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 20:00 +10GMT Fri 30 May, 2003 Analysis Summary ---------------- BGP routing table entries examined: 125561 Prefixes after maximum aggregation: 78781 Unique aggregates announced to Internet: 59190 Total ASes present in the Internet Routing Table: 15261 Origin-only ASes present in the Internet Routing Table: 13231 Origin ASes announcing only one prefix: 5988 Transit ASes present in the Internet Routing Table: 2030 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: 255 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: 18 Number of addresses announced to Internet: 1231382592 Equivalent to 73 /8s, 101 /16s and 104 /24s Percentage of available address space announced: 33.2 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 55295 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21661 Total APNIC prefixes after maximum aggregation: 12532 Prefixes being announced from the APNIC address blocks: 20057 Unique aggregates announced from the APNIC address blocks: 12046 APNIC Region origin ASes present in the Internet Routing Table: 1810 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 300 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 113762976 Equivalent to 6 /8s, 199 /16s and 226 /24s Percentage of available APNIC address space announced: 61.3 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: 76924 Total ARIN prefixes after maximum aggregation: 48066 Prefixes being announced from the ARIN address blocks: 55077 Unique aggregates announced from the ARIN address blocks: 16513 ARIN Region origin ASes present in the Internet Routing Table: 8438 ARIN Region origin ASes announcing only one prefix: 2882 ARIN Region transit ASes present in the Internet Routing Table: 815 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 191855872 Equivalent to 11 /8s, 111 /16s and 125 /24s Percentage of available ARIN address space announced: 71.5 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: 21602 Total RIPE prefixes after maximum aggregation: 15924 Prefixes being announced from the RIPE address blocks: 18089 Unique aggregates announced from the RIPE address blocks: 12118 RIPE Region origin ASes present in the Internet Routing Table: 4611 RIPE Region origin ASes announcing only one prefix: 2498 RIPE Region transit ASes present in the Internet Routing Table: 817 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 131505152 Equivalent to 7 /8s, 214 /16s and 156 /24s Percentage of available RIPE address space announced: 71.3 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: 5369 Total LACNIC prefixes after maximum aggregation: 2259 Prefixes being announced from the LACNIC address blocks: 4778 Unique aggregates announced from the LACNIC address blocks: 2984 LACNIC Region origin ASes present in the Internet Routing Table: 332 LACNIC Region origin ASes announcing only one prefix: 86 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 12609280 Equivalent to 0 /8s, 192 /16s and 103 /24s Percentage of available LACNIC address space announced: 37.6 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 1075 1103 768 Telstra Pty Ltd 4755 422 134 75 Videsh Sanchar Nigam Ltd. Aut 2907 376 1911 352 SINET Japan 17557 371 26 151 Pakistan Telecom 703 344 372 274 UUNET 2764 307 340 275 connect.com.au pty ltd 4814 295 86 19 China Telecom (Group) 7474 269 290 202 Optus Communications Pty Ltd 17676 250 3862 19 XTAGE CORPORATION 3786 243 773 210 DACOM Corporation 4134 235 2042 117 Data Communications Bureau 9583 227 34 17 Satyam Infoway Ltd., 4766 212 2475 159 Korea Internet Exchange for " 9443 182 58 82 Primus Telecommunications 9800 181 260 59 CHINA UNICOM 9498 141 10 17 BHARTI BT INTERNET LTD. 4739 138 57 126 Commerical Internet eXchange 9238 132 8 23 TATA ISP 7539 129 156 103 TANet2, sponsored by NSC, TAI 4716 128 745 122 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1565 8934 1102 UUNET Technologies, Inc. 7018 1335 7209 922 AT&T 7132 988 6475 207 Southwestern Bell Internet Se 1239 948 3018 667 Sprint 3908 916 1556 477 Supernet, Inc. 189 705 341 292 Genuity 11305 657 171 82 Interland Incorporated 7843 656 353 181 Adelphia Corp. 1 638 2589 434 GENUITY 4323 597 526 175 Time Warner Communications, I 18566 581 160 8 Covad Communications 2386 547 517 298 AT&T Data Communications Serv 852 534 1123 422 Telus Advanced Communications 705 510 272 333 UUNET Technologies, Inc. 209 494 2106 300 Qwest 6197 489 343 194 BellSouth Network Solutions, 7066 482 204 259 Virginia Polytechnic Institut 20115 464 194 286 Charter Communications 6198 460 230 177 BellSouth Network Solutions, 690 455 66 297 Merit Network RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 750 2157 637 UUNET - Commercial IP service 3320 346 2004 228 Deutsche Telekom AG 3301 306 1173 293 TeliaNet Sweden 3215 302 852 173 France Telecom Transpac 680 232 2053 229 DFN-IP service G-WiN 1257 225 311 187 SWIPnet Swedish IP Network 8220 223 384 211 COLT Internet - International 719 215 307 124 LANLINK autonomous system 5400 204 121 115 BT Ignite European Backbone 5515 181 795 152 Sonera Solution Autonomous Sy 786 179 1874 179 The JANET IP Service 8708 154 44 149 Romania Data Systems S.A. 3303 142 549 139 Swisscom Ltd 12302 128 18 35 MobiFon S.A. 2856 123 1299 113 BTnet UK Regional network 3269 116 819 63 TELECOM ITALIA 3246 113 365 111 Song Networks 3352 109 780 32 Ibernet, Internet Access Netw 2647 99 4129 39 SITA 5511 95 177 76 France Telecom LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 295 98 110 ImpSat 7303 234 37 58 Telecom Argentina Stet-France 8151 215 350 118 UniNet S.A. de C.V. 11172 169 66 41 Servicios Alestra S.A de C.V 6503 136 190 99 AVANTEL, S.A. 16814 135 9 17 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 105 3 33 Red Universitaria Nacional 6147 95 70 21 Telefonica Del Peru 11992 89 8 37 Integrated Systems 8065 80 8 15 Empresas Publicas de Medellin 6535 74 5 23 Chilesat Servicios Empresari 1916 73 306 43 Fundacao de Amparo a Pesquisa 15311 71 12 35 Telefonica Empresas 4270 68 18 9 Red de Interconexion Universi 13999 68 36 8 Mega Cable S.A. de C.V. 11830 66 4 27 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 11311 64 6 13 Sinectis S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7132 988 781 Southwestern Bell Internet Se 11305 657 575 Interland Incorporated 18566 581 573 Covad Communications 7843 656 475 Adelphia Corp. 3908 916 439 Supernet, Inc. 4323 597 422 Time Warner Communications, I 7018 1335 413 AT&T 189 705 413 Genuity 4755 422 347 Videsh Sanchar Nigam Ltd. Aut 1221 1075 307 Telstra Pty Ltd 6197 489 295 BellSouth Network Solutions, 4355 400 289 EarthLink, Inc. 6347 363 285 SAVVIS Communications Corpora 6198 460 283 BellSouth Network Solutions, 1239 948 281 Sprint 4814 295 276 China Telecom (Group) 22927 288 275 TELEFONICA DE ARGENTINA 27364 294 274 Armstrong Cable Services 22909 273 258 Comcast Cable Corporation 2386 547 249 AT&T Data Communications Serv List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65516 PRIVATE 61.232.70.0/24 17621 China Netcom Corp. 65516 PRIVATE 61.232.71.0/24 17621 China Netcom Corp. 65516 PRIVATE 61.232.72.0/22 17621 China Netcom Corp. 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 64732 PRIVATE 202.38.166.0/23 9808 Guangdong Mobile Com Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 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 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.254.0/24 705 UUNET Technologies, Inc. 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 /12:52 /13:98 /14:254 /15:467 /16:7417 /17:1680 /18:2973 /19:8432 /20:8466 /21:6141 /22:9054 /23:10672 /24:69299 /25:155 /26:204 /27:54 /28:32 /29:21 /30:21 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 628 705 Genuity 11305 583 657 Interland Incorporated 18566 575 581 Covad Communications 3908 571 916 Supernet, Inc. 7018 462 1335 AT&T 702 459 750 UUNET - Commercial IP service 701 442 1565 UUNET Technologies, Inc. 7843 421 656 Adelphia Corp. 690 413 455 Merit Network 7066 379 482 Virginia Polytechnic Institut 6197 365 489 BellSouth Network Solutions, 6198 358 460 BellSouth Network Solutions, 1239 354 948 Sprint 2386 330 547 AT&T Data Communications Serv 20115 325 464 Charter Communications 3320 289 346 Deutsche Telekom AG 27364 287 294 Armstrong Cable Services 4814 281 295 China Telecom (Group) 1 239 638 GENUITY 22927 226 288 TELEFONICA DE ARGENTINA Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:705 13:1 15:4 16:1 17:3 20:8 24:832 25:1 32:87 38:58 40:20 44:2 55:1 57:17 61:459 62:408 63:1876 64:1914 65:1938 66:2493 67:176 68:379 69:159 80:351 81:127 128:141 129:177 130:47 131:78 132:12 133:1 134:176 135:3 136:117 137:107 138:109 139:64 140:138 141:117 142:93 143:44 144:103 145:14 146:273 147:96 148:290 149:68 150:44 151:74 152:233 153:57 154:3 155:115 156:50 157:40 158:126 159:143 160:43 161:76 162:129 163:76 164:308 165:144 166:93 167:322 168:397 169:62 170:312 171:7 192:5314 193:2434 194:1958 195:1024 196:479 198:3567 199:2721 200:2981 202:3768 203:5250 204:2996 205:2042 206:2384 207:2409 208:2616 209:2881 210:813 211:335 212:999 213:795 214:20 215:23 216:3516 217:619 218:79 219:38 220:94 221:2 End of report