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 31 May, 2002 Analysis Summary ---------------- BGP routing table entries examined: 113208 Prefixes after maximum aggregation: 73232 Unique aggregates announced to Internet: 52880 Total ASes present in the Internet Routing Table: 13148 Origin-only ASes present in the Internet Routing Table: 11405 Origin ASes announcing only one prefix: 5013 Transit ASes present in the Internet Routing Table: 1743 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: 18 Illegal AS announcements present in the Routing Table: 1 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 38 Number of addresses announced to Internet: 1178191436 Equivalent to 70 /8s, 57 /16s and 198 /24s Percentage of available address space announced: 31.8 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 53.7 Total number of prefixes smaller than registry allocations: 45887 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18102 Total APNIC prefixes after maximum aggregation: 10934 Prefixes being announced from the APNIC address blocks: 16583 Unique aggregates announced from the APNIC address blocks: 9814 APNIC Region origin ASes present in the Internet Routing Table: 1515 APNIC Region origin ASes announcing only one prefix: 502 APNIC Region transit ASes present in the Internet Routing Table: 269 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 13 Number of APNIC addresses announced to Internet: 89895008 Equivalent to 5 /8s, 91 /16s and 176 /24s Percentage of available APNIC address space announced: 66.5 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: 75766 Total ARIN prefixes after maximum aggregation: 47790 Prefixes being announced from the ARIN address blocks: 53927 Unique aggregates announced from the ARIN address blocks: 16653 ARIN Region origin ASes present in the Internet Routing Table: 7767 ARIN Region origin ASes announcing only one prefix: 2468 ARIN Region transit ASes present in the Internet Routing Table: 760 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 192059076 Equivalent to 11 /8s, 114 /16s and 150 /24s Percentage of available ARIN address space announced: 71.5 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 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: 19340 Total RIPE prefixes after maximum aggregation: 14508 Prefixes being announced from the RIPE address blocks: 15977 Unique aggregates announced from the RIPE address blocks: 10567 RIPE Region origin ASes present in the Internet Routing Table: 3811 RIPE Region origin ASes announcing only one prefix: 2043 RIPE Region transit ASes present in the Internet Routing Table: 697 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 110117664 Equivalent to 6 /8s, 144 /16s and 67 /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 1268 1223 911 Telstra Pty Ltd 4538 482 1258 18 China Education and Research 2907 427 1861 368 SINET Japan 703 406 339 326 UUNET Technologies, Inc. 2764 393 360 358 connect.com.au pty ltd 7474 308 292 204 Optus Communications Pty Ltd 17557 289 19 112 Pakistan Telecom 4134 277 2100 94 Data Communications Bureau 9443 266 44 63 Primus Telecommunications 4755 248 109 79 Videsh Sanchar Nigam Ltd. Aut 4766 227 1517 158 Korea Internet Exchange for " 4814 178 70 12 China Telecom (Group) - Beiji 9583 177 32 5 Satyam Infoway Ltd., 7539 153 218 147 TANet2, sponsored by NSC, TAI 9768 147 387 76 Korea Telecom 17676 144 2226 22 XTAGE CORPORATION 7657 136 22 86 The Internet Group Limited 4780 116 186 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 1116 2603 844 UUNET Technologies, Inc. 3301 398 908 349 TeliaNet Sweden 3352 278 521 27 Ibernet, Internet Access Netw 3215 266 599 165 France Telecom / &Equant 5515 263 783 175 Sonera Finland Autonomous Sys 3320 236 1947 181 Deutsche Telekom AG 680 231 2149 230 DFN-IP service G-WiN 1257 205 430 202 SWIPnet Swedish IP Network 5400 200 83 95 Concert European Core Network 719 187 290 126 LANLINK autonomous system 786 182 1874 182 The JANET IP Service 8708 148 23 140 Romania Data Systems S.A. 12302 133 10 46 MobiFon S.A. 2856 125 789 115 BTnet UK Regional network 3303 117 546 116 Swisscom Ltd 8297 117 57 65 Teleglobe Autonomous System i 3269 113 692 70 TELECOM ITALIA 3246 107 300 101 Song Networks / Clinet 3233 106 7 52 RNC - Romanian Natioanal R&D 5511 105 191 87 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2005 8882 1439 UUNET Technologies, Inc. 7018 1288 7543 933 AT&T 3908 903 1641 493 Supernet, Inc. 1239 825 3438 654 Sprint 1 815 8168 453 BBN Planet 852 795 1175 445 Telus Advanced Communications 7046 645 934 435 UUNET Technologies, Inc. 4323 634 436 257 Time Warner Communications, I 705 586 122 290 UUNET Technologies, Inc. 209 585 1969 326 Qwest 690 582 79 379 Merit Network 7132 570 606 138 Southwestern Bell Internet Se 3549 513 854 319 Global Crossing 7843 500 357 70 Adelphia Corp. 7066 475 202 248 Virginia Polytechnic Institut 2914 396 2108 389 Verio, Inc. 15290 391 299 204 AT&T Canada IES 2149 346 191 287 Performance Systems, Inc. 3741 345 731 236 The Internet Solution 6197 340 245 164 BellSouth Network Solutions, Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 482 464 China Education and Research 7132 570 432 Southwestern Bell Internet Se 7843 500 430 Adelphia Corp. 3908 903 410 Supernet, Inc. 4323 634 377 Time Warner Communications, I 1 815 362 BBN Planet 1221 1268 357 Telstra Pty Ltd 7018 1288 355 AT&T 852 795 350 Telus Advanced Communications 705 586 296 UUNET Technologies, Inc. 11371 292 286 Rhythms NetConnections 702 1116 272 UUNET Technologies, Inc. 4151 288 272 USDA 209 585 259 Qwest 6347 337 258 SAVVIS Communications Corpora 3352 278 251 Ibernet, Internet Access Netw 7029 262 247 Alltel Information Services, 4355 280 244 EarthLink, Inc. 7066 475 227 Virginia Polytechnic Institut 18566 222 218 Covad Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 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 192.44.0.0/19 702 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 /11:12 /12:34 /13:84 /14:231 /15:414 /16:7222 /17:1438 /18:2593 /19:7575 /20:7181 /21:5098 /22:7790 /23:9505 /24:63292 /25:207 /26:180 /27:81 /28:83 /29:41 /30:89 /31:1 /32:24 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 709 1116 UUNET Technologies, Inc. 701 556 2005 UUNET Technologies, Inc. 3908 490 903 Supernet, Inc. 690 454 582 Merit Network 705 396 586 UUNET Technologies, Inc. 7066 380 475 Virginia Polytechnic Institut 7018 336 1288 AT&T 7843 300 500 Adelphia Corp. 7046 282 645 UUNET Technologies, Inc. 209 264 585 Qwest 1 257 815 BBN Planet 7029 247 262 Alltel Information Services, 6197 245 340 BellSouth Network Solutions, 11371 245 292 Rhythms NetConnections 3301 238 398 TeliaNet Sweden 6198 231 317 BellSouth Network Solutions, 6517 222 244 Yipes Communications, Inc. 18566 218 222 Covad Communications 3549 214 513 Global Crossing 1239 211 825 Sprint Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:511 13:10 15:2 17:6 20:2 24:779 25:1 32:40 38:8 40:6 44:1 57:13 61:233 62:235 63:1929 64:1226 65:1501 66:959 67:80 68:18 80:234 81:24 128:60 129:138 130:23 131:47 132:11 133:3 134:119 135:8 136:246 137:91 138:150 139:57 140:174 141:119 142:77 143:38 144:152 145:11 146:174 147:138 148:200 149:92 150:39 151:97 152:267 153:54 154:14 155:96 156:75 157:132 158:68 159:128 160:18 161:62 162:147 163:100 164:273 165:140 166:230 167:174 168:119 169:58 170:348 171:2 192:5507 193:2423 194:2137 195:962 196:439 198:3711 199:3236 200:2568 202:3130 203:4568 204:3255 205:2169 206:2600 207:2722 208:2665 209:2744 210:595 211:223 212:903 213:621 214:9 215:19 216:3011 217:457 218:27 End of report