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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Oct 3 20:07:25 CEST 2003
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 at lists.apnic.net If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 04 Oct, 2003 Analysis Summary ---------------- BGP routing table entries examined: 128816 Prefixes after maximum aggregation: 80246 Unique aggregates announced to Internet: 62008 Total ASes present in the Internet Routing Table: 15914 Origin-only ASes present in the Internet Routing Table: 13804 Origin ASes announcing only one prefix: 6268 Transit ASes present in the Internet Routing Table: 2110 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 26 Illegal AS announcements present in the Routing Table: 6 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1245394468 Equivalent to 74 /8s, 59 /16s and 54 /24s Percentage of available address space announced: 33.6 Percentage of allocated address space announced: 60.0 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 57363 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22719 Total APNIC prefixes after maximum aggregation: 12835 Prefixes being announced from the APNIC address blocks: 21125 Unique aggregates announced from the APNIC address blocks: 12496 APNIC Region origin ASes present in the Internet Routing Table: 1901 APNIC Region origin ASes announcing only one prefix: 545 APNIC Region transit ASes present in the Internet Routing Table: 305 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 123245568 Equivalent to 7 /8s, 88 /16s and 148 /24s Percentage of available APNIC address space announced: 66.4 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: 77962 Total ARIN prefixes after maximum aggregation: 48518 Prefixes being announced from the ARIN address blocks: 55690 Unique aggregates announced from the ARIN address blocks: 17352 ARIN Region origin ASes present in the Internet Routing Table: 8711 ARIN Region origin ASes announcing only one prefix: 2999 ARIN Region transit ASes present in the Internet Routing Table: 846 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 197794336 Equivalent to 11 /8s, 202 /16s and 26 /24s Percentage of available ARIN address space announced: 73.7 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: 22692 Total RIPE prefixes after maximum aggregation: 16624 Prefixes being announced from the RIPE address blocks: 19201 Unique aggregates announced from the RIPE address blocks: 12952 RIPE Region origin ASes present in the Internet Routing Table: 4888 RIPE Region origin ASes announcing only one prefix: 2625 RIPE Region transit ASes present in the Internet Routing Table: 858 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 136945216 Equivalent to 8 /8s, 41 /16s and 158 /24s Percentage of available RIPE address space announced: 74.2 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 30720 - 31743 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: 5438 Total LACNIC prefixes after maximum aggregation: 2269 Prefixes being announced from the LACNIC address blocks: 4938 Unique aggregates announced from the LACNIC address blocks: 3242 LACNIC Region origin ASes present in the Internet Routing Table: 347 LACNIC Region origin ASes announcing only one prefix: 99 LACNIC Region transit ASes present in the Internet Routing Table: 74 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 12 Number of LACNIC addresses announced to Internet: 13330944 Equivalent to 0 /8s, 203 /16s and 106 /24s Percentage of available LACNIC address space announced: 39.7 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 969 1109 686 Telstra Pty Ltd 4755 385 133 74 Videsh Sanchar Nigam Ltd. Aut 2907 367 1863 344 SINET Japan 4134 364 2223 105 Data Communications Bureau 703 336 372 267 UUNET 2764 296 290 259 connect.com.au pty ltd 17557 289 21 141 Pakistan Telecom 9583 276 38 26 Satyam Infoway Ltd., 17676 271 3996 32 XTAGE CORPORATION 7474 260 305 206 Optus Communications Pty Ltd 4766 238 2461 173 Korea Internet Exchange for " 3786 235 773 203 DACOM Corporation 4538 209 1714 21 China Education and Research 9800 203 332 52 CHINA UNICOM 9942 191 69 112 COMindico Australia 9929 190 160 36 China Netcom Corp. 9498 184 20 17 BHARTI BT INTERNET LTD. 9443 183 58 83 Primus Telecommunications 17642 156 40 117 RequestDSL BGP AS# for Sydney 4739 141 58 130 Commerical Internet eXchange ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1461 8702 1015 UUNET Technologies, Inc. 7018 1403 7143 976 AT&T 6198 1218 330 195 BellSouth Network Solutions, 6197 988 469 232 BellSouth Network Solutions, 3908 930 1575 501 Supernet, Inc. 1239 910 3013 652 Sprint 18566 701 176 8 Covad Communications 4323 675 575 196 Time Warner Communications, I 3356 588 10796 491 Level 3 Communications, LLC 7843 530 472 136 Adelphia Corp. 852 518 1123 411 Telus Advanced Communications 209 503 2127 290 Qwest 7066 499 205 263 Virginia Polytechnic Institut 20115 465 202 283 Charter Communications 690 411 59 276 Merit Network 705 403 184 246 UUNET Technologies, Inc. 4355 394 334 109 EarthLink, Inc. 2386 378 507 195 AT&T Data Communications Serv 376 360 359 115 Reseau Interordinateurs Scien 6347 349 381 80 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 708 2104 587 UUNET - Commercial IP service 3301 294 1169 283 TeliaNet Sweden 3320 280 2005 240 Deutsche Telekom AG 8220 257 435 246 COLT Internet - International 1257 235 358 183 SWIPnet Swedish IP Network 680 232 2054 229 DFN-IP service G-WiN 719 193 307 123 LANLINK autonomous system 5400 187 174 134 BT Ignite European Backbone 3215 186 753 102 France Telecom Transpac 5515 186 779 148 Sonera Solution Autonomous Sy 786 179 1874 179 The JANET IP Service 8708 159 111 155 Romania Data Systems S.A. 3303 149 556 142 Swisscom Ltd 3246 128 376 126 Song Networks 12302 127 18 34 MobiFon S.A. 3269 119 853 65 TELECOM ITALIA 2856 113 1293 104 BTnet UK Regional network 25186 108 128 75 France Telecom Transpac's Tra 3352 97 824 33 Ibernet, Internet Access Netw 2647 95 4225 48 SITA LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 327 103 97 ImpSat 8151 235 367 123 UniNet S.A. de C.V. 7303 217 40 51 Telecom Argentina Stet-France 11172 187 79 44 Servicios Alestra S.A de C.V 16814 151 10 17 NSS, S.A. 10620 130 8 26 TVCABLE BOGOTA 6503 129 189 93 AVANTEL, S.A. 11340 103 3 36 Red Universitaria Nacional 11992 88 24 36 Integrated Systems 6147 86 70 19 Telefonica Del Peru 8065 81 8 17 Empresas Publicas de Medellin 6505 80 84 69 Global One Communicaoes Ltda 15311 77 16 39 Telefonica Empresas 6535 75 5 18 Chilesat Servicios Empresari 11830 75 22 24 Instituto Costarricense de El 4270 68 18 9 Red de Interconexion Universi 7927 66 6 40 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 1916 61 270 41 Fundacao de Amparo a Pesquisa 4926 57 4 48 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6198 1218 1023 BellSouth Network Solutions, 6197 988 756 BellSouth Network Solutions, 18566 701 693 Covad Communications 4323 675 479 Time Warner Communications, I 3908 930 429 Supernet, Inc. 7018 1403 427 AT&T 7843 530 394 Adelphia Corp. 4755 385 311 Videsh Sanchar Nigam Ltd. Aut 5668 308 293 Century Telephone 27364 314 291 Armstrong Cable Services 4355 394 285 EarthLink, Inc. 1221 969 283 Telstra Pty Ltd 22909 296 279 Comcast Cable Corporation 6347 349 269 SAVVIS Communications Corpora 4134 364 259 Data Communications Bureau 1239 910 258 Sprint 22773 288 251 Cox Communications, Inc. Atla 9583 276 250 Satyam Infoway Ltd., 376 360 245 Reseau Interordinateurs Scien 25844 243 241 Skadden, Arps, Slate, Meagher List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 65093 PRIVATE 148.170.28.0/22 7991 Savvis Communication 65093 PRIVATE 148.170.32.0/22 7991 Savvis Communication 65093 PRIVATE 148.170.92.0/22 7991 Savvis Communication 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom 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 /8:19 /9:4 /10:6 /11:12 /12:55 /13:99 /14:268 /15:470 /16:7425 /17:1757 /18:3147 /19:8463 /20:8872 /21:6542 /22:9348 /23:10731 /24:70974 /25:152 /26:202 /27:168 /28:20 /29:9 /30:52 /31:0 /32:21 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6198 1094 1218 BellSouth Network Solutions, 6197 847 988 BellSouth Network Solutions, 18566 695 701 Covad Communications 3908 588 930 Supernet, Inc. 7018 505 1403 AT&T 701 441 1461 UUNET Technologies, Inc. 702 424 708 UUNET - Commercial IP service 7066 394 499 Virginia Polytechnic Institut 690 371 411 Merit Network 1239 316 910 Sprint 20115 311 465 Charter Communications 27364 308 314 Armstrong Cable Services 3356 281 588 Level 3 Communications, LLC 5668 274 308 Century Telephone 25844 243 243 Skadden, Arps, Slate, Meagher 3320 219 280 Deutsche Telekom AG 4355 214 394 EarthLink, Inc. 7843 211 530 Adelphia Corp. 209 200 503 Qwest 14824 199 226 NewSouth Communications Corp. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:708 13:1 15:4 16:1 17:3 20:6 24:818 25:1 32:84 38:49 40:23 43:1 44:2 55:1 57:14 61:301 62:424 63:1884 64:1782 65:2115 66:2278 67:429 68:850 69:267 80:421 81:170 82:18 128:140 129:156 130:64 131:81 132:18 134:166 135:9 136:185 137:118 138:129 139:50 140:164 141:137 142:102 143:46 144:84 145:14 146:269 147:65 148:300 149:78 150:121 151:66 152:217 153:58 154:7 155:130 156:58 157:55 158:139 159:142 160:45 161:69 162:362 163:68 164:315 165:149 166:99 167:304 168:178 169:96 170:323 171:9 192:5329 193:2442 194:1976 195:1166 196:474 198:3617 199:2851 200:3026 202:4026 203:5259 204:2994 205:2060 206:2300 207:2515 208:2643 209:2756 210:936 211:371 212:930 213:924 214:15 215:22 216:3267 217:753 218:108 219:41 220:117 221:13 222:1 End of report
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