Routing Table Report 04:00 +10GMT Sat 16 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 122162 Prefixes after maximum aggregation: 15446 Unique aggregates announced to Internet: 220 Total ASes present in the Internet Routing Table: 15349 Origin-only ASes present in the Internet Routing Table: 13262 Origin ASes announcing only one prefix: 6060 Transit ASes present in the Internet Routing Table: 2087 Transit-only ASes present in the Internet Routing Table: 68 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: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 0 Number of addresses announced to Internet: 584865 Equivalent to 0 /8s, 8 /16s and 236 /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: 114 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22042 Total APNIC prefixes after maximum aggregation: 1989 Prefixes being announced from the APNIC address blocks: 122045 Unique aggregates announced from the APNIC address blocks: 176 APNIC Region origin ASes present in the Internet Routing Table: 1860 APNIC Region origin ASes announcing only one prefix: 537 APNIC Region transit ASes present in the Internet Routing Table: 311 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 465313 Equivalent to 0 /8s, 7 /16s and 25 /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: 72974 Total ARIN prefixes after maximum aggregation: 8330 Prefixes being announced from the ARIN address blocks: 64 Unique aggregates announced from the ARIN address blocks: 35 ARIN Region origin ASes present in the Internet Routing Table: 8300 ARIN Region origin ASes announcing only one prefix: 2819 ARIN Region transit ASes present in the Internet Routing Table: 829 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 20480 Equivalent to 0 /8s, 0 /16s and 80 /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: 21899 Total RIPE prefixes after maximum aggregation: 4784 Prefixes being announced from the RIPE address blocks: 12 Unique aggregates announced from the RIPE address blocks: 9 RIPE Region origin ASes present in the Internet Routing Table: 4778 RIPE Region origin ASes announcing only one prefix: 2609 RIPE Region transit ASes present in the Internet Routing Table: 851 Average RIPE Region AS path length visible: 7.4 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 99072 Equivalent to 0 /8s, 1 /16s and 131 /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: 5236 Total LACNIC prefixes after maximum aggregation: 343 Prefixes being announced from the LACNIC address blocks: 3 Unique aggregates announced from the LACNIC address blocks: 0 LACNIC Region origin ASes present in the Internet Routing Table: 342 LACNIC Region origin ASes announcing only one prefix: 95 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 8.0 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 1151 0 1 Telstra Pty Ltd 4755 386 15 71 Videsh Sanchar Nigam Ltd. Aut 2907 372 0 1 SINET Japan 703 339 0 2 UUNET 2764 336 1 20 connect.com.au pty ltd 7474 323 0 2 Optus Communications Pty Ltd 4134 321 0 1 Data Communications Bureau 17557 303 0 1 Pakistan Telecom 17676 251 0 1 XTAGE CORPORATION 9583 241 0 1 Satyam Infoway Ltd., 3786 239 0 1 DACOM Corporation 4766 223 0 1 Korea Internet Exchange for " 9800 198 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 166 0 1 BHARTI BT INTERNET LTD. 4538 164 0 1 China Education and Research 9929 151 0 1 China Netcom Corp. 4739 143 0 5 Commerical Internet eXchange 9238 140 0 1 TATA ISP 4716 131 0 1 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1388 0 1 UUNET Technologies, Inc. 7018 1367 0 1 AT&T 3908 910 0 1 Supernet, Inc. 1239 881 0 1 Sprint 4323 621 0 1 Time Warner Communications, I 7843 568 0 1 Adelphia Corp. 6197 567 0 1 BellSouth Network Solutions, 209 516 0 1 Qwest 852 511 0 1 Telus Advanced Communications 6198 509 0 1 BellSouth Network Solutions, 705 475 0 1 UUNET Technologies, Inc. 20115 475 0 1 Charter Communications 3356 466 0 1 Level 3 Communications, LLC 7132 410 0 1 Southwestern Bell Internet Se 4355 406 0 1 EarthLink, Inc. 690 390 0 1 Merit Network 2386 373 0 1 AT&T Data Communications Serv 11305 358 0 1 Interland Incorporated 6347 351 0 1 SAVVIS Communications Corpora 19029 347 0 1 New Edge Networks RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 731 0 1 UUNET - Commercial IP service 3301 291 0 1 TeliaNet Sweden 3320 259 0 1 Deutsche Telekom AG 8220 245 0 1 COLT Internet - International 1257 238 0 1 SWIPnet Swedish IP Network 680 232 0 1 DFN-IP service G-WiN 3215 214 0 1 France Telecom Transpac 5515 185 0 1 Sonera Solution Autonomous Sy 786 179 0 1 The JANET IP Service 719 174 0 1 LANLINK autonomous system 5400 165 0 1 BT Ignite European Backbone 8708 155 0 1 Romania Data Systems S.A. 3303 139 0 1 Swisscom Ltd 12302 127 0 1 MobiFon S.A. 3246 122 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 298 0 1 ImpSat 7303 237 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 152 0 1 NSS, S.A. 6503 131 0 1 AVANTEL, S.A. 10620 127 0 1 TVCABLE BOGOTA 11992 87 0 1 Integrated Systems 6147 84 0 1 Telefonica Del Peru 8065 80 0 1 Empresas Publicas de Medellin 6535 75 0 1 Chilesat Servicios Empresari 15311 74 0 1 Telefonica Empresas 11830 73 0 1 Instituto Costarricense de El 1916 72 0 1 Fundacao de Amparo a Pesquisa 4270 68 0 1 Red de Interconexion Universi 7927 66 0 1 Global One Venezuela 7080 64 0 1 Electronica y Comunicaciones 7984 59 0 1 Global One Colombia 13999 59 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 1367 1366 AT&T 1221 1151 1150 Telstra Pty Ltd 3908 910 909 Supernet, Inc. 1239 881 880 Sprint 702 731 730 UUNET - Commercial IP service 4323 621 620 Time Warner Communications, I 7843 568 567 Adelphia Corp. 6197 567 566 BellSouth Network Solutions, 209 516 515 Qwest 852 511 510 Telus Advanced Communications 6198 509 508 BellSouth Network Solutions, 705 475 474 UUNET Technologies, Inc. 20115 475 474 Charter Communications 3356 466 465 Level 3 Communications, LLC 7132 410 409 Southwestern Bell Internet Se 4355 406 405 EarthLink, Inc. 690 390 389 Merit Network 2386 373 372 AT&T Data Communications Serv 2907 372 371 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 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 /17:9 /18:16 /19:15 /20:7 /21:14 /22:15 /23:15 /24:122042 /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 2764 23 336 connect.com.au pty ltd 4755 18 386 Videsh Sanchar Nigam Ltd. Aut 2914 17 294 Verio, Inc. 14846 12 44 NBC Internet 19981 9 9 Heller Financial Inc. 6316 8 34 StarNet, Inc. 7474 5 323 Optus Communications Pty Ltd 9015 3 13 DNTIS Autonomous System 2050 1 16 Sprint Enterprise Information 3768 1 25 Dialog Information Services, 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 6085 1 1 SITA Network Operations Cente 7013 1 5 Health Sciences Libraries Con 7381 1 16 Sungard Recovery Services, In 12984 1 1 ISP IC NENSI Autonomous Syste 13618 1 7 Carolina Internet 14390 1 97 Core Communications, Inc 15234 1 2 Bertelsmann mediaSystems 16441 1 27 Intellispace Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:16 63:1 64:2 65:1 66:1 167:2 192:14 193:1 198:14 199:8 202:46 203:56352 205:5 206:3 207:2 209:21 210:4 216:1 217:3 219:8 End of report