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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 12 20:07:52 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 13 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127842 Prefixes after maximum aggregation: 80137 Unique aggregates announced to Internet: 61870 Total ASes present in the Internet Routing Table: 15804 Origin-only ASes present in the Internet Routing Table: 13695 Origin ASes announcing only one prefix: 6229 Transit ASes present in the Internet Routing Table: 2109 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 5.0 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: 14 Number of addresses announced to Internet: 1242608416 Equivalent to 74 /8s, 16 /16s and 179 /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: 56770 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22382 Total APNIC prefixes after maximum aggregation: 12642 Prefixes being announced from the APNIC address blocks: 20800 Unique aggregates announced from the APNIC address blocks: 12476 APNIC Region origin ASes present in the Internet Routing Table: 1879 APNIC Region origin ASes announcing only one prefix: 539 APNIC Region transit ASes present in the Internet Routing Table: 310 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 121830912 Equivalent to 7 /8s, 66 /16s and 254 /24s Percentage of available APNIC address space announced: 65.6 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: 77606 Total ARIN prefixes after maximum aggregation: 48745 Prefixes being announced from the ARIN address blocks: 55327 Unique aggregates announced from the ARIN address blocks: 17460 ARIN Region origin ASes present in the Internet Routing Table: 8663 ARIN Region origin ASes announcing only one prefix: 2976 ARIN Region transit ASes present in the Internet Routing Table: 841 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 197046304 Equivalent to 11 /8s, 190 /16s and 176 /24s Percentage of available ARIN address space announced: 73.4 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: 22408 Total RIPE prefixes after maximum aggregation: 16459 Prefixes being announced from the RIPE address blocks: 18949 Unique aggregates announced from the RIPE address blocks: 12796 RIPE Region origin ASes present in the Internet Routing Table: 4842 RIPE Region origin ASes announcing only one prefix: 2618 RIPE Region transit ASes present in the Internet Routing Table: 858 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 27 Number of RIPE addresses announced to Internet: 135868480 Equivalent to 8 /8s, 25 /16s and 48 /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: 5444 Total LACNIC prefixes after maximum aggregation: 2291 Prefixes being announced from the LACNIC address blocks: 4885 Unique aggregates announced from the LACNIC address blocks: 3136 LACNIC Region origin ASes present in the Internet Routing Table: 347 LACNIC Region origin ASes announcing only one prefix: 96 LACNIC Region transit ASes present in the Internet Routing Table: 70 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 13202176 Equivalent to 0 /8s, 201 /16s and 115 /24s Percentage of available LACNIC address space announced: 39.3 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 692 Telstra Pty Ltd 4755 405 134 69 Videsh Sanchar Nigam Ltd. Aut 2907 375 1896 350 SINET Japan 703 336 371 265 UUNET 4134 328 2223 107 Data Communications Bureau 17557 306 22 136 Pakistan Telecom 2764 287 322 256 connect.com.au pty ltd 7474 268 290 209 Optus Communications Pty Ltd 17676 261 3962 25 XTAGE CORPORATION 9583 253 38 23 Satyam Infoway Ltd., 3786 237 773 203 DACOM Corporation 4766 228 2461 171 Korea Internet Exchange for " 9800 201 331 54 CHINA UNICOM 9443 185 58 82 Primus Telecommunications 9498 181 16 36 BHARTI BT INTERNET LTD. 4538 173 1586 20 China Education and Research 9929 173 160 36 China Netcom Corp. 9942 161 69 102 COMindico Australia 9829 158 101 17 National Internet Backbone 17642 155 40 116 RequestDSL BGP AS# for Sydney ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1477 8770 1032 UUNET Technologies, Inc. 7018 1389 7111 973 AT&T 3908 920 1573 489 Supernet, Inc. 1239 908 3039 653 Sprint 18566 678 160 8 Covad Communications 4323 636 553 183 Time Warner Communications, I 189 627 448 349 Genuity 6197 613 396 269 BellSouth Network Solutions, 7843 526 438 148 Adelphia Corp. 852 516 1123 410 Telus Advanced Communications 3356 514 10676 429 Level 3 Communications, LLC 209 509 2129 294 Qwest 6198 493 329 191 BellSouth Network Solutions, 7066 493 205 263 Virginia Polytechnic Institut 20115 484 203 293 Charter Communications 1 457 1054 293 GENUITY 705 417 185 254 UUNET Technologies, Inc. 690 411 59 276 Merit Network 4355 394 340 111 EarthLink, Inc. 10753 390 80 195 XCOM Technologies, INC. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 710 2119 589 UUNET - Commercial IP service 3301 295 1168 282 TeliaNet Sweden 3320 271 1989 231 Deutsche Telekom AG 8220 247 431 236 COLT Internet - International 1257 233 374 187 SWIPnet Swedish IP Network 680 232 2054 229 DFN-IP service G-WiN 3215 200 738 113 France Telecom Transpac 719 193 307 123 LANLINK autonomous system 5515 185 779 148 Sonera Solution Autonomous Sy 5400 183 174 133 BT Ignite European Backbone 786 179 1874 179 The JANET IP Service 8708 155 110 152 Romania Data Systems S.A. 3303 143 540 138 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 3246 125 376 123 Song Networks 3269 117 821 64 TELECOM ITALIA 2856 112 1293 103 BTnet UK Regional network 3352 98 824 34 Ibernet, Internet Access Netw 25186 98 127 71 France Telecom Transpac's Tra 2647 89 4129 45 SITA LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 336 103 106 ImpSat 7303 240 40 58 Telecom Argentina Stet-France 8151 233 351 122 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 132 205 93 AVANTEL, S.A. 10620 127 8 28 TVCABLE BOGOTA 11340 104 3 36 Red Universitaria Nacional 6147 89 70 19 Telefonica Del Peru 11992 89 8 37 Integrated Systems 8065 82 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 71 305 42 Fundacao de Amparo a Pesquisa 7927 68 6 41 Global One Venezuela 4270 67 18 9 Red de Interconexion Universi 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 678 670 Covad Communications 4323 636 453 Time Warner Communications, I 3908 920 431 Supernet, Inc. 7018 1389 416 AT&T 7843 526 378 Adelphia Corp. 6197 613 344 BellSouth Network Solutions, 4755 405 336 Videsh Sanchar Nigam Ltd. Aut 6198 493 302 BellSouth Network Solutions, 27364 318 295 Armstrong Cable Services 4355 394 283 EarthLink, Inc. 1221 973 281 Telstra Pty Ltd 189 627 278 Genuity 22909 295 276 Comcast Cable Corporation 6347 351 271 SAVVIS Communications Corpora 1239 908 255 Sprint 376 358 243 Reseau Interordinateurs Scien 25844 242 240 Skadden, Arps, Slate, Meagher 17676 261 236 XTAGE CORPORATION 22773 257 232 Cox Communications, Inc. Atla 7066 493 230 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 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 /14:267 /15:473 /16:7433 /17:1748 /18:3113 /19:8420 /20:8758 /21:6426 /22:9417 /23:10919 /24:70057 /25:162 /26:203 /27:144 /28:28 /29:9 /30:49 /31:0 /32:22 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 672 678 Covad Communications 3908 581 920 Supernet, Inc. 189 542 627 Genuity 7018 497 1389 AT&T 6197 478 613 BellSouth Network Solutions, 701 440 1477 UUNET Technologies, Inc. 702 426 710 UUNET - Commercial IP service 7066 389 493 Virginia Polytechnic Institut 6198 379 493 BellSouth Network Solutions, 10753 376 390 XCOM Technologies, INC. 690 371 411 Merit Network 20115 329 484 Charter Communications 1239 317 908 Sprint 27364 312 318 Armstrong Cable Services 3356 253 514 Level 3 Communications, LLC 25844 242 242 Skadden, Arps, Slate, Meagher 7843 223 526 Adelphia Corp. 4355 212 394 EarthLink, Inc. 3320 210 271 Deutsche Telekom AG 209 204 509 Qwest Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:713 13:1 15:4 16:1 17:3 20:6 24:833 25:1 32:84 38:46 40:23 44:2 55:1 57:14 61:323 62:402 63:1872 64:1781 65:1978 66:2657 67:275 68:366 69:243 80:417 81:125 82:16 128:147 129:168 130:62 131:84 132:15 134:168 135:7 136:188 137:115 138:126 139:47 140:162 141:134 142:101 143:43 144:88 145:13 146:275 147:63 148:300 149:79 150:121 151:69 152:218 153:57 154:5 155:126 156:58 157:51 158:135 159:134 160:46 161:68 162:361 163:77 164:318 165:145 166:97 167:313 168:179 169:95 170:328 171:9 192:5395 193:2475 194:1974 195:1135 196:464 198:3615 199:2762 200:3005 202:3919 203:5249 204:2993 205:2046 206:2322 207:2490 208:2563 209:2735 210:910 211:357 212:952 213:916 214:16 215:22 216:3229 217:717 218:104 219:35 220:62 221:11 End of report
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