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 29 Mar, 2002 Analysis Summary ---------------- BGP routing table entries examined: 110532 Prefixes after maximum aggregation: 72321 Unique aggregates announced to Internet: 53586 Total ASes present in the Internet Routing Table: 12821 Origin-only ASes present in the Internet Routing Table: 11097 Origin ASes announcing only one prefix: 4863 Transit ASes present in the Internet Routing Table: 1724 Transit-only ASes present in the Internet Routing Table: 54 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 11 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: 1163171560 Equivalent to 69 /8s, 84 /16s and 150 /24s Percentage of available address space announced: 31.4 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 74196 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18278 Total APNIC prefixes after maximum aggregation: 10781 Prefixes being announced from the APNIC address blocks: 16756 Unique aggregates announced from the APNIC address blocks: 10127 APNIC Region origin ASes present in the Internet Routing Table: 1471 APNIC Region origin ASes announcing only one prefix: 477 APNIC Region transit ASes present in the Internet Routing Table: 262 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 82277440 Equivalent to 4 /8s, 231 /16s and 116 /24s Percentage of available APNIC address space announced: 60.8 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: 73730 Total ARIN prefixes after maximum aggregation: 47319 Prefixes being announced from the ARIN address blocks: 52165 Unique aggregates announced from the ARIN address blocks: 17506 ARIN Region origin ASes present in the Internet Routing Table: 7584 ARIN Region origin ASes announcing only one prefix: 2390 ARIN Region transit ASes present in the Internet Routing Table: 769 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 184069572 Equivalent to 10 /8s, 248 /16s and 173 /24s Percentage of available ARIN address space announced: 68.6 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: 18518 Total RIPE prefixes after maximum aggregation: 14221 Prefixes being announced from the RIPE address blocks: 15231 Unique aggregates announced from the RIPE address blocks: 10125 RIPE Region origin ASes present in the Internet Routing Table: 3711 RIPE Region origin ASes announcing only one prefix: 1996 RIPE Region transit ASes present in the Internet Routing Table: 677 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 108317472 Equivalent to 6 /8s, 116 /16s and 203 /24s Percentage of available RIPE address space announced: 71.7 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 1284 1211 944 Telstra Pty Ltd 4538 464 1194 17 China Education and Research 2907 437 1895 371 SINET Japan 703 416 336 324 UUNET Technologies, Inc. 2764 385 361 360 connect.com.au pty ltd 9394 331 113 4 CHINA RAILWAY Internet(CRNET) 7474 312 290 211 Optus Communications Pty Ltd 4755 285 111 81 Videsh Sanchar Nigam Ltd. Aut 4134 276 1978 98 Data Communications Bureau 9443 276 44 64 Primus Telecommunications 17557 256 18 98 Pakistan Telecom 4766 209 1516 147 Korea Internet Exchange for " 7539 169 256 162 TANet2, sponsored by NSC, TAI 4804 164 84 67 Microplex PTY LTD 9583 151 32 5 Satyam Infoway Ltd., 9768 142 385 82 Korea Telecom 4780 129 186 39 Digital United Inc. 7657 122 22 85 The Internet Group Limited 4713 120 891 104 NTT Communications Corporatio 17676 119 1904 12 XTAGE CORPORATION RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1029 2596 844 UUNET Technologies, Inc. 3301 389 923 344 TeliaNet Sweden 3215 267 581 175 France Telecom / &Equant 5515 264 696 169 Sonera Finland Autonomous Sys 680 232 2149 231 DFN-IP service G-WiN 1257 225 472 221 SWIPnet Swedish IP Network 3320 225 1964 173 Deutsche Telekom AG 5400 197 84 94 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 163 289 118 LANLINK autonomous system 8708 160 23 148 Romania Data Systems S.A. 2856 129 788 118 BTnet UK Regional network 12302 125 8 46 MobiFon S.A. 3303 124 565 123 Swisscom Ltd 3269 117 694 71 TELECOM ITALIA 8297 117 53 67 Teleglobe Autonomous System i 5511 103 194 91 France Telecom 517 102 226 98 KPNQwest Germany GmbH 9051 101 6 25 INCONET Autonomous System 2874 96 84 36 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2085 8445 1448 UUNET Technologies, Inc. 7018 1238 7513 919 AT&T 3908 849 1675 479 Supernet, Inc. 1239 813 3371 636 Sprint 1 811 8123 608 BBN Planet 852 629 1112 416 Telus Advanced Communications 4323 629 436 252 Time Warner Communications, I 7046 602 837 373 UUNET Technologies, Inc. 209 557 1993 323 Qwest 7132 522 552 161 Southwestern Bell Internet Se 3549 513 860 265 Global Crossing 690 454 67 297 Merit Network 7843 421 298 47 Adelphia Corp. 2914 415 2162 412 Verio, Inc. 705 374 115 266 UUNET Technologies, Inc. 2149 367 208 305 Performance Systems, Inc. 3741 341 731 234 The Internet Solution 7066 336 203 251 Virginia Polytechnic Institut 6197 332 217 173 BellSouth Network Solutions, 3561 321 2152 288 Cable & Wireless USA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 464 447 China Education and Research 4323 629 377 Time Warner Communications, I 7843 421 374 Adelphia Corp. 3908 849 370 Supernet, Inc. 7132 522 361 Southwestern Bell Internet Se 1221 1284 340 Telstra Pty Ltd 9394 331 327 CHINA RAILWAY Internet(CRNET) 7018 1238 319 AT&T 4151 308 292 USDA 6198 311 280 BellSouth Network Solutions, 4565 311 277 Epoch Networks 11371 277 271 Rhythms NetConnections 3549 513 248 Global Crossing 6347 317 238 SAVVIS Communications Corpora 209 557 234 Qwest 7029 246 231 Alltel Information Services, 7046 602 229 UUNET Technologies, Inc. 852 629 213 Telus Advanced Communications 9443 276 212 Primus Telecommunications 4355 245 209 EarthLink, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 23279 UNALLOCATED 63.238.4.0/24 209 Qwest 64516 PRIVATE 137.164.227.0/24 2150 California State Uni 64516 PRIVATE 137.164.228.0/22 2150 California State Uni 112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises 65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 23279 UNALLOCATED 216.207.52.0/24 209 Qwest 23279 UNALLOCATED 216.207.53.0/24 209 Qwest 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 /8:18 /9:5 /10:8 /11:14 /12:35 /13:88 /14:231 /15:402 /16:7182 /17:1398 /18:2570 /19:7438 /20:6904 /21:4952 /22:7580 /23:9158 /24:61569 /25:222 /26:270 /27:118 /28:102 /29:105 /30:126 /31:0 /32:37 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1355 2085 UUNET Technologies, Inc. 1221 1143 1284 Telstra Pty Ltd 702 654 1029 UUNET Technologies, Inc. 7018 647 1238 AT&T 3908 581 849 Supernet, Inc. 4323 498 629 Time Warner Communications, I 1239 470 813 Sprint 690 449 454 Merit Network 7046 415 602 UUNET Technologies, Inc. 1 405 811 BBN Planet 852 381 629 Telus Advanced Communications 3549 373 513 Global Crossing 209 366 557 Qwest 2764 340 385 connect.com.au pty ltd 703 336 416 UUNET Technologies, Inc. 705 322 374 UUNET Technologies, Inc. 9394 317 331 CHINA RAILWAY Internet(CRNET) 7066 307 336 Virginia Polytechnic Institut 4565 286 311 Epoch Networks 2149 283 367 Performance Systems, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 4:7 9:1 12:490 13:10 15:2 17:6 20:2 24:750 25:1 32:68 38:8 40:6 44:1 57:14 61:312 62:152 63:1904 64:1180 65:1111 66:787 67:57 68:4 80:224 81:7 128:64 129:128 130:23 131:56 132:11 133:3 134:126 135:10 136:314 137:97 138:138 139:49 140:187 141:90 142:83 143:38 144:141 145:11 146:220 147:147 148:138 149:91 150:39 151:46 152:317 153:33 154:1 155:108 156:76 157:118 158:72 159:125 160:27 161:55 162:140 163:104 164:134 165:122 166:220 167:193 168:100 169:52 170:288 171:2 192:5436 193:2267 194:2095 195:795 196:429 198:3723 199:3202 200:2395 201:1 202:3119 203:4574 204:3244 205:2166 206:2565 207:2672 208:2572 209:2813 210:590 211:208 212:876 213:597 214:9 215:18 216:3084 217:462 218:15 End of report