Routing Table Report 04:00 +10GMT Sun 26 Dec, 2004
Analysis Summary
----------------
BGP routing table entries examined: 153379
Prefixes after maximum aggregation: 89895
Unique aggregates announced to Internet: 73417
Total ASes present in the Internet Routing Table: 18697
Origin-only ASes present in the Internet Routing Table: 16231
Origin ASes announcing only one prefix: 7603
Transit ASes present in the Internet Routing Table: 2466
Transit-only ASes present in the Internet Routing Table: 78
Average AS path length visible in the Internet Routing Table: 4.5
Max AS path length visible: 19
Prefixes from unregistered ASNs in the Routing Table: 8
Special use prefixes present in the Routing Table: 0
Prefixes being announced from unallocated address space: 16
Number of addresses announced to Internet: 1361399396
Equivalent to 81 /8s, 37 /16s and 78 /24s
Percentage of available address space announced: 36.7
Percentage of allocated address space announced: 59.4
Percentage of available address space allocated: 61.9
Total number of prefixes smaller than registry allocations: 71148
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 30067
Total APNIC prefixes after maximum aggregation: 14723
Prefixes being announced from the APNIC address blocks: 28120
Unique aggregates announced from the APNIC address blocks: 14481
APNIC Region origin ASes present in the Internet Routing Table: 2178
APNIC Region origin ASes announcing only one prefix: 647
APNIC Region transit ASes present in the Internet Routing Table: 326
Average APNIC Region AS path length visible: 4.4
Max APNIC Region AS path length visible: 15
Number of APNIC addresses announced to Internet: 169830912
Equivalent to 10 /8s, 31 /16s and 106 /24s
Percentage of available APNIC address space announced: 77.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
23552-24575
APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 86468
Total ARIN prefixes after maximum aggregation: 52145
Prefixes being announced from the ARIN address blocks: 66150
Unique aggregates announced from the ARIN address blocks: 23822
ARIN Region origin ASes present in the Internet Routing Table: 9783
ARIN Region origin ASes announcing only one prefix: 3521
ARIN Region transit ASes present in the Internet Routing Table: 963
Average ARIN Region AS path length visible: 4.3
Max ARIN Region AS path length visible: 19
Number of ARIN addresses announced to Internet: 237157632
Equivalent to 14 /8s, 34 /16s and 189 /24s
Percentage of available ARIN address space announced: 70.7
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106
2138-2584, 2615-2772, 2823-2829, 2880-3153
3354-4607, 4865-5119, 5632-6655, 6912-7466
7723-8191, 10240-12287, 13312-15359, 16384-17407
18432-20479, 21504-23551, 25600-26591,
26624-27647,29695-30719, 31744-33791
ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/7, 72/8, 198/7, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 28755
Total RIPE prefixes after maximum aggregation: 19932
Prefixes being announced from the RIPE address blocks: 25675
Unique aggregates announced from the RIPE address blocks: 16915
RIPE Region origin ASes present in the Internet Routing Table: 6155
RIPE Region origin ASes announcing only one prefix: 3293
RIPE Region transit ASes present in the Internet Routing Table: 1057
Average RIPE Region AS path length visible: 5.1
Max RIPE Region AS path length visible: 17
Number of RIPE addresses announced to Internet: 183520768
Equivalent to 10 /8s, 240 /16s and 78 /24s
Percentage of available RIPE address space announced: 64.3
RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614
2773-2822, 2830-2879, 3154-3353, 5377-5631
6656-6911, 8192-9215, 12288-13311, 15360-16383
20480-21503, 24576-25599, 28672-29695
30720-31743, 33792-34815
RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7
and 217/8
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 6799
Total LACNIC prefixes after maximum aggregation: 2391
Prefixes being announced from the LACNIC address blocks: 6655
Unique aggregates announced from the LACNIC address blocks: 4088
LACNIC Region origin ASes present in the Internet Routing Table: 410
LACNIC Region origin ASes announcing only one prefix: 120
LACNIC Region transit ASes present in the Internet Routing Table: 76
Average LACNIC Region AS path length visible: 5.0
Max LACNIC Region AS path length visible: 15
Number of LACNIC addresses announced to Internet: 16985344
Equivalent to 1 /8s, 3 /16s and 45 /24s
Percentage of available LACNIC address space announced: 50.6
LACNIC AS Blocks 26592-26623, 27648-28671
LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary
----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1283
Total AfriNIC prefixes after maximum aggregation: 704
Prefixes being announced from the AfriNIC address blocks: 860
Unique aggregates announced from the AfriNIC address blocks: 682
AfriNIC Region origin ASes present in the Internet Routing Table: 95
AfriNIC Region origin ASes announcing only one prefix: 22
AfriNIC Region transit ASes present in the Internet Routing Table: 12
Average AfriNIC Region AS path length visible: 4.5
Max AfriNIC Region AS path length visible: 12
Number of AfriNIC addresses announced to Internet: 2100224
Equivalent to 0 /8s, 32 /16s and 12 /24s
Percentage of available AfriNIC address space announced: 12.5
AfriNIC AS Blocks <none>
AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
4134 870 4465 167 Data Communications Bureau
1221 792 1184 566 Telstra Pty Ltd
9583 583 47 29 Satyam Infoway Ltd.,
4766 552 3409 270 Korea Internet Exchange for "
4755 438 176 91 Videsh Sanchar Nigam Ltd. Aut
17676 390 5852 60 XTAGE CORPORATION
9443 362 71 77 Primus Telecommunications
2907 355 1856 328 SINET Japan
9929 354 164 40 China Netcom Corp.
703 318 344 248 UUNET
17557 307 22 150 Pakistan Telecom
10036 290 26 266 C&M Communication Co. Ltd.
2764 285 272 228 connect.com.au pty ltd
7474 274 267 203 Optus Communications Pty Ltd
9800 234 381 73 CHINA UNICOM
9498 232 81 54 BHARTI BT INTERNET LTD.
4802 231 28 140 Wantree Development
7563 225 48 164 Korea Internet Infrastructure
4814 223 232 6 China Telecom (Group)
17974 220 63 14 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
7018 1421 6571 981 AT&T WorldNet Services
701 1099 8357 896 UUNET Technologies, Inc.
721 1074 21840 299 DLA Systems Automation Center
1239 935 2882 625 Sprint
2386 857 528 610 AT&T Data Communications Serv
6197 823 384 354 BellSouth Network Solutions,
4323 820 670 223 Time Warner Telecom
18566 756 208 6 Covad Communications
209 654 3405 502 Qwest
3356 615 10889 450 Level 3 Communications, LLC
20115 574 467 301 Charter Communications
3561 549 2369 416 Cable & Wireless USA
852 528 1126 401 Telus Advanced Communications
7843 482 729 100 Adelphia Corp.
6478 467 814 97 AT&T Worldnet Services
6198 450 388 200 BellSouth Network Solutions,
7132 449 8290 382 SBC Internet Services
27364 442 44 20 Armstrong Cable Services
5668 424 87 18 Century Telephone
22909 419 907 65 Comcast Cable Corporation
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv MaxAgg Description
702 627 2023 518 UUNET - Commercial IP service
3320 296 2992 233 Deutsche Telekom AG
3301 286 1112 274 TeliaNet Sweden
8220 277 464 265 COLT Internet - International
21502 272 40 3 NUMERICABLE is a cabled netwo
680 251 2025 239 DFN-IP service G-WiN
3246 222 481 218 Song Networks
13083 217 51 8 Mannesmann Datenverarbeitung
8708 207 118 191 Romania Data Systems S.A.
1257 203 708 169 SWIPnet Swedish IP Network
5515 193 842 140 Sonera Solution Autonomous Sy
786 176 1794 176 The JANET IP Service
3215 176 998 76 France Telecom Transpac
6746 168 47 136 Dynamic Network Technologies,
8866 162 18 21 Bulgarian Telecommunication C
719 159 322 104 LANLINK autonomous system
3269 159 1362 70 TELECOM ITALIA
3300 153 165 77 AUCS Communications Services
25186 143 138 99 France Telecom Transpac's Tra
5400 135 216 118 BT Ignite European Backbone
LACNIC Region per AS prefix count summary
-----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
6140 351 140 68 ImpSat
8151 319 472 140 UniNet S.A. de C.V.
16814 234 14 6 NSS, S.A.
11172 217 99 55 Servicios Alestra S.A de C.V
6147 184 94 20 Telefonica Del Peru
11664 171 14 24 Keytech SA
7303 160 68 20 Telecom Argentina Stet-France
6505 140 90 96 Global One Communicaoes Ltda
6503 128 148 85 AVANTEL, S.A.
11992 102 9 31 Integrated Systems
14117 98 6 4 Telefonica del Sur S.A.
11556 97 48 3 Cable-Wireless Panama
14420 87 6 42 ANDINATEL S.A.
11311 86 8 22 Sinectis S.A.
6535 84 7 25 Chilesat Servicios Empresari
10481 82 32 7 Prima S.A.
13999 81 52 9 Mega Cable S.A. de C.V.
4270 79 18 9 Red de Interconexion Universi
15311 78 25 37 Telefonica Empresas
5639 77 8 8 Telecommunications Services o
AfriNIC Region per AS prefix count summary
------------------------------------------
ASN No of nets /20 equiv MaxAgg Description
3741 269 636 226 The Internet Solution
5536 113 16 4 Internet Egypt Network
2018 102 297 98 Tertiary Education Network
2905 76 271 69 The Internetworking Company o
20928 55 16 2 Noor Advanced Technologies AS
24835 44 34 7 RAYA Telecom - Egypt
6713 34 38 9 Itissalat Al-MAGHRIB
8452 34 20 5 TEDATA
9129 33 3 2 UUNET Kenya
5713 27 141 24 Telkom SA Ltd
12455 27 7 4 Jambonet Autonomous system
8524 25 1 4 AUCEGYPT Autonomous System
16637 22 10 19 Johnnic e-Ventures
10798 18 1 12 Standard Bank of South Africa
12258 18 3 12 Vodacom Internet Company
11845 17 9 16 Data Pro Business Online
21280 17 2 3 Swift Global Kenya Ltd.Is an
8346 15 7 14 SONATEL-AS Autonomous System
15706 15 4 2 Sudatel Internet Exchange Aut
21491 14 1 3 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
721 1074 775 DLA Systems Automation Center
18566 756 750 Covad Communications
4134 870 703 Data Communications Bureau
4323 820 597 Time Warner Telecom
9583 583 554 Satyam Infoway Ltd.,
6197 823 469 BellSouth Network Solutions,
27364 442 422 Armstrong Cable Services
5668 424 406 Century Telephone
22773 416 393 Cox Communications, Inc. Atla
7843 482 382 Adelphia Corp.
6478 467 370 AT&T Worldnet Services
22909 419 354 Comcast Cable Corporation
4755 438 347 Videsh Sanchar Nigam Ltd. Aut
6467 375 344 E.Spire Communications, Inc.
17676 390 330 XTAGE CORPORATION
9929 354 314 China Netcom Corp.
1239 935 310 Sprint
13609 328 294 Choice One Communications Inc
4355 393 292 EarthLink, Inc.
9443 362 285 Primus Telecommunications
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U
26422 UNALLOCATED 196.46.184.0/22 3741 The Internet Solutio
64512 PRIVATE 199.213.17.0/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.213.17.128/25 15296 Netera Alliance Inc.
64512 PRIVATE 199.216.97.0/28 15296 Netera Alliance Inc.
65002 PRIVATE 208.179.184.0/24 11509 The Pajo Group
65529 PRIVATE 216.21.199.0/24 14697 VDot.Net
65529 PRIVATE 216.152.237.0/24 14697 VDot.Net
Advertised Unallocated Addresses
--------------------------------
Network Origin AS Description
132.0.0.0/10 721 DLA Systems Automation Center
137.0.0.0/13 721 DLA Systems Automation Center
158.0.0.0/13 721 DLA Systems Automation Center
192.44.0.0/19 702 UUNET - Commercial IP service
192.70.164.0/24 25689 National Research Council of
192.83.16.0/20 5515 Sonera Solution Autonomous Sy
192.83.32.0/19 5515 Sonera Solution Autonomous Sy
192.83.96.0/22 5515 Sonera Solution Autonomous Sy
192.83.100.0/24 5515 Sonera Solution Autonomous Sy
192.84.205.0/24 719 LANLINK autonomous system
192.119.135.0/24 270 NASA
192.135.50.0/24 7018 AT&T WorldNet Services
192.136.79.0/24 719 LANLINK autonomous system
192.172.0.0/19 721 DLA Systems Automation Center
192.172.11.0/24 721 DLA Systems Automation Center
192.200.100.0/24 7018 AT&T WorldNet Services
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:19 /9:3 /10:7 /11:15 /12:59
/13:139 /14:315 /15:564 /16:8223 /17:2339 /18:4022
/19:10024 /20:10613 /21:8182 /22:11373 /23:12916 /24:83645
/25:281 /26:239 /27:127 /28:60 /29:35 /30:130
/31:0 /32:49
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
18566 741 756 Covad Communications
6197 669 823 BellSouth Network Solutions,
2386 628 857 AT&T Data Communications Serv
7018 584 1421 AT&T WorldNet Services
27364 427 442 Armstrong Cable Services
9583 411 583 Satyam Infoway Ltd.,
702 382 627 UUNET - Commercial IP service
1239 372 935 Sprint
4766 372 552 Korea Internet Exchange for "
5668 367 424 Century Telephone
6198 327 450 BellSouth Network Solutions,
6517 290 313 Yipes Communications, Inc.
10036 290 290 C&M Communication Co. Ltd.
13609 286 328 Choice One Communications Inc
6467 284 375 E.Spire Communications, Inc.
9929 283 354 China Netcom Corp.
701 282 1099 UUNET Technologies, Inc.
21502 269 272 NUMERICABLE is a cabled netwo
4323 267 820 Time Warner Telecom
11456 258 303 Carolina Online, Inc.
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:4 8:10 12:1462 13:1 15:5 16:2
17:3 18:3 20:4 24:715 32:67 33:3
38:87 40:55 44:3 47:2 52:3 55:2
56:3 57:23 59:1 60:12 61:702 62:523
63:1851 64:2520 65:2082 66:2535 67:478 68:517
69:857 70:48 71:1 72:21 80:525 81:603
82:380 83:217 84:74 85:43 128:106 129:164
130:89 131:193 132:36 134:190 135:30 136:186
137:69 138:193 139:34 140:230 141:108 142:135
143:124 144:166 145:41 146:283 147:87 148:262
149:129 150:91 151:62 152:118 153:70 154:2
155:132 156:62 157:72 158:146 159:161 160:63
161:60 162:382 163:83 164:217 165:170 166:125
167:222 168:365 169:131 170:312 171:8 192:5657
193:3023 194:2221 195:1546 196:595 198:3888 199:3307
200:3980 201:34 202:5038 203:5830 204:3591 205:2103
206:2303 207:2540 208:2111 209:3053 210:1572 211:708
212:1166 213:1256 214:231 215:31 216:3740 217:1073
218:178 219:89 220:302 221:90 222:33
End of report