Routing Table Report 04:00 +10GMT Tue 19 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123396 Prefixes after maximum aggregation: 15769 Unique aggregates announced to Internet: 257 Total ASes present in the Internet Routing Table: 15613 Origin-only ASes present in the Internet Routing Table: 13491 Origin ASes announcing only one prefix: 6199 Transit ASes present in the Internet Routing Table: 2122 Transit-only ASes present in the Internet Routing Table: 70 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: 664737 Equivalent to 0 /8s, 10 /16s and 36 /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: 112 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21867 Total APNIC prefixes after maximum aggregation: 2003 Prefixes being announced from the APNIC address blocks: 123221 Unique aggregates announced from the APNIC address blocks: 192 APNIC Region origin ASes present in the Internet Routing Table: 1860 APNIC Region origin ASes announcing only one prefix: 539 APNIC Region transit ASes present in the Internet Routing Table: 314 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 477345 Equivalent to 0 /8s, 7 /16s and 72 /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: 74284 Total ARIN prefixes after maximum aggregation: 8629 Prefixes being announced from the ARIN address blocks: 96 Unique aggregates announced from the ARIN address blocks: 56 ARIN Region origin ASes present in the Internet Routing Table: 8551 ARIN Region origin ASes announcing only one prefix: 2948 ARIN Region transit ASes present in the Internet Routing Table: 850 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 70400 Equivalent to 0 /8s, 1 /16s and 19 /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: 21989 Total RIPE prefixes after maximum aggregation: 4792 Prefixes being announced from the RIPE address blocks: 11 Unique aggregates announced from the RIPE address blocks: 8 RIPE Region origin ASes present in the Internet Routing Table: 4786 RIPE Region origin ASes announcing only one prefix: 2613 RIPE Region transit ASes present in the Internet Routing Table: 859 Average RIPE Region AS path length visible: 7.5 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 116736 Equivalent to 0 /8s, 1 /16s and 200 /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: 5245 Total LACNIC prefixes after maximum aggregation: 345 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: 345 LACNIC Region origin ASes announcing only one prefix: 99 LACNIC Region transit ASes present in the Internet Routing Table: 73 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 1152 0 1 Telstra Pty Ltd 4755 385 15 70 Videsh Sanchar Nigam Ltd. Aut 2907 365 0 1 SINET Japan 703 338 0 5 UUNET 2764 336 1 20 connect.com.au pty ltd 7474 323 0 2 Optus Communications Pty Ltd 4134 320 0 1 Data Communications Bureau 17557 300 0 1 Pakistan Telecom 17676 251 0 1 XTAGE CORPORATION 9583 242 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 4538 166 0 1 China Education and Research 17642 154 0 3 RequestDSL BGP AS# for Sydney 9929 151 2 2 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 1473 0 2 UUNET Technologies, Inc. 7018 1389 0 1 AT&T 3908 911 0 1 Supernet, Inc. 1239 899 0 2 Sprint 4323 623 0 1 Time Warner Communications, I 6197 567 0 1 BellSouth Network Solutions, 7843 566 0 1 Adelphia Corp. 852 522 0 1 Telus Advanced Communications 209 518 10 4 Qwest 6198 512 0 1 BellSouth Network Solutions, 705 482 0 1 UUNET Technologies, Inc. 20115 477 0 1 Charter Communications 3356 470 0 1 Level 3 Communications, LLC 7132 410 0 1 Southwestern Bell Internet Se 690 408 0 1 Merit Network 4355 406 0 1 EarthLink, Inc. 2386 375 0 1 AT&T Data Communications Serv 11305 358 0 1 Interland Incorporated 6347 356 0 1 SAVVIS Communications Corpora 19029 348 0 1 New Edge Networks RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 732 0 1 UUNET - Commercial IP service 3301 290 0 1 TeliaNet Sweden 3320 259 0 1 Deutsche Telekom AG 8220 247 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 173 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 121 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 311 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 11830 74 0 1 Instituto Costarricense de El 15311 74 0 1 Telefonica Empresas 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 57 0 1 Mega Cable S.A. de C.V. 4926 55 0 1 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1389 1388 AT&T 1221 1152 1151 Telstra Pty Ltd 3908 911 910 Supernet, Inc. 1239 899 897 Sprint 702 732 731 UUNET - Commercial IP service 4323 623 622 Time Warner Communications, I 6197 567 566 BellSouth Network Solutions, 7843 566 565 Adelphia Corp. 852 522 521 Telus Advanced Communications 209 518 514 Qwest 6198 512 511 BellSouth Network Solutions, 705 482 481 UUNET Technologies, Inc. 20115 477 476 Charter Communications 3356 470 469 Level 3 Communications, LLC 7132 410 409 Southwestern Bell Internet Se 690 408 407 Merit Network 4355 406 405 EarthLink, Inc. 2386 375 374 AT&T Data Communications Serv 2907 365 364 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 /16:7 /17:9 /18:17 /19:19 /20:10 /21:17 /22:20 /23:17 /24:123254 /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 18 385 Videsh Sanchar Nigam Ltd. Aut 2914 17 293 Verio, Inc. 14846 14 44 NBC Internet 19981 9 9 Heller Financial Inc. 6316 8 34 StarNet, Inc. 7474 5 323 Optus Communications Pty Ltd 14361 2 4 HopOne Internet Corporation 701 1 1473 UUNET Technologies, Inc. 2050 1 16 Sprint Enterprise Information 2199 1 9 FR-DOM-MARTINIQUE 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 6085 1 1 SITA Network Operations Cente 6382 1 124 bellsouth.net, inc. 7381 1 16 Sungard Recovery Services, In 11118 1 1 Comteck 15141 1 4 Bausch & Lomb 16441 1 27 Intellispace Inc. 17447 1 40 Net4India Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:16 64:2 65:1 68:1 192:41 193:1 196:1 198:11 199:21 202:82 203:57486 204:9 205:6 206:1 207:1 208:1 209:23 210:4 214:1 219:8 End of report