Routing Table Report 04:00 +10GMT Thu 23 Oct, 2003 Analysis Summary ---------------- BGP routing table entries examined: 126817 Prefixes after maximum aggregation: 16021 Unique aggregates announced to Internet: 201 Total ASes present in the Internet Routing Table: 15962 Origin-only ASes present in the Internet Routing Table: 13831 Origin ASes announcing only one prefix: 6341 Transit ASes present in the Internet Routing Table: 2131 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 6.6 Max AS path length visible: 30 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 622081 Equivalent to 0 /8s, 9 /16s and 126 /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: 728 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22760 Total APNIC prefixes after maximum aggregation: 2023 Prefixes being announced from the APNIC address blocks: 126067 Unique aggregates announced from the APNIC address blocks: 157 APNIC Region origin ASes present in the Internet Routing Table: 1909 APNIC Region origin ASes announcing only one prefix: 563 APNIC Region transit ASes present in the Internet Routing Table: 313 Average APNIC Region AS path length visible: 6.2 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 500481 Equivalent to 0 /8s, 7 /16s and 163 /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: 75375 Total ARIN prefixes after maximum aggregation: 8686 Prefixes being announced from the ARIN address blocks: 705 Unique aggregates announced from the ARIN address blocks: 32 ARIN Region origin ASes present in the Internet Routing Table: 8678 ARIN Region origin ASes announcing only one prefix: 3010 ARIN Region transit ASes present in the Internet Routing Table: 843 Average ARIN Region AS path length visible: 6.5 Max ARIN Region AS path length visible: 26 Number of ARIN addresses announced to Internet: 21760 Equivalent to 0 /8s, 0 /16s and 85 /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, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 22643 Total RIPE prefixes after maximum aggregation: 4943 Prefixes being announced from the RIPE address blocks: 15 Unique aggregates announced from the RIPE address blocks: 12 RIPE Region origin ASes present in the Internet Routing Table: 4936 RIPE Region origin ASes announcing only one prefix: 2663 RIPE Region transit ASes present in the Internet Routing Table: 872 Average RIPE Region AS path length visible: 7.2 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 99840 Equivalent to 0 /8s, 1 /16s and 134 /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 30720 - 31743 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: 5386 Total LACNIC prefixes after maximum aggregation: 352 Prefixes being announced from the LACNIC address blocks: 6 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 350 LACNIC Region origin ASes announcing only one prefix: 103 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 7.1 Max LACNIC Region AS path length visible: 18 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 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 641 Total AfriNIC prefixes after maximum aggregation: 17 Prefixes being announced from the AfriNIC address blocks: 0 Unique aggregates announced from the AfriNIC address blocks: 0 AfriNIC Region origin ASes present in the Internet Routing Table: 17 AfriNIC Region origin ASes announcing only one prefix: 2 AfriNIC Region transit ASes present in the Internet Routing Table: 4 Average AfriNIC Region AS path length visible: 6.8 Max AfriNIC Region AS path length visible: 20 Number of AfriNIC addresses announced to Internet: 0 Equivalent to 0 /8s, 0 /16s and 0 /24s Percentage of available AfriNIC address space announced: 0.0 AfriNIC AS Blocks AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1132 0 3 Telstra Pty Ltd 2907 362 0 1 SINET Japan 4134 360 0 1 Data Communications Bureau 4755 352 8 59 Videsh Sanchar Nigam Ltd. Aut 703 332 0 2 UUNET 7474 331 0 2 Optus Communications Pty Ltd 2764 299 0 1 connect.com.au pty ltd 17557 286 0 1 Pakistan Telecom 17676 271 0 1 XTAGE CORPORATION 9583 262 0 1 Satyam Infoway Ltd., 4766 238 0 1 Korea Internet Exchange for " 3786 233 0 1 DACOM Corporation 4538 214 0 1 China Education and Research 9800 203 0 1 CHINA UNICOM 9443 188 0 1 Primus Telecommunications 9498 186 0 1 BHARTI BT INTERNET LTD. 9929 170 0 1 China Netcom Corp. 9942 160 0 4 COMindico Australia 17642 157 0 3 RequestDSL BGP AS# for Sydney 4739 143 0 5 Commerical Internet eXchange ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1428 0 1 UUNET Technologies, Inc. 7018 1353 0 1 AT&T 1239 932 0 1 Sprint 3908 878 0 1 Supernet, Inc. 18566 713 0 1 Covad Communications 4323 685 0 1 Time Warner Communications, I 6197 639 0 1 BellSouth Network Solutions, 209 616 0 1 Qwest 3356 603 0 1 Level 3 Communications, LLC 6198 569 0 1 BellSouth Network Solutions, 20115 542 0 1 Charter Communications 7843 531 0 1 Adelphia Corp. 852 517 0 1 Telus Advanced Communications 690 410 0 1 Merit Network 705 395 0 1 UUNET Technologies, Inc. 4355 391 0 1 EarthLink, Inc. 2386 379 0 1 AT&T Data Communications Serv 6347 346 0 1 SAVVIS Communications Corpora 19029 338 0 1 New Edge Networks 3561 335 0 1 Cable & Wireless USA RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 705 0 1 UUNET - Commercial IP service 3301 299 0 1 TeliaNet Sweden 3320 275 0 1 Deutsche Telekom AG 8220 260 0 1 COLT Internet - International 1257 238 0 1 SWIPnet Swedish IP Network 680 233 0 1 DFN-IP service G-WiN 13083 215 0 1 Mannesmann Datenverarbeitung 5400 185 0 1 BT Ignite European Backbone 5515 185 0 1 Sonera Solution Autonomous Sy 786 175 0 1 The JANET IP Service 3215 174 0 1 France Telecom Transpac 719 173 0 1 LANLINK autonomous system 8708 160 0 1 Romania Data Systems S.A. 3303 147 0 1 Swisscom Ltd 25186 134 0 1 France Telecom Transpac's Tra 3246 126 0 1 Song Networks 12302 126 0 1 MobiFon S.A. 3269 120 0 1 TELECOM ITALIA 2856 118 0 1 BTnet UK Regional network 3352 99 0 1 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 337 0 1 ImpSat 8151 236 0 1 UniNet S.A. de C.V. 7303 214 0 1 Telecom Argentina Stet-France 11172 191 0 1 Servicios Alestra S.A de C.V 16814 156 0 1 NSS, S.A. 6505 141 0 1 Global One Communicaoes Ltda 6503 126 0 1 AVANTEL, S.A. 10620 123 0 1 TVCABLE BOGOTA 6147 107 0 1 Telefonica Del Peru 11992 85 0 1 Integrated Systems 8065 84 0 1 Empresas Publicas de Medellin 6535 75 0 1 Chilesat Servicios Empresari 11830 75 0 1 Instituto Costarricense de El 15311 75 0 1 Telefonica Empresas 4270 68 0 1 Red de Interconexion Universi 11311 67 0 1 Sinectis S.A. 7080 64 0 1 Electronica y Comunicaciones 1916 59 0 1 Fundacao de Amparo a Pesquisa 4926 57 0 1 Telintar S.A. 5639 57 0 1 Telecommunications Services o Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1353 1352 AT&T 1221 1132 1129 Telstra Pty Ltd 1239 932 931 Sprint 3908 878 877 Supernet, Inc. 18566 713 712 Covad Communications 702 705 704 UUNET - Commercial IP service 4323 685 684 Time Warner Communications, I 6197 639 638 BellSouth Network Solutions, 209 616 615 Qwest 3356 603 602 Level 3 Communications, LLC 6198 569 568 BellSouth Network Solutions, 20115 542 541 Charter Communications 7843 531 530 Adelphia Corp. 852 517 516 Telus Advanced Communications 690 410 409 Merit Network 705 395 394 UUNET Technologies, Inc. 4355 391 390 EarthLink, Inc. 2386 379 378 AT&T Data Communications Serv 2907 362 361 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 65503 PRIVATE 203.14.8.16/24 4775 Telecom Carrier / 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 /17:10 /18:17 /19:8 /20:4 /21:226 /22:12 /23:457 /24:126072 /25:0 /26:0 /27:0 /28:0 /29:0 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 667 713 Covad Communications 2914 17 278 Verio, Inc. 3758 12 42 SingNet 7474 5 331 Optus Communications Pty Ltd 7633 5 129 Software Technology Parks of 8524 5 14 AUCEGYPT Autonomous System 4755 4 352 Videsh Sanchar Nigam Ltd. Aut 7183 4 7 Sallie Mae 5786 2 156 University of Puerto Rico 2561 1 55 Egyptian Universities Network 7381 1 15 Sungard Recovery Services, In 7911 1 17 Williams Communications Group 18101 1 29 Reliance Infocom Ltd Internet 19054 1 1 Penford Corporation 24870 1 1 TKB Autonomous System 29541 1 1 Lviv Local Area Network Number of /24s announced per /8 block (Global) ---------------------------------------------- 61:17 64:2 65:1 69:1 136:2 162:1 164:5 165:1 193:1 195:1 199:2 200:5 202:34 203:60425 204:1 206:8 207:16 208:4 210:3 213:5 217:1 End of report