Routing Table Report 04:00 +10GMT Wed 03 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123899 Prefixes after maximum aggregation: 15882 Unique aggregates announced to Internet: 285 Total ASes present in the Internet Routing Table: 15681 Origin-only ASes present in the Internet Routing Table: 13549 Origin ASes announcing only one prefix: 6219 Transit ASes present in the Internet Routing Table: 2132 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 6.8 Max AS path length visible: 36 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 609953 Equivalent to 0 /8s, 9 /16s and 78 /24s Percentage of available address space announced: 0.0 Percentage of allocated address space announced: 0.0 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 164 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22187 Total APNIC prefixes after maximum aggregation: 2045 Prefixes being announced from the APNIC address blocks: 123677 Unique aggregates announced from the APNIC address blocks: 224 APNIC Region origin ASes present in the Internet Routing Table: 1872 APNIC Region origin ASes announcing only one prefix: 550 APNIC Region transit ASes present in the Internet Routing Table: 311 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 477857 Equivalent to 0 /8s, 7 /16s and 74 /24s Percentage of available APNIC address space announced: 0.3 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: 74360 Total ARIN prefixes after maximum aggregation: 8665 Prefixes being announced from the ARIN address blocks: 92 Unique aggregates announced from the ARIN address blocks: 53 ARIN Region origin ASes present in the Internet Routing Table: 8571 ARIN Region origin ASes announcing only one prefix: 2951 ARIN Region transit ASes present in the Internet Routing Table: 849 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 25088 Equivalent to 0 /8s, 0 /16s and 98 /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: 22093 Total RIPE prefixes after maximum aggregation: 4826 Prefixes being announced from the RIPE address blocks: 17 Unique aggregates announced from the RIPE address blocks: 8 RIPE Region origin ASes present in the Internet Routing Table: 4817 RIPE Region origin ASes announcing only one prefix: 2618 RIPE Region transit ASes present in the Internet Routing Table: 870 Average RIPE Region AS path length visible: 7.5 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 107008 Equivalent to 0 /8s, 1 /16s and 162 /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: 5247 Total LACNIC prefixes after maximum aggregation: 346 Prefixes being announced from the LACNIC address blocks: 0 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 346 LACNIC Region origin ASes announcing only one prefix: 100 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 8.1 Max LACNIC Region AS path length visible: 32 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 1156 0 1 Telstra Pty Ltd 4755 391 15 70 Videsh Sanchar Nigam Ltd. Aut 2907 365 0 1 SINET Japan 703 339 0 2 UUNET 7474 329 0 2 Optus Communications Pty Ltd 2764 328 1 20 connect.com.au pty ltd 4134 320 0 1 Data Communications Bureau 17557 303 0 1 Pakistan Telecom 17676 253 0 1 XTAGE CORPORATION 9583 242 0 2 Satyam Infoway Ltd., 3786 237 0 1 DACOM Corporation 4766 222 0 1 Korea Internet Exchange for " 9800 201 0 1 CHINA UNICOM 9443 184 0 3 Primus Telecommunications 9498 177 0 1 BHARTI BT INTERNET LTD. 4538 168 0 1 China Education and Research 9942 156 8 30 COMindico Australia 17642 156 0 3 RequestDSL BGP AS# for Sydney 9929 154 0 1 China Netcom Corp. 4739 143 0 5 Commerical Internet eXchange ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1475 0 3 UUNET Technologies, Inc. 7018 1387 0 1 AT&T 3908 915 0 1 Supernet, Inc. 1239 906 0 1 Sprint 4323 626 0 1 Time Warner Communications, I 6197 571 0 1 BellSouth Network Solutions, 7843 544 0 1 Adelphia Corp. 852 515 0 1 Telus Advanced Communications 209 510 0 1 Qwest 6198 498 0 1 BellSouth Network Solutions, 3356 476 0 1 Level 3 Communications, LLC 705 462 0 1 UUNET Technologies, Inc. 7132 413 0 1 Southwestern Bell Internet Se 690 410 0 1 Merit Network 4355 390 0 1 EarthLink, Inc. 20115 389 0 1 Charter Communications 2386 377 0 1 AT&T Data Communications Serv 3549 352 0 1 Global Crossing 6347 352 0 1 SAVVIS Communications Corpora 19029 347 0 1 New Edge Networks RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 723 0 1 UUNET - Commercial IP service 3301 297 0 1 TeliaNet Sweden 3320 266 0 1 Deutsche Telekom AG 8220 246 0 1 COLT Internet - International 1257 240 0 1 SWIPnet Swedish IP Network 680 232 0 1 DFN-IP service G-WiN 3215 213 0 1 France Telecom Transpac 5515 185 0 1 Sonera Solution Autonomous Sy 786 179 0 1 The JANET IP Service 5400 179 0 1 BT Ignite European Backbone 719 171 0 1 LANLINK autonomous system 8708 155 0 1 Romania Data Systems S.A. 3303 143 0 1 Swisscom Ltd 12302 126 0 1 MobiFon S.A. 3246 124 0 1 Song Networks 3269 117 0 1 TELECOM ITALIA 2856 113 0 1 BTnet UK Regional network 3352 111 0 1 Ibernet, Internet Access Netw 6746 88 0 1 Dynamic Network Technologies, 9051 87 0 1 INCONET Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 320 0 1 ImpSat 7303 240 0 1 Telecom Argentina Stet-France 8151 230 0 1 UniNet S.A. de C.V. 11172 187 0 1 Servicios Alestra S.A de C.V 16814 151 0 1 NSS, S.A. 6503 131 0 1 AVANTEL, S.A. 10620 127 0 1 TVCABLE BOGOTA 11992 87 0 1 Integrated Systems 6147 82 0 1 Telefonica Del Peru 8065 80 0 1 Empresas Publicas de Medellin 11830 78 0 1 Instituto Costarricense de El 6535 75 0 1 Chilesat Servicios Empresari 15311 75 0 1 Telefonica Empresas 1916 71 0 1 Fundacao de Amparo a Pesquisa 4270 68 0 1 Red de Interconexion Universi 7927 68 0 1 Global One Venezuela 7080 64 0 1 Electronica y Comunicaciones 7984 59 0 1 Global One Colombia 4926 56 0 1 Telintar S.A. 13999 56 0 1 Mega Cable S.A. de C.V. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1387 1386 AT&T 1221 1156 1155 Telstra Pty Ltd 3908 915 914 Supernet, Inc. 1239 906 905 Sprint 702 723 722 UUNET - Commercial IP service 4323 626 625 Time Warner Communications, I 6197 571 570 BellSouth Network Solutions, 7843 544 543 Adelphia Corp. 852 515 514 Telus Advanced Communications 209 510 509 Qwest 6198 498 497 BellSouth Network Solutions, 3356 476 475 Level 3 Communications, LLC 705 462 461 UUNET Technologies, Inc. 7132 413 412 Southwestern Bell Internet Se 690 410 409 Merit Network 4355 390 389 EarthLink, Inc. 20115 389 388 Charter Communications 2386 377 376 AT&T Data Communications Serv 2907 365 364 SINET Japan List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 203.14.8.16/24 4747 Taiwan Telecommunica 64512 PRIVATE 203.14.8.16/24 9498 BHARTI BT INTERNET L 1877 UNALLOCATED 203.14.8.16/24 1876 Southern Methodist U Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:0 /9:0 /10:0 /11:0 /12:0 /13:0 /14:0 /15:0 /16:9 /17:10 /18:16 /19:10 /20:5 /21:19 /22:29 /23:27 /24:123748 /25:6 /26:1 /27:1 /28:1 /29:11 /30:1 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 9942 31 156 COMindico Australia 2764 23 328 connect.com.au pty ltd 4755 18 391 Videsh Sanchar Nigam Ltd. Aut 2914 17 291 Verio, Inc. 14846 14 44 NBC Internet 8668 10 13 PTC Zimbabwe 19981 9 9 Heller Financial Inc. 6316 8 33 StarNet, Inc. 7474 5 329 Optus Communications Pty Ltd 13346 3 7 Wizard Communication Systems 18466 3 3 Geminicommunications Limited 1239 2 906 Sprint 5668 2 203 Century Telephone 12069 2 5 Rev.Net Technologies, Inc. 2050 1 17 Sprint Enterprise Information 3254 1 3 LUCKY-NET Autonomous system 3908 1 915 Supernet, Inc. 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 6001 1 11 HQ USASC - USANETA Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:16 63:4 64:1 65:2 134:2 192:80 193:2 194:2 196:2 198:14 199:19 202:46 203:57957 204:3 205:5 206:5 209:35 210:5 219:8 220:3 End of report