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 26 Apr, 2002 Analysis Summary ---------------- BGP routing table entries examined: 114228 Prefixes after maximum aggregation: 72863 Unique aggregates announced to Internet: 52629 Total ASes present in the Internet Routing Table: 12981 Origin-only ASes present in the Internet Routing Table: 11250 Origin ASes announcing only one prefix: 4932 Transit ASes present in the Internet Routing Table: 1731 Transit-only ASes present in the Internet Routing Table: 53 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 16 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 45 Number of addresses announced to Internet: 1167093980 Equivalent to 69 /8s, 144 /16s and 112 /24s Percentage of available address space announced: 31.5 Percentage of allocated address space announced: 58.7 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 47584 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18039 Total APNIC prefixes after maximum aggregation: 10872 Prefixes being announced from the APNIC address blocks: 16532 Unique aggregates announced from the APNIC address blocks: 9781 APNIC Region origin ASes present in the Internet Routing Table: 1494 APNIC Region origin ASes announcing only one prefix: 484 APNIC Region transit ASes present in the Internet Routing Table: 265 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 87679808 Equivalent to 5 /8s, 57 /16s and 227 /24s Percentage of available APNIC address space announced: 64.8 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: 77174 Total ARIN prefixes after maximum aggregation: 47685 Prefixes being announced from the ARIN address blocks: 55308 Unique aggregates announced from the ARIN address blocks: 16622 ARIN Region origin ASes present in the Internet Routing Table: 7659 ARIN Region origin ASes announcing only one prefix: 2414 ARIN Region transit ASes present in the Internet Routing Table: 757 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 191460804 Equivalent to 11 /8s, 105 /16s and 117 /24s Percentage of available ARIN address space announced: 71.3 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 - 26623 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: 19014 Total RIPE prefixes after maximum aggregation: 14306 Prefixes being announced from the RIPE address blocks: 15695 Unique aggregates announced from the RIPE address blocks: 10309 RIPE Region origin ASes present in the Internet Routing Table: 3774 RIPE Region origin ASes announcing only one prefix: 2034 RIPE Region transit ASes present in the Internet Routing Table: 692 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 108875824 Equivalent to 6 /8s, 125 /16s and 80 /24s Percentage of available RIPE address space announced: 72.1 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 1287 1210 946 Telstra Pty Ltd 4538 476 1194 17 China Education and Research 2907 431 1925 366 SINET Japan 703 419 339 326 UUNET Technologies, Inc. 2764 393 361 361 connect.com.au pty ltd 7474 304 291 209 Optus Communications Pty Ltd 4134 278 2018 94 Data Communications Bureau 9443 275 44 63 Primus Telecommunications 17557 258 18 105 Pakistan Telecom 4755 239 109 73 Videsh Sanchar Nigam Ltd. Aut 4766 221 1518 158 Korea Internet Exchange for " 7539 168 239 162 TANet2, sponsored by NSC, TAI 4804 161 84 66 Microplex PTY LTD 9583 160 32 5 Satyam Infoway Ltd., 9768 146 386 80 Korea Telecom 7657 125 22 87 The Internet Group Limited 17676 122 1952 9 XTAGE CORPORATION 4814 119 64 5 China Telecom (Group) - Beiji 4713 114 993 105 NTT Communications Corporatio 9800 114 4223 12 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1031 2577 847 UUNET Technologies, Inc. 3301 395 924 347 TeliaNet Sweden 790 311 103 41 KPNQwest Finland Oy 5515 275 761 173 Sonera Finland Autonomous Sys 3215 273 599 169 France Telecom / &Equant 680 231 2149 230 DFN-IP service G-WiN 3320 228 1946 175 Deutsche Telekom AG 1257 209 462 206 SWIPnet Swedish IP Network 5400 198 82 93 Concert European Core Network 786 179 1858 179 The JANET IP Service 719 163 289 118 LANLINK autonomous system 8708 142 22 135 Romania Data Systems S.A. 12302 131 9 50 MobiFon S.A. 2856 126 786 116 BTnet UK Regional network 8297 121 52 66 Teleglobe Autonomous System i 3269 117 694 71 TELECOM ITALIA 3303 117 546 116 Swisscom Ltd 5536 108 9 40 Internet Egypt Network 5511 104 193 91 France Telecom 517 101 226 97 KPNQwest Germany GmbH ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 4417 8497 1453 UUNET Technologies, Inc. 7018 1281 7522 943 AT&T 3908 861 1660 481 Supernet, Inc. 1239 816 3370 654 Sprint 1 806 8186 454 BBN Planet 7046 784 856 553 UUNET Technologies, Inc. 852 666 1148 424 Telus Advanced Communications 4323 634 436 256 Time Warner Communications, I 705 587 190 290 UUNET Technologies, Inc. 209 581 1999 324 Qwest 7132 569 604 140 Southwestern Bell Internet Se 3549 526 859 320 Global Crossing 690 473 70 306 Merit Network 7066 468 202 249 Virginia Polytechnic Institut 7843 455 338 58 Adelphia Corp. 2914 411 2146 406 Verio, Inc. 2149 349 191 291 Performance Systems, Inc. 6197 344 341 132 BellSouth Network Solutions, 3741 341 731 236 The Internet Solution 6347 325 370 79 SAVVIS Communications Corpora Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 476 459 China Education and Research 7132 569 429 Southwestern Bell Internet Se 7843 455 397 Adelphia Corp. 3908 861 380 Supernet, Inc. 4323 634 378 Time Warner Communications, I 1 806 352 BBN Planet 1221 1287 341 Telstra Pty Ltd 7018 1281 338 AT&T 705 587 297 UUNET Technologies, Inc. 11371 293 287 Rhythms NetConnections 4151 291 276 USDA 790 311 270 KPNQwest Finland Oy 209 581 257 Qwest 7029 265 250 Alltel Information Services, 6347 325 246 SAVVIS Communications Corpora 852 666 242 Telus Advanced Communications 7046 784 231 UUNET Technologies, Inc. 7066 468 219 Virginia Polytechnic Institut 4355 255 219 EarthLink, Inc. 6197 344 212 BellSouth Network Solutions, List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 112 UNALLOCATED 192.175.48.0/24 7500 A Root DNS Server in 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65027 PRIVATE 209.239.80.0/24 11042 Orion Network System Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 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. 153.147.0.0/16 3561 Cable & Wireless USA 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.31.126.0/23 1103 SURFnet BV 192.31.128.0/21 1103 SURFnet BV 192.44.0.0/19 702 UUNET Technologies, Inc. 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.1.0/24 5515 Sonera Finland Autonomous Sys 192.83.2.0/24 5515 Sonera Finland Autonomous Sys 192.83.8.0/21 5515 Sonera Finland Autonomous Sys 192.83.14.0/24 5515 Sonera Finland Autonomous Sys 192.83.16.0/20 5515 Sonera Finland Autonomous Sys 192.83.25.0/24 5515 Sonera Finland Autonomous Sys 192.83.32.0/19 5515 Sonera Finland Autonomous Sys 192.83.96.0/22 5515 Sonera Finland Autonomous Sys 192.83.100.0/24 5515 Sonera Finland Autonomous Sys 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.135.248.0/23 109 Cisco Systems, Inc. 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.152.213.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:7 /10:7 /11:13 /12:34 /13:86 /14:233 /15:406 /16:7187 /17:1425 /18:2597 /19:7483 /20:7033 /21:5022 /22:7786 /23:9566 /24:64573 /25:211 /26:189 /27:80 /28:90 /29:53 /30:90 /31:0 /32:38 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 2949 4417 UUNET Technologies, Inc. 702 644 1031 UUNET Technologies, Inc. 3908 445 861 Supernet, Inc. 690 426 473 Merit Network 7046 413 784 UUNET Technologies, Inc. 7066 373 468 Virginia Polytechnic Institut 705 371 587 UUNET Technologies, Inc. 7018 329 1281 AT&T 790 289 311 KPNQwest Finland Oy 7843 273 455 Adelphia Corp. 209 271 581 Qwest 7029 250 265 Alltel Information Services, 11371 245 293 Rhythms NetConnections 6197 244 344 BellSouth Network Solutions, 1 238 806 BBN Planet 3301 236 395 TeliaNet Sweden 3549 229 526 Global Crossing 6198 228 304 BellSouth Network Solutions, 6517 222 247 Yipes Communications, Inc. 1239 208 816 Sprint Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 4:2 9:1 12:495 13:10 15:2 17:7 20:2 24:756 25:1 32:67 38:8 40:6 44:1 57:14 61:200 62:196 63:3989 64:1214 65:1252 66:876 67:243 68:7 80:236 81:16 128:59 129:137 130:22 131:47 132:12 133:3 134:127 135:9 136:312 137:92 138:148 139:49 140:186 141:143 142:82 143:38 144:140 145:12 146:224 147:136 148:161 149:92 150:39 151:59 152:305 153:33 154:3 155:99 156:76 157:122 158:69 159:127 160:24 161:56 162:152 163:105 164:266 165:127 166:225 167:169 168:111 169:52 170:302 171:2 192:5471 193:2529 194:2105 195:812 196:431 198:3743 199:3203 200:2417 202:3134 203:4524 204:3263 205:2166 206:2551 207:2644 208:2619 209:2723 210:649 211:210 212:887 213:595 214:9 215:18 216:3038 217:461 218:15 End of report