Routing Table Report 04:00 +10GMT Wed 27 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 124179 Prefixes after maximum aggregation: 15779 Unique aggregates announced to Internet: 256 Total ASes present in the Internet Routing Table: 15651 Origin-only ASes present in the Internet Routing Table: 13539 Origin ASes announcing only one prefix: 6213 Transit ASes present in the Internet Routing Table: 2112 Transit-only ASes present in the Internet Routing Table: 73 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: 602529 Equivalent to 0 /8s, 9 /16s and 49 /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: 130 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22170 Total APNIC prefixes after maximum aggregation: 2042 Prefixes being announced from the APNIC address blocks: 124110 Unique aggregates announced from the APNIC address blocks: 227 APNIC Region origin ASes present in the Internet Routing Table: 1867 APNIC Region origin ASes announcing only one prefix: 548 APNIC Region transit ASes present in the Internet Routing Table: 305 Average APNIC Region AS path length visible: 6.1 Max APNIC Region AS path length visible: 21 Number of APNIC addresses announced to Internet: 479393 Equivalent to 0 /8s, 7 /16s and 80 /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: 74721 Total ARIN prefixes after maximum aggregation: 8579 Prefixes being announced from the ARIN address blocks: 37 Unique aggregates announced from the ARIN address blocks: 20 ARIN Region origin ASes present in the Internet Routing Table: 8559 ARIN Region origin ASes announcing only one prefix: 2946 ARIN Region transit ASes present in the Internet Routing Table: 844 Average ARIN Region AS path length visible: 6.7 Max ARIN Region AS path length visible: 36 Number of ARIN addresses announced to Internet: 13568 Equivalent to 0 /8s, 0 /16s and 53 /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: 22066 Total RIPE prefixes after maximum aggregation: 4814 Prefixes being announced from the RIPE address blocks: 15 Unique aggregates announced from the RIPE address blocks: 9 RIPE Region origin ASes present in the Internet Routing Table: 4807 RIPE Region origin ASes announcing only one prefix: 2620 RIPE Region transit ASes present in the Internet Routing Table: 865 Average RIPE Region AS path length visible: 7.4 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 109568 Equivalent to 0 /8s, 1 /16s and 172 /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: 5211 Total LACNIC prefixes after maximum aggregation: 344 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: 344 LACNIC Region origin ASes announcing only one prefix: 99 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 388 15 72 Videsh Sanchar Nigam Ltd. Aut 703 364 0 2 UUNET 2907 364 0 1 SINET Japan 2764 334 1 20 connect.com.au pty ltd 7474 325 0 2 Optus Communications Pty Ltd 4134 320 0 1 Data Communications Bureau 17557 303 0 1 Pakistan Telecom 17676 251 0 1 XTAGE CORPORATION 3786 237 0 1 DACOM Corporation 9583 227 0 1 Satyam Infoway Ltd., 4766 223 0 1 Korea Internet Exchange for " 9800 198 0 1 CHINA UNICOM 9443 182 0 1 Primus Telecommunications 9498 172 0 1 BHARTI BT INTERNET LTD. 4538 168 0 1 China Education and Research 17642 158 0 3 RequestDSL BGP AS# for Sydney 9942 156 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 1475 0 1 UUNET Technologies, Inc. 7018 1373 0 1 AT&T 3908 913 0 1 Supernet, Inc. 1239 904 0 1 Sprint 4323 624 0 1 Time Warner Communications, I 6197 568 0 1 BellSouth Network Solutions, 7843 553 0 1 Adelphia Corp. 852 522 0 1 Telus Advanced Communications 209 517 0 1 Qwest 6198 514 0 1 BellSouth Network Solutions, 705 481 0 1 UUNET Technologies, Inc. 3356 480 0 1 Level 3 Communications, LLC 20115 476 0 1 Charter Communications 7132 411 0 1 Southwestern Bell Internet Se 690 408 0 1 Merit Network 4355 401 0 1 EarthLink, Inc. 2386 374 0 1 AT&T Data Communications Serv 11305 358 0 1 Interland Incorporated 6347 357 0 1 SAVVIS Communications Corpora 3549 347 0 1 Global Crossing RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 732 0 1 UUNET - Commercial IP service 3301 289 0 1 TeliaNet Sweden 3320 262 0 1 Deutsche Telekom AG 8220 243 0 1 COLT Internet - International 1257 241 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 177 0 1 BT Ignite European Backbone 719 173 0 1 LANLINK autonomous system 8708 158 0 1 Romania Data Systems S.A. 3303 142 0 1 Swisscom Ltd 12302 126 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 110 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 317 0 1 ImpSat 7303 236 0 1 Telecom Argentina Stet-France 8151 224 0 1 UniNet S.A. de C.V. 11172 178 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 84 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 55 0 1 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65533 * 7018 1373 1372 AT&T 1221 1151 1150 Telstra Pty Ltd 3908 913 912 Supernet, Inc. 1239 904 903 Sprint 702 732 731 UUNET - Commercial IP service 4323 624 623 Time Warner Communications, I 6197 568 567 BellSouth Network Solutions, 7843 553 552 Adelphia Corp. 852 522 521 Telus Advanced Communications 209 517 516 Qwest 6198 514 513 BellSouth Network Solutions, 705 481 480 UUNET Technologies, Inc. 3356 480 479 Level 3 Communications, LLC 20115 476 475 Charter Communications 7132 411 410 Southwestern Bell Internet Se 690 408 407 Merit Network 4355 401 400 EarthLink, Inc. 2386 374 373 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 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 /16:5 /17:11 /18:17 /19:9 /20:7 /21:23 /22:29 /23:32 /24:124020 /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 23 334 connect.com.au pty ltd 4755 18 388 Videsh Sanchar Nigam Ltd. Aut 2914 17 292 Verio, Inc. 6316 8 33 StarNet, Inc. 14612 7 8 Mainstreet Internet Company 7474 5 325 Optus Communications Pty Ltd 25124 4 4 DATAK Internet Engineering 13700 3 5 Capital Networks Pty Ltd 3908 2 913 Supernet, Inc. 2050 1 16 Sprint Enterprise Information 2553 1 5 Florida State University 4805 1 15 Equant (formerly Global One) 4844 1 2 SuperInternet ACCESS Pte Ltd 6001 1 12 HQ USASC - USANETA 6085 1 1 SITA Network Operations Cente 7381 1 15 Sungard Recovery Services, In 12486 1 16 Teleyemen - YNET Autonomous N 17860 1 5 WEBZEN 18911 1 1 HANDLEMAN COMPANY Number of /24s announced per /8 block (Global) ---------------------------------------------- 57:1 61:16 64:1 144:1 165:1 192:1 195:1 198:1 202:48 203:58386 204:2 205:1 206:3 209:3 210:4 216:3 219:8 220:3 End of report