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 19 Apr, 2002 Analysis Summary ---------------- BGP routing table entries examined: 111025 Prefixes after maximum aggregation: 72697 Unique aggregates announced to Internet: 53886 Total ASes present in the Internet Routing Table: 12943 Origin-only ASes present in the Internet Routing Table: 11216 Origin ASes announcing only one prefix: 4906 Transit ASes present in the Internet Routing Table: 1727 Transit-only ASes present in the Internet Routing Table: 52 Average AS path length visible in the Internet Routing Table: 5.4 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: 46 Number of addresses announced to Internet: 1182976764 Equivalent to 70 /8s, 130 /16s and 202 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 59.5 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 44543 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18004 Total APNIC prefixes after maximum aggregation: 10861 Prefixes being announced from the APNIC address blocks: 16520 Unique aggregates announced from the APNIC address blocks: 10294 APNIC Region origin ASes present in the Internet Routing Table: 1491 APNIC Region origin ASes announcing only one prefix: 483 APNIC Region transit ASes present in the Internet Routing Table: 266 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 83586880 Equivalent to 4 /8s, 251 /16s and 111 /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: 74393 Total ARIN prefixes after maximum aggregation: 47598 Prefixes being announced from the ARIN address blocks: 52613 Unique aggregates announced from the ARIN address blocks: 17535 ARIN Region origin ASes present in the Internet Routing Table: 7648 ARIN Region origin ASes announcing only one prefix: 2406 ARIN Region transit ASes present in the Internet Routing Table: 758 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 185550788 Equivalent to 11 /8s, 15 /16s and 71 /24s Percentage of available ARIN address space announced: 69.1 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: 18628 Total RIPE prefixes after maximum aggregation: 14238 Prefixes being announced from the RIPE address blocks: 15330 Unique aggregates announced from the RIPE address blocks: 10164 RIPE Region origin ASes present in the Internet Routing Table: 3751 RIPE Region origin ASes announcing only one prefix: 2017 RIPE Region transit ASes present in the Internet Routing Table: 685 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 108754864 Equivalent to 6 /8s, 123 /16s and 119 /24s Percentage of available RIPE address space announced: 72.0 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 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 1293 1211 948 Telstra Pty Ltd 4538 474 1194 17 China Education and Research 2907 439 1959 371 SINET Japan 703 416 339 324 UUNET Technologies, Inc. 2764 396 362 364 connect.com.au pty ltd 7474 299 291 208 Optus Communications Pty Ltd 9443 275 44 63 Primus Telecommunications 4134 273 1986 93 Data Communications Bureau 17557 255 17 104 Pakistan Telecom 4755 251 109 76 Videsh Sanchar Nigam Ltd. Aut 4766 219 1516 157 Korea Internet Exchange for " 7539 168 239 163 TANet2, sponsored by NSC, TAI 4804 161 84 66 Microplex PTY LTD 9583 154 32 5 Satyam Infoway Ltd., 9768 145 385 79 Korea Telecom 7657 125 22 87 The Internet Group Limited 17676 120 1920 7 XTAGE CORPORATION 4814 117 64 4 China Telecom (Group) - Beiji 4713 115 994 106 NTT Communications Corporatio 4780 114 186 39 Digital United Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1037 2557 851 UUNET Technologies, Inc. 3301 391 923 343 TeliaNet Sweden 3215 271 598 168 France Telecom / &Equant 5515 266 760 171 Sonera Finland Autonomous Sys 680 232 2149 231 DFN-IP service G-WiN 3320 228 1946 175 Deutsche Telekom AG 1257 212 462 209 SWIPnet Swedish IP Network 5400 198 82 93 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 158 288 114 LANLINK autonomous system 8708 141 22 134 Romania Data Systems S.A. 12302 129 9 48 MobiFon S.A. 2856 126 786 116 BTnet UK Regional network 8297 122 53 67 Teleglobe Autonomous System i 3269 117 694 71 TELECOM ITALIA 3303 117 546 116 Swisscom Ltd 5536 108 13 25 Internet Egypt Network 5511 104 193 91 France Telecom 517 101 226 97 KPNQwest Germany GmbH 2874 96 84 36 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2065 8486 1446 UUNET Technologies, Inc. 7018 1264 7503 939 AT&T 3908 864 1660 479 Supernet, Inc. 1239 810 3368 651 Sprint 1 798 8120 595 BBN Planet 852 664 1148 425 Telus Advanced Communications 4323 634 436 256 Time Warner Communications, I 705 594 188 293 UUNET Technologies, Inc. 209 583 2015 327 Qwest 7046 572 837 365 UUNET Technologies, Inc. 7132 569 604 140 Southwestern Bell Internet Se 3549 503 856 304 Global Crossing 690 460 68 296 Merit Network 7066 445 202 249 Virginia Polytechnic Institut 7843 439 323 51 Adelphia Corp. 2914 410 2142 405 Verio, Inc. 2149 346 207 289 Performance Systems, Inc. 3741 344 731 236 The Internet Solution 6197 343 341 131 BellSouth Network Solutions, 3561 317 2151 284 Cable & Wireless USA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 474 457 China Education and Research 7132 569 429 Southwestern Bell Internet Se 7843 439 388 Adelphia Corp. 3908 864 385 Supernet, Inc. 4323 634 378 Time Warner Communications, I 1221 1293 345 Telstra Pty Ltd 7018 1264 325 AT&T 705 594 301 UUNET Technologies, Inc. 4151 308 292 USDA 11371 293 287 Rhythms NetConnections 209 583 256 Qwest 7029 264 249 Alltel Information Services, 852 664 239 Telus Advanced Communications 6347 315 236 SAVVIS Communications Corpora 4355 253 217 EarthLink, Inc. 6197 343 212 BellSouth Network Solutions, 9443 275 212 Primus Telecommunications 7046 572 207 UUNET Technologies, Inc. 6517 248 207 Yipes Communications, Inc. 1 798 203 BBN Planet 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 112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises 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 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. 192.76.133.0/24 5669 VIA NET.WORKS 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 /8:20 /9:7 /10:8 /11:14 /12:35 /13:88 /14:234 /15:404 /16:7187 /17:1412 /18:2579 /19:7455 /20:6958 /21:4983 /22:7672 /23:9227 /24:61969 /25:220 /26:191 /27:90 /28:92 /29:51 /30:96 /31:0 /32:33 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 649 1037 UUNET Technologies, Inc. 701 596 2065 UUNET Technologies, Inc. 3908 451 864 Supernet, Inc. 690 431 460 Merit Network 705 379 594 UUNET Technologies, Inc. 7066 350 445 Virginia Polytechnic Institut 7018 322 1264 AT&T 209 268 583 Qwest 7843 268 439 Adelphia Corp. 7029 249 264 Alltel Information Services, 11371 245 293 Rhythms NetConnections 6197 243 343 BellSouth Network Solutions, 1 238 798 BBN Planet 3301 234 391 TeliaNet Sweden 6198 228 304 BellSouth Network Solutions, 3549 224 503 Global Crossing 6517 223 248 Yipes Communications, Inc. 1239 206 810 Sprint 3215 206 271 France Telecom / &Equant 7046 197 572 UUNET Technologies, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 9:1 12:490 13:10 15:2 17:7 20:2 24:767 25:1 32:68 38:8 40:6 44:1 57:14 61:201 62:190 63:1911 64:1183 65:1182 66:866 67:249 68:6 80:218 81:17 128:64 129:139 130:22 131:47 132:12 133:3 134:128 135:9 136:304 137:90 138:142 139:49 140:186 141:139 142:82 143:38 144:140 145:13 146:223 147:136 148:144 149:90 150:40 151:57 152:322 153:33 154:2 155:99 156:76 157:123 158:69 159:125 160:36 161:57 162:153 163:107 164:244 165:122 166:224 167:167 168:111 169:52 170:293 171:2 192:5445 193:2278 194:2093 195:803 196:429 198:3691 199:3209 200:2436 202:3116 203:4582 204:3241 205:2164 206:2566 207:2636 208:2581 209:2777 210:622 211:208 212:867 213:599 214:9 215:18 216:3011 217:458 218:15 End of report