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 15 Feb, 2002 Analysis Summary ---------------- BGP routing table entries examined: 107865 Prefixes after maximum aggregation: 71870 Unique aggregates announced to Internet: 51605 Total ASes present in the Internet Routing Table: 12551 Origin-only ASes present in the Internet Routing Table: 10860 Origin ASes announcing only one prefix: 4759 Transit ASes present in the Internet Routing Table: 1691 Transit-only ASes present in the Internet Routing Table: 55 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 19 Illegal AS announcements present in the Routing Table: 2 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 14 Number of addresses announced to Internet: 1172878088 Equivalent to 69 /8s, 232 /16s and 179 /24s Percentage of available address space announced: 31.6 Percentage of allocated address space announced: 59.9 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 71809 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17369 Total APNIC prefixes after maximum aggregation: 10575 Prefixes being announced from the APNIC address blocks: 15870 Unique aggregates announced from the APNIC address blocks: 9270 APNIC Region origin ASes present in the Internet Routing Table: 1446 APNIC Region origin ASes announcing only one prefix: 480 APNIC Region transit ASes present in the Internet Routing Table: 254 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 83565888 Equivalent to 4 /8s, 251 /16s and 29 /24s Percentage of available APNIC address space announced: 61.8 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72603 Total ARIN prefixes after maximum aggregation: 47272 Prefixes being announced from the ARIN address blocks: 51295 Unique aggregates announced from the ARIN address blocks: 17275 ARIN Region origin ASes present in the Internet Routing Table: 7429 ARIN Region origin ASes announcing only one prefix: 2313 ARIN Region transit ASes present in the Internet Routing Table: 768 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 186573124 Equivalent to 11 /8s, 30 /16s and 225 /24s Percentage of available ARIN address space announced: 69.5 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 ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 17893 Total RIPE prefixes after maximum aggregation: 14023 Prefixes being announced from the RIPE address blocks: 14698 Unique aggregates announced from the RIPE address blocks: 9419 RIPE Region origin ASes present in the Internet Routing Table: 3620 RIPE Region origin ASes announcing only one prefix: 1966 RIPE Region transit ASes present in the Internet Routing Table: 655 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 110064128 Equivalent to 6 /8s, 143 /16s and 114 /24s Percentage of available RIPE address space announced: 72.9 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 RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 1314 1258 959 Telstra Pty Ltd 4538 454 1162 16 China Education and Research 703 403 359 309 UUNET Technologies, Inc. 2907 399 1942 366 SINET Japan 2764 389 361 364 connect.com.au pty ltd 7474 300 289 203 Optus Communications Pty Ltd 4134 270 1874 98 Data Communications Bureau 4755 265 111 82 Videsh Sanchar Nigam Ltd. Aut 9394 243 112 3 CHINA RAILWAY Internet(CRNET) 4766 205 1393 145 Korea Internet Exchange for " 7539 161 204 155 TANet2, sponsored by NSC, TAI 9443 157 44 58 Primus Telecommunications 9768 146 385 88 Korea Telecom 4804 144 84 68 Microplex PTY LTD 9583 134 32 5 Satyam Infoway Ltd., 7657 122 22 85 The Internet Group Limited 4713 117 914 103 NTT Communications Corporatio 4780 115 186 40 Digital United Inc. 9800 115 4231 13 CHINA UNICOM 17676 115 1840 17 XTAGE CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1073 2617 860 UUNET Technologies, Inc. 3301 398 924 351 TeliaNet Sweden 1257 256 487 247 SWIPnet Swedish IP Network 3215 242 570 156 France Telecom / &Equant 680 232 2147 230 DFN-IP service G-WiN 5515 214 689 172 Sonera Finland Autonomous Sys 5400 200 83 95 Concert European Core Network 3320 196 1964 172 Deutsche Telekom AG 786 182 1874 182 The JANET IP Service 719 167 305 121 LANLINK autonomous system 8708 155 21 144 Romania Data Systems S.A. 2856 130 790 119 BTnet UK Regional network 3303 123 577 123 Swisscom Ltd 3269 117 693 71 TELECOM ITALIA 12302 115 7 36 MobiFon S.A. 8297 114 40 64 Teleglobe Autonomous System i 517 100 226 98 KPNQwest Germany GmbH 5511 94 193 83 France Telecom 1267 91 1471 41 Infostrada S.p.A. 2830 89 210 71 UUNET Dual-Homed customers ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2105 8429 1502 UUNET Technologies, Inc. 7018 1230 7498 929 AT&T 3908 828 1676 479 Supernet, Inc. 1 827 8103 599 BBN Planet 1239 806 3340 622 Sprint 4323 648 433 243 Time Warner Communications, I 852 615 1125 407 Telus Advanced Communications 7046 612 849 413 UUNET Technologies, Inc. 209 535 1908 305 Qwest 7132 456 510 164 Southwestern Bell Internet Se 2914 452 2193 420 Verio, Inc. 3549 438 821 224 Global Crossing 690 437 66 283 Merit Network 705 383 114 271 UUNET Technologies, Inc. 2149 374 209 313 Performance Systems, Inc. 3561 365 2220 320 Cable & Wireless USA 577 353 588 219 Bell Advanced Communications 7843 349 290 50 Adelphia Corp. 3741 344 730 235 The Internet Solution 2386 333 355 191 AT&T Data Communications Serv Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 454 438 China Education and Research 4323 648 405 Time Warner Communications, I 1221 1314 355 Telstra Pty Ltd 3908 828 349 Supernet, Inc. 7018 1230 301 AT&T 7843 349 299 Adelphia Corp. 7132 456 292 Southwestern Bell Internet Se 4151 304 288 USDA 11371 278 271 Rhythms NetConnections 9394 243 240 CHINA RAILWAY Internet(CRNET) 6347 316 238 SAVVIS Communications Corpora 209 535 230 Qwest 1 827 228 BBN Planet 3549 438 214 Global Crossing 702 1073 213 UUNET Technologies, Inc. 852 615 208 Telus Advanced Communications 4355 244 205 EarthLink, Inc. 6198 301 204 BellSouth Network Solutions, 1580 211 200 HQ, 5th Signal Command 7046 612 199 UUNET Technologies, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.201.0/24 1880 Stupi, house man's p 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 96.0.0.0/20 3549 Global Crossing 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 164.235.0.0/16 6025 US DOD NIC Unregistered 201.115.100.0/24 7018 AT&T Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:6 /10:7 /11:12 /12:37 /13:91 /14:231 /15:394 /16:7146 /17:1430 /18:2506 /19:7380 /20:6738 /21:4794 /22:7273 /23:8918 /24:59954 /25:220 /26:251 /27:121 /28:85 /29:85 /30:125 /31:0 /32:41 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1354 2105 UUNET Technologies, Inc. 1221 1168 1314 Telstra Pty Ltd 702 698 1073 UUNET Technologies, Inc. 7018 644 1230 AT&T 3908 582 828 Supernet, Inc. 4323 529 648 Time Warner Communications, I 1239 476 806 Sprint 7046 437 612 UUNET Technologies, Inc. 690 433 437 Merit Network 1 426 827 BBN Planet 852 374 615 Telus Advanced Communications 209 356 535 Qwest 2764 345 389 connect.com.au pty ltd 705 330 383 UUNET Technologies, Inc. 703 327 403 UUNET Technologies, Inc. 3549 306 438 Global Crossing 2149 283 374 Performance Systems, Inc. 6197 275 328 BellSouth Network Solutions, 7066 275 304 Virginia Polytechnic Institut 11371 272 278 Rhythms NetConnections Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:1 9:1 12:482 13:10 15:1 17:5 20:5 24:750 25:1 32:68 38:9 40:6 44:1 57:14 61:227 62:170 63:1886 64:1109 65:1031 66:695 67:33 68:5 80:188 81:4 128:63 129:120 130:21 131:57 132:11 133:3 134:128 135:10 136:245 137:106 138:148 139:47 140:162 141:61 142:67 143:37 144:155 145:12 146:217 147:154 148:146 149:91 150:40 151:45 152:302 153:32 154:7 155:83 156:77 157:82 158:81 159:88 160:24 161:54 162:102 163:114 164:94 165:124 166:222 167:168 168:114 169:49 170:292 171:2 192:5423 193:2116 194:2010 195:784 196:445 198:3736 199:3239 200:2319 201:1 202:2889 203:4436 204:3312 205:2163 206:2534 207:2619 208:2574 209:2829 210:531 211:158 212:882 213:558 214:9 215:18 216:2962 217:438 218:10 End of report