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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 5 20:07:43 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 06 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127889 Prefixes after maximum aggregation: 80070 Unique aggregates announced to Internet: 61705 Total ASes present in the Internet Routing Table: 15765 Origin-only ASes present in the Internet Routing Table: 13660 Origin ASes announcing only one prefix: 6213 Transit ASes present in the Internet Routing Table: 2105 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 5.2 Max AS path length visible: 27 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: 15 Number of addresses announced to Internet: 1241725984 Equivalent to 74 /8s, 3 /16s and 60 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 59.9 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56833 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22378 Total APNIC prefixes after maximum aggregation: 12697 Prefixes being announced from the APNIC address blocks: 20798 Unique aggregates announced from the APNIC address blocks: 12420 APNIC Region origin ASes present in the Internet Routing Table: 1888 APNIC Region origin ASes announcing only one prefix: 540 APNIC Region transit ASes present in the Internet Routing Table: 308 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 121384448 Equivalent to 7 /8s, 60 /16s and 46 /24s Percentage of available APNIC address space announced: 65.4 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: 77717 Total ARIN prefixes after maximum aggregation: 48634 Prefixes being announced from the ARIN address blocks: 55389 Unique aggregates announced from the ARIN address blocks: 17345 ARIN Region origin ASes present in the Internet Routing Table: 8627 ARIN Region origin ASes announcing only one prefix: 2954 ARIN Region transit ASes present in the Internet Routing Table: 845 Average ARIN Region AS path length visible: 5.0 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 196641824 Equivalent to 11 /8s, 184 /16s and 132 /24s Percentage of available ARIN address space announced: 73.3 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: 22370 Total RIPE prefixes after maximum aggregation: 16438 Prefixes being announced from the RIPE address blocks: 18907 Unique aggregates announced from the RIPE address blocks: 12774 RIPE Region origin ASes present in the Internet Routing Table: 4831 RIPE Region origin ASes announcing only one prefix: 2622 RIPE Region transit ASes present in the Internet Routing Table: 852 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 135755584 Equivalent to 8 /8s, 23 /16s and 119 /24s Percentage of available RIPE address space announced: 73.6 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: 5422 Total LACNIC prefixes after maximum aggregation: 2301 Prefixes being announced from the LACNIC address blocks: 4895 Unique aggregates announced from the LACNIC address blocks: 3147 LACNIC Region origin ASes present in the Internet Routing Table: 346 LACNIC Region origin ASes announcing only one prefix: 97 LACNIC Region transit ASes present in the Internet Routing Table: 69 Average LACNIC Region AS path length visible: 5.6 Max LACNIC Region AS path length visible: 20 Number of LACNIC addresses announced to Internet: 13127680 Equivalent to 0 /8s, 200 /16s and 80 /24s Percentage of available LACNIC address space announced: 39.1 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 984 1125 697 Telstra Pty Ltd 4755 403 135 73 Videsh Sanchar Nigam Ltd. Aut 2907 377 1912 351 SINET Japan 703 339 373 269 UUNET 4134 330 2220 111 Data Communications Bureau 17557 303 22 134 Pakistan Telecom 2764 288 322 257 connect.com.au pty ltd 7474 264 291 205 Optus Communications Pty Ltd 17676 256 3942 20 XTAGE CORPORATION 9583 244 37 20 Satyam Infoway Ltd., 3786 237 773 203 DACOM Corporation 4766 229 2461 171 Korea Internet Exchange for " 9800 202 332 51 CHINA UNICOM 9443 186 58 82 Primus Telecommunications 9498 182 16 32 BHARTI BT INTERNET LTD. 9929 172 157 35 China Netcom Corp. 4538 170 1538 21 China Education and Research 9942 156 69 100 COMindico Australia 17642 155 41 116 RequestDSL BGP AS# for Sydney 9238 140 9 21 TATA ISP ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1482 8768 1049 UUNET Technologies, Inc. 7018 1384 7123 971 AT&T 3908 926 1573 492 Supernet, Inc. 1239 906 3030 653 Sprint 189 674 451 334 Genuity 18566 674 160 8 Covad Communications 4323 633 552 181 Time Warner Communications, I 6197 612 395 270 BellSouth Network Solutions, 7843 553 426 167 Adelphia Corp. 852 516 1123 410 Telus Advanced Communications 209 505 2129 294 Qwest 6198 496 277 197 BellSouth Network Solutions, 7066 492 205 263 Virginia Polytechnic Institut 20115 483 203 292 Charter Communications 3356 476 10675 395 Level 3 Communications, LLC 1 463 1054 296 GENUITY 705 418 185 257 UUNET Technologies, Inc. 690 411 59 276 Merit Network 4355 393 340 111 EarthLink, Inc. 10753 390 80 195 XCOM Technologies, INC. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 720 2121 598 UUNET - Commercial IP service 3301 295 1168 282 TeliaNet Sweden 3320 269 1989 229 Deutsche Telekom AG 8220 246 431 235 COLT Internet - International 1257 245 374 186 SWIPnet Swedish IP Network 680 232 2054 229 DFN-IP service G-WiN 3215 212 736 118 France Telecom Transpac 719 193 307 123 LANLINK autonomous system 5515 185 779 148 Sonera Solution Autonomous Sy 5400 180 175 131 BT Ignite European Backbone 786 178 1858 178 The JANET IP Service 8708 158 111 154 Romania Data Systems S.A. 3303 143 540 140 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 3246 124 376 122 Song Networks 3269 116 819 63 TELECOM ITALIA 2856 113 1295 104 BTnet UK Regional network 3352 104 824 34 Ibernet, Internet Access Netw 2647 101 4129 45 SITA 6746 88 12 75 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 332 103 106 ImpSat 7303 240 39 57 Telecom Argentina Stet-France 8151 230 366 119 UniNet S.A. de C.V. 11172 189 95 45 Servicios Alestra S.A de C.V 16814 151 10 17 NSS, S.A. 6503 132 189 94 AVANTEL, S.A. 10620 127 8 28 TVCABLE BOGOTA 11340 104 3 36 Red Universitaria Nacional 11992 88 8 37 Integrated Systems 6147 85 70 17 Telefonica Del Peru 8065 80 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 75 14 38 Telefonica Empresas 11830 73 21 27 Instituto Costarricense de El 1916 72 305 42 Fundacao de Amparo a Pesquisa 4270 68 18 9 Red de Interconexion Universi 7927 68 6 41 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 13999 62 36 8 Mega Cable S.A. de C.V. 7984 59 12 40 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 674 666 Covad Communications 4323 633 452 Time Warner Communications, I 3908 926 434 Supernet, Inc. 7018 1384 413 AT&T 7843 553 386 Adelphia Corp. 6197 612 342 BellSouth Network Solutions, 189 674 340 Genuity 4755 403 330 Videsh Sanchar Nigam Ltd. Aut 6198 496 299 BellSouth Network Solutions, 27364 317 294 Armstrong Cable Services 1221 984 287 Telstra Pty Ltd 4355 393 282 EarthLink, Inc. 6347 355 275 SAVVIS Communications Corpora 22909 292 273 Comcast Cable Corporation 1239 906 253 Sprint 25844 241 239 Skadden, Arps, Slate, Meagher 376 352 237 Reseau Interordinateurs Scien 17676 256 236 XTAGE CORPORATION 22773 253 232 Cox Communications, Inc. Atla 7066 492 229 Virginia Polytechnic Institut List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 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 189.186.184.0/24 4471 Michigan Internet Cooperative 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 /8:20 /9:4 /10:6 /11:12 /12:55 /13:98 /14:263 /15:475 /16:7422 /17:1745 /18:3086 /19:8429 /20:8741 /21:6416 /22:9418 /23:10926 /24:70136 /25:165 /26:209 /27:146 /28:26 /29:13 /30:51 /31:0 /32:27 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 668 674 Covad Communications 189 589 674 Genuity 3908 586 926 Supernet, Inc. 7018 494 1384 AT&T 6197 476 612 BellSouth Network Solutions, 701 442 1482 UUNET Technologies, Inc. 702 436 720 UUNET - Commercial IP service 7066 388 492 Virginia Polytechnic Institut 6198 386 496 BellSouth Network Solutions, 10753 376 390 XCOM Technologies, INC. 690 371 411 Merit Network 20115 328 483 Charter Communications 1239 314 906 Sprint 27364 311 317 Armstrong Cable Services 7843 263 553 Adelphia Corp. 25844 241 241 Skadden, Arps, Slate, Meagher 4355 211 393 EarthLink, Inc. 3320 208 269 Deutsche Telekom AG 3356 207 476 Level 3 Communications, LLC 1 202 463 GENUITY Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:705 13:1 15:4 16:1 17:4 20:6 24:843 25:1 32:84 38:44 40:23 44:2 55:1 57:14 61:308 62:397 63:1858 64:1767 65:2018 66:2703 67:273 68:389 69:260 80:414 81:119 82:15 128:146 129:171 130:62 131:84 132:14 134:172 135:7 136:187 137:110 138:126 139:48 140:154 141:133 142:100 143:44 144:90 145:13 146:274 147:62 148:339 149:78 150:121 151:69 152:218 153:57 154:4 155:126 156:59 157:50 158:128 159:135 160:44 161:75 162:360 163:76 164:316 165:145 166:97 167:313 168:178 169:95 170:322 171:9 189:1 192:5384 193:2457 194:1979 195:1120 196:469 198:3608 199:2752 200:3028 202:3910 203:5256 204:2993 205:2037 206:2327 207:2490 208:2563 209:2727 210:902 211:357 212:964 213:915 214:16 215:22 216:3227 217:713 218:105 219:35 220:102 221:10 End of report
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