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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Oct 10 20:07:47 CEST 2003
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats at lists.apnic.net If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 11 Oct, 2003 Analysis Summary ---------------- BGP routing table entries examined: 129726 Prefixes after maximum aggregation: 80542 Unique aggregates announced to Internet: 62134 Total ASes present in the Internet Routing Table: 15968 Origin-only ASes present in the Internet Routing Table: 13854 Origin ASes announcing only one prefix: 6293 Transit ASes present in the Internet Routing Table: 2114 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 18 Illegal AS announcements present in the Routing Table: 5 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1245930024 Equivalent to 74 /8s, 67 /16s and 98 /24s Percentage of available address space announced: 33.6 Percentage of allocated address space announced: 60.1 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 57785 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22883 Total APNIC prefixes after maximum aggregation: 12872 Prefixes being announced from the APNIC address blocks: 21290 Unique aggregates announced from the APNIC address blocks: 12389 APNIC Region origin ASes present in the Internet Routing Table: 1909 APNIC Region origin ASes announcing only one prefix: 545 APNIC Region transit ASes present in the Internet Routing Table: 305 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 123575296 Equivalent to 7 /8s, 93 /16s and 156 /24s Percentage of available APNIC address space announced: 66.6 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: 78328 Total ARIN prefixes after maximum aggregation: 48714 Prefixes being announced from the ARIN address blocks: 55870 Unique aggregates announced from the ARIN address blocks: 17408 ARIN Region origin ASes present in the Internet Routing Table: 8728 ARIN Region origin ASes announcing only one prefix: 3005 ARIN Region transit ASes present in the Internet Routing Table: 849 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 197874976 Equivalent to 11 /8s, 203 /16s and 85 /24s Percentage of available ARIN address space announced: 73.7 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: 22799 Total RIPE prefixes after maximum aggregation: 16686 Prefixes being announced from the RIPE address blocks: 19323 Unique aggregates announced from the RIPE address blocks: 13006 RIPE Region origin ASes present in the Internet Routing Table: 4907 RIPE Region origin ASes announcing only one prefix: 2636 RIPE Region transit ASes present in the Internet Routing Table: 858 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 137068352 Equivalent to 8 /8s, 43 /16s and 127 /24s Percentage of available RIPE address space announced: 74.3 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: 5712 Total LACNIC prefixes after maximum aggregation: 2270 Prefixes being announced from the LACNIC address blocks: 5189 Unique aggregates announced from the LACNIC address blocks: 3216 LACNIC Region origin ASes present in the Internet Routing Table: 358 LACNIC Region origin ASes announcing only one prefix: 107 LACNIC Region transit ASes present in the Internet Routing Table: 75 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 14 Number of LACNIC addresses announced to Internet: 13352704 Equivalent to 0 /8s, 203 /16s and 191 /24s Percentage of available LACNIC address space announced: 39.8 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 972 1110 689 Telstra Pty Ltd 4755 394 134 71 Videsh Sanchar Nigam Ltd. Aut 2907 368 1879 345 SINET Japan 4134 364 2223 105 Data Communications Bureau 703 336 372 267 UUNET 2764 297 290 260 connect.com.au pty ltd 17557 297 25 150 Pakistan Telecom 17676 272 4012 33 XTAGE CORPORATION 7474 262 305 208 Optus Communications Pty Ltd 4766 241 2462 176 Korea Internet Exchange for " 9583 234 43 9 Satyam Infoway Ltd., 3786 233 773 203 DACOM Corporation 4538 209 1714 21 China Education and Research 9800 203 332 52 CHINA UNICOM 9942 194 69 119 COMindico Australia 9929 190 160 36 China Netcom Corp. 9498 185 20 18 BHARTI BT INTERNET LTD. 9443 183 62 82 Primus Telecommunications 17642 154 40 116 RequestDSL BGP AS# for Sydney 4739 143 58 132 Commerical Internet eXchange ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1458 8702 1012 UUNET Technologies, Inc. 7018 1398 7127 974 AT&T 6198 1216 330 195 BellSouth Network Solutions, 6197 994 442 247 BellSouth Network Solutions, 3908 945 1577 511 Supernet, Inc. 1239 923 3003 668 Sprint 18566 708 176 8 Covad Communications 4323 677 575 196 Time Warner Communications, I 3356 590 10828 493 Level 3 Communications, LLC 7843 532 473 138 Adelphia Corp. 852 517 1123 411 Telus Advanced Communications 209 506 2146 289 Qwest 7066 506 206 267 Virginia Polytechnic Institut 20115 473 206 288 Charter Communications 690 411 59 276 Merit Network 705 401 184 245 UUNET Technologies, Inc. 4355 393 332 108 EarthLink, Inc. 2386 383 508 200 AT&T Data Communications Serv 376 359 359 115 Reseau Interordinateurs Scien 6347 348 381 80 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 713 2101 592 UUNET - Commercial IP service 3301 298 1169 286 TeliaNet Sweden 3320 277 2005 237 Deutsche Telekom AG 8220 257 435 246 COLT Internet - International 1257 243 438 191 SWIPnet Swedish IP Network 680 232 2054 229 DFN-IP service G-WiN 719 193 307 123 LANLINK autonomous system 3215 193 721 100 France Telecom Transpac 5400 187 173 135 BT Ignite European Backbone 5515 185 778 147 Sonera Solution Autonomous Sy 786 179 1874 179 The JANET IP Service 8708 158 111 154 Romania Data Systems S.A. 3303 149 556 142 Swisscom Ltd 3246 128 376 126 Song Networks 12302 127 18 34 MobiFon S.A. 3269 119 853 65 TELECOM ITALIA 2856 114 1293 105 BTnet UK Regional network 25186 113 160 77 France Telecom Transpac's Tra 2647 100 4225 48 SITA 3352 98 824 34 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 339 103 98 ImpSat 7303 328 41 47 Telecom Argentina Stet-France 8151 235 367 123 UniNet S.A. de C.V. 11172 184 77 42 Servicios Alestra S.A de C.V 16814 156 10 5 NSS, S.A. 6503 130 205 94 AVANTEL, S.A. 10620 123 8 26 TVCABLE BOGOTA 10834 110 82 35 ADVANCE TELECOMUNICACIONES S. 11340 104 3 30 Red Universitaria Nacional 6147 86 70 19 Telefonica Del Peru 11992 86 24 30 Integrated Systems 8065 83 8 17 Empresas Publicas de Medellin 6505 82 84 70 Global One Communicaoes Ltda 15311 77 16 39 Telefonica Empresas 6535 75 5 18 Chilesat Servicios Empresari 11830 74 22 25 Instituto Costarricense de El 4270 68 18 9 Red de Interconexion Universi 7927 66 6 40 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 1916 60 266 40 Fundacao de Amparo a Pesquisa Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6198 1216 1021 BellSouth Network Solutions, 6197 994 747 BellSouth Network Solutions, 18566 708 700 Covad Communications 4323 677 481 Time Warner Communications, I 3908 945 434 Supernet, Inc. 7018 1398 424 AT&T 7843 532 394 Adelphia Corp. 4755 394 323 Videsh Sanchar Nigam Ltd. Aut 5668 308 292 Century Telephone 27364 314 291 Armstrong Cable Services 4355 393 285 EarthLink, Inc. 22909 299 284 Comcast Cable Corporation 1221 972 283 Telstra Pty Ltd 7303 328 281 Telecom Argentina Stet-France 6347 348 268 SAVVIS Communications Corpora 4134 364 259 Data Communications Bureau 1239 923 255 Sprint 22773 288 252 Cox Communications, Inc. Atla 376 359 244 Reseau Interordinateurs Scien 6140 339 241 ImpSat List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65158 PRIVATE 24.208.192.0/19 12262 RoadRunner-Cincinatt 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 65400 PRIVATE 149.165.240.0/21 11537 University Corporati 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.153.136.0/21 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:4 /10:6 /11:12 /12:55 /13:98 /14:268 /15:469 /16:7430 /17:1776 /18:3188 /19:8493 /20:8917 /21:6558 /22:9387 /23:10785 /24:71539 /25:168 /26:226 /27:163 /28:40 /29:24 /30:58 /31:0 /32:43 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6198 1092 1216 BellSouth Network Solutions, 6197 854 994 BellSouth Network Solutions, 18566 702 708 Covad Communications 3908 602 945 Supernet, Inc. 7018 501 1398 AT&T 701 441 1458 UUNET Technologies, Inc. 702 429 713 UUNET - Commercial IP service 7066 400 506 Virginia Polytechnic Institut 690 371 411 Merit Network 1239 327 923 Sprint 20115 316 473 Charter Communications 27364 308 314 Armstrong Cable Services 3356 283 590 Level 3 Communications, LLC 5668 274 308 Century Telephone 25844 243 243 Skadden, Arps, Slate, Meagher 3320 219 277 Deutsche Telekom AG 4355 215 393 EarthLink, Inc. 7843 212 532 Adelphia Corp. 209 203 506 Qwest 14824 199 226 NewSouth Communications Corp. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:710 13:1 15:6 16:1 17:3 20:6 24:821 25:1 32:103 38:50 40:23 43:1 44:2 55:1 57:14 61:329 62:435 63:1877 64:1812 65:2121 66:2289 67:437 68:855 69:279 80:419 81:174 82:17 128:148 129:153 130:64 131:83 132:43 134:166 135:10 136:178 137:120 138:131 139:50 140:164 141:137 142:101 143:48 144:88 145:21 146:279 147:68 148:302 149:78 150:121 151:66 152:212 153:58 154:7 155:131 156:58 157:54 158:140 159:143 160:45 161:69 162:362 163:68 164:317 165:152 166:100 167:304 168:176 169:96 170:316 171:9 192:5437 193:2431 194:1994 195:1183 196:480 198:3581 199:2848 200:3204 202:4047 203:5300 204:2997 205:2056 206:2294 207:2514 208:2633 209:2784 210:918 211:379 212:943 213:944 214:15 215:22 216:3277 217:754 218:109 219:41 220:115 221:13 222:1 End of report
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