Routing Table Report 04:00 +10GMT Wed 18 Jun, 2003 Analysis Summary ---------------- BGP routing table entries examined: 122488 Prefixes after maximum aggregation: 15296 Unique aggregates announced to Internet: 118 Total ASes present in the Internet Routing Table: 15260 Origin-only ASes present in the Internet Routing Table: 13213 Origin ASes announcing only one prefix: 6012 Transit ASes present in the Internet Routing Table: 2047 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: 8 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 17095921 Equivalent to 1 /8s, 4 /16s and 220 /24s Percentage of available address space announced: 0.5 Percentage of allocated address space announced: 0.8 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 87 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21448 Total APNIC prefixes after maximum aggregation: 1897 Prefixes being announced from the APNIC address blocks: 122415 Unique aggregates announced from the APNIC address blocks: 100 APNIC Region origin ASes present in the Internet Routing Table: 1813 APNIC Region origin ASes announcing only one prefix: 535 APNIC Region transit ASes present in the Internet Routing Table: 293 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 22 Number of APNIC addresses announced to Internet: 190449 Equivalent to 0 /8s, 2 /16s and 231 /24s Percentage of available APNIC address space announced: 0.1 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: 74569 Total ARIN prefixes after maximum aggregation: 8429 Prefixes being announced from the ARIN address blocks: 20 Unique aggregates announced from the ARIN address blocks: 11 ARIN Region origin ASes present in the Internet Routing Table: 8419 ARIN Region origin ASes announcing only one prefix: 2879 ARIN Region transit ASes present in the Internet Routing Table: 832 Average ARIN Region AS path length visible: 5.7 Max ARIN Region AS path length visible: 32 Number of ARIN addresses announced to Internet: 13568 Equivalent to 0 /8s, 0 /16s and 53 /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: 21192 Total RIPE prefixes after maximum aggregation: 4636 Prefixes being announced from the RIPE address blocks: 28 Unique aggregates announced from the RIPE address blocks: 6 RIPE Region origin ASes present in the Internet Routing Table: 4631 RIPE Region origin ASes announcing only one prefix: 2510 RIPE Region transit ASes present in the Internet Routing Table: 829 Average RIPE Region AS path length visible: 6.6 Max RIPE Region AS path length visible: 25 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: 5263 Total LACNIC prefixes after maximum aggregation: 334 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: 334 LACNIC Region origin ASes announcing only one prefix: 88 LACNIC Region transit ASes present in the Internet Routing Table: 73 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 1172 0 1 Telstra Pty Ltd 4755 445 10 16 Videsh Sanchar Nigam Ltd. Aut 2907 374 0 1 SINET Japan 17557 345 0 1 Pakistan Telecom 2764 339 0 18 connect.com.au pty ltd 703 335 0 2 UUNET 7474 321 0 2 Optus Communications Pty Ltd 17676 250 0 1 XTAGE CORPORATION 3786 244 0 1 DACOM Corporation 4134 234 0 1 Data Communications Bureau 9583 232 0 1 Satyam Infoway Ltd., 4766 211 0 1 Korea Internet Exchange for " 9800 186 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 168 0 1 BHARTI BT INTERNET LTD. 4739 141 0 2 Commerical Internet eXchange 9238 135 1 2 TATA ISP 4716 128 0 1 TTnet 4713 122 0 1 NTT Communications Corporatio 4795 119 0 1 INDOSATNET-ASN ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1515 0 1 UUNET Technologies, Inc. 7018 1336 0 1 AT&T 7132 1001 0 1 Southwestern Bell Internet Se 1239 958 0 1 Sprint 3908 892 0 1 Supernet, Inc. 11305 647 0 1 Interland Incorporated 7843 613 0 1 Adelphia Corp. 4323 604 0 1 Time Warner Communications, I 852 525 0 1 Telus Advanced Communications 705 509 0 1 UUNET Technologies, Inc. 6197 502 0 1 BellSouth Network Solutions, 209 493 0 1 Qwest 6198 470 0 1 BellSouth Network Solutions, 20115 462 0 1 Charter Communications 690 451 0 1 Merit Network 1 433 0 1 GENUITY 2386 402 0 1 AT&T Data Communications Serv 4355 398 0 1 EarthLink, Inc. 3561 379 0 1 Cable & Wireless USA 6347 367 0 1 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 748 0 1 UUNET - Commercial IP service 3301 303 0 1 TeliaNet Sweden 3215 283 0 1 France Telecom Transpac 3320 263 0 1 Deutsche Telekom AG 680 232 0 1 DFN-IP service G-WiN 8220 225 0 1 COLT Internet - International 1257 223 0 1 SWIPnet Swedish IP Network 5400 200 0 1 BT Ignite European Backbone 5515 179 0 1 Sonera Solution Autonomous Sy 786 178 0 1 The JANET IP Service 719 175 0 1 LANLINK autonomous system 8708 152 0 1 Romania Data Systems S.A. 3303 140 0 1 Swisscom Ltd 12302 128 0 1 MobiFon S.A. 2856 124 0 1 BTnet UK Regional network 3246 120 0 1 Song Networks 3269 118 0 1 TELECOM ITALIA 3352 109 0 1 Ibernet, Internet Access Netw 5511 96 0 1 France Telecom 6746 88 0 1 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 296 0 1 ImpSat 7303 238 0 1 Telecom Argentina Stet-France 8151 217 0 1 UniNet S.A. de C.V. 11172 171 0 1 Servicios Alestra S.A de C.V 16814 135 0 1 NSS, S.A. 6503 128 0 1 AVANTEL, S.A. 10620 115 0 1 TVCABLE BOGOTA 6147 99 0 1 Telefonica Del Peru 11992 87 0 1 Integrated Systems 13999 86 0 1 Mega Cable S.A. de C.V. 8065 80 0 1 Empresas Publicas de Medellin 6535 76 0 1 Chilesat Servicios Empresari 1916 72 0 1 Fundacao de Amparo a Pesquisa 15311 71 0 1 Telefonica Empresas 4270 68 0 1 Red de Interconexion Universi 11830 67 0 1 Instituto Costarricense de El 7080 64 0 1 Electronica y Comunicaciones 7927 64 0 1 Global One Venezuela 15034 62 0 1 TIBA SA 7984 61 0 1 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65534 * 7018 1336 1335 AT&T 1221 1172 1171 Telstra Pty Ltd 7132 1001 1000 Southwestern Bell Internet Se 1239 958 957 Sprint 3908 892 891 Supernet, Inc. 702 748 747 UUNET - Commercial IP service 11305 647 646 Interland Incorporated 7843 613 612 Adelphia Corp. 4323 604 603 Time Warner Communications, I 852 525 524 Telus Advanced Communications 705 509 508 UUNET Technologies, Inc. 6197 502 501 BellSouth Network Solutions, 209 493 492 Qwest 6198 470 469 BellSouth Network Solutions, 20115 462 461 Charter Communications 690 451 450 Merit Network 1 433 432 GENUITY 4755 445 429 Videsh Sanchar Nigam Ltd. Aut 2386 402 401 AT&T Data Communications Serv List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65516 PRIVATE 203.14.8.16/24 17621 China Netcom Corp. 65516 PRIVATE 203.14.8.16/24 17621 China Netcom Corp. 65516 PRIVATE 203.14.8.16/24 17621 China Netcom Corp. 1877 UNALLOCATED 203.14.8.16/24 1880 Stupi, house man's p 64811 PRIVATE 203.14.8.16/24 4813 China Telecom(Group) 64811 PRIVATE 203.14.8.16/24 4813 China Telecom(Group) 64811 PRIVATE 203.14.8.16/24 4813 China Telecom(Group) 64811 PRIVATE 203.14.8.16/24 4813 China Telecom(Group) 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 /16:14 /17:6 /18:8 /19:14 /20:4 /21:8 /22:18 /23:16 /24:122374 /25:5 /26:0 /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 22 339 connect.com.au pty ltd 2914 18 294 Verio, Inc. 4755 17 445 Videsh Sanchar Nigam Ltd. Aut 7474 5 321 Optus Communications Pty Ltd 23284 4 4 Laurel Computer Systems Inc. 3261 3 11 Donbass Network 17253 2 4 CommuniGroup Inc. 3313 1 47 I.NET S.p.A. 4805 1 15 Equant (formerly Global One) 6085 1 1 SITA Network Operations Cente 7013 1 5 Health Sciences Libraries Con 7018 1 1336 AT&T 7381 1 15 Sungard Recovery Services, In 8192 1 4 ISP Telematika AS 8693 1 1 Azov Information Company Auto 8856 1 18 UkrNet Ltd 9299 1 3 Philippine Long Distance Tele 10442 1 2 U.S. Department of Education 12706 1 1 First Ukrainian International 16441 1 27 Intellispace Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:17 65:1 165:1 167:1 193:2 194:3 195:3 198:4 202:39 203:56745 204:5 206:1 208:1 210:5 212:1 219:8 End of report