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 23 May, 2003 Analysis Summary ---------------- BGP routing table entries examined: 126181 Prefixes after maximum aggregation: 78783 Unique aggregates announced to Internet: 59131 Total ASes present in the Internet Routing Table: 15226 Origin-only ASes present in the Internet Routing Table: 13198 Origin ASes announcing only one prefix: 5968 Transit ASes present in the Internet Routing Table: 2028 Transit-only ASes present in the Internet Routing Table: 73 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: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 18 Number of addresses announced to Internet: 1230646464 Equivalent to 73 /8s, 90 /16s and 44 /24s Percentage of available address space announced: 33.2 Percentage of allocated address space announced: 59.3 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 54837 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21501 Total APNIC prefixes after maximum aggregation: 12486 Prefixes being announced from the APNIC address blocks: 19899 Unique aggregates announced from the APNIC address blocks: 12026 APNIC Region origin ASes present in the Internet Routing Table: 1804 APNIC Region origin ASes announcing only one prefix: 521 APNIC Region transit ASes present in the Internet Routing Table: 302 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 113446432 Equivalent to 6 /8s, 195 /16s and 14 /24s Percentage of available APNIC address space announced: 61.1 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: 77763 Total ARIN prefixes after maximum aggregation: 48191 Prefixes being announced from the ARIN address blocks: 55810 Unique aggregates announced from the ARIN address blocks: 16539 ARIN Region origin ASes present in the Internet Routing Table: 8426 ARIN Region origin ASes announcing only one prefix: 2874 ARIN Region transit ASes present in the Internet Routing Table: 812 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 192109056 Equivalent to 11 /8s, 115 /16s and 90 /24s Percentage of available ARIN address space announced: 71.6 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: 21561 Total RIPE prefixes after maximum aggregation: 15856 Prefixes being announced from the RIPE address blocks: 18075 Unique aggregates announced from the RIPE address blocks: 12050 RIPE Region origin ASes present in the Internet Routing Table: 4589 RIPE Region origin ASes announcing only one prefix: 2486 RIPE Region transit ASes present in the Internet Routing Table: 816 Average RIPE Region AS path length visible: 5.5 Max RIPE Region AS path length visible: 20 Number of RIPE addresses announced to Internet: 131014912 Equivalent to 7 /8s, 207 /16s and 33 /24s Percentage of available RIPE address space announced: 71.0 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: 5352 Total LACNIC prefixes after maximum aggregation: 2250 Prefixes being announced from the LACNIC address blocks: 4759 Unique aggregates announced from the LACNIC address blocks: 2973 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 87 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 12579584 Equivalent to 0 /8s, 191 /16s and 243 /24s Percentage of available LACNIC address space announced: 37.5 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 1081 1103 770 Telstra Pty Ltd 4755 407 135 72 Videsh Sanchar Nigam Ltd. Aut 2907 376 1927 352 SINET Japan 17557 375 26 152 Pakistan Telecom 703 347 373 276 UUNET 2764 315 342 279 connect.com.au pty ltd 4814 295 86 19 China Telecom (Group) 7474 270 290 203 Optus Communications Pty Ltd 17676 248 3830 17 XTAGE CORPORATION 3786 242 773 209 DACOM Corporation 4134 235 2042 117 Data Communications Bureau 9583 225 34 17 Satyam Infoway Ltd., 4766 213 2475 159 Korea Internet Exchange for " 9443 183 58 83 Primus Telecommunications 9800 181 260 59 CHINA UNICOM 9498 141 10 16 BHARTI BT INTERNET LTD. 4739 137 57 125 Commerical Internet eXchange 9238 134 8 17 TATA ISP 4716 127 729 121 TTnet 7539 127 124 101 TANet2, sponsored by NSC, TAI ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1558 8933 1101 UUNET Technologies, Inc. 7018 1320 7190 908 AT&T 4151 1258 691 60 USDA 7132 965 6475 207 Southwestern Bell Internet Se 1239 942 3010 664 Sprint 3908 926 1557 485 Supernet, Inc. 189 706 341 289 Genuity 7843 671 348 177 Adelphia Corp. 1 658 2622 447 GENUITY 4323 597 525 175 Time Warner Communications, I 18566 579 160 8 Covad Communications 2386 571 507 271 AT&T Data Communications Serv 852 534 1123 422 Telus Advanced Communications 705 509 272 332 UUNET Technologies, Inc. 209 489 2104 294 Qwest 6197 487 341 196 BellSouth Network Solutions, 7066 485 204 260 Virginia Polytechnic Institut 690 477 69 316 Merit Network 20115 472 195 288 Charter Communications 6198 463 229 177 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 755 2175 641 UUNET - Commercial IP service 3320 346 2004 228 Deutsche Telekom AG 3301 307 1140 294 TeliaNet Sweden 3215 302 852 173 France Telecom Transpac 680 232 2053 229 DFN-IP service G-WiN 1257 227 327 189 SWIPnet Swedish IP Network 8220 224 384 211 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 20858 163 17 3 This AS will be used to conne 8708 154 44 149 Romania Data Systems S.A. 3303 143 549 140 Swisscom Ltd 12302 128 18 35 MobiFon S.A. 2856 122 1299 112 BTnet UK Regional network 3269 116 819 63 TELECOM ITALIA 3246 112 365 110 Song Networks 3352 108 780 32 Ibernet, Internet Access Netw 2647 99 4129 39 SITA LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 300 98 108 ImpSat 7303 245 36 58 Telecom Argentina Stet-France 8151 212 350 118 UniNet S.A. de C.V. 11172 169 66 41 Servicios Alestra S.A de C.V 16814 137 9 18 NSS, S.A. 6503 136 190 99 AVANTEL, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 105 3 33 Red Universitaria Nacional 6147 96 62 20 Telefonica Del Peru 11992 90 9 38 Integrated Systems 8065 80 8 14 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 7738 67 186 12 Telecomunicacoes da Bahia S.A 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 4151 1258 1198 USDA 7132 965 758 Southwestern Bell Internet Se 18566 579 571 Covad Communications 7843 671 494 Adelphia Corp. 3908 926 441 Supernet, Inc. 4323 597 422 Time Warner Communications, I 189 706 417 Genuity 7018 1320 412 AT&T 4755 407 335 Videsh Sanchar Nigam Ltd. Aut 1221 1081 311 Telstra Pty Ltd 2386 571 300 AT&T Data Communications Serv 6197 487 291 BellSouth Network Solutions, 4355 400 290 EarthLink, Inc. 6198 463 286 BellSouth Network Solutions, 6347 361 282 SAVVIS Communications Corpora 1239 942 278 Sprint 4814 295 276 China Telecom (Group) 22927 288 275 TELEFONICA DE ARGENTINA 27364 294 274 Armstrong Cable Services 22909 269 252 Comcast Cable Corporation 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 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 /12:51 /13:98 /14:254 /15:473 /16:7420 /17:1683 /18:2970 /19:8437 /20:8424 /21:6110 /22:9034 /23:10649 /24:70028 /25:161 /26:210 /27:52 /28:26 /29:12 /30:20 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 629 706 Genuity 3908 578 926 Supernet, Inc. 18566 573 579 Covad Communications 702 464 755 UUNET - Commercial IP service 7018 455 1320 AT&T 701 436 1558 UUNET Technologies, Inc. 7843 435 671 Adelphia Corp. 690 428 477 Merit Network 7066 382 485 Virginia Polytechnic Institut 6197 363 487 BellSouth Network Solutions, 6198 362 463 BellSouth Network Solutions, 1239 351 942 Sprint 2386 351 571 AT&T Data Communications Serv 20115 333 472 Charter Communications 3320 289 346 Deutsche Telekom AG 27364 287 294 Armstrong Cable Services 4814 281 295 China Telecom (Group) 1 245 658 GENUITY 22927 226 288 TELEFONICA DE ARGENTINA 3215 225 302 France Telecom Transpac Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:706 13:1 15:4 16:1 17:3 20:8 24:831 25:1 32:87 38:123 40:19 44:2 55:1 57:17 61:459 62:561 63:1878 64:1773 65:1929 66:2453 67:174 68:387 69:146 80:346 81:124 128:145 129:181 130:44 131:80 132:12 133:1 134:177 135:4 136:116 137:107 138:108 139:65 140:138 141:117 142:93 143:44 144:105 145:14 146:263 147:95 148:287 149:70 150:44 151:79 152:241 153:57 154:7 155:108 156:48 157:35 158:126 159:145 160:39 161:75 162:130 163:75 164:306 165:144 166:93 167:330 168:399 169:62 170:317 171:7 192:5306 193:2403 194:1974 195:1016 196:466 198:3577 199:3913 200:2957 202:3759 203:5217 204:2998 205:2051 206:2380 207:2373 208:2628 209:2840 210:809 211:332 212:946 213:781 214:20 215:23 216:3260 217:606 218:91 219:38 220:95 221:2 End of report