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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 19 20:07:45 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 20 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127707 Prefixes after maximum aggregation: 80037 Unique aggregates announced to Internet: 61677 Total ASes present in the Internet Routing Table: 15811 Origin-only ASes present in the Internet Routing Table: 13714 Origin ASes announcing only one prefix: 6243 Transit ASes present in the Internet Routing Table: 2097 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 26 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: 1225495524 Equivalent to 73 /8s, 11 /16s and 147 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56883 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22509 Total APNIC prefixes after maximum aggregation: 12724 Prefixes being announced from the APNIC address blocks: 20903 Unique aggregates announced from the APNIC address blocks: 12349 APNIC Region origin ASes present in the Internet Routing Table: 1896 APNIC Region origin ASes announcing only one prefix: 547 APNIC Region transit ASes present in the Internet Routing Table: 307 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 121996544 Equivalent to 7 /8s, 69 /16s and 133 /24s Percentage of available APNIC address space announced: 65.7 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: 77141 Total ARIN prefixes after maximum aggregation: 48510 Prefixes being announced from the ARIN address blocks: 55140 Unique aggregates announced from the ARIN address blocks: 17469 ARIN Region origin ASes present in the Internet Routing Table: 8637 ARIN Region origin ASes announcing only one prefix: 2978 ARIN Region transit ASes present in the Internet Routing Table: 834 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 197181216 Equivalent to 11 /8s, 192 /16s and 191 /24s Percentage of available ARIN address space announced: 73.5 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: 22641 Total RIPE prefixes after maximum aggregation: 16510 Prefixes being announced from the RIPE address blocks: 19169 Unique aggregates announced from the RIPE address blocks: 12864 RIPE Region origin ASes present in the Internet Routing Table: 4862 RIPE Region origin ASes announcing only one prefix: 2620 RIPE Region transit ASes present in the Internet Routing Table: 853 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 136444480 Equivalent to 8 /8s, 33 /16s and 250 /24s Percentage of available RIPE address space announced: 73.9 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: 5414 Total LACNIC prefixes after maximum aggregation: 2293 Prefixes being announced from the LACNIC address blocks: 4852 Unique aggregates announced from the LACNIC address blocks: 3155 LACNIC Region origin ASes present in the Internet Routing Table: 345 LACNIC Region origin ASes announcing only one prefix: 98 LACNIC Region transit ASes present in the Internet Routing Table: 71 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 13285888 Equivalent to 0 /8s, 202 /16s and 186 /24s Percentage of available LACNIC address space announced: 39.6 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 973 1109 691 Telstra Pty Ltd 4755 412 135 75 Videsh Sanchar Nigam Ltd. Aut 2907 374 1896 349 SINET Japan 4134 340 2228 108 Data Communications Bureau 703 335 371 264 UUNET 2764 290 322 258 connect.com.au pty ltd 17557 288 21 135 Pakistan Telecom 7474 269 306 209 Optus Communications Pty Ltd 17676 264 3980 26 XTAGE CORPORATION 9583 251 38 24 Satyam Infoway Ltd., 4766 238 2461 173 Korea Internet Exchange for " 3786 235 773 203 DACOM Corporation 9800 203 332 52 CHINA UNICOM 9498 187 20 16 BHARTI BT INTERNET LTD. 9443 185 58 82 Primus Telecommunications 9929 180 160 36 China Netcom Corp. 9942 176 69 106 COMindico Australia 4538 172 1554 21 China Education and Research 17642 155 40 116 RequestDSL BGP AS# for Sydney 4837 140 1058 88 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1460 8688 1016 UUNET Technologies, Inc. 7018 1396 7139 973 AT&T 3908 921 1574 492 Supernet, Inc. 1239 905 3035 651 Sprint 18566 687 176 8 Covad Communications 4323 663 571 189 Time Warner Communications, I 189 620 432 356 Genuity 6197 613 397 269 BellSouth Network Solutions, 3356 527 10676 444 Level 3 Communications, LLC 852 517 1123 410 Telus Advanced Communications 209 506 2129 291 Qwest 6198 494 329 192 BellSouth Network Solutions, 20115 470 202 293 Charter Communications 7843 465 400 182 Adelphia Corp. 7066 438 205 262 Virginia Polytechnic Institut 1 436 1048 272 GENUITY 10753 422 87 207 XCOM Technologies, INC. 705 416 185 253 UUNET Technologies, Inc. 690 411 59 276 Merit Network 4355 394 336 110 EarthLink, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 712 2119 591 UUNET - Commercial IP service 3301 295 1168 282 TeliaNet Sweden 3320 270 1989 230 Deutsche Telekom AG 8220 256 434 244 COLT Internet - International 680 232 2054 229 DFN-IP service G-WiN 1257 228 374 183 SWIPnet Swedish IP Network 719 189 307 120 LANLINK autonomous system 5515 186 779 148 Sonera Solution Autonomous Sy 3215 183 721 106 France Telecom Transpac 5400 183 174 134 BT Ignite European Backbone 786 176 1857 176 The JANET IP Service 8708 155 110 152 Romania Data Systems S.A. 3303 142 540 137 Swisscom Ltd 12302 126 18 33 MobiFon S.A. 3246 125 376 123 Song Networks 3269 119 853 65 TELECOM ITALIA 20858 115 17 3 This AS will be used to conne 2856 112 1293 103 BTnet UK Regional network 25186 104 144 71 France Telecom Transpac's Tra 3352 98 824 34 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 340 103 105 ImpSat 8151 232 350 121 UniNet S.A. de C.V. 7303 229 40 62 Telecom Argentina Stet-France 11172 188 79 44 Servicios Alestra S.A de C.V 16814 151 10 17 NSS, S.A. 10620 127 8 28 TVCABLE BOGOTA 6503 125 205 91 AVANTEL, S.A. 11340 104 3 36 Red Universitaria Nacional 11992 88 8 37 Integrated Systems 6147 84 70 19 Telefonica Del Peru 8065 82 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 75 14 38 Telefonica Empresas 11830 72 21 27 Instituto Costarricense de El 4270 68 18 9 Red de Interconexion Universi 7927 68 6 41 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 1916 61 270 41 Fundacao de Amparo a Pesquisa 7984 59 12 40 Global One Colombia 4926 57 4 48 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 687 679 Covad Communications 4323 663 474 Time Warner Communications, I 3908 921 429 Supernet, Inc. 7018 1396 423 AT&T 6197 613 344 BellSouth Network Solutions, 4755 412 337 Videsh Sanchar Nigam Ltd. Aut 6198 494 302 BellSouth Network Solutions, 27364 319 296 Armstrong Cable Services 4355 394 284 EarthLink, Inc. 7843 465 283 Adelphia Corp. 1221 973 282 Telstra Pty Ltd 22909 299 280 Comcast Cable Corporation 6347 354 273 SAVVIS Communications Corpora 189 620 264 Genuity 1239 905 254 Sprint 376 362 247 Reseau Interordinateurs Scien 22773 268 241 Cox Communications, Inc. Atla 25844 242 240 Skadden, Arps, Slate, Meagher 17676 264 238 XTAGE CORPORATION 6140 340 235 ImpSat 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 23780 UNALLOCATED 211.15.112.0/20 2516 Kokusai Denshin Denw 23780 UNALLOCATED 211.19.224.0/19 2516 Kokusai Denshin Denw 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 /8:18 /9:4 /10:6 /11:12 /12:55 /13:97 /14:265 /15:474 /16:7420 /17:1753 /18:3127 /19:8450 /20:8782 /21:6427 /22:9432 /23:10908 /24:69862 /25:155 /26:201 /27:153 /28:27 /29:9 /30:49 /31:0 /32:21 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 681 687 Covad Communications 3908 582 921 Supernet, Inc. 189 536 620 Genuity 7018 501 1396 AT&T 6197 478 613 BellSouth Network Solutions, 701 439 1460 UUNET Technologies, Inc. 702 428 712 UUNET - Commercial IP service 10753 390 422 XCOM Technologies, INC. 6198 380 494 BellSouth Network Solutions, 690 371 411 Merit Network 7066 334 438 Virginia Polytechnic Institut 20115 316 470 Charter Communications 1239 314 905 Sprint 27364 313 319 Armstrong Cable Services 3356 258 527 Level 3 Communications, LLC 25844 242 242 Skadden, Arps, Slate, Meagher 4355 213 394 EarthLink, Inc. 3320 209 270 Deutsche Telekom AG 209 203 506 Qwest 14824 199 226 NewSouth Communications Corp. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:710 13:1 15:4 16:1 17:3 20:6 24:827 25:1 32:84 38:45 40:23 44:2 55:1 57:14 61:310 62:522 63:1865 64:1773 65:1949 66:2664 67:283 68:352 69:245 80:420 81:132 82:16 128:153 129:167 130:62 131:84 132:16 134:169 135:7 136:187 137:114 138:126 139:49 140:161 141:137 142:101 143:44 144:88 145:13 146:275 147:61 148:301 149:79 150:121 151:68 152:218 153:58 154:5 155:126 156:58 157:53 158:134 159:139 160:45 161:69 162:358 163:76 164:263 165:154 166:97 167:304 168:177 169:96 170:326 171:9 192:5279 193:2464 194:1979 195:1144 196:464 198:3575 199:2724 200:2967 202:3961 203:5253 204:2963 205:2007 206:2309 207:2485 208:2568 209:2691 210:907 211:362 212:950 213:933 214:16 215:22 216:3248 217:718 218:106 219:37 220:115 221:11 222:1 End of report
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