Routing Table Report 04:00 +10GMT Sun 20 Jul, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123532 Prefixes after maximum aggregation: 15549 Unique aggregates announced to Internet: 208 Total ASes present in the Internet Routing Table: 15455 Origin-only ASes present in the Internet Routing Table: 13384 Origin ASes announcing only one prefix: 6116 Transit ASes present in the Internet Routing Table: 2071 Transit-only ASes present in the Internet Routing Table: 63 Average AS path length visible in the Internet Routing Table: 6.8 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: 17319577 Equivalent to 1 /8s, 8 /16s and 70 /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: 91 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21932 Total APNIC prefixes after maximum aggregation: 1988 Prefixes being announced from the APNIC address blocks: 123465 Unique aggregates announced from the APNIC address blocks: 186 APNIC Region origin ASes present in the Internet Routing Table: 1846 APNIC Region origin ASes announcing only one prefix: 541 APNIC Region transit ASes present in the Internet Routing Table: 297 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 23 Number of APNIC addresses announced to Internet: 419993 Equivalent to 0 /8s, 6 /16s and 104 /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: 74423 Total ARIN prefixes after maximum aggregation: 8491 Prefixes being announced from the ARIN address blocks: 15 Unique aggregates announced from the ARIN address blocks: 6 ARIN Region origin ASes present in the Internet Routing Table: 8484 ARIN Region origin ASes announcing only one prefix: 2901 ARIN Region transit ASes present in the Internet Routing Table: 825 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 13056 Equivalent to 0 /8s, 0 /16s and 51 /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: 21982 Total RIPE prefixes after maximum aggregation: 4731 Prefixes being announced from the RIPE address blocks: 29 Unique aggregates announced from the RIPE address blocks: 15 RIPE Region origin ASes present in the Internet Routing Table: 4722 RIPE Region origin ASes announcing only one prefix: 2579 RIPE Region transit ASes present in the Internet Routing Table: 852 Average RIPE Region AS path length visible: 7.3 Max RIPE Region AS path length visible: 22 Number of RIPE addresses announced to Internet: 109312 Equivalent to 0 /8s, 1 /16s and 171 /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: 5184 Total LACNIC prefixes after maximum aggregation: 339 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: 339 LACNIC Region origin ASes announcing only one prefix: 95 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: 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 1151 0 1 Telstra Pty Ltd 4755 420 16 86 Videsh Sanchar Nigam Ltd. Aut 2907 372 0 1 SINET Japan 17557 352 0 1 Pakistan Telecom 703 330 0 2 UUNET 2764 329 1 19 connect.com.au pty ltd 7474 316 0 2 Optus Communications Pty Ltd 17676 250 0 1 XTAGE CORPORATION 3786 243 0 1 DACOM Corporation 9583 239 0 1 Satyam Infoway Ltd., 4134 225 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 151 0 1 China Netcom Corp. 4739 142 0 5 Commerical Internet eXchange 9238 138 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 1494 0 1 UUNET Technologies, Inc. 7018 1344 0 1 AT&T 1239 966 0 1 Sprint 3908 886 0 1 Supernet, Inc. 7132 843 0 1 Southwestern Bell Internet Se 4323 608 0 1 Time Warner Communications, I 7843 599 0 1 Adelphia Corp. 11305 558 0 1 Interland Incorporated 6197 541 0 1 BellSouth Network Solutions, 209 520 0 1 Qwest 852 520 0 1 Telus Advanced Communications 6198 483 0 1 BellSouth Network Solutions, 705 480 0 1 UUNET Technologies, Inc. 20115 473 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. 1 386 0 1 GENUITY 3356 378 0 1 Level 3 Communications, LLC 6347 354 0 1 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1008 0 1 UUNET - Commercial IP service 3301 290 0 1 TeliaNet Sweden 3320 267 0 1 Deutsche Telekom AG 3215 240 0 1 France Telecom Transpac 680 233 0 1 DFN-IP service G-WiN 8220 232 0 1 COLT Internet - International 1257 220 0 1 SWIPnet Swedish IP Network 5400 198 0 1 BT Ignite European Backbone 5515 185 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 143 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 2856 126 0 1 BTnet UK Regional network 3246 118 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 295 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 135 0 1 NSS, S.A. 6503 130 0 1 AVANTEL, S.A. 10620 120 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 69 0 1 Instituto Costarricense de El 4270 67 0 1 Red de Interconexion Universi 7927 66 0 1 Global One Venezuela 7080 64 0 1 Electronica y Comunicaciones 13999 62 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 1344 1343 AT&T 1221 1151 1150 Telstra Pty Ltd 702 1008 1007 UUNET - Commercial IP service 1239 966 965 Sprint 3908 886 885 Supernet, Inc. 7132 843 842 Southwestern Bell Internet Se 4323 608 607 Time Warner Communications, I 7843 599 598 Adelphia Corp. 11305 558 557 Interland Incorporated 6197 541 540 BellSouth Network Solutions, 209 520 519 Qwest 852 520 519 Telus Advanced Communications 6198 483 482 BellSouth Network Solutions, 705 480 479 UUNET Technologies, Inc. 20115 473 472 Charter Communications 690 444 443 Merit Network 2386 402 401 AT&T Data Communications Serv 4355 399 398 EarthLink, Inc. 1 386 385 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 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 /8:1 /9:0 /10:0 /11:0 /12:0 /13:0 /14:0 /15:0 /16:18 /17:10 /18:15 /19:21 /20:7 /21:9 /22:13 /23:15 /24:123398 /25:6 /26:1 /27:1 /28:1 /29:10 /30:1 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 2764 22 329 connect.com.au pty ltd 2914 18 303 Verio, Inc. 4755 18 420 Videsh Sanchar Nigam Ltd. Aut 8233 8 14 TeliaNet UK 28849 8 8 JSC GlobalOneBel, Minsk, Bela 7474 5 316 Optus Communications Pty Ltd 1299 2 19 TeliaNet Global Network 4805 1 15 Equant (formerly Global One) 6085 1 1 SITA Network Operations Cente 7013 1 5 Health Sciences Libraries Con 7381 1 15 Sungard Recovery Services, In 9299 1 3 Philippine Long Distance Tele 16441 1 26 Intellispace Inc. 20108 1 2 PIVOT TECHNOLOGIES, INC. 22857 1 1 National Advisors Trust Compa 22978 1 1 Governors State University 23526 1 1 Carlson Capital, L.P. Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:17 62:1 65:1 67:1 192:1 195:8 202:50 203:57760 204:1 206:2 210:5 216:1 217:5 219:8 End of report