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 04 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 123590 Prefixes after maximum aggregation: 78340 Unique aggregates announced to Internet: 58939 Total ASes present in the Internet Routing Table: 14931 Origin-only ASes present in the Internet Routing Table: 12943 Origin ASes announcing only one prefix: 5863 Transit ASes present in the Internet Routing Table: 1988 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.7 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: 22 Number of addresses announced to Internet: 1222409184 Equivalent to 72 /8s, 220 /16s and 123 /24s Percentage of available address space announced: 33.0 Percentage of allocated address space announced: 59.9 Percentage of available address space allocated: 55.0 Total number of prefixes smaller than registry allocations: 58485 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 20488 Total APNIC prefixes after maximum aggregation: 12277 Prefixes being announced from the APNIC address blocks: 18943 Unique aggregates announced from the APNIC address blocks: 11702 APNIC Region origin ASes present in the Internet Routing Table: 1762 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 285 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 108879360 Equivalent to 6 /8s, 125 /16s and 94 /24s Percentage of available APNIC address space announced: 64.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 76495 Total ARIN prefixes after maximum aggregation: 48164 Prefixes being announced from the ARIN address blocks: 54710 Unique aggregates announced from the ARIN address blocks: 16696 ARIN Region origin ASes present in the Internet Routing Table: 8289 ARIN Region origin ASes announcing only one prefix: 2804 ARIN Region transit ASes present in the Internet Routing Table: 795 Average ARIN Region AS path length visible: 4.5 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190081984 Equivalent to 11 /8s, 84 /16s and 107 /24s Percentage of available ARIN address space announced: 70.8 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: 21353 Total RIPE prefixes after maximum aggregation: 15689 Prefixes being announced from the RIPE address blocks: 17870 Unique aggregates announced from the RIPE address blocks: 11931 RIPE Region origin ASes present in the Internet Routing Table: 4480 RIPE Region origin ASes announcing only one prefix: 2452 RIPE Region transit ASes present in the Internet Routing Table: 811 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 128463104 Equivalent to 7 /8s, 168 /16s and 49 /24s Percentage of available RIPE address space announced: 76.6 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: 5249 Total LACNIC prefixes after maximum aggregation: 2210 Prefixes being announced from the LACNIC address blocks: 4645 Unique aggregates announced from the LACNIC address blocks: 2939 LACNIC Region origin ASes present in the Internet Routing Table: 329 LACNIC Region origin ASes announcing only one prefix: 85 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 12407040 Equivalent to 0 /8s, 189 /16s and 81 /24s Percentage of available LACNIC address space announced: 74.0 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1101 1105 804 Telstra Pty Ltd 703 397 367 313 UUNET 2907 381 1976 360 SINET Japan 2764 318 340 286 connect.com.au pty ltd 7474 271 276 207 Optus Communications Pty Ltd 4814 269 79 15 China Telecom (Group) 3786 245 775 212 DACOM Corporation 4134 240 2051 127 Data Communications Bureau 17676 237 3654 25 XTAGE CORPORATION 4755 230 135 75 Videsh Sanchar Nigam Ltd. Aut 17557 228 17 119 Pakistan Telecom 9583 219 33 14 Satyam Infoway Ltd., 4766 211 2078 158 Korea Internet Exchange for " 9443 179 58 78 Primus Telecommunications 9800 174 226 48 CHINA UNICOM 9238 134 8 21 TATA ISP 4716 128 731 122 TTnet 4739 128 57 117 Commerical Internet eXchange 9498 127 9 10 BHARTI BT INTERNET LTD. 9768 125 384 64 Korea Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1581 8873 1117 UUNET Technologies, Inc. 7018 1352 7153 936 AT&T 3908 979 1571 475 Supernet, Inc. 1239 968 3139 684 Sprint 1 773 2845 490 GENUITY 7132 727 6084 408 Southwestern Bell Internet Se 189 706 341 291 Genuity 7843 624 400 166 Adelphia Corp. 4151 612 691 58 USDA 3561 587 2353 338 Cable & Wireless USA 4323 566 491 178 Time Warner Communications, I 852 550 1107 433 Telus Advanced Communications 18566 534 124 7 Covad Communications 209 529 2089 337 Qwest 690 502 73 318 Merit Network 2386 500 481 271 AT&T Data Communications Serv 7066 485 204 255 Virginia Polytechnic Institut 6197 475 338 196 BellSouth Network Solutions, 705 463 188 207 UUNET Technologies, Inc. 6198 458 226 178 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 782 2221 649 UUNET - Commercial IP service 3215 316 851 175 France Telecom Transpac 3301 311 1174 301 TeliaNet Sweden 3320 267 1996 230 Deutsche Telekom AG 680 232 2053 229 DFN-IP service G-WiN 1257 216 328 190 SWIPnet Swedish IP Network 719 195 307 125 LANLINK autonomous system 5515 195 779 168 Sonera Solution Autonomous Sy 5400 194 93 108 BT Ignite European Backbone 786 180 1874 180 The JANET IP Service 20858 155 17 3 This AS will be used to conne 8708 154 42 150 Romania Data Systems S.A. 3303 145 517 144 Swisscom Ltd 8220 137 215 128 COLT Internet - International 12302 124 18 31 MobiFon S.A. 2856 119 1298 109 BTnet UK Regional network 3269 112 754 62 TELECOM ITALIA 3246 110 384 107 Song Networks 3233 107 11 12 RNC - Romanian Natioanal R&D 3352 105 734 32 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 295 99 106 ImpSat 7303 241 36 65 Telecom Argentina Stet-France 8151 213 333 115 UniNet S.A. de C.V. 11172 164 66 33 Servicios Alestra S.A de C.V 6503 156 207 109 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 11340 109 3 37 Red Universitaria Nacional 10620 107 7 31 TVCABLE BOGOTA 11992 90 9 36 Integrated Systems 6147 77 62 20 Telefonica Del Peru 6535 73 5 21 Chilesat Servicios Empresari 8065 73 6 18 Empresas Publicas de Medellin 15311 71 27 36 Telefonica Empresas 1916 70 304 44 Fundacao de Amparo a Pesquisa 4270 69 18 10 Red de Interconexion Universi 13999 68 36 8 Mega Cable S.A. de C.V. 11830 65 4 26 Instituto Costarricense de El 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 40 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 612 554 USDA 18566 534 527 Covad Communications 3908 979 504 Supernet, Inc. 7843 624 458 Adelphia Corp. 7018 1352 416 AT&T 189 706 415 Genuity 4323 566 388 Time Warner Communications, I 7132 727 319 Southwestern Bell Internet Se 1221 1101 297 Telstra Pty Ltd 6347 370 288 SAVVIS Communications Corpora 1239 968 284 Sprint 1 773 283 GENUITY 22927 295 281 TELEFONICA DE ARGENTINA 6198 458 280 BellSouth Network Solutions, 6197 475 279 BellSouth Network Solutions, 4355 379 277 EarthLink, Inc. 705 463 256 UUNET Technologies, Inc. 4814 269 254 China Telecom (Group) 3561 587 249 Cable & Wireless USA 27364 266 248 Armstrong Cable Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64500 RESERVED 192.83.252.0/24 297 NASA Science Network 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 65501 PRIVATE 200.73.26.0/24 18747 IFX Communication Ve 65000 PRIVATE 202.172.216.0/24 9226 AS for Singapore Int 65000 PRIVATE 202.172.217.0/24 9226 AS for Singapore Int 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 192.75.199.0/24 25745 Alentus Corporation 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 192.158.249.0/24 27319 INTERNET SOFTWARE CONSORTIUM, 192.158.251.0/24 27321 INTERNET SOFTWARE CONSORTIUM, 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 /9:5 /10:8 /11:13 /12:47 /13:92 /14:248 /15:460 /16:7375 /17:1644 /18:2953 /19:8262 /20:8192 /21:5911 /22:8840 /23:10653 /24:68292 /25:173 /26:192 /27:52 /28:34 /29:20 /30:60 /31:0 /32:46 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 627 706 Genuity 3908 615 979 Supernet, Inc. 18566 529 534 Covad Communications 702 485 782 UUNET - Commercial IP service 701 469 1581 UUNET Technologies, Inc. 7018 468 1352 AT&T 690 451 502 Merit Network 7066 384 485 Virginia Polytechnic Institut 7843 374 624 Adelphia Corp. 1239 373 968 Sprint 6198 362 458 BellSouth Network Solutions, 6197 354 475 BellSouth Network Solutions, 11305 317 340 Interland Incorporated 2386 299 500 AT&T Data Communications Serv 20115 298 425 Charter Communications 22927 294 295 TELEFONICA DE ARGENTINA 6140 282 295 ImpSat 1 277 773 GENUITY 27364 259 266 Armstrong Cable Services 7303 240 241 Telecom Argentina Stet-France Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:670 13:1 15:4 17:2 20:10 24:789 25:1 32:86 38:65 40:18 44:2 55:1 57:17 61:461 62:517 63:1888 64:1516 65:1907 66:2338 67:176 68:322 69:79 80:333 81:123 128:150 129:176 130:45 131:83 132:11 133:11 134:146 135:4 136:113 137:111 138:105 139:66 140:149 141:88 142:94 143:48 144:101 145:16 146:268 147:90 148:278 149:73 150:43 151:66 152:248 153:53 154:2 155:119 156:46 157:44 158:124 159:140 160:34 161:60 162:129 163:78 164:309 165:135 166:75 167:325 168:408 169:56 170:314 171:6 192:5354 193:2399 194:1986 195:991 196:478 198:3563 199:3293 200:2884 202:3541 203:4995 204:3064 205:2015 206:2390 207:2395 208:2668 209:2916 210:736 211:337 212:1015 213:773 214:20 215:21 216:3326 217:613 218:83 219:11 220:57 End of report
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Routing Table Analysis