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 11 May, 2001 Analysis Summary ---------------- BGP routing table entries examined: 105792 Origin ASes present in the Internet Routing Table: 10804 Origin ASes announcing only one prefix: 3935 Transit ASes present in the Internet Routing Table: 1445 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: 16 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 1 Number of addresses announced to Internet: 1263460384 Equivalent to 75 /8s, 78 /16s and 224 /24s Percentage of available address space announced: 34.1 Percentage of allocated address space announced: 65.7 Percentage of available address space allocated: 51.9 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15441 Prefixes being announced from the APNIC address blocks: 14012 APNIC Region origin ASes present in the Internet Routing Table: 1249 APNIC Region origin ASes announcing only one prefix: 445 APNIC Region transit ASes present in the Internet Routing Table: 209 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 70917987 Equivalent to 4 /8s, 58 /16s and 31 /24s Percentage of available APNIC address space announced: 69.7 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239, 17408 - 18431 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 73634 Prefixes being announced from the ARIN address blocks: 50662 ARIN Region origin ASes present in the Internet Routing Table: 6580 ARIN Region origin ASes announcing only one prefix: 1970 ARIN Region transit ASes present in the Internet Routing Table: 691 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 183888365 Equivalent to 10 /8s, 245 /16s and 233 /24s Percentage of available ARIN address space announced: 84.3 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 ARIN Address Blocks 63/8, 64/7, 66/8, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 16701 Prefixes being announced from the RIPE address blocks: 13038 RIPE Region origin ASes present in the Internet Routing Table: 2972 RIPE Region origin ASes announcing only one prefix: 1516 RIPE Region transit ASes present in the Internet Routing Table: 544 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 114898378 Equivalent to 6 /8s, 217 /16s and 53 /24s Percentage of available RIPE address space announced: 76.1 RIPE AS Blocks 1877 - 1901, 2042, 2047, 2107 - 2136, 2585 - 2614 2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631 6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383 20480 - 21503 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 /19 equiv Description 1221 1766 707 Telstra 2764 430 147 connect.com.au pty ltd 703 381 205 UUNET Technologies, Inc. 2907 363 883 SINET Japan 4755 328 112 VSNL India 4538 243 1049 China Education and Research 7539 209 90 Delegated to TWNIC for subseq 7657 206 14 The Internet Group Limited 7474 193 86 Optus Communications 4134 192 632 Data Communications Bureau 7545 154 10 TPG Internet Pty Ltd 17561 152 69 Internet service provision to 1237 148 50 System Engineering Research I 4766 147 598 KORnet Powered BY Korea Telec 4740 140 10 Ozemail 4786 126 7 NetConnect Communications Pty 9443 125 23 INTERNETPRIMUS-AS-A 7586 123 9 Paradox Digital Pty. Ltd 9394 122 19 CHINA RAILWAY TELECOMMUNICATI 4736 120 17 Magna Data RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 702 543 803 UUNET Technologies, Inc. 15870 446 3 Global Center Frankfurt 3301 390 401 TeliaNet Sweden 1257 278 263 Swipnet AB 1270 266 440 UUNET Germany 3215 213 224 RAIN 680 212 938 Deutschef Forschurgsnetz 5515 193 336 Sonera Finland 719 187 146 LANLINK 786 185 952 JANET IP Service 3320 162 710 Deutsche Telekom AG 517 131 137 Xlink 5400 129 33 Concert Internet Plus Europea 8708 127 7 Romania Data System 3303 122 296 Swisscom 2856 120 396 BTnet UK Regional network 1290 102 204 PSINet UK Ltd. 1267 100 978 IUnet S.p.A 1901 92 77 EUnet Austria 1849 91 79 UUNET UK (formerly PIPEX) ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 701 2381 3908 UUNET Technologies, Inc. 705 1143 54 UUNET Technologies, Inc. 7018 1019 3283 AT&T 1 955 4464 BBN Planet 7046 802 565 UUNET Technologies, Inc. 3491 694 181 CAIS Internet 1239 635 1606 Sprint ICM-Inria 2914 598 1185 Verio, Inc. 3561 544 1215 Cable & Wireless USA 3549 507 524 Global Crossing 4293 501 52 Cable & Wireless USA 18994 493 5 Global Crossing 690 463 54 Merit Network 209 459 726 Qwest 2548 410 506 Digital Express Group, Inc. 174 405 2695 PSINet Inc. 3908 384 233 Supernet, Inc. 3602 358 73 Sprint Canada 3967 340 228 Exodus Communication 4323 340 136 Time Warner Communications, I Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2381 3908 UUNET Technologies, Inc. 1221 1766 707 Telstra 705 1143 54 UUNET Technologies, Inc. 7018 1019 3283 AT&T 1 955 4464 BBN Planet 7046 802 565 UUNET Technologies, Inc. 3491 694 181 CAIS Internet 1239 635 1606 Sprint ICM-Inria 2914 598 1185 Verio, Inc. 3561 544 1215 Cable & Wireless USA 702 543 803 UUNET Technologies, Inc. 3549 507 524 Global Crossing 4293 501 52 Cable & Wireless USA 18994 493 5 Global Crossing 690 463 54 Merit Network 209 459 726 Qwest 15870 446 3 Global Center Frankfurt 2764 430 147 connect.com.au pty ltd 2548 410 506 Digital Express Group, Inc. 174 405 2695 PSINet Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 60002 RESERVED 64.76.148.0/24 19583 CHILE S.A. 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 1877 UNALLOCATED 192.108.196.0/24 1800 SPRINT 1877 UNALLOCATED 192.108.209.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.210.0/24 1880 Stupi, house man's 1877 UNALLOCATED 192.108.214.0/24 1800 SPRINT 5757 UNALLOCATED 192.239.13.0/24 701 UUNET Technologies, 60002 RESERVED 200.9.98.0/24 6429 RdC Internet 60002 RESERVED 200.9.99.0/24 6429 RdC Internet 17441 UNALLOCATED 203.131.192.0/24 6347 SAVVIS Communication 65502 PRIVATE 203.166.83.0/24 10084 Western Australian I 65500 PRIVATE 203.166.86.0/24 10084 Western Australian I 5555 UNALLOCATED 205.110.64.0/24 721 DLA Systems Automati 5555 UNALLOCATED 205.110.68.0/22 721 DLA Systems Automati 5555 UNALLOCATED 205.110.72.0/21 721 DLA Systems Automati 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Advertised IANA Reserved Addresses ---------------------------------- Network Origin AS Description 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 /8:22 /9:5 /10:6 /11:9 /12:30 /13:74 /14:205 /15:341 /16:6943 /17:1151 /18:2133 /19:6648 /20:5186 /21:4524 /22:6813 /23:8728 /24:60541 /25:313 /26:512 /27:432 /28:450 /29:377 /30:286 /31:1 /32:62 Number of /24s announced per /8 block (Global) ---------------------------------------------- 9:3 12:364 13:10 15:1 17:2 24:689 26:1 32:12 38:593 44:3 47:1 53:2 55:1 57:11 61:30 62:122 63:1946 64:1613 65:527 66:315 128:35 129:111 130:23 131:36 132:9 133:1 134:169 135:11 136:16 137:121 138:247 139:49 140:141 141:166 142:61 143:41 144:136 145:9 146:136 147:135 148:96 149:123 150:27 151:300 152:700 153:36 154:17 155:78 156:43 157:107 158:172 159:76 160:27 161:56 162:62 163:134 164:96 165:126 166:178 167:138 168:79 169:34 170:264 171:2 192:5446 193:1957 194:2074 195:783 196:398 198:3650 199:3392 200:2020 201:1 202:2458 203:4810 204:3378 205:2253 206:2837 207:2904 208:2981 209:3138 210:503 211:155 212:873 213:403 214:9 215:12 216:3015 217:221 End of report