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@lists.apnic.net If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 02 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127254 Prefixes after maximum aggregation: 79631 Unique aggregates announced to Internet: 59977 Total ASes present in the Internet Routing Table: 15616 Origin-only ASes present in the Internet Routing Table: 13541 Origin ASes announcing only one prefix: 6144 Transit ASes present in the Internet Routing Table: 2075 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 20 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: 1221471392 Equivalent to 72 /8s, 206 /16s and 44 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 58.9 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56318 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22026 Total APNIC prefixes after maximum aggregation: 12677 Prefixes being announced from the APNIC address blocks: 20439 Unique aggregates announced from the APNIC address blocks: 12399 APNIC Region origin ASes present in the Internet Routing Table: 1872 APNIC Region origin ASes announcing only one prefix: 534 APNIC Region transit ASes present in the Internet Routing Table: 309 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 118651264 Equivalent to 7 /8s, 18 /16s and 121 /24s Percentage of available APNIC address space announced: 63.9 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: 77644 Total ARIN prefixes after maximum aggregation: 48418 Prefixes being announced from the ARIN address blocks: 55430 Unique aggregates announced from the ARIN address blocks: 16306 ARIN Region origin ASes present in the Internet Routing Table: 8576 ARIN Region origin ASes announcing only one prefix: 2919 ARIN Region transit ASes present in the Internet Routing Table: 827 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 196580896 Equivalent to 11 /8s, 183 /16s and 150 /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: 22231 Total RIPE prefixes after maximum aggregation: 16267 Prefixes being announced from the RIPE address blocks: 18846 Unique aggregates announced from the RIPE address blocks: 12586 RIPE Region origin ASes present in the Internet Routing Table: 4755 RIPE Region origin ASes announcing only one prefix: 2598 RIPE Region transit ASes present in the Internet Routing Table: 839 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 134156096 Equivalent to 7 /8s, 255 /16s and 15 /24s Percentage of available RIPE address space announced: 72.7 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: 5349 Total LACNIC prefixes after maximum aggregation: 2269 Prefixes being announced from the LACNIC address blocks: 4840 Unique aggregates announced from the LACNIC address blocks: 3116 LACNIC Region origin ASes present in the Internet Routing Table: 343 LACNIC Region origin ASes announcing only one prefix: 93 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: 12903424 Equivalent to 0 /8s, 196 /16s and 228 /24s Percentage of available LACNIC address space announced: 38.5 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 1051 1038 738 Telstra Pty Ltd 4755 440 136 70 Videsh Sanchar Nigam Ltd. Aut 2907 376 1912 351 SINET Japan 703 330 370 264 UUNET 17557 309 22 138 Pakistan Telecom 2764 302 325 273 connect.com.au pty ltd 7474 261 306 201 Optus Communications Pty Ltd 17676 250 3862 19 XTAGE CORPORATION 9583 241 37 20 Satyam Infoway Ltd., 3786 239 777 205 DACOM Corporation 4134 233 2008 113 Data Communications Bureau 4766 226 2461 169 Korea Internet Exchange for " 9800 195 314 56 CHINA UNICOM 9443 182 58 82 Primus Telecommunications 4538 169 1506 21 China Education and Research 9929 169 153 33 China Netcom Corp. 9498 159 11 34 BHARTI BT INTERNET LTD. 4739 140 58 129 Commerical Internet eXchange 9238 140 9 21 TATA ISP 4716 131 745 125 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1487 8778 1048 UUNET Technologies, Inc. 7018 1361 7167 947 AT&T 1239 962 2982 664 Sprint 3908 906 1534 483 Supernet, Inc. 7132 851 6604 236 Southwestern Bell Internet Se 189 670 371 322 Genuity 18566 646 160 8 Covad Communications 4323 621 549 172 Time Warner Communications, I 7843 600 395 221 Adelphia Corp. 6197 559 440 199 BellSouth Network Solutions, 852 523 1124 415 Telus Advanced Communications 209 522 2192 304 Qwest 1 517 1212 339 GENUITY 6198 499 271 188 BellSouth Network Solutions, 7066 488 205 259 Virginia Polytechnic Institut 705 482 190 305 UUNET Technologies, Inc. 20115 472 196 283 Charter Communications 3356 440 10683 362 Level 3 Communications, LLC 690 429 62 284 Merit Network 4355 401 334 108 EarthLink, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 729 2123 611 UUNET - Commercial IP service 719 312 307 125 LANLINK autonomous system 3301 288 1169 276 TeliaNet Sweden 3320 259 1987 221 Deutsche Telekom AG 8220 246 432 234 COLT Internet - International 680 232 2053 229 DFN-IP service G-WiN 1257 229 309 185 SWIPnet Swedish IP Network 3215 212 736 120 France Telecom Transpac 5515 186 795 150 Sonera Solution Autonomous Sy 786 178 1858 178 The JANET IP Service 5400 165 158 117 BT Ignite European Backbone 8708 154 108 151 Romania Data Systems S.A. 3303 142 548 139 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 2856 125 1315 116 BTnet UK Regional network 3246 121 374 119 Song Networks 3269 117 821 64 TELECOM ITALIA 3352 111 812 33 Ibernet, Internet Access Netw 5511 99 179 76 France Telecom 2647 88 4129 44 SITA LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 291 98 107 ImpSat 7303 239 39 57 Telecom Argentina Stet-France 8151 218 334 116 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 134 205 94 AVANTEL, S.A. 10620 122 8 33 TVCABLE BOGOTA 11340 104 3 36 Red Universitaria Nacional 11992 87 8 32 Integrated Systems 6147 86 70 21 Telefonica Del Peru 8065 80 9 16 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 71 5 31 Instituto Costarricense de El 4270 68 18 9 Red de Interconexion Universi 13999 67 36 8 Mega Cable S.A. de C.V. 7927 65 6 39 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 7984 60 12 40 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 646 638 Covad Communications 7132 851 615 Southwestern Bell Internet Se 4323 621 449 Time Warner Communications, I 3908 906 423 Supernet, Inc. 7018 1361 414 AT&T 7843 600 379 Adelphia Corp. 4755 440 370 Videsh Sanchar Nigam Ltd. Aut 6197 559 360 BellSouth Network Solutions, 189 670 348 Genuity 11305 358 320 Interland Incorporated 1221 1051 313 Telstra Pty Ltd 6198 499 311 BellSouth Network Solutions, 1239 962 298 Sprint 27364 317 298 Armstrong Cable Services 4355 401 293 EarthLink, Inc. 6347 362 281 SAVVIS Communications Corpora 22909 284 271 Comcast Cable Corporation 25844 258 256 Skadden, Arps, Slate, Meagher 376 359 244 Reseau Interordinateurs Scien 17676 250 231 XTAGE CORPORATION List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 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 65530 PRIVATE 216.27.102.0/24 10466 Mid Atlantic GigaPOP 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 /9:5 /10:8 /11:13 /12:54 /13:98 /14:261 /15:477 /16:7428 /17:1733 /18:3062 /19:8646 /20:8682 /21:6317 /22:9294 /23:10815 /24:69629 /25:163 /26:273 /27:167 /28:28 /29:11 /30:47 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 640 646 Covad Communications 189 592 670 Genuity 3908 578 906 Supernet, Inc. 7018 481 1361 AT&T 702 443 729 UUNET - Commercial IP service 701 428 1487 UUNET Technologies, Inc. 6197 425 559 BellSouth Network Solutions, 6198 390 499 BellSouth Network Solutions, 690 388 429 Merit Network 7066 385 488 Virginia Polytechnic Institut 1239 364 962 Sprint 7843 333 600 Adelphia Corp. 20115 321 472 Charter Communications 27364 311 317 Armstrong Cable Services 11305 281 358 Interland Incorporated 25844 258 258 Skadden, Arps, Slate, Meagher 4355 216 401 EarthLink, Inc. 1 210 517 GENUITY 209 208 522 Qwest 705 202 482 UUNET Technologies, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:707 13:1 15:4 16:1 17:3 20:6 24:861 25:1 32:99 38:42 40:23 44:2 57:15 61:253 62:392 63:1876 64:1729 65:1995 66:2646 67:209 68:401 69:239 80:396 81:118 82:9 128:133 129:167 130:58 131:81 132:13 134:171 135:7 136:122 137:118 138:118 139:45 140:157 141:114 142:94 143:44 144:99 145:13 146:280 147:59 148:298 149:64 150:105 151:63 152:218 153:57 154:3 155:119 156:56 157:44 158:118 159:137 160:45 161:75 162:410 163:81 164:321 165:141 166:97 167:319 168:180 169:91 170:321 171:8 192:5330 193:2456 194:1976 195:1144 196:473 198:3577 199:2722 200:2998 202:3879 203:5284 204:2961 205:2033 206:2320 207:2424 208:2567 209:2862 210:878 211:288 212:1014 213:890 214:16 215:22 216:3266 217:690 218:96 219:68 220:92 221:9 End of report