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 25 May, 2001 Analysis Summary ---------------- BGP routing table entries examined: 107404 Origin ASes present in the Internet Routing Table: 10929 Origin ASes announcing only one prefix: 3984 Transit ASes present in the Internet Routing Table: 1455 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: 12 Non-routable prefixes present in the Routing Table: 1 Prefixes being announced from the IANA Reserved Address blocks: 1 Number of addresses announced to Internet: 1233069767 Equivalent to 73 /8s, 127 /16s and 38 /24s Percentage of available address space announced: 33.3 Percentage of allocated address space announced: 64.1 Percentage of available address space allocated: 51.9 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 16033 Prefixes being announced from the APNIC address blocks: 14563 APNIC Region origin ASes present in the Internet Routing Table: 1254 APNIC Region origin ASes announcing only one prefix: 440 APNIC Region transit ASes present in the Internet Routing Table: 207 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 72564802 Equivalent to 4 /8s, 83 /16s and 64 /24s Percentage of available APNIC address space announced: 71.3 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: 74761 Prefixes being announced from the ARIN address blocks: 51334 ARIN Region origin ASes present in the Internet Routing Table: 6654 ARIN Region origin ASes announcing only one prefix: 1974 ARIN Region transit ASes present in the Internet Routing Table: 695 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 12 Number of ARIN addresses announced to Internet: 185144122 Equivalent to 11 /8s, 9 /16s and 19 /24s Percentage of available ARIN address space announced: 84.9 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 - 22527 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: 16598 Prefixes being announced from the RIPE address blocks: 12969 RIPE Region origin ASes present in the Internet Routing Table: 3018 RIPE Region origin ASes announcing only one prefix: 1564 RIPE Region transit ASes present in the Internet Routing Table: 551 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 98700450 Equivalent to 5 /8s, 226 /16s and 12 /24s Percentage of available RIPE address space announced: 65.4 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 1739 665 Telstra 2764 899 175 connect.com.au pty ltd 2907 365 884 SINET Japan 703 347 204 UUNET Technologies, Inc. 4755 340 110 VSNL India 4538 247 1049 China Education and Research 7539 206 91 TANet2, sponsored by NSC, TAI 4134 198 638 Data Communications Bureau 7474 192 86 Optus Communications 4740 185 12 Ozemail 4766 176 635 KORnet Powered BY Korea Telec 7657 162 13 The Internet Group Limited 7545 153 11 TPG Internet Pty Ltd 1237 152 70 System Engineering Research I 17561 151 68 Internet service provision to 9443 126 24 INTERNETPRIMUS-AS-A 4786 125 7 NetConnect Communications Pty 9394 125 18 CHINA RAILWAY TELECOMMUNICATI 7617 119 46 One.Net Pty Ltd 7586 116 5 Paradox Digital Pty. Ltd RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 702 625 852 UUNET Technologies, Inc. 15870 447 4 Global Center Frankfurt 3301 392 401 TeliaNet Sweden 1257 278 251 Swipnet AB 1270 262 440 UUNET Germany 680 227 1011 Deutschef Forschurgsnetz 3215 217 235 RAIN 719 186 146 LANLINK 786 186 952 JANET IP Service 5515 175 319 Sonera Finland 3320 163 709 Deutsche Telekom AG 5400 132 34 Concert Internet Plus Europea 517 128 136 Xlink 8708 126 7 Romania Data System 2856 117 388 BTnet UK Regional network 3303 116 279 Swisscom 1267 100 978 IUnet S.p.A 1290 98 203 PSINet UK Ltd. 1901 92 77 EUnet Austria 8342 88 44 Rostelecom Internet Center's ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 701 2398 3758 UUNET Technologies, Inc. 7018 1853 3372 AT&T 705 1244 57 UUNET Technologies, Inc. 1 923 4458 BBN Planet 7046 796 564 UUNET Technologies, Inc. 3491 675 196 CAIS Internet 1239 656 1612 Sprint ICM-Inria 2914 587 1174 Verio, Inc. 3561 542 1216 Cable & Wireless USA 4293 497 51 Cable & Wireless USA 18994 474 5 Global Crossing 690 463 39 Merit Network 209 462 914 Qwest 2548 406 498 Digital Express Group, Inc. 3908 390 265 Supernet, Inc. 174 349 2597 PSINet Inc. 3549 345 524 Global Crossing 4323 340 140 Time Warner Communications, I 11371 337 50 Rhythms NetConnections 5106 336 67 Ameritech Advanced Data Servi Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2398 3758 UUNET Technologies, Inc. 7018 1853 3372 AT&T 1221 1739 665 Telstra 705 1244 57 UUNET Technologies, Inc. 1 923 4458 BBN Planet 2764 899 175 connect.com.au pty ltd 7046 796 564 UUNET Technologies, Inc. 3491 675 196 CAIS Internet 1239 656 1612 Sprint ICM-Inria 702 625 852 UUNET Technologies, Inc. 2914 587 1174 Verio, Inc. 3561 542 1216 Cable & Wireless USA 4293 497 51 Cable & Wireless USA 18994 474 5 Global Crossing 690 463 39 Merit Network 209 462 914 Qwest 15870 447 4 Global Center Frankfurt 2548 406 498 Digital Express Group, Inc. 3301 392 401 TeliaNet Sweden 3908 390 265 Supernet, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 60002 RESERVED 64.76.148.0/24 19583 IMPSAT 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, 9242 UNALLOCATED 202.3.6.0/23 4515 Star Internet Servic 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 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 172.16.0.1/32 703 UUNET Technologies, Inc. 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 /8:20 /9:5 /10:6 /11:9 /12:31 /13:75 /14:206 /15:342 /16:6933 /17:1163 /18:2163 /19:6670 /20:5262 /21:4550 /22:6863 /23:8791 /24:61903 /25:263 /26:456 /27:459 /28:473 /29:389 /30:318 /31:1 /32:53 Number of /24s announced per /8 block (Global) ---------------------------------------------- 9:3 12:726 13:10 15:1 17:2 24:699 26:1 32:125 38:573 44:3 47:1 53:2 55:1 57:13 61:34 62:137 63:1975 64:1692 65:708 66:330 128:37 129:110 130:23 131:39 132:9 133:1 134:169 135:12 136:16 137:122 138:243 139:46 140:135 141:157 142:69 143:41 144:140 145:9 146:140 147:135 148:96 149:120 150:35 151:298 152:585 153:32 154:20 155:82 156:48 157:103 158:178 159:78 160:27 161:53 162:68 163:138 164:90 165:123 166:185 167:139 168:90 169:35 170:258 171:4 192:5433 193:1866 194:2041 195:743 196:401 198:3683 199:3401 200:2122 201:1 202:2457 203:4975 204:3365 205:2254 206:2836 207:2993 208:3033 209:3216 210:756 211:177 212:866 213:407 214:9 215:11 216:3038 217:245 End of report