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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Sep 26 20:07:43 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 27 Sep, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127855 Prefixes after maximum aggregation: 79965 Unique aggregates announced to Internet: 61682 Total ASes present in the Internet Routing Table: 15876 Origin-only ASes present in the Internet Routing Table: 13780 Origin ASes announcing only one prefix: 6245 Transit ASes present in the Internet Routing Table: 2096 Transit-only ASes present in the Internet Routing Table: 69 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: 1227349284 Equivalent to 73 /8s, 39 /16s and 221 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56396 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22707 Total APNIC prefixes after maximum aggregation: 12775 Prefixes being announced from the APNIC address blocks: 21124 Unique aggregates announced from the APNIC address blocks: 12364 APNIC Region origin ASes present in the Internet Routing Table: 1897 APNIC Region origin ASes announcing only one prefix: 544 APNIC Region transit ASes present in the Internet Routing Table: 306 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 122592768 Equivalent to 7 /8s, 78 /16s and 158 /24s Percentage of available APNIC address space announced: 66.1 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: 77126 Total ARIN prefixes after maximum aggregation: 48337 Prefixes being announced from the ARIN address blocks: 54900 Unique aggregates announced from the ARIN address blocks: 17269 ARIN Region origin ASes present in the Internet Routing Table: 8703 ARIN Region origin ASes announcing only one prefix: 2995 ARIN Region transit ASes present in the Internet Routing Table: 836 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 197256224 Equivalent to 11 /8s, 193 /16s and 228 /24s Percentage of available ARIN address space announced: 73.5 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: 22594 Total RIPE prefixes after maximum aggregation: 16569 Prefixes being announced from the RIPE address blocks: 19105 Unique aggregates announced from the RIPE address blocks: 12919 RIPE Region origin ASes present in the Internet Routing Table: 4859 RIPE Region origin ASes announcing only one prefix: 2605 RIPE Region transit ASes present in the Internet Routing Table: 850 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 136574784 Equivalent to 8 /8s, 35 /16s and 247 /24s Percentage of available RIPE address space announced: 74.0 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: 5423 Total LACNIC prefixes after maximum aggregation: 2284 Prefixes being announced from the LACNIC address blocks: 4890 Unique aggregates announced from the LACNIC address blocks: 3181 LACNIC Region origin ASes present in the Internet Routing Table: 348 LACNIC Region origin ASes announcing only one prefix: 101 LACNIC Region transit ASes present in the Internet Routing Table: 73 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 13298944 Equivalent to 0 /8s, 202 /16s and 237 /24s Percentage of available LACNIC address space announced: 39.6 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 974 1110 690 Telstra Pty Ltd 4755 408 135 76 Videsh Sanchar Nigam Ltd. Aut 4134 388 2230 109 Data Communications Bureau 2907 374 1879 348 SINET Japan 703 333 372 265 UUNET 2764 297 322 260 connect.com.au pty ltd 17557 289 21 138 Pakistan Telecom 7474 269 306 209 Optus Communications Pty Ltd 17676 265 3980 26 XTAGE CORPORATION 9583 261 38 27 Satyam Infoway Ltd., 4766 238 2461 173 Korea Internet Exchange for " 3786 235 773 203 DACOM Corporation 9800 203 332 52 CHINA UNICOM 9942 188 69 110 COMindico Australia 9929 187 160 36 China Netcom Corp. 9443 183 58 83 Primus Telecommunications 9498 183 20 16 BHARTI BT INTERNET LTD. 4538 177 1634 23 China Education and Research 17642 157 40 118 RequestDSL BGP AS# for Sydney 4837 140 1058 88 chinanet IDC center beijing n ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1462 8719 1018 UUNET Technologies, Inc. 7018 1401 7156 977 AT&T 6197 966 443 245 BellSouth Network Solutions, 3908 916 1573 492 Supernet, Inc. 1239 905 3031 651 Sprint 18566 692 176 8 Covad Communications 4323 670 575 194 Time Warner Communications, I 3356 564 10744 473 Level 3 Communications, LLC 7843 529 466 134 Adelphia Corp. 852 517 1123 410 Telus Advanced Communications 209 501 2127 289 Qwest 6198 498 330 193 BellSouth Network Solutions, 7066 489 205 263 Virginia Polytechnic Institut 20115 475 205 296 Charter Communications 690 411 59 276 Merit Network 705 409 185 250 UUNET Technologies, Inc. 4355 396 334 109 EarthLink, Inc. 2386 375 507 194 AT&T Data Communications Serv 376 361 359 115 Reseau Interordinateurs Scien 6347 356 397 81 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 710 2121 589 UUNET - Commercial IP service 3301 296 1169 283 TeliaNet Sweden 3320 272 1989 232 Deutsche Telekom AG 8220 256 434 245 COLT Internet - International 680 232 2054 229 DFN-IP service G-WiN 1257 228 358 183 SWIPnet Swedish IP Network 719 193 307 123 LANLINK autonomous system 3215 188 737 106 France Telecom Transpac 5515 186 779 148 Sonera Solution Autonomous Sy 5400 183 173 133 BT Ignite European Backbone 786 179 1874 179 The JANET IP Service 8708 156 110 153 Romania Data Systems S.A. 3303 148 540 141 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 3246 126 376 124 Song Networks 3269 119 853 65 TELECOM ITALIA 2856 113 1293 104 BTnet UK Regional network 25186 103 128 71 France Telecom Transpac's Tra 3352 98 824 34 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 340 104 101 ImpSat 8151 234 367 122 UniNet S.A. de C.V. 7303 212 39 62 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 91 25 37 Integrated Systems 6147 84 70 19 Telefonica Del Peru 8065 82 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 75 14 38 Telefonica Empresas 11830 73 21 28 Instituto Costarricense de El 4270 67 17 8 Red de Interconexion Universi 7927 67 6 40 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 1916 61 270 41 Fundacao de Amparo a Pesquisa 7984 59 12 40 Global One Colombia 4926 57 4 48 Telintar S.A. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6197 966 721 BellSouth Network Solutions, 18566 692 684 Covad Communications 4323 670 476 Time Warner Communications, I 7018 1401 424 AT&T 3908 916 424 Supernet, Inc. 7843 529 395 Adelphia Corp. 4755 408 332 Videsh Sanchar Nigam Ltd. Aut 6198 498 305 BellSouth Network Solutions, 27364 314 291 Armstrong Cable Services 4355 396 287 EarthLink, Inc. 5668 302 287 Century Telephone 1221 974 284 Telstra Pty Ltd 4134 388 279 Data Communications Bureau 22909 297 279 Comcast Cable Corporation 6347 356 275 SAVVIS Communications Corpora 1239 905 254 Sprint 22773 285 250 Cox Communications, Inc. Atla 376 361 246 Reseau Interordinateurs Scien 25844 243 241 Skadden, Arps, Slate, Meagher 6140 340 239 ImpSat 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 /8:18 /9:4 /10:6 /11:12 /12:55 /13:97 /14:265 /15:470 /16:7448 /17:1761 /18:3140 /19:8539 /20:8842 /21:6480 /22:9294 /23:10653 /24:70142 /25:150 /26:203 /27:167 /28:25 /29:9 /30:53 /31:0 /32:22 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6197 827 966 BellSouth Network Solutions, 18566 686 692 Covad Communications 3908 577 916 Supernet, Inc. 7018 504 1401 AT&T 701 437 1462 UUNET Technologies, Inc. 702 426 710 UUNET - Commercial IP service 6198 384 498 BellSouth Network Solutions, 7066 384 489 Virginia Polytechnic Institut 690 371 411 Merit Network 20115 318 475 Charter Communications 1239 315 905 Sprint 27364 308 314 Armstrong Cable Services 3356 277 564 Level 3 Communications, LLC 5668 269 302 Century Telephone 25844 243 243 Skadden, Arps, Slate, Meagher 4355 214 396 EarthLink, Inc. 7843 213 529 Adelphia Corp. 3320 211 272 Deutsche Telekom AG 209 199 501 Qwest 14824 199 226 NewSouth Communications Corp. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:707 13:1 15:4 16:1 17:3 20:6 24:826 25:1 32:84 38:47 40:23 43:1 44:2 55:1 57:14 61:325 62:416 63:1878 64:1789 65:2054 66:2201 67:332 68:421 69:265 80:422 81:133 82:17 128:143 129:167 130:61 131:84 132:18 133:1 134:169 135:9 136:186 137:116 138:129 139:49 140:163 141:138 142:101 143:44 144:88 145:14 146:276 147:61 148:299 149:78 150:121 151:66 152:212 153:58 154:7 155:128 156:58 157:54 158:134 159:140 160:45 161:69 162:362 163:75 164:314 165:147 166:102 167:305 168:176 169:97 170:325 171:9 192:5335 193:2451 194:1976 195:1158 196:470 198:3599 199:2842 200:3007 202:3982 203:5305 204:2993 205:2039 206:2329 207:2499 208:2565 209:2720 210:923 211:374 212:966 213:932 214:16 215:22 216:3267 217:728 218:107 219:35 220:116 221:11 222:1 End of report
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