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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Aug 8 20:06:49 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 09 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127710 Prefixes after maximum aggregation: 79868 Unique aggregates announced to Internet: 60367 Total ASes present in the Internet Routing Table: 15657 Origin-only ASes present in the Internet Routing Table: 13574 Origin ASes announcing only one prefix: 6162 Transit ASes present in the Internet Routing Table: 2083 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 26 Illegal AS announcements present in the Routing Table: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1238635136 Equivalent to 73 /8s, 212 /16s and 18 /24s Percentage of available address space announced: 33.4 Percentage of allocated address space announced: 59.7 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56535 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22207 Total APNIC prefixes after maximum aggregation: 12673 Prefixes being announced from the APNIC address blocks: 20632 Unique aggregates announced from the APNIC address blocks: 12333 APNIC Region origin ASes present in the Internet Routing Table: 1870 APNIC Region origin ASes announcing only one prefix: 523 APNIC Region transit ASes present in the Internet Routing Table: 307 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 118939264 Equivalent to 7 /8s, 22 /16s and 222 /24s Percentage of available APNIC address space announced: 64.1 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: 77809 Total ARIN prefixes after maximum aggregation: 48602 Prefixes being announced from the ARIN address blocks: 55523 Unique aggregates announced from the ARIN address blocks: 16601 ARIN Region origin ASes present in the Internet Routing Table: 8600 ARIN Region origin ASes announcing only one prefix: 2940 ARIN Region transit ASes present in the Internet Routing Table: 826 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 196613888 Equivalent to 11 /8s, 184 /16s and 23 /24s Percentage of available ARIN address space announced: 73.2 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: 22334 Total RIPE prefixes after maximum aggregation: 16318 Prefixes being announced from the RIPE address blocks: 18924 Unique aggregates announced from the RIPE address blocks: 12628 RIPE Region origin ASes present in the Internet Routing Table: 4773 RIPE Region origin ASes announcing only one prefix: 2603 RIPE Region transit ASes present in the Internet Routing Table: 848 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 134549056 Equivalent to 8 /8s, 5 /16s and 14 /24s Percentage of available RIPE address space announced: 72.9 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: 5357 Total LACNIC prefixes after maximum aggregation: 2275 Prefixes being announced from the LACNIC address blocks: 4841 Unique aggregates announced from the LACNIC address blocks: 3146 LACNIC Region origin ASes present in the Internet Routing Table: 345 LACNIC Region origin ASes announcing only one prefix: 96 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 12978688 Equivalent to 0 /8s, 198 /16s and 10 /24s Percentage of available LACNIC address space announced: 38.7 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 1037 1037 729 Telstra Pty Ltd 4755 441 136 71 Videsh Sanchar Nigam Ltd. Aut 2907 371 1863 346 SINET Japan 703 336 370 268 UUNET 4134 332 2146 113 Data Communications Bureau 17557 302 26 137 Pakistan Telecom 2764 300 323 270 connect.com.au pty ltd 7474 260 306 203 Optus Communications Pty Ltd 17676 252 3878 21 XTAGE CORPORATION 3786 239 777 205 DACOM Corporation 9583 239 37 20 Satyam Infoway Ltd., 4766 238 2461 170 Korea Internet Exchange for " 9800 195 314 56 CHINA UNICOM 9443 182 58 82 Primus Telecommunications 4538 170 1538 21 China Education and Research 9929 169 153 33 China Netcom Corp. 9498 159 11 25 BHARTI BT INTERNET LTD. 9238 140 9 21 TATA ISP 4739 139 58 128 Commerical Internet eXchange 4716 132 745 126 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1484 8778 1045 UUNET Technologies, Inc. 7018 1372 7151 956 AT&T 1239 935 2998 656 Sprint 3908 908 1534 484 Supernet, Inc. 7132 855 6604 236 Southwestern Bell Internet Se 189 670 371 324 Genuity 18566 652 160 8 Covad Communications 4323 617 550 176 Time Warner Communications, I 6197 562 386 242 BellSouth Network Solutions, 7843 558 400 215 Adelphia Corp. 209 523 2194 303 Qwest 852 523 1124 415 Telus Advanced Communications 1 511 1180 333 GENUITY 6198 500 271 190 BellSouth Network Solutions, 7066 488 205 259 Virginia Polytechnic Institut 705 482 192 303 UUNET Technologies, Inc. 20115 473 196 284 Charter Communications 3356 440 10699 362 Level 3 Communications, LLC 690 411 60 277 Merit Network 4355 405 339 111 EarthLink, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 735 2139 611 UUNET - Commercial IP service 719 312 307 125 LANLINK autonomous system 3301 292 1186 280 TeliaNet Sweden 3320 258 1987 220 Deutsche Telekom AG 8220 246 432 234 COLT Internet - International 680 233 2054 230 DFN-IP service G-WiN 1257 231 309 187 SWIPnet Swedish IP Network 3215 212 736 120 France Telecom Transpac 5515 185 779 149 Sonera Solution Autonomous Sy 786 179 1874 179 The JANET IP Service 5400 168 157 119 BT Ignite European Backbone 3303 141 540 138 Swisscom Ltd 8708 135 107 132 Romania Data Systems S.A. 12302 127 18 34 MobiFon S.A. 2856 125 1315 116 BTnet UK Regional network 3246 122 376 120 Song Networks 3269 117 821 64 TELECOM ITALIA 3352 111 812 33 Ibernet, Internet Access Netw 2647 100 4129 44 SITA 5511 97 178 76 France Telecom LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 290 98 106 ImpSat 7303 237 39 55 Telecom Argentina Stet-France 8151 219 334 117 UniNet S.A. de C.V. 11172 177 69 42 Servicios Alestra S.A de C.V 16814 135 9 17 NSS, S.A. 6503 132 205 93 AVANTEL, S.A. 10620 125 8 31 TVCABLE BOGOTA 11340 107 3 38 Red Universitaria Nacional 11992 87 8 31 Integrated Systems 6147 84 70 21 Telefonica Del Peru 8065 80 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 74 14 38 Telefonica Empresas 1916 73 306 43 Fundacao de Amparo a Pesquisa 11830 73 5 33 Instituto Costarricense de El 4270 68 18 9 Red de Interconexion Universi 7927 65 6 39 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 13999 63 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 652 644 Covad Communications 7132 855 619 Southwestern Bell Internet Se 4323 617 441 Time Warner Communications, I 3908 908 424 Supernet, Inc. 7018 1372 416 AT&T 4755 441 370 Videsh Sanchar Nigam Ltd. Aut 189 670 346 Genuity 7843 558 343 Adelphia Corp. 6197 562 320 BellSouth Network Solutions, 11305 358 320 Interland Incorporated 6198 500 310 BellSouth Network Solutions, 1221 1037 308 Telstra Pty Ltd 27364 317 298 Armstrong Cable Services 4355 405 294 EarthLink, Inc. 6347 364 283 SAVVIS Communications Corpora 1239 935 279 Sprint 22909 284 271 Comcast Cable Corporation 25844 258 256 Skadden, Arps, Slate, Meagher 376 357 242 Reseau Interordinateurs Scien 17676 252 231 XTAGE CORPORATION List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 65021 PRIVATE 128.216.1.0/24 619 Department of Navy 65021 PRIVATE 128.216.4.0/24 619 Department of Navy 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 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 /9:5 /10:8 /11:13 /12:54 /13:99 /14:263 /15:475 /16:7416 /17:1737 /18:3099 /19:8684 /20:8741 /21:6339 /22:9352 /23:10831 /24:69928 /25:153 /26:259 /27:125 /28:27 /29:11 /30:47 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 646 652 Covad Communications 189 592 670 Genuity 3908 580 908 Supernet, Inc. 7018 484 1372 AT&T 702 448 735 UUNET - Commercial IP service 701 431 1484 UUNET Technologies, Inc. 6197 427 562 BellSouth Network Solutions, 6198 391 500 BellSouth Network Solutions, 7066 385 488 Virginia Polytechnic Institut 690 371 411 Merit Network 1239 338 935 Sprint 20115 322 473 Charter Communications 27364 311 317 Armstrong Cable Services 7843 291 558 Adelphia Corp. 11305 281 358 Interland Incorporated 25844 258 258 Skadden, Arps, Slate, Meagher 10753 224 229 XCOM Technologies, INC. 4355 219 405 EarthLink, Inc. 1 210 511 GENUITY 209 209 523 Qwest Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:712 13:1 15:4 16:1 17:3 20:6 24:857 25:1 32:98 38:45 40:23 44:2 57:14 61:291 62:383 63:1876 64:1731 65:2016 66:2657 67:221 68:386 69:243 80:396 81:121 82:10 128:135 129:169 130:49 131:81 132:15 134:175 135:7 136:122 137:118 138:120 139:46 140:141 141:116 142:94 143:45 144:99 145:13 146:279 147:59 148:300 149:64 150:104 151:63 152:214 153:57 154:3 155:119 156:55 157:47 158:118 159:137 160:47 161:74 162:407 163:81 164:324 165:146 166:96 167:320 168:181 169:92 170:319 171:8 192:5406 193:2450 194:1979 195:1154 196:472 198:3599 199:2735 200:2994 202:3936 203:5226 204:2959 205:2043 206:2323 207:2445 208:2568 209:2888 210:888 211:305 212:1035 213:910 214:16 215:22 216:3246 217:685 218:102 219:76 220:97 221:10 End of report
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