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 For a graphical representation, please see http://www.apnic.net/stats/bgp. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 20:00 +10GMT Fri 18 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 124146 Prefixes after maximum aggregation: 78054 Unique aggregates announced to Internet: 58833 Total ASes present in the Internet Routing Table: 15026 Origin-only ASes present in the Internet Routing Table: 13037 Origin ASes announcing only one prefix: 5919 Transit ASes present in the Internet Routing Table: 1989 Transit-only ASes present in the Internet Routing Table: 72 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: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1224195200 Equivalent to 72 /8s, 247 /16s and 188 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 59.0 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 53849 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20795 Total APNIC prefixes after maximum aggregation: 12228 Prefixes being announced from the APNIC address blocks: 19236 Unique aggregates announced from the APNIC address blocks: 11885 APNIC Region origin ASes present in the Internet Routing Table: 1769 APNIC Region origin ASes announcing only one prefix: 517 APNIC Region transit ASes present in the Internet Routing Table: 292 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 110371808 Equivalent to 6 /8s, 148 /16s and 35 /24s Percentage of available APNIC address space announced: 59.5 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: 76681 Total ARIN prefixes after maximum aggregation: 47860 Prefixes being announced from the ARIN address blocks: 54889 Unique aggregates announced from the ARIN address blocks: 16322 ARIN Region origin ASes present in the Internet Routing Table: 8328 ARIN Region origin ASes announcing only one prefix: 2848 ARIN Region transit ASes present in the Internet Routing Table: 788 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190613760 Equivalent to 11 /8s, 92 /16s and 137 /24s Percentage of available ARIN address space announced: 71.0 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: 21379 Total RIPE prefixes after maximum aggregation: 15741 Prefixes being announced from the RIPE address blocks: 17931 Unique aggregates announced from the RIPE address blocks: 12023 RIPE Region origin ASes present in the Internet Routing Table: 4523 RIPE Region origin ASes announcing only one prefix: 2465 RIPE Region transit ASes present in the Internet Routing Table: 810 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 129020288 Equivalent to 7 /8s, 176 /16s and 177 /24s Percentage of available RIPE address space announced: 69.9 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: 5289 Total LACNIC prefixes after maximum aggregation: 2225 Prefixes being announced from the LACNIC address blocks: 4708 Unique aggregates announced from the LACNIC address blocks: 2975 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 89 LACNIC Region transit ASes present in the Internet Routing Table: 68 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 12435200 Equivalent to 0 /8s, 189 /16s and 191 /24s Percentage of available LACNIC address space announced: 37.1 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 1101 1104 793 Telstra Pty Ltd 703 396 381 310 UUNET 2907 379 1974 358 SINET Japan 17557 372 27 138 Pakistan Telecom 2764 322 341 290 connect.com.au pty ltd 4814 273 79 15 China Telecom (Group) 7474 272 276 208 Optus Communications Pty Ltd 3786 243 773 210 DACOM Corporation 17676 243 3750 22 XTAGE CORPORATION 4755 234 136 77 Videsh Sanchar Nigam Ltd. Aut 4134 225 2006 114 Data Communications Bureau 9583 220 33 14 Satyam Infoway Ltd., 4766 212 2078 157 Korea Internet Exchange for " 9443 180 58 79 Primus Telecommunications 9800 175 244 53 CHINA UNICOM 9238 139 8 17 TATA ISP 4739 130 57 119 Commerical Internet eXchange 4716 128 731 122 TTnet 9498 126 9 10 BHARTI BT INTERNET LTD. 9768 126 384 64 Korea Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1580 8906 1103 UUNET Technologies, Inc. 7018 1366 7175 947 AT&T 1239 969 3120 684 Sprint 7132 957 6444 209 Southwestern Bell Internet Se 3908 937 1571 477 Supernet, Inc. 4151 769 690 61 USDA 1 754 2770 481 GENUITY 189 705 341 290 Genuity 7843 684 402 178 Adelphia Corp. 4323 573 514 166 Time Warner Communications, I 852 549 1110 430 Telus Advanced Communications 18566 540 128 6 Covad Communications 705 529 278 234 UUNET Technologies, Inc. 2386 511 483 268 AT&T Data Communications Serv 3561 509 2341 333 Cable & Wireless USA 209 498 2137 301 Qwest 690 494 72 312 Merit Network 7066 485 204 255 Virginia Polytechnic Institut 6197 480 339 195 BellSouth Network Solutions, 6198 457 226 175 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 773 2186 643 UUNET - Commercial IP service 3215 312 851 175 France Telecom Transpac 3301 305 1172 295 TeliaNet Sweden 3320 264 2004 225 Deutsche Telekom AG 680 231 2051 228 DFN-IP service G-WiN 1257 216 327 190 SWIPnet Swedish IP Network 5400 199 97 110 BT Ignite European Backbone 8220 199 364 188 COLT Internet - International 719 197 307 125 LANLINK autonomous system 5515 196 779 168 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 164 17 3 This AS will be used to conne 8708 157 44 152 Romania Data Systems S.A. 3303 142 517 141 Swisscom Ltd 12302 126 18 33 MobiFon S.A. 2856 120 1298 110 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 109 383 106 Song Networks 3352 106 734 32 Ibernet, Internet Access Netw 3233 105 11 12 RNC - Romanian Natioanal R&D LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 294 99 105 ImpSat 7303 247 36 65 Telecom Argentina Stet-France 8151 216 334 118 UniNet S.A. de C.V. 11172 162 66 33 Servicios Alestra S.A de C.V 6503 154 207 108 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 11340 106 3 34 Red Universitaria Nacional 6147 90 62 20 Telefonica Del Peru 11992 89 8 37 Integrated Systems 8065 76 6 15 Empresas Publicas de Medellin 1916 75 306 45 Fundacao de Amparo a Pesquisa 6535 74 5 19 Chilesat Servicios Empresari 13999 74 36 8 Mega Cable S.A. de C.V. 15311 72 28 36 Telefonica Empresas 4270 68 18 10 Red de Interconexion Universi 11830 66 4 26 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 63 11 42 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7132 957 748 Southwestern Bell Internet Se 4151 769 708 USDA 18566 540 534 Covad Communications 7843 684 506 Adelphia Corp. 3908 937 460 Supernet, Inc. 7018 1366 419 AT&T 189 705 415 Genuity 4323 573 407 Time Warner Communications, I 1221 1101 308 Telstra Pty Ltd 705 529 295 UUNET Technologies, Inc. 6347 365 286 SAVVIS Communications Corpora 1239 969 285 Sprint 6197 480 285 BellSouth Network Solutions, 6198 457 282 BellSouth Network Solutions, 22927 296 282 TELEFONICA DE ARGENTINA 4355 384 275 EarthLink, Inc. 1 754 273 GENUITY 4814 273 258 China Telecom (Group) 27364 270 252 Armstrong Cable Services 2386 511 243 AT&T Data Communications Serv List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 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 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:4 /10:8 /11:13 /12:50 /13:93 /14:251 /15:465 /16:7382 /17:1646 /18:2956 /19:8335 /20:8266 /21:5951 /22:8859 /23:10554 /24:68796 /25:164 /26:193 /27:52 /28:25 /29:13 /30:24 /31:0 /32:28 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 626 705 Genuity 3908 593 937 Supernet, Inc. 18566 534 540 Covad Communications 702 480 773 UUNET - Commercial IP service 7018 478 1366 AT&T 690 443 494 Merit Network 701 439 1580 UUNET Technologies, Inc. 7843 429 684 Adelphia Corp. 7066 384 485 Virginia Polytechnic Institut 1239 364 969 Sprint 6198 360 457 BellSouth Network Solutions, 6197 358 480 BellSouth Network Solutions, 11305 318 341 Interland Incorporated 2386 308 511 AT&T Data Communications Serv 20115 295 426 Charter Communications 1 266 754 GENUITY 4814 263 273 China Telecom (Group) 27364 263 270 Armstrong Cable Services 3215 235 312 France Telecom Transpac 22927 235 296 TELEFONICA DE ARGENTINA Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:675 13:1 15:4 17:3 20:9 24:816 25:1 32:85 38:64 40:19 44:2 55:1 57:16 61:431 62:523 63:1886 64:1529 65:1928 66:2365 67:163 68:358 69:110 80:335 81:120 128:153 129:177 130:45 131:82 132:10 133:2 134:154 135:4 136:112 137:111 138:108 139:66 140:147 141:92 142:95 143:45 144:113 145:14 146:270 147:93 148:276 149:72 150:44 151:68 152:245 153:57 154:2 155:106 156:45 157:38 158:123 159:143 160:37 161:75 162:137 163:77 164:313 165:140 166:76 167:328 168:406 169:57 170:314 171:7 192:5346 193:2428 194:1995 195:990 196:458 198:3565 199:3457 200:2934 202:3703 203:5067 204:3070 205:2003 206:2403 207:2406 208:2651 209:2818 210:748 211:339 212:985 213:787 214:21 215:21 216:3299 217:624 218:86 219:12 220:57 End of report