Routing Table Report 04:00 +10GMT Thu 04 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123949 Prefixes after maximum aggregation: 15852 Unique aggregates announced to Internet: 266 Total ASes present in the Internet Routing Table: 15690 Origin-only ASes present in the Internet Routing Table: 13558 Origin ASes announcing only one prefix: 6218 Transit ASes present in the Internet Routing Table: 2132 Transit-only ASes present in the Internet Routing Table: 78 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: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 616609 Equivalent to 0 /8s, 9 /16s and 104 /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: 154 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22261 Total APNIC prefixes after maximum aggregation: 2046 Prefixes being announced from the APNIC address blocks: 123785 Unique aggregates announced from the APNIC address blocks: 226 APNIC Region origin ASes present in the Internet Routing Table: 1873 APNIC Region origin ASes announcing only one prefix: 550 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: 478369 Equivalent to 0 /8s, 7 /16s and 76 /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: 74326 Total ARIN prefixes after maximum aggregation: 8629 Prefixes being announced from the ARIN address blocks: 76 Unique aggregates announced from the ARIN address blocks: 24 ARIN Region origin ASes present in the Internet Routing Table: 8575 ARIN Region origin ASes announcing only one prefix: 2956 ARIN Region transit ASes present in the Internet Routing Table: 854 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 8704 Equivalent to 0 /8s, 0 /16s and 34 /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: 22091 Total RIPE prefixes after maximum aggregation: 4833 Prefixes being announced from the RIPE address blocks: 22 Unique aggregates announced from the RIPE address blocks: 16 RIPE Region origin ASes present in the Internet Routing Table: 4820 RIPE Region origin ASes announcing only one prefix: 2615 RIPE Region transit ASes present in the Internet Routing Table: 866 Average RIPE Region AS path length visible: 7.5 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 129536 Equivalent to 0 /8s, 1 /16s and 250 /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: 5259 Total LACNIC prefixes after maximum aggregation: 344 Prefixes being announced from the LACNIC address blocks: 5 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 344 LACNIC Region origin ASes announcing only one prefix: 97 LACNIC Region transit ASes present in the Internet Routing Table: 71 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 1156 0 1 Telstra Pty Ltd 4755 391 15 70 Videsh Sanchar Nigam Ltd. Aut 2907 364 0 1 SINET Japan 703 339 0 2 UUNET 7474 327 0 2 Optus Communications Pty Ltd 2764 323 1 20 connect.com.au pty ltd 4134 319 0 1 Data Communications Bureau 17557 303 0 1 Pakistan Telecom 17676 253 0 1 XTAGE CORPORATION 9583 242 0 1 Satyam Infoway Ltd., 3786 237 0 1 DACOM Corporation 4766 223 0 1 Korea Internet Exchange for " 9800 201 0 1 CHINA UNICOM 9443 184 0 3 Primus Telecommunications 9498 179 0 2 BHARTI BT INTERNET LTD. 4538 168 0 1 China Education and Research 9942 156 8 30 COMindico Australia 17642 156 0 3 RequestDSL BGP AS# for Sydney 9929 154 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 1474 0 1 UUNET Technologies, Inc. 7018 1388 0 1 AT&T 3908 911 0 1 Supernet, Inc. 1239 907 0 1 Sprint 4323 628 0 1 Time Warner Communications, I 6197 571 0 1 BellSouth Network Solutions, 7843 554 0 1 Adelphia Corp. 852 516 0 1 Telus Advanced Communications 209 510 0 1 Qwest 6198 498 0 1 BellSouth Network Solutions, 20115 481 0 1 Charter Communications 3356 476 0 1 Level 3 Communications, LLC 705 463 0 1 UUNET Technologies, Inc. 690 411 0 1 Merit Network 4355 390 0 1 EarthLink, Inc. 2386 376 0 1 AT&T Data Communications Serv 7132 376 0 1 Southwestern Bell Internet Se 6347 352 0 1 SAVVIS Communications Corpora 3549 350 0 1 Global Crossing 19029 346 0 1 New Edge Networks RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 722 0 1 UUNET - Commercial IP service 3301 296 0 1 TeliaNet Sweden 3320 266 0 1 Deutsche Telekom AG 8220 246 0 1 COLT Internet - International 1257 238 0 1 SWIPnet Swedish IP Network 680 232 0 1 DFN-IP service G-WiN 3215 211 0 1 France Telecom Transpac 5515 185 0 1 Sonera Solution Autonomous Sy 786 179 0 1 The JANET IP Service 5400 179 0 1 BT Ignite European Backbone 719 171 0 1 LANLINK autonomous system 8708 155 0 1 Romania Data Systems S.A. 3303 143 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 3246 125 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 329 0 1 ImpSat 7303 240 0 1 Telecom Argentina Stet-France 8151 230 0 1 UniNet S.A. de C.V. 11172 188 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 88 0 1 Integrated Systems 6147 80 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 73 0 1 Instituto Costarricense de El 1916 68 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 57 0 1 Mega Cable S.A. de C.V. 4926 56 0 1 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1388 1387 AT&T 1221 1156 1155 Telstra Pty Ltd 3908 911 910 Supernet, Inc. 1239 907 906 Sprint 702 722 721 UUNET - Commercial IP service 4323 628 627 Time Warner Communications, I 6197 571 570 BellSouth Network Solutions, 7843 554 553 Adelphia Corp. 852 516 515 Telus Advanced Communications 209 510 509 Qwest 6198 498 497 BellSouth Network Solutions, 20115 481 480 Charter Communications 3356 476 475 Level 3 Communications, LLC 705 463 462 UUNET Technologies, Inc. 690 411 410 Merit Network 4355 390 389 EarthLink, Inc. 2386 376 375 AT&T Data Communications Serv 7132 376 375 Southwestern Bell Internet Se 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 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 /16:3 /17:10 /18:18 /19:8 /20:8 /21:20 /22:25 /23:30 /24:123801 /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 31 156 COMindico Australia 2764 23 323 connect.com.au pty ltd 4755 18 391 Videsh Sanchar Nigam Ltd. Aut 2914 17 291 Verio, Inc. 14846 14 44 NBC Internet 6316 8 33 StarNet, Inc. 9227 8 13 ONE HUNDRED SERVICES, INC. 16283 6 8 Metropolitan Area Network LOD 7474 5 327 Optus Communications Pty Ltd 18809 5 45 Cable Onda 14185 2 5 Golden Corridor Communication 2561 1 44 Egyptian Universities Network 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 5668 1 214 Century Telephone 6085 1 1 SITA Network Operations Cente 7381 1 15 Sungard Recovery Services, In 14299 1 14 Automatic Data Processing 16838 1 16 VeriSign Inc 17860 1 5 WEBZEN Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:17 63:2 64:6 65:1 66:8 68:1 170:1 192:41 193:2 198:12 199:19 200:3 202:47 203:58063 205:6 206:1 209:15 210:4 212:4 219:8 220:3 End of report