Routing Table Report 04:00 +10GMT Sat 30 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 124197 Prefixes after maximum aggregation: 15813 Unique aggregates announced to Internet: 262 Total ASes present in the Internet Routing Table: 15678 Origin-only ASes present in the Internet Routing Table: 13538 Origin ASes announcing only one prefix: 6214 Transit ASes present in the Internet Routing Table: 2140 Transit-only ASes present in the Internet Routing Table: 76 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: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 652449 Equivalent to 0 /8s, 9 /16s and 244 /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: 146 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22285 Total APNIC prefixes after maximum aggregation: 2042 Prefixes being announced from the APNIC address blocks: 124108 Unique aggregates announced from the APNIC address blocks: 222 APNIC Region origin ASes present in the Internet Routing Table: 1872 APNIC Region origin ASes announcing only one prefix: 547 APNIC Region transit ASes present in the Internet Routing Table: 312 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 476577 Equivalent to 0 /8s, 7 /16s and 69 /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: 74602 Total ARIN prefixes after maximum aggregation: 8602 Prefixes being announced from the ARIN address blocks: 46 Unique aggregates announced from the ARIN address blocks: 28 ARIN Region origin ASes present in the Internet Routing Table: 8571 ARIN Region origin ASes announcing only one prefix: 2948 ARIN Region transit ASes present in the Internet Routing Table: 857 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 70144 Equivalent to 0 /8s, 1 /16s and 18 /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: 22076 Total RIPE prefixes after maximum aggregation: 4823 Prefixes being announced from the RIPE address blocks: 19 Unique aggregates announced from the RIPE address blocks: 12 RIPE Region origin ASes present in the Internet Routing Table: 4813 RIPE Region origin ASes announcing only one prefix: 2619 RIPE Region transit ASes present in the Internet Routing Table: 867 Average RIPE Region AS path length visible: 7.4 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 105728 Equivalent to 0 /8s, 1 /16s and 157 /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: 5222 Total LACNIC prefixes after maximum aggregation: 346 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: 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 1157 0 1 Telstra Pty Ltd 4755 381 15 70 Videsh Sanchar Nigam Ltd. Aut 2907 364 0 1 SINET Japan 703 362 0 2 UUNET 2764 333 1 20 connect.com.au pty ltd 7474 328 0 2 Optus Communications Pty Ltd 4134 320 0 1 Data Communications Bureau 17557 301 0 1 Pakistan Telecom 17676 252 0 1 XTAGE CORPORATION 9583 243 0 1 Satyam Infoway Ltd., 3786 237 0 1 DACOM Corporation 4766 222 0 1 Korea Internet Exchange for " 9800 198 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 176 0 1 BHARTI BT INTERNET LTD. 4538 168 0 1 China Education and Research 17642 156 0 3 RequestDSL BGP AS# for Sydney 9942 155 8 29 COMindico Australia 9929 152 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 1477 0 1 UUNET Technologies, Inc. 7018 1386 0 1 AT&T 1239 908 0 1 Sprint 3908 877 0 1 Supernet, Inc. 4323 624 0 1 Time Warner Communications, I 6197 571 0 1 BellSouth Network Solutions, 7843 548 0 1 Adelphia Corp. 852 516 0 1 Telus Advanced Communications 209 514 0 1 Qwest 6198 514 0 1 BellSouth Network Solutions, 20115 480 0 1 Charter Communications 3356 475 0 1 Level 3 Communications, LLC 705 465 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. 2386 377 0 1 AT&T Data Communications Serv 11305 358 0 1 Interland Incorporated 6347 354 0 1 SAVVIS Communications Corpora 3549 349 0 1 Global Crossing RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 726 0 1 UUNET - Commercial IP service 3301 294 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 178 0 1 BT Ignite European Backbone 719 171 0 1 LANLINK autonomous system 8708 159 0 1 Romania Data Systems S.A. 3303 143 0 1 Swisscom Ltd 12302 126 0 1 MobiFon S.A. 3246 123 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 88 0 1 INCONET Autonomous System LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 319 0 1 ImpSat 7303 234 0 1 Telecom Argentina Stet-France 8151 224 0 1 UniNet S.A. de C.V. 11172 177 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 86 0 1 Integrated Systems 6147 83 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 56 0 1 Mega Cable S.A. de C.V. 4926 54 0 1 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1386 1385 AT&T 1221 1157 1156 Telstra Pty Ltd 1239 908 907 Sprint 3908 877 876 Supernet, Inc. 702 726 725 UUNET - Commercial IP service 4323 624 623 Time Warner Communications, I 6197 571 570 BellSouth Network Solutions, 7843 548 547 Adelphia Corp. 852 516 515 Telus Advanced Communications 209 514 513 Qwest 6198 514 513 BellSouth Network Solutions, 20115 480 479 Charter Communications 3356 475 474 Level 3 Communications, LLC 705 465 464 UUNET Technologies, Inc. 7132 413 412 Southwestern Bell Internet Se 690 410 409 Merit Network 4355 390 389 EarthLink, Inc. 2386 377 376 AT&T Data Communications Serv 2907 364 363 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 30004 UNALLOCATED 203.14.8.16/24 7132 Southwestern Bell In 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 /16:2 /17:10 /18:19 /19:9 /20:11 /21:23 /22:29 /23:33 /24:124035 /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 30 155 COMindico Australia 2764 23 333 connect.com.au pty ltd 4755 18 381 Videsh Sanchar Nigam Ltd. Aut 2914 17 291 Verio, Inc. 26256 9 20 ActiveHost Corporation 6316 8 33 StarNet, Inc. 17014 8 13 North Atlantic Internet, Inc. 7474 5 328 Optus Communications Pty Ltd 17113 4 16 Commrail, Inc. 8879 3 15 DTS-Online Autonomous System 5467 2 2 MIPT-NET 27498 2 2 Community WISP, Inc. 702 1 726 UUNET - Commercial IP service 2050 1 16 Sprint Enterprise Information 2830 1 81 UUNET Dual-Homed customers 3325 1 1 Kazan Civil Network AS 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 5651 1 24 The Destek Group, Inc. 6085 1 1 SITA Network Operations Cente Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:16 64:1 140:5 158:1 170:1 192:2 194:1 198:2 199:3 200:1 202:47 203:58388 204:1 206:2 208:5 210:4 212:3 216:4 219:8 220:3 End of report