocks: 26067
Unique aggregates announced from the RIPE address blocks: 17213
RIPE Region origin ASes present in the Internet Routing Table: 6263
RIPE Region origin ASes announcing only one prefix: 3338
RIPE Region transit ASes present in the Internet Routing Table: 1060
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 186900800
Equivalent to 11 /8s, 35 /16s and 225 /24s
Percentage of available RIPE address space announced: 65.5
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: 6809
Total LACNIC prefixes after maximum aggregation: 2384
Prefixes being announced from the LACNIC address blocks: 6691
Unique aggregates announced from the LACNIC address blocks: 4029
LACNIC Region origin ASes present in the Internet Routing Table: 416
LACNIC Region origin ASes announcing only one prefix: 123
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17308160
Equivalent to 1 /8s, 8 /16s and 26 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1327
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 875
Unique aggregates announced from the AfriNIC address blocks: 691
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2107648
Equivalent to 0 /8s, 32 /16s and 41 /24s
Percentage of available AfriNIC address space announced: 12.6
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 885 4608 173 Data Communications Bureau
1221 783 1184 561 Telstra Pty Ltd
4766 584 3415 279 Korea Internet Exchange for "
9583 575 48 11 Satyam Infoway Ltd.,
4755 458 178 101 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 353 1856 326 SINET Japan
9929 352 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 278 86 66 TPG Internet Pty Ltd
2764 274 255 221 connect.com.au pty ltd
7474 274 268 204 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 233 172 128 CHINANET core WAN North
4802 231 28 140 Wantree Development
9498 230 81 52 BHARTI BT INTERNET LTD.
7563 224 48 158 Korea Internet Infrastructure
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1449 6589 974 AT&T WorldNet Services
721 1115 21755 308 DLA Systems Automation Center
701 1067 8336 915 UUNET Technologies, Inc.
1239 925 2880 616 Sprint
2386 849 511 602 AT&T Data Communications Serv
4323 835 672 218 Time Warner Telecom
6197 835 376 387 BellSouth Network Solutions,
18566 765 208 6 Covad Communications
209 666 3420 504 Qwest
3356 596 10867 441 Level 3 Communications, LLC
20115 567 472 303 Charter Communications
3561 560 2370 415 Cable & Wireless USA
852 525 1126 399 Telus Advanced Communications
6478 501 819 96 AT&T Worldnet Services
3602 491 120 93 Sprint Canada, Inc.
6198 460 548 187 BellSouth Network Solutions,
27364 460 44 19 Armstrong Cable Services
7132 452 8395 381 SBC Internet Services
22773 434 1085 19 Cox Communications, Inc. Atla
5668 431 87 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 621 2023 513 UUNET - Commercial IP service
3320 291 2992 227 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 278 466 267 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 210 119 191 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 166 19 23 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 160 165 80 AUCS Communications Services
719 159 322 105 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 139 217 122 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 140 69 ImpSat
8151 334 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 114 147 79 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 107 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
14420 86 6 41 ANDINATEL S.A.
6535 85 7 23 Chilesat Servicios Empresari
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 80 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 84 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1115 807 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 885 712 Data Communications Bureau
4323 835 617 Time Warner Telecom
9583 575 564 Satyam Infoway Ltd.,
6197 835 448 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 434 415 Cox Communications, Inc. Atla
5668 431 414 Century Telephone
6478 501 405 AT&T Worldnet Services
3602 491 398 Sprint Canada, Inc.
22909 423 358 Comcast Cable Corporation
4755 458 357 Videsh Sanchar Nigam Ltd. Aut
7015 374 352 AT&T Broadband
6467 367 336 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 352 317 China Netcom Corp.
1239 925 309 Sprint
4766 584 305 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:575 /16:8275 /17:2379 /18:4067
/19:10044 /20:10549 /21:8346 /22:11611 /23:12922 /24:84313
/25:297 /26:263 /27:126 /28:63 /29:32 /30:127
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 683 835 BellSouth Network Solutions,
2386 622 849 AT&T Data Communications Serv
7018 614 1449 AT&T WorldNet Services
27364 445 460 Armstrong Cable Services
9583 402 575 Satyam Infoway Ltd.,
4766 399 584 Korea Internet Exchange for "
702 379 621 UUNET - Commercial IP service
5668 371 431 Century Telephone
1239 366 925 Sprint
7015 346 374 AT&T Broadband
6198 329 460 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
4323 281 835 Time Warner Telecom
6517 281 303 Yipes Communications, Inc.
6467 279 367 E.Spire Communications, Inc.
9929 277 352 China Netcom Corp.
701 266 1067 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1484 13:1 15:6 16:2
17:3 18:4 20:4 24:897 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:637 62:520
63:1834 64:2557 65:2077 66:2561 67:484 68:494
69:893 70:52 71:2 72:43 80:549 81:498
82:327 83:237 84:99 85:79 128:119 129:167
130:89 131:194 132:37 134:144 135:30 136:205
137:75 138:176 139:40 140:191 141:102 142:136
143:121 144:249 145:45 146:281 147:96 148:261
149:161 150:95 151:62 152:113 153:71 154:2
155:133 156:62 157:75 158:149 159:164 160:67
161:61 162:412 163:84 164:211 165:157 166:128
167:224 168:380 169:131 170:316 171:8 192:5649
193:3041 194:2244 195:1566 196:605 198:3824 199:3246
200:3945 201:43 202:5199 203:5933 204:3600 205:2042
206:2313 207:2645 208:2105 209:3080 210:1552 211:758
212:1141 213:1270 214:238 215:31 216:3705 217:1081
218:187 219:129 220:339 221:79 222:76
End of report
Routing Table Report 04:00 +10GMT Wed 26 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154609
Prefixes after maximum aggregation: 90263
Unique aggregates announced to Internet: 74181
Total ASes present in the Internet Routing Table: 18868
Origin-only ASes present in the Internet Routing Table: 16370
Origin ASes announcing only one prefix: 7704
Transit ASes present in the Internet Routing Table: 2498
Transit-only ASes present in the Internet Routing Table: 80
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: 6
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1369999912
Equivalent to 81 /8s, 168 /16s and 138 /24s
Percentage of available address space announced: 37.0
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71959
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30761
Total APNIC prefixes after maximum aggregation: 14893
Prefixes being announced from the APNIC address blocks: 28795
Unique aggregates announced from the APNIC address blocks: 14583
APNIC Region origin ASes present in the Internet Routing Table: 2192
APNIC Region origin ASes announcing only one prefix: 654
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: 172099456
Equivalent to 10 /8s, 66 /16s and 7 /24s
Percentage of available APNIC address space announced: 78.5
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: 86588
Total ARIN prefixes after maximum aggregation: 52124
Prefixes being announced from the ARIN address blocks: 65946
Unique aggregates announced from the ARIN address blocks: 24070
ARIN Region origin ASes present in the Internet Routing Table: 9825
ARIN Region origin ASes announcing only one prefix: 3560
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: 239663360
Equivalent to 14 /8s, 72 /16s and 249 /24s
Percentage of available ARIN address space announced: 71.4
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: 29121
Total RIPE prefixes after maximum aggregation: 20164
Prefixes being announced from the RIPE address blocks: 26082
Unique aggregates announced from the RIPE address blocks: 17250
RIPE Region origin ASes present in the Internet Routing Table: 6264
RIPE Region origin ASes announcing only one prefix: 3343
RIPE Region transit ASes present in the Internet Routing Table: 1067
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 186746944
Equivalent to 11 /8s, 33 /16s and 136 /24s
Percentage of available RIPE address space announced: 65.5
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: 6817
Total LACNIC prefixes after maximum aggregation: 2382
Prefixes being announced from the LACNIC address blocks: 6688
Unique aggregates announced from the LACNIC address blocks: 3994
LACNIC Region origin ASes present in the Internet Routing Table: 414
LACNIC Region origin ASes announcing only one prefix: 121
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17305600
Equivalent to 1 /8s, 8 /16s and 16 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1316
Total AfriNIC prefixes after maximum aggregation: 700
Prefixes being announced from the AfriNIC address blocks: 866
Unique aggregates announced from the AfriNIC address blocks: 687
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 26
AfriNIC Region transit ASes present in the Internet Routing Table: 14
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2106624
Equivalent to 0 /8s, 32 /16s and 37 /24s
Percentage of available AfriNIC address space announced: 12.6
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 882 4608 172 Data Communications Bureau
1221 782 1183 560 Telstra Pty Ltd
4766 584 3415 278 Korea Internet Exchange for "
9583 576 48 11 Satyam Infoway Ltd.,
4755 456 178 100 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 354 1856 327 SINET Japan
9929 352 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 279 86 67 TPG Internet Pty Ltd
2764 274 255 221 connect.com.au pty ltd
7474 274 268 204 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 235 172 129 CHINANET core WAN North
4802 231 28 140 Wantree Development
9498 229 81 52 BHARTI BT INTERNET LTD.
17974 228 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1441 6586 969 AT&T WorldNet Services
721 1108 21739 307 DLA Systems Automation Center
701 1066 8336 914 UUNET Technologies, Inc.
1239 924 2880 615 Sprint
2386 849 523 601 AT&T Data Communications Serv
6197 835 376 388 BellSouth Network Solutions,
4323 834 672 218 Time Warner Telecom
18566 765 208 6 Covad Communications
209 670 3420 505 Qwest
3356 596 10867 441 Level 3 Communications, LLC
20115 567 472 303 Charter Communications
3561 560 2370 415 Cable & Wireless USA
852 525 1126 399 Telus Advanced Communications
6478 501 819 96 AT&T Worldnet Services
3602 488 120 93 Sprint Canada, Inc.
6198 460 548 187 BellSouth Network Solutions,
27364 460 44 19 Armstrong Cable Services
7132 452 8395 381 SBC Internet Services
22773 433 1085 19 Cox Communications, Inc. Atla
5668 430 87 17 Century Telephone
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 620 2023 512 UUNET - Commercial IP service
3320 293 2992 228 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 279 466 268 COLT Internet - International
680 253 2041 239 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 210 119 191 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 165 19 22 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 161 165 81 AUCS Communications Services
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 139 217 122 BT Ignite European Backbone
3303 130 577 125 Swisscom Ltd
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 357 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 158 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 115 147 81 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 106 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
14420 85 6 40 ANDINATEL S.A.
10481 83 32 7 Prima S.A.
5639 81 8 8 Telecommunications Services o
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 83 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 56 34 6 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1108 801 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 882 710 Data Communications Bureau
4323 834 616 Time Warner Telecom
9583 576 565 Satyam Infoway Ltd.,
6197 835 447 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 433 414 Cox Communications, Inc. Atla
5668 430 413 Century Telephone
6478 501 405 AT&T Worldnet Services
3602 488 395 Sprint Canada, Inc.
4755 456 356 Videsh Sanchar Nigam Ltd. Aut
22909 419 354 Comcast Cable Corporation
6467 369 338 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 352 317 China Netcom Corp.
1239 924 309 Sprint
4766 584 306 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
6140 357 288 ImpSat
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
64513 PRIVATE 149.117.96.0/24 577 Bell Advanced Commun
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /11:14 /12:61
/13:143 /14:314 /15:575 /16:8271 /17:2381 /18:4064
/19:10035 /20:10540 /21:8324 /22:11628 /23:12897 /24:84372
/25:298 /26:266 /27:127 /28:63 /29:34 /30:127
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 683 835 BellSouth Network Solutions,
2386 622 849 AT&T Data Communications Serv
7018 608 1441 AT&T WorldNet Services
27364 445 460 Armstrong Cable Services
9583 403 576 Satyam Infoway Ltd.,
4766 399 584 Korea Internet Exchange for "
702 378 620 UUNET - Commercial IP service
5668 370 430 Century Telephone
1239 366 924 Sprint
6198 329 460 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
6517 284 307 Yipes Communications, Inc.
4323 281 834 Time Warner Telecom
6467 280 369 E.Spire Communications, Inc.
9929 277 352 China Netcom Corp.
701 266 1066 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
7015 257 281 AT&T Broadband
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1483 13:1 15:6 16:2
17:3 18:4 20:4 24:853 32:68 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:676 62:520
63:1839 64:2550 65:2076 66:2552 67:485 68:495
69:887 70:52 71:2 72:41 80:549 81:499
82:359 83:229 84:99 85:81 128:126 129:167
130:89 131:194 132:37 134:144 135:30 136:206
137:77 138:162 139:40 140:210 141:102 142:136
143:120 144:252 145:45 146:281 147:96 148:261
149:161 150:95 151:62 152:113 153:71 154:2
155:133 156:70 157:75 158:149 159:164 160:67
161:61 162:411 163:84 164:212 165:157 166:128
167:224 168:380 169:131 170:316 171:8 192:5648
193:3036 194:2250 195:1561 196:596 198:3856 199:3248
200:3941 201:43 202:5189 203:5929 204:3606 205:2035
206:2306 207:2660 208:2100 209:3097 210:1552 211:764
212:1146 213:1265 214:238 215:31 216:3713 217:1081
218:185 219:127 220:338 221:80 222:76
End of report
Routing Table Report 04:00 +10GMT Tue 25 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 154387
Prefixes after maximum aggregation: 90253
Unique aggregates announced to Internet: 74107
Total ASes present in the Internet Routing Table: 18854
Origin-only ASes present in the Internet Routing Table: 16369
Origin ASes announcing only one prefix: 7684
Transit ASes present in the Internet Routing Table: 2485
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: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1368791848
Equivalent to 81 /8s, 150 /16s and 27 /24s
Percentage of available address space announced: 36.9
Percentage of allocated address space announced: 59.7
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71897
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30639
Total APNIC prefixes after maximum aggregation: 14877
Prefixes being announced from the APNIC address blocks: 28678
Unique aggregates announced from the APNIC address blocks: 14591
APNIC Region origin ASes present in the Internet Routing Table: 2190
APNIC Region origin ASes announcing only one prefix: 649
APNIC Region transit ASes present in the Internet Routing Table: 329
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 171967616
Equivalent to 10 /8s, 64 /16s and 4 /24s
Percentage of available APNIC address space announced: 78.5
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: 86352
Total ARIN prefixes after maximum aggregation: 52142
Prefixes being announced from the ARIN address blocks: 65718
Unique aggregates announced from the ARIN address blocks: 24066
ARIN Region origin ASes present in the Internet Routing Table: 9825
ARIN Region origin ASes announcing only one prefix: 3553
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: 239526656
Equivalent to 14 /8s, 70 /16s and 227 /24s
Percentage of available ARIN address space announced: 71.4
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: 29259
Total RIPE prefixes after maximum aggregation: 20151
Prefixes being announced from the RIPE address blocks: 26229
Unique aggregates announced from the RIPE address blocks: 17187
RIPE Region origin ASes present in the Internet Routing Table: 6254
RIPE Region origin ASes announcing only one prefix: 3338
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: 185831744
Equivalent to 11 /8s, 19 /16s and 145 /24s
Percentage of available RIPE address space announced: 65.2
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: 6812
Total LACNIC prefixes after maximum aggregation: 2381
Prefixes being announced from the LACNIC address blocks: 6682
Unique aggregates announced from the LACNIC address blocks: 3990
LACNIC Region origin ASes present in the Internet Routing Table: 413
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 81
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17302016
Equivalent to 1 /8s, 8 /16s and 2 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1320
Total AfriNIC prefixes after maximum aggregation: 702
Prefixes being announced from the AfriNIC address blocks: 864
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
AfriNIC Region transit ASes present in the Internet Routing Table: 13
Average AfriNIC Region AS path length visible: 4.6
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2106112
Equivalent to 0 /8s, 32 /16s and 35 /24s
Percentage of available AfriNIC address space announced: 12.6
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 886 4608 173 Data Communications Bureau
1221 783 1184 561 Telstra Pty Ltd
4766 582 3415 278 Korea Internet Exchange for "
9583 575 48 11 Satyam Infoway Ltd.,
4755 454 177 96 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 354 1856 327 SINET Japan
9929 352 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 278 86 66 TPG Internet Pty Ltd
2764 274 255 221 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 234 172 128 CHINANET core WAN North
4802 231 28 140 Wantree Development
9498 230 81 52 BHARTI BT INTERNET LTD.
7563 223 48 155 Korea Internet Infrastructure
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1440 6586 968 AT&T WorldNet Services
721 1101 21738 306 DLA Systems Automation Center
701 1066 8333 914 UUNET Technologies, Inc.
1239 924 2880 615 Sprint
2386 849 523 601 AT&T Data Communications Serv
6197 835 378 391 BellSouth Network Solutions,
4323 834 672 218 Time Warner Telecom
18566 765 208 6 Covad Communications
209 671 3420 506 Qwest
3356 594 10867 440 Level 3 Communications, LLC
20115 566 470 302 Charter Communications
3561 560 2370 415 Cable & Wireless USA
852 525 1126 399 Telus Advanced Communications
6478 486 818 100 AT&T Worldnet Services
27364 460 44 19 Armstrong Cable Services
6198 459 547 186 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 431 1085 19 Cox Communications, Inc. Atla
5668 429 87 17 Century Telephone
22909 419 916 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 620 2023 512 UUNET - Commercial IP service
3320 294 2992 228 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 280 466 268 COLT Internet - International
21502 276 40 3 NUMERICABLE is a cabled netwo
680 253 2041 239 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 209 119 190 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 175 1778 175 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 165 19 22 Bulgarian Telecommunication C
3269 161 1392 71 TELECOM ITALIA
3300 160 165 80 AUCS Communications Services
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 138 217 122 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 356 140 69 ImpSat
8151 334 488 141 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 160 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 117 147 81 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 106 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
14420 85 6 40 ANDINATEL S.A.
10481 82 32 7 Prima S.A.
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 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
20928 80 16 2 Noor Advanced Technologies AS
2905 77 272 70 The Internetworking Company o
24835 55 34 7 RAYA Telecom - Egypt
8452 46 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 2 3 Swift Global Kenya Ltd.Is an
15706 15 4 2 Sudatel Internet Exchange Aut
21491 15 1 3 UTL On-line is RF broadband I
8346 14 7 14 SONATEL-AS Autonomous System
15808 13 1 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1101 795 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 886 713 Data Communications Bureau
4323 834 616 Time Warner Telecom
9583 575 564 Satyam Infoway Ltd.,
6197 835 444 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
22773 431 412 Cox Communications, Inc. Atla
5668 429 412 Century Telephone
6478 486 386 AT&T Worldnet Services
4755 454 358 Videsh Sanchar Nigam Ltd. Aut
22909 419 354 Comcast Cable Corporation
6467 372 341 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 352 317 China Netcom Corp.
1239 924 309 Sprint
4766 582 304 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
6140 356 287 ImpSat
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /12:60
/13:143 /14:314 /15:575 /16:8270 /17:2376 /18:4067
/19:10009 /20:10517 /21:8309 /22:11535 /23:12872 /24:84343
/25:296 /26:259 /27:128 /28:63 /29:34 /30:127
/31:0 /32:46
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 681 835 BellSouth Network Solutions,
2386 622 849 AT&T Data Communications Serv
7018 609 1440 AT&T WorldNet Services
27364 445 460 Armstrong Cable Services
9583 402 575 Satyam Infoway Ltd.,
4766 397 582 Korea Internet Exchange for "
702 378 620 UUNET - Commercial IP service
5668 370 429 Century Telephone
1239 366 924 Sprint
6198 328 459 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
6517 284 307 Yipes Communications, Inc.
6467 283 372 E.Spire Communications, Inc.
4323 281 834 Time Warner Telecom
9929 277 352 China Netcom Corp.
21502 273 276 NUMERICABLE is a cabled netwo
701 266 1066 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:9 12:1479 13:1 15:6 16:2
17:3 18:4 20:4 24:829 32:69 33:3
38:90 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:635 62:519
63:1838 64:2550 65:2077 66:2543 67:484 68:493
69:867 70:52 71:2 72:41 80:552 81:667
82:397 83:229 84:90 85:80 128:124 129:167
130:89 131:193 132:36 134:144 135:30 136:209
137:77 138:162 139:40 140:210 141:102 142:136
143:121 144:249 145:45 146:281 147:91 148:261
149:160 150:93 151:62 152:113 153:71 154:2
155:133 156:69 157:75 158:149 159:166 160:67
161:59 162:411 163:84 164:212 165:157 166:128
167:224 168:379 169:131 170:317 171:8 192:5649
193:3044 194:2246 195:1564 196:594 198:3851 199:3254
200:3940 201:43 202:5169 203:5937 204:3575 205:2035
206:2277 207:2628 208:2104 209:3077 210:1548 211:763
212:1148 213:1271 214:238 215:31 216:3712 217:1081
218:186 219:131 220:338 221:80 222:68
End of report
Routing Table Report 04:00 +10GMT Mon 24 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 152683
Prefixes after maximum aggregation: 89704
Unique aggregates announced to Internet: 73928
Total ASes present in the Internet Routing Table: 18782
Origin-only ASes present in the Internet Routing Table: 16331
Origin ASes announcing only one prefix: 7671
Transit ASes present in the Internet Routing Table: 2451
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: 19
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1367730848
Equivalent to 81 /8s, 133 /16s and 234 /24s
Percentage of available address space announced: 36.9
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71122
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30398
Total APNIC prefixes after maximum aggregation: 14811
Prefixes being announced from the APNIC address blocks: 28468
Unique aggregates announced from the APNIC address blocks: 14555
APNIC Region origin ASes present in the Internet Routing Table: 2183
APNIC Region origin ASes announcing only one prefix: 646
APNIC Region transit ASes present in the Internet Routing Table: 323
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 171810944
Equivalent to 10 /8s, 61 /16s and 160 /24s
Percentage of available APNIC address space announced: 78.4
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: 85058
Total ARIN prefixes after maximum aggregation: 51724
Prefixes being announced from the ARIN address blocks: 64959
Unique aggregates announced from the ARIN address blocks: 24007
ARIN Region origin ASes present in the Internet Routing Table: 9776
ARIN Region origin ASes announcing only one prefix: 3543
ARIN Region transit ASes present in the Internet Routing Table: 944
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 239427072
Equivalent to 14 /8s, 69 /16s and 94 /24s
Percentage of available ARIN address space announced: 71.4
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: 29172
Total RIPE prefixes after maximum aggregation: 20126
Prefixes being announced from the RIPE address blocks: 26156
Unique aggregates announced from the RIPE address blocks: 17141
RIPE Region origin ASes present in the Internet Routing Table: 6245
RIPE Region origin ASes announcing only one prefix: 3339
RIPE Region transit ASes present in the Internet Routing Table: 1060
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 185593472
Equivalent to 11 /8s, 15 /16s and 238 /24s
Percentage of available RIPE address space announced: 65.1
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: 6737
Total LACNIC prefixes after maximum aggregation: 2347
Prefixes being announced from the LACNIC address blocks: 6655
Unique aggregates announced from the LACNIC address blocks: 3982
LACNIC Region origin ASes present in the Internet Routing Table: 408
LACNIC Region origin ASes announcing only one prefix: 119
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17300736
Equivalent to 1 /8s, 7 /16s and 253 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1313
Total AfriNIC prefixes after maximum aggregation: 696
Prefixes being announced from the AfriNIC address blocks: 865
Unique aggregates announced from the AfriNIC address blocks: 687
AfriNIC Region origin ASes present in the Internet Routing Table: 96
AfriNIC Region origin ASes announcing only one prefix: 24
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: 2105856
Equivalent to 0 /8s, 32 /16s and 34 /24s
Percentage of available AfriNIC address space announced: 12.6
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 881 4596 171 Data Communications Bureau
1221 783 1183 560 Telstra Pty Ltd
4766 579 3415 278 Korea Internet Exchange for "
9583 575 48 11 Satyam Infoway Ltd.,
4755 455 177 96 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 352 1855 325 SINET Japan
9929 352 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 279 86 67 TPG Internet Pty Ltd
2764 276 255 223 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 238 383 76 CHINA UNICOM
4808 234 172 128 CHINANET core WAN North
4802 230 28 139 Wantree Development
9498 230 81 51 BHARTI BT INTERNET LTD.
17488 213 14 9 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1440 6586 968 AT&T WorldNet Services
721 1098 21721 306 DLA Systems Automation Center
701 1065 8332 913 UUNET Technologies, Inc.
1239 924 2880 615 Sprint
2386 847 523 600 AT&T Data Communications Serv
4323 834 672 218 Time Warner Telecom
6197 834 378 391 BellSouth Network Solutions,
18566 765 208 6 Covad Communications
209 669 3436 506 Qwest
3356 597 10867 441 Level 3 Communications, LLC
20115 566 470 302 Charter Communications
3561 561 2370 416 Cable & Wireless USA
852 521 1110 398 Telus Advanced Communications
6478 486 818 100 AT&T Worldnet Services
27364 460 44 19 Armstrong Cable Services
6198 459 547 186 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 430 1085 19 Cox Communications, Inc. Atla
5668 429 87 17 Century Telephone
22909 418 915 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 620 2022 512 UUNET - Commercial IP service
3320 294 2992 228 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 279 466 267 COLT Internet - International
21502 276 40 3 NUMERICABLE is a cabled netwo
680 253 2041 239 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 119 188 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 187 842 135 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 165 19 22 Bulgarian Telecommunication C
3300 160 165 80 AUCS Communications Services
3269 159 1360 70 TELECOM ITALIA
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 137 217 121 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 377 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 159 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 116 147 81 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 106 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
14420 85 6 40 ANDINATEL S.A.
10481 82 32 7 Prima S.A.
4270 79 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 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 95 297 93 Tertiary Education Network
2905 77 272 70 The Internetworking Company o
20928 77 16 2 Noor Advanced Technologies AS
24835 55 34 7 RAYA Telecom - Egypt
8452 47 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 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 15 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 1098 792 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 881 710 Data Communications Bureau
4323 834 616 Time Warner Telecom
9583 575 564 Satyam Infoway Ltd.,
6197 834 443 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
5668 429 412 Century Telephone
22773 430 411 Cox Communications, Inc. Atla
6478 486 386 AT&T Worldnet Services
4755 455 359 Videsh Sanchar Nigam Ltd. Aut
22909 418 353 Comcast Cable Corporation
6467 372 341 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 352 317 China Netcom Corp.
1239 924 309 Sprint
6140 377 308 ImpSat
4766 579 301 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /12:60
/13:142 /14:313 /15:574 /16:8221 /17:2365 /18:4059
/19:9975 /20:10471 /21:8224 /22:11410 /23:12792 /24:83389
/25:250 /26:217 /27:88 /28:34 /29:9 /30:26
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 680 834 BellSouth Network Solutions,
2386 620 847 AT&T Data Communications Serv
7018 609 1440 AT&T WorldNet Services
27364 445 460 Armstrong Cable Services
9583 402 575 Satyam Infoway Ltd.,
4766 396 579 Korea Internet Exchange for "
702 379 620 UUNET - Commercial IP service
5668 370 429 Century Telephone
1239 366 924 Sprint
6198 328 459 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
6517 284 307 Yipes Communications, Inc.
6467 283 372 E.Spire Communications, Inc.
4323 281 834 Time Warner Telecom
9929 277 352 China Netcom Corp.
21502 273 276 NUMERICABLE is a cabled netwo
701 265 1065 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1478 13:1 15:6 16:2
17:3 18:4 20:4 24:832 32:69 33:3
38:87 40:53 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:667 62:519
63:1840 64:2548 65:2071 66:2542 67:483 68:493
69:878 70:52 71:2 72:42 80:547 81:664
82:388 83:229 84:89 85:80 128:120 129:162
130:54 131:190 132:35 134:122 135:30 136:209
137:76 138:105 139:38 140:209 141:101 142:125
143:121 144:247 145:45 146:271 147:91 148:245
149:160 150:93 151:62 152:111 153:71 154:2
155:130 156:62 157:67 158:149 159:163 160:62
161:57 162:409 163:77 164:212 165:152 166:128
167:220 168:373 169:128 170:322 171:8 192:5565
193:3045 194:2233 195:1563 196:596 198:3727 199:3227
200:3923 201:43 202:5079 203:5916 204:3510 205:2004
206:2162 207:2541 208:2104 209:3054 210:1539 211:744
212:1145 213:1271 214:236 215:31 216:3707 217:1072
218:186 219:131 220:338 221:80 222:65
End of report
Routing Table Report 04:00 +10GMT Sun 23 Jan, 2005
Analysis Summary
----------------
BGP routing table entries examined: 152667
Prefixes after maximum aggregation: 89683
Unique aggregates announced to Internet: 73976
Total ASes present in the Internet Routing Table: 18766
Origin-only ASes present in the Internet Routing Table: 16318
Origin ASes announcing only one prefix: 7656
Transit ASes present in the Internet Routing Table: 2448
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: 19
Prefixes from unregistered ASNs in the Routing Table: 5
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 19
Number of addresses announced to Internet: 1368050336
Equivalent to 81 /8s, 138 /16s and 202 /24s
Percentage of available address space announced: 36.9
Percentage of allocated address space announced: 59.6
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71129
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30348
Total APNIC prefixes after maximum aggregation: 14773
Prefixes being announced from the APNIC address blocks: 28434
Unique aggregates announced from the APNIC address blocks: 14580
APNIC Region origin ASes present in the Internet Routing Table: 2174
APNIC Region origin ASes announcing only one prefix: 640
APNIC Region transit ASes present in the Internet Routing Table: 322
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 171799424
Equivalent to 10 /8s, 61 /16s and 115 /24s
Percentage of available APNIC address space announced: 78.4
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: 85062
Total ARIN prefixes after maximum aggregation: 51735
Prefixes being announced from the ARIN address blocks: 64958
Unique aggregates announced from the ARIN address blocks: 24009
ARIN Region origin ASes present in the Internet Routing Table: 9771
ARIN Region origin ASes announcing only one prefix: 3536
ARIN Region transit ASes present in the Internet Routing Table: 943
Average ARIN Region AS path length visible: 4.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 239429888
Equivalent to 14 /8s, 69 /16s and 105 /24s
Percentage of available ARIN address space announced: 71.4
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: 29201
Total RIPE prefixes after maximum aggregation: 20129
Prefixes being announced from the RIPE address blocks: 26176
Unique aggregates announced from the RIPE address blocks: 17154
RIPE Region origin ASes present in the Internet Routing Table: 6243
RIPE Region origin ASes announcing only one prefix: 3336
RIPE Region transit ASes present in the Internet Routing Table: 1058
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 19
Number of RIPE addresses announced to Internet: 185595520
Equivalent to 11 /8s, 15 /16s and 246 /24s
Percentage of available RIPE address space announced: 65.1
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: 6736
Total LACNIC prefixes after maximum aggregation: 2352
Prefixes being announced from the LACNIC address blocks: 6652
Unique aggregates announced from the LACNIC address blocks: 3979
LACNIC Region origin ASes present in the Internet Routing Table: 409
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 78
Average LACNIC Region AS path length visible: 4.9
Max LACNIC Region AS path length visible: 16
Number of LACNIC addresses announced to Internet: 17299968
Equivalent to 1 /8s, 7 /16s and 250 /24s
Percentage of available LACNIC address space announced: 51.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1315
Total AfriNIC prefixes after maximum aggregation: 694
Prefixes being announced from the AfriNIC address blocks: 865
Unique aggregates announced from the AfriNIC address blocks: 685
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 24
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: 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 881 4596 171 Data Communications Bureau
1221 783 1183 558 Telstra Pty Ltd
4766 579 3415 278 Korea Internet Exchange for "
9583 575 48 11 Satyam Infoway Ltd.,
4755 457 177 96 Videsh Sanchar Nigam Ltd. Aut
17676 393 5900 61 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 354 1856 327 SINET Japan
9929 351 164 35 China Netcom Corp.
703 325 344 255 UUNET
17557 304 22 149 Pakistan Telecom
10036 294 27 270 C&M Communication Co. Ltd.
7545 278 86 67 TPG Internet Pty Ltd
2764 276 255 223 connect.com.au pty ltd
7474 273 268 203 Optus Communications Pty Ltd
9800 237 383 75 CHINA UNICOM
4808 234 172 128 CHINANET core WAN North
9498 231 81 52 BHARTI BT INTERNET LTD.
4802 230 28 139 Wantree Development
17488 213 14 9 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1440 6586 968 AT&T WorldNet Services
721 1100 21737 306 DLA Systems Automation Center
701 1062 8333 911 UUNET Technologies, Inc.
1239 925 2880 616 Sprint
2386 849 523 601 AT&T Data Communications Serv
6197 833 378 391 BellSouth Network Solutions,
4323 831 671 216 Time Warner Telecom
18566 765 208 6 Covad Communications
209 671 3438 509 Qwest
3356 597 10867 441 Level 3 Communications, LLC
20115 566 470 302 Charter Communications
3561 558 2370 416 Cable & Wireless USA
852 524 1126 399 Telus Advanced Communications
6478 486 818 100 AT&T Worldnet Services
27364 460 44 19 Armstrong Cable Services
6198 459 547 186 BellSouth Network Solutions,
7132 452 8395 381 SBC Internet Services
22773 430 1085 19 Cox Communications, Inc. Atla
5668 429 87 17 Century Telephone
22909 418 915 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 620 2022 512 UUNET - Commercial IP service
3320 294 2992 228 Deutsche Telekom AG
3301 287 1112 275 TeliaNet Sweden
8220 279 466 267 COLT Internet - International
21502 276 40 3 NUMERICABLE is a cabled netwo
680 253 2041 239 DFN-IP service G-WiN
3246 226 487 221 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 119 188 Romania Data Systems S.A.
1257 205 708 171 SWIPnet Swedish IP Network
5515 191 842 138 Sonera Solution Autonomous Sy
3215 186 1022 79 France Telecom Transpac
786 176 1794 176 The JANET IP Service
6746 175 47 140 Dynamic Network Technologies,
8866 165 19 22 Bulgarian Telecommunication C
3300 160 165 80 AUCS Communications Services
3269 159 1360 70 TELECOM ITALIA
719 158 322 104 LANLINK autonomous system
25186 142 138 100 France Telecom Transpac's Tra
5400 137 217 121 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 377 140 69 ImpSat
8151 335 489 142 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 216 99 54 Servicios Alestra S.A de C.V
6147 189 102 20 Telefonica Del Peru
11664 159 19 24 Keytech SA
7303 149 68 22 Telecom Argentina Stet-France
6505 136 90 92 Global One Communicaoes Ltda
6503 123 147 82 AVANTEL, S.A.
14117 114 7 5 Telefonica del Sur S.A.
11992 106 9 31 Integrated Systems
11556 97 48 3 Cable-Wireless Panama
13999 89 52 9 Mega Cable S.A. de C.V.
11311 86 8 22 Sinectis S.A.
6535 85 7 23 Chilesat Servicios Empresari
14420 85 6 40 ANDINATEL S.A.
10481 82 32 7 Prima S.A.
4270 79 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 268 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 95 297 93 Tertiary Education Network
2905 77 272 70 The Internetworking Company o
20928 77 16 2 Noor Advanced Technologies AS
24835 55 34 7 RAYA Telecom - Egypt
8452 47 20 5 TEDATA
6713 34 38 9 Itissalat Al-MAGHRIB
9129 33 3 2 UUNET Kenya
12455 28 7 4 Jambonet Autonomous system
5713 27 141 24 Telkom SA Ltd
8524 23 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 18 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 15 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 1100 794 DLA Systems Automation Center
18566 765 759 Covad Communications
4134 881 710 Data Communications Bureau
4323 831 615 Time Warner Telecom
9583 575 564 Satyam Infoway Ltd.,
6197 833 442 BellSouth Network Solutions,
27364 460 441 Armstrong Cable Services
5668 429 412 Century Telephone
22773 430 411 Cox Communications, Inc. Atla
6478 486 386 AT&T Worldnet Services
4755 457 361 Videsh Sanchar Nigam Ltd. Aut
22909 418 353 Comcast Cable Corporation
6467 372 341 E.Spire Communications, Inc.
17676 393 332 XTAGE CORPORATION
9929 351 316 China Netcom Corp.
1239 925 309 Sprint
6140 377 308 ImpSat
4766 579 301 Korea Internet Exchange for "
13609 334 299 Choice One Communications Inc
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
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
172.212.0.0/16 1668 GNN Hosting Service
172.213.0.0/16 1668 GNN Hosting Service
172.214.0.0/16 1668 GNN Hosting Service
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 /12:60
/13:142 /14:313 /15:574 /16:8226 /17:2365 /18:4061
/19:9965 /20:10470 /21:8215 /22:11413 /23:12782 /24:83393
/25:249 /26:217 /27:90 /28:33 /29:9 /30:26
/31:0 /32:20
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 750 765 Covad Communications
6197 679 833 BellSouth Network Solutions,
2386 622 849 AT&T Data Communications Serv
7018 609 1440 AT&T WorldNet Services
27364 445 460 Armstrong Cable Services
9583 402 575 Satyam Infoway Ltd.,
4766 396 579 Korea Internet Exchange for "
702 379 620 UUNET - Commercial IP service
5668 370 429 Century Telephone
1239 366 925 Sprint
6198 328 459 BellSouth Network Solutions,
10036 294 294 C&M Communication Co. Ltd.
13609 291 334 Choice One Communications Inc
6467 283 372 E.Spire Communications, Inc.
6517 283 306 Yipes Communications, Inc.
4323 280 831 Time Warner Telecom
9929 276 351 China Netcom Corp.
21502 273 276 NUMERICABLE is a cabled netwo
701 267 1062 UUNET Technologies, Inc.
11456 263 308 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:8 12:1477 13:1 15:6 16:2
17:3 18:4 20:4 24:832 32:69 33:3
38:87 40:53 44:3 47:2 52:3 55:2
56:3 57:23 59:2 60:12 61:662 62:517
63:1848 64:2550 65:2064 66:2544 67:483 68:492
69:880 70:52 71:2 72:42 80:547 81:662
82:397 83:229 84:89 85:80 128:121 129:162
130:54 131:190 132:36 134:122 135:30 136:209
137:76 138:105 139:38 140:209 141:101 142:125
143:121 144:246 145:45 146:271 147:91 148:248
149:160 150:93 151:62 152:112 153:71 154:2
155:129 156:62 157:67 158:149 159:166 160:62
161:57 162:409 163:79 164:191 165:152 166:128
167:224 168:371 169:128 170:323 171:8 192:5571
193:3046 194:2240 195:1563 196:598 198:3731 199:3221
200:3919 201:43 202:5087 203:5892 204:3507 205:2001
206:2169 207:2542 208:2106 209:3050 210:1547 211:742
212:1148 213:1273 214:235 215:31 216:3703 217:1080
218:187 219:131 220:338 221:80 222:64
End of report
