Routing Table Report 04:00 +10GMT Thu 21 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123437 Prefixes after maximum aggregation: 15729 Unique aggregates announced to Internet: 220 Total ASes present in the Internet Routing Table: 15631 Origin-only ASes present in the Internet Routing Table: 13509 Origin ASes announcing only one prefix: 6213 Transit ASes present in the Internet Routing Table: 2122 Transit-only ASes present in the Internet Routing Table: 74 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: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 566433 Equivalent to 0 /8s, 8 /16s and 164 /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: 129 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22026 Total APNIC prefixes after maximum aggregation: 2025 Prefixes being announced from the APNIC address blocks: 123368 Unique aggregates announced from the APNIC address blocks: 202 APNIC Region origin ASes present in the Internet Routing Table: 1871 APNIC Region origin ASes announcing only one prefix: 551 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: 439457 Equivalent to 0 /8s, 6 /16s and 180 /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: 74219 Total ARIN prefixes after maximum aggregation: 8558 Prefixes being announced from the ARIN address blocks: 33 Unique aggregates announced from the ARIN address blocks: 7 ARIN Region origin ASes present in the Internet Routing Table: 8549 ARIN Region origin ASes announcing only one prefix: 2952 ARIN Region transit ASes present in the Internet Routing Table: 851 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 3840 Equivalent to 0 /8s, 0 /16s and 15 /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: 21987 Total RIPE prefixes after maximum aggregation: 4798 Prefixes being announced from the RIPE address blocks: 20 Unique aggregates announced from the RIPE address blocks: 11 RIPE Region origin ASes present in the Internet Routing Table: 4791 RIPE Region origin ASes announcing only one prefix: 2612 RIPE Region transit ASes present in the Internet Routing Table: 863 Average RIPE Region AS path length visible: 7.4 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 123136 Equivalent to 0 /8s, 1 /16s and 225 /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: 5194 Total LACNIC prefixes after maximum aggregation: 348 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: 345 LACNIC Region origin ASes announcing only one prefix: 98 LACNIC Region transit ASes present in the Internet Routing Table: 73 Average LACNIC Region AS path length visible: 8.0 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 1153 0 1 Telstra Pty Ltd 4755 385 15 71 Videsh Sanchar Nigam Ltd. Aut 2907 365 0 1 SINET Japan 703 340 0 2 UUNET 2764 334 1 20 connect.com.au pty ltd 7474 325 0 2 Optus Communications Pty Ltd 4134 318 0 1 Data Communications Bureau 17557 297 0 1 Pakistan Telecom 17676 251 0 1 XTAGE CORPORATION 9583 242 1 8 Satyam Infoway Ltd., 3786 239 0 1 DACOM Corporation 4766 223 0 1 Korea Internet Exchange for " 9800 198 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 170 0 1 BHARTI BT INTERNET LTD. 4538 168 0 1 China Education and Research 17642 158 0 3 RequestDSL BGP AS# for Sydney 9929 151 2 2 China Netcom Corp. 4739 143 0 5 Commerical Internet eXchange 9238 140 0 1 TATA ISP ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1472 0 1 UUNET Technologies, Inc. 7018 1399 0 1 AT&T 3908 912 0 1 Supernet, Inc. 1239 900 0 1 Sprint 4323 623 0 1 Time Warner Communications, I 6197 567 0 1 BellSouth Network Solutions, 7843 566 0 1 Adelphia Corp. 852 522 0 1 Telus Advanced Communications 209 517 0 1 Qwest 6198 513 0 1 BellSouth Network Solutions, 705 479 0 1 UUNET Technologies, Inc. 20115 476 0 1 Charter Communications 3356 472 0 1 Level 3 Communications, LLC 7132 410 0 1 Southwestern Bell Internet Se 690 408 0 1 Merit Network 4355 404 0 1 EarthLink, Inc. 2386 375 0 1 AT&T Data Communications Serv 11305 358 0 1 Interland Incorporated 6347 356 0 1 SAVVIS Communications Corpora 19029 348 0 1 New Edge Networks RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 734 0 1 UUNET - Commercial IP service 3301 289 0 1 TeliaNet Sweden 3320 260 0 1 Deutsche Telekom AG 8220 246 0 1 COLT Internet - International 1257 238 0 1 SWIPnet Swedish IP Network 680 232 0 1 DFN-IP service G-WiN 3215 214 0 1 France Telecom Transpac 5515 185 0 1 Sonera Solution Autonomous Sy 786 179 0 1 The JANET IP Service 719 174 0 1 LANLINK autonomous system 5400 173 0 1 BT Ignite European Backbone 8708 155 0 1 Romania Data Systems S.A. 3303 139 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 3246 122 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 9051 88 0 1 INCONET Autonomous System 5511 86 0 1 France Telecom LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 311 0 1 ImpSat 7303 238 0 1 Telecom Argentina Stet-France 8151 222 0 1 UniNet S.A. de C.V. 11172 178 0 1 Servicios Alestra S.A de C.V 16814 152 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 84 0 1 Telefonica Del Peru 8065 80 0 1 Empresas Publicas de Medellin 6535 75 0 1 Chilesat Servicios Empresari 15311 75 0 1 Telefonica Empresas 11830 74 0 1 Instituto Costarricense de El 1916 72 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 13999 57 0 1 Mega Cable S.A. de C.V. 4926 56 0 1 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1399 1398 AT&T 1221 1153 1152 Telstra Pty Ltd 3908 912 911 Supernet, Inc. 1239 900 899 Sprint 702 734 733 UUNET - Commercial IP service 4323 623 622 Time Warner Communications, I 6197 567 566 BellSouth Network Solutions, 7843 566 565 Adelphia Corp. 852 522 521 Telus Advanced Communications 209 517 516 Qwest 6198 513 512 BellSouth Network Solutions, 705 479 478 UUNET Technologies, Inc. 20115 476 475 Charter Communications 3356 472 471 Level 3 Communications, LLC 7132 410 409 Southwestern Bell Internet Se 690 408 407 Merit Network 4355 404 403 EarthLink, Inc. 2386 375 374 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 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 /16:6 /17:9 /18:16 /19:10 /20:8 /21:21 /22:21 /23:21 /24:123299 /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 2764 23 334 connect.com.au pty ltd 4755 19 385 Videsh Sanchar Nigam Ltd. Aut 2914 17 293 Verio, Inc. 9942 14 140 COMindico Australia 9583 11 242 Satyam Infoway Ltd., 6316 8 34 StarNet, Inc. 7474 5 325 Optus Communications Pty Ltd 11107 4 15 Internet Connect Services 14185 4 9 Golden Corridor Communication 26608 3 48 SkyOnline do Brasil Ltda 12792 2 3 CINET Autonomous System 18640 2 2 idealab! 21891 2 3 Buggs Island Telephone Cooper 2050 1 16 Sprint Enterprise Information 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 6085 1 1 SITA Network Operations Cente 7381 1 15 Sungard Recovery Services, In 8856 1 22 UkrNet Ltd 12517 1 1 Asia-Pacific Maritime Informa Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:17 63:4 64:5 66:4 192:1 193:1 194:1 195:1 198:2 200:2 202:56 203:57638 206:1 207:2 208:1 210:13 216:1 217:1 219:8 220:3 End of report