Routing Table Report 04:00 +10GMT Wed 23 Jul, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123467 Prefixes after maximum aggregation: 15548 Unique aggregates announced to Internet: 207 Total ASes present in the Internet Routing Table: 15453 Origin-only ASes present in the Internet Routing Table: 13380 Origin ASes announcing only one prefix: 6103 Transit ASes present in the Internet Routing Table: 2073 Transit-only ASes present in the Internet Routing Table: 66 Average AS path length visible in the Internet Routing Table: 6.7 Max AS path length visible: 255 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: 546993 Equivalent to 0 /8s, 8 /16s and 88 /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: 106 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21864 Total APNIC prefixes after maximum aggregation: 1986 Prefixes being announced from the APNIC address blocks: 123382 Unique aggregates announced from the APNIC address blocks: 187 APNIC Region origin ASes present in the Internet Routing Table: 1844 APNIC Region origin ASes announcing only one prefix: 538 APNIC Region transit ASes present in the Internet Routing Table: 301 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 23 Number of APNIC addresses announced to Internet: 425393 Equivalent to 0 /8s, 6 /16s and 125 /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: 74390 Total ARIN prefixes after maximum aggregation: 8487 Prefixes being announced from the ARIN address blocks: 31 Unique aggregates announced from the ARIN address blocks: 12 ARIN Region origin ASes present in the Internet Routing Table: 8476 ARIN Region origin ASes announcing only one prefix: 2891 ARIN Region transit ASes present in the Internet Routing Table: 822 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 6912 Equivalent to 0 /8s, 0 /16s and 27 /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: 22032 Total RIPE prefixes after maximum aggregation: 4734 Prefixes being announced from the RIPE address blocks: 28 Unique aggregates announced from the RIPE address blocks: 8 RIPE Region origin ASes present in the Internet Routing Table: 4726 RIPE Region origin ASes announcing only one prefix: 2579 RIPE Region transit ASes present in the Internet Routing Table: 850 Average RIPE Region AS path length visible: 7.3 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 114688 Equivalent to 0 /8s, 1 /16s and 192 /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: 5170 Total LACNIC prefixes after maximum aggregation: 341 Prefixes being announced from the LACNIC address blocks: 1 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 340 LACNIC Region origin ASes announcing only one prefix: 95 LACNIC Region transit ASes present in the Internet Routing Table: 74 Average LACNIC Region AS path length visible: 8.0 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 421 16 87 Videsh Sanchar Nigam Ltd. Aut 2907 372 0 1 SINET Japan 2764 345 1 21 connect.com.au pty ltd 17557 331 0 1 Pakistan Telecom 703 328 0 2 UUNET 7474 316 0 2 Optus Communications Pty Ltd 17676 250 0 1 XTAGE CORPORATION 9583 241 0 1 Satyam Infoway Ltd., 3786 238 0 1 DACOM Corporation 4134 225 0 1 Data Communications Bureau 4766 220 0 1 Korea Internet Exchange for " 9800 193 0 1 CHINA UNICOM 9443 180 0 2 Primus Telecommunications 9498 165 0 1 BHARTI BT INTERNET LTD. 9929 151 0 1 China Netcom Corp. 4739 142 0 5 Commerical Internet eXchange 9238 139 0 1 TATA ISP 4538 138 0 1 China Education and Research 4716 132 0 1 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1493 0 1 UUNET Technologies, Inc. 7018 1343 0 3 AT&T 1239 966 0 1 Sprint 3908 889 0 1 Supernet, Inc. 7132 845 0 1 Southwestern Bell Internet Se 4323 607 0 1 Time Warner Communications, I 7843 598 0 1 Adelphia Corp. 11305 563 0 1 Interland Incorporated 6197 541 0 1 BellSouth Network Solutions, 852 523 0 1 Telus Advanced Communications 209 519 0 1 Qwest 6198 482 0 1 BellSouth Network Solutions, 705 480 0 1 UUNET Technologies, Inc. 20115 470 0 1 Charter Communications 690 444 0 1 Merit Network 2386 402 0 1 AT&T Data Communications Serv 4355 399 0 1 EarthLink, Inc. 3356 383 0 1 Level 3 Communications, LLC 1 381 0 1 GENUITY 6347 354 0 1 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1006 0 1 UUNET - Commercial IP service 3301 291 0 1 TeliaNet Sweden 3320 267 0 1 Deutsche Telekom AG 8220 233 0 1 COLT Internet - International 680 232 0 1 DFN-IP service G-WiN 1257 226 0 1 SWIPnet Swedish IP Network 3215 224 0 1 France Telecom Transpac 5400 199 0 1 BT Ignite European Backbone 5515 186 0 1 Sonera Solution Autonomous Sy 786 179 0 1 The JANET IP Service 719 174 0 1 LANLINK autonomous system 8708 154 0 1 Romania Data Systems S.A. 3303 143 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 2856 126 0 1 BTnet UK Regional network 3246 121 0 1 Song Networks 3269 117 0 1 TELECOM ITALIA 3352 111 0 1 Ibernet, Internet Access Netw 5511 98 0 1 France Telecom 6746 90 0 1 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 297 0 1 ImpSat 7303 238 0 1 Telecom Argentina Stet-France 8151 221 0 1 UniNet S.A. de C.V. 11172 178 0 1 Servicios Alestra S.A de C.V 16814 135 0 1 NSS, S.A. 6503 128 0 1 AVANTEL, S.A. 10620 120 0 1 TVCABLE BOGOTA 6147 95 0 1 Telefonica Del Peru 11992 90 0 1 Integrated Systems 6535 75 0 1 Chilesat Servicios Empresari 8065 74 0 2 Empresas Publicas de Medellin 15311 73 0 1 Telefonica Empresas 11830 70 0 1 Instituto Costarricense de El 1916 69 0 1 Fundacao de Amparo a Pesquisa 4270 66 0 1 Red de Interconexion Universi 7927 66 0 1 Global One Venezuela 7080 64 0 1 Electronica y Comunicaciones 13999 61 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 1340 AT&T 1221 1153 1152 Telstra Pty Ltd 702 1006 1005 UUNET - Commercial IP service 1239 966 965 Sprint 3908 889 888 Supernet, Inc. 7132 845 844 Southwestern Bell Internet Se 4323 607 606 Time Warner Communications, I 7843 598 597 Adelphia Corp. 11305 563 562 Interland Incorporated 6197 541 540 BellSouth Network Solutions, 852 523 522 Telus Advanced Communications 209 519 518 Qwest 6198 482 481 BellSouth Network Solutions, 705 480 479 UUNET Technologies, Inc. 20115 470 469 Charter Communications 690 444 443 Merit Network 2386 402 401 AT&T Data Communications Serv 4355 399 398 EarthLink, Inc. 3356 383 382 Level 3 Communications, LLC 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 18412 UNALLOCATED 203.14.8.16/24 9674 Far EastTone Telecom 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 /16:20 /17:9 /18:15 /19:24 /20:7 /21:14 /22:17 /23:18 /24:123316 /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 24 345 connect.com.au pty ltd 2914 18 303 Verio, Inc. 4755 18 421 Videsh Sanchar Nigam Ltd. Aut 6316 8 36 StarNet, Inc. 8233 8 14 TeliaNet UK 7474 5 316 Optus Communications Pty Ltd 16214 4 15 Cerist-Alnet ISP networks Div 18719 3 4 TSR Solutions 1299 2 19 TeliaNet Global Network 7951 2 3 PCs Made Easy, LLC 2050 1 19 Sprint Enterprise Information 2643 1 1 IHEP-SU AS 4805 1 15 Equant (formerly Global One) 6085 1 1 SITA Network Operations Cente 7381 1 16 Sungard Recovery Services, In 8065 1 74 Empresas Publicas de Medellin 9299 1 3 Philippine Long Distance Tele 9443 1 180 Primus Telecommunications 14390 1 21 Core Communications, Inc 16441 1 26 Intellispace Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:17 62:1 64:2 66:1 195:9 199:3 202:48 203:57673 206:3 207:2 208:1 210:6 213:4 216:1 219:8 End of report