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 24 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 112362 Prefixes after maximum aggregation: 73172 Unique aggregates announced to Internet: 52720 Total ASes present in the Internet Routing Table: 13122 Origin-only ASes present in the Internet Routing Table: 11366 Origin ASes announcing only one prefix: 4997 Transit ASes present in the Internet Routing Table: 1756 Transit-only ASes present in the Internet Routing Table: 53 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: 4 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 40 Number of addresses announced to Internet: 1180795740 Equivalent to 70 /8s, 97 /16s and 131 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45201 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18140 Total APNIC prefixes after maximum aggregation: 10990 Prefixes being announced from the APNIC address blocks: 16614 Unique aggregates announced from the APNIC address blocks: 10372 APNIC Region origin ASes present in the Internet Routing Table: 1514 APNIC Region origin ASes announcing only one prefix: 500 APNIC Region transit ASes present in the Internet Routing Table: 270 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 84976608 Equivalent to 5 /8s, 16 /16s and 163 /24s Percentage of available APNIC address space announced: 62.8 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: 75327 Total ARIN prefixes after maximum aggregation: 47783 Prefixes being announced from the ARIN address blocks: 53594 Unique aggregates announced from the ARIN address blocks: 16753 ARIN Region origin ASes present in the Internet Routing Table: 7746 ARIN Region origin ASes announcing only one prefix: 2454 ARIN Region transit ASes present in the Internet Routing Table: 762 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 192714436 Equivalent to 11 /8s, 124 /16s and 150 /24s Percentage of available ARIN address space announced: 71.8 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: 18894 Total RIPE prefixes after maximum aggregation: 14399 Prefixes being announced from the RIPE address blocks: 15552 Unique aggregates announced from the RIPE address blocks: 9789 RIPE Region origin ASes present in the Internet Routing Table: 3810 RIPE Region origin ASes announcing only one prefix: 2043 RIPE Region transit ASes present in the Internet Routing Table: 708 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 115017648 Equivalent to 6 /8s, 219 /16s and 7 /24s Percentage of available RIPE address space announced: 76.2 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 1270 1223 912 Telstra Pty Ltd 4538 476 1194 17 China Education and Research 2907 426 1845 367 SINET Japan 703 405 338 326 UUNET Technologies, Inc. 2764 398 361 363 connect.com.au pty ltd 7474 308 291 206 Optus Communications Pty Ltd 17557 278 19 108 Pakistan Telecom 4134 276 2076 93 Data Communications Bureau 9443 266 44 63 Primus Telecommunications 4755 249 109 75 Videsh Sanchar Nigam Ltd. Aut 4766 223 1516 155 Korea Internet Exchange for " 9583 180 32 5 Satyam Infoway Ltd., 4814 160 68 16 China Telecom (Group) - Beiji 7539 153 218 147 TANet2, sponsored by NSC, TAI 9768 146 386 76 Korea Telecom 7657 128 22 85 The Internet Group Limited 17676 128 1970 11 XTAGE CORPORATION 4780 117 186 39 Digital United Inc. 4713 115 1009 106 NTT Communications Corporatio 9800 114 186 22 CHINA UNICOM RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1022 2610 847 UUNET Technologies, Inc. 3301 394 908 346 TeliaNet Sweden 3215 264 599 164 France Telecom / &Equant 5515 263 775 175 Sonera Finland Autonomous Sys 3320 235 1948 181 Deutsche Telekom AG 680 231 2149 230 DFN-IP service G-WiN 1257 208 430 205 SWIPnet Swedish IP Network 5400 200 83 95 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 178 290 124 LANLINK autonomous system 8708 148 23 140 Romania Data Systems S.A. 12302 133 9 46 MobiFon S.A. 2856 126 789 116 BTnet UK Regional network 3303 116 546 115 Swisscom Ltd 8297 116 57 65 Teleglobe Autonomous System i 3269 115 694 71 TELECOM ITALIA 5511 105 191 87 France Telecom 517 100 226 96 KPNQwest Germany GmbH 2830 100 252 76 UUNET Dual-Homed customers 2874 97 84 37 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1997 8914 1431 UUNET Technologies, Inc. 7018 1293 7572 939 AT&T 3908 895 1640 485 Supernet, Inc. 1239 828 3442 659 Sprint 1 805 8168 454 BBN Planet 852 741 1176 448 Telus Advanced Communications 7046 680 937 460 UUNET Technologies, Inc. 4323 631 436 257 Time Warner Communications, I 690 587 79 383 Merit Network 209 582 1970 322 Qwest 7132 569 606 137 Southwestern Bell Internet Se 3549 517 854 322 Global Crossing 7843 510 363 61 Adelphia Corp. 7066 475 202 248 Virginia Polytechnic Institut 2914 398 2108 389 Verio, Inc. 15290 392 300 204 AT&T Canada IES 705 374 100 266 UUNET Technologies, Inc. 3741 345 731 236 The Internet Solution 2149 343 191 284 Performance Systems, Inc. 6197 341 260 164 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 476 459 China Education and Research 7843 510 449 Adelphia Corp. 7132 569 432 Southwestern Bell Internet Se 3908 895 410 Supernet, Inc. 4323 631 374 Time Warner Communications, I 1221 1270 358 Telstra Pty Ltd 7018 1293 354 AT&T 1 805 351 BBN Planet 852 741 293 Telus Advanced Communications 11371 292 286 Rhythms NetConnections 4151 288 272 USDA 209 582 260 Qwest 6347 337 258 SAVVIS Communications Corpora 7029 261 246 Alltel Information Services, 4355 277 240 EarthLink, Inc. 7066 475 227 Virginia Polytechnic Institut 7046 680 220 UUNET Technologies, Inc. 18566 219 215 Covad Communications 6198 314 209 BellSouth Network Solutions, 6517 243 207 Yipes Communications, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 55555 RESERVED 136.162.254.0/24 7046 UUNET Technologies, 25780 UNALLOCATED 198.153.131.0/24 1 BBN Planet 25780 UNALLOCATED 198.153.231.0/24 1 BBN Planet 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 192.0.2.0/24 1103 SURFnet BV 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 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.26.98.0/24 1239 Sprint 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. 192.83.14.0/24 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 /9:6 /10:7 /11:13 /12:34 /13:85 /14:231 /15:408 /16:7203 /17:1431 /18:2592 /19:7576 /20:7155 /21:5081 /22:7761 /23:9421 /24:62582 /25:219 /26:186 /27:83 /28:87 /29:47 /30:92 /31:0 /32:42 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 628 1022 UUNET Technologies, Inc. 701 554 1997 UUNET Technologies, Inc. 3908 484 895 Supernet, Inc. 690 459 587 Merit Network 7066 380 475 Virginia Polytechnic Institut 7018 337 1293 AT&T 7046 306 680 UUNET Technologies, Inc. 7843 304 510 Adelphia Corp. 209 268 582 Qwest 1 249 805 BBN Planet 7029 246 261 Alltel Information Services, 6197 245 341 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 3301 237 394 TeliaNet Sweden 6198 231 314 BellSouth Network Solutions, 6517 221 243 Yipes Communications, Inc. 3549 216 517 Global Crossing 18566 215 219 Covad Communications 1239 210 828 Sprint 1580 204 216 HQ, 5th Signal Command Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:513 13:10 15:2 17:6 20:2 24:777 25:1 32:40 38:8 40:6 44:1 57:13 61:226 62:200 63:1956 64:1212 65:1315 66:934 67:79 68:14 80:234 81:25 128:63 129:134 130:23 131:47 132:13 133:3 134:118 135:9 136:254 137:91 138:150 139:57 140:174 141:120 142:78 143:38 144:148 145:11 146:180 147:136 148:171 149:92 150:42 151:67 152:269 153:33 154:14 155:104 156:75 157:127 158:69 159:127 160:18 161:63 162:147 163:100 164:271 165:140 166:229 167:175 168:121 169:58 170:352 171:2 192:5499 193:2333 194:2102 195:804 196:409 198:3702 199:3232 200:2573 202:3154 203:4567 204:3250 205:2158 206:2579 207:2681 208:2652 209:2767 210:599 211:224 212:874 213:618 214:9 215:18 216:3001 217:466 218:20 End of report