Routing Table Report 04:00 +10GMT Thu 17 Jul, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123554 Prefixes after maximum aggregation: 15552 Unique aggregates announced to Internet: 234 Total ASes present in the Internet Routing Table: 15439 Origin-only ASes present in the Internet Routing Table: 13363 Origin ASes announcing only one prefix: 6117 Transit ASes present in the Internet Routing Table: 2076 Transit-only ASes present in the Internet Routing Table: 64 Average AS path length visible in the Internet Routing Table: 5.8 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 1 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 17357745 Equivalent to 1 /8s, 8 /16s and 219 /24s Percentage of available address space announced: 0.5 Percentage of allocated address space announced: 0.8 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 111 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21910 Total APNIC prefixes after maximum aggregation: 1984 Prefixes being announced from the APNIC address blocks: 123463 Unique aggregates announced from the APNIC address blocks: 203 APNIC Region origin ASes present in the Internet Routing Table: 1840 APNIC Region origin ASes announcing only one prefix: 537 APNIC Region transit ASes present in the Internet Routing Table: 294 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 447665 Equivalent to 0 /8s, 6 /16s and 212 /24s Percentage of available APNIC address space announced: 0.2 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 74453 Total ARIN prefixes after maximum aggregation: 8492 Prefixes being announced from the ARIN address blocks: 28 Unique aggregates announced from the ARIN address blocks: 13 ARIN Region origin ASes present in the Internet Routing Table: 8474 ARIN Region origin ASes announcing only one prefix: 2911 ARIN Region transit ASes present in the Internet Routing Table: 835 Average ARIN Region AS path length visible: 5.7 Max ARIN Region AS path length visible: 32 Number of ARIN addresses announced to Internet: 14336 Equivalent to 0 /8s, 0 /16s and 56 /24s Percentage of available ARIN address space announced: 0.0 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 22006 Total RIPE prefixes after maximum aggregation: 4733 Prefixes being announced from the RIPE address blocks: 29 Unique aggregates announced from the RIPE address blocks: 17 RIPE Region origin ASes present in the Internet Routing Table: 4721 RIPE Region origin ASes announcing only one prefix: 2575 RIPE Region transit ASes present in the Internet Routing Table: 850 Average RIPE Region AS path length visible: 6.3 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 118528 Equivalent to 0 /8s, 1 /16s and 207 /24s Percentage of available RIPE address space announced: 0.1 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 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5174 Total LACNIC prefixes after maximum aggregation: 343 Prefixes being announced from the LACNIC address blocks: 2 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 339 LACNIC Region origin ASes announcing only one prefix: 94 LACNIC Region transit ASes present in the Internet Routing Table: 71 Average LACNIC Region AS path length visible: 7.0 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s Percentage of available LACNIC address space announced: 0.0 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1153 0 1 Telstra Pty Ltd 4755 431 22 90 Videsh Sanchar Nigam Ltd. Aut 2907 371 0 1 SINET Japan 17557 349 0 1 Pakistan Telecom 2764 339 1 21 connect.com.au pty ltd 703 333 0 2 UUNET 7474 314 0 2 Optus Communications Pty Ltd 17676 250 0 1 XTAGE CORPORATION 3786 243 0 1 DACOM Corporation 9583 234 0 1 Satyam Infoway Ltd., 4134 222 0 1 Data Communications Bureau 4766 220 0 1 Korea Internet Exchange for " 9800 192 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 169 0 1 BHARTI BT INTERNET LTD. 4538 166 0 1 China Education and Research 9929 150 0 1 China Netcom Corp. 4739 142 0 5 Commerical Internet eXchange 9238 137 0 1 TATA ISP 4716 132 0 1 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1496 0 1 UUNET Technologies, Inc. 7018 1343 0 1 AT&T 1239 966 0 1 Sprint 3908 887 0 1 Supernet, Inc. 7132 843 0 1 Southwestern Bell Internet Se 4323 608 0 1 Time Warner Communications, I 7843 596 0 1 Adelphia Corp. 11305 557 0 1 Interland Incorporated 6197 527 0 1 BellSouth Network Solutions, 852 524 0 1 Telus Advanced Communications 209 515 0 1 Qwest 705 487 0 1 UUNET Technologies, Inc. 6198 483 0 1 BellSouth Network Solutions, 20115 463 0 1 Charter Communications 690 442 0 1 Merit Network 2386 406 0 1 AT&T Data Communications Serv 4355 399 0 1 EarthLink, Inc. 1 389 0 1 GENUITY 3356 373 0 1 Level 3 Communications, LLC 6347 362 0 1 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1011 0 1 UUNET - Commercial IP service 3301 291 0 1 TeliaNet Sweden 3320 267 0 1 Deutsche Telekom AG 3215 240 0 1 France Telecom Transpac 8220 233 0 1 COLT Internet - International 680 232 0 1 DFN-IP service G-WiN 1257 224 0 1 SWIPnet Swedish IP Network 5400 198 0 1 BT Ignite European Backbone 5515 187 0 1 Sonera Solution Autonomous Sy 786 180 0 1 The JANET IP Service 719 174 0 1 LANLINK autonomous system 8708 154 0 1 Romania Data Systems S.A. 3303 142 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 2856 126 0 1 BTnet UK Regional network 3246 122 0 1 Song Networks 3269 117 0 1 TELECOM ITALIA 3352 111 0 1 Ibernet, Internet Access Netw 5511 98 0 1 France Telecom 9051 92 0 1 INCONET Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 297 0 1 ImpSat 7303 233 0 1 Telecom Argentina Stet-France 8151 222 0 1 UniNet S.A. de C.V. 11172 174 0 1 Servicios Alestra S.A de C.V 16814 135 0 1 NSS, S.A. 6503 131 0 1 AVANTEL, S.A. 10620 115 0 1 TVCABLE BOGOTA 6147 95 0 1 Telefonica Del Peru 11992 87 0 1 Integrated Systems 8065 80 0 1 Empresas Publicas de Medellin 6535 75 0 1 Chilesat Servicios Empresari 15311 74 0 1 Telefonica Empresas 1916 72 0 1 Fundacao de Amparo a Pesquisa 11830 70 0 1 Instituto Costarricense de El 4270 66 0 1 Red de Interconexion Universi 7927 66 0 1 Global One Venezuela 7080 64 0 1 Electronica y Comunicaciones 13999 63 0 1 Mega Cable S.A. de C.V. 7984 60 0 1 Global One Colombia 7738 57 0 1 Telecomunicacoes da Bahia S.A Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1343 1342 AT&T 1221 1153 1152 Telstra Pty Ltd 702 1011 1010 UUNET - Commercial IP service 1239 966 965 Sprint 3908 887 886 Supernet, Inc. 7132 843 842 Southwestern Bell Internet Se 4323 608 607 Time Warner Communications, I 7843 596 595 Adelphia Corp. 11305 557 556 Interland Incorporated 6197 527 526 BellSouth Network Solutions, 852 524 523 Telus Advanced Communications 209 515 514 Qwest 705 487 486 UUNET Technologies, Inc. 6198 483 482 BellSouth Network Solutions, 20115 463 462 Charter Communications 690 442 441 Merit Network 2386 406 405 AT&T Data Communications Serv 4355 399 398 EarthLink, Inc. 1 389 388 GENUITY List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 203.14.8.16/24 1880 Stupi, house man's p Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:1 /9:0 /10:0 /11:0 /12:0 /13:0 /14:0 /15:0 /16:16 /17:9 /18:15 /19:23 /20:11 /21:14 /22:17 /23:16 /24:123405 /25:6 /26:1 /27:1 /28:2 /29:11 /30:1 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 2764 24 339 connect.com.au pty ltd 4755 19 431 Videsh Sanchar Nigam Ltd. Aut 2914 18 300 Verio, Inc. 8233 8 14 TeliaNet UK 3801 7 29 Mikrotec Internet Services 16596 6 12 UNIVERSIDAD AUTONOMA DE BAJA 7474 5 314 Optus Communications Pty Ltd 21491 5 6 UTL On-line is RF broadband I 16460 3 3 Intellispace Inc. 1299 2 19 TeliaNet Global Network 20545 2 3 GRENA Autonomous System 25579 2 3 SKYTRON Communications GmbH & 4805 1 15 Equant (formerly Global One) 6085 1 1 SITA Network Operations Cente 7381 1 15 Sungard Recovery Services, In 9299 1 3 Philippine Long Distance Tele 15290 1 237 AT&T Canada IES 16441 1 27 Intellispace Inc. 17397 1 7 SUREFIRE COMMERCE 20228 1 7 Pacnet S.A. de C.V. Number of /24s announced per /8 block (Global) ---------------------------------------------- 32:1 57:1 61:17 62:1 65:4 66:2 160:1 192:2 195:8 198:2 199:3 202:41 203:57758 205:1 206:1 208:4 209:1 210:5 213:5 216:1 217:2 219:8 End of report