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 04 May, 2001 Analysis Summary ---------------- BGP routing table entries examined: 103810 Origin ASes present in the Internet Routing Table: 10703 Origin ASes announcing only one prefix: 3895 Transit ASes present in the Internet Routing Table: 1444 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 15 Illegal AS announcements present in the Routing Table: 15 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: 1246077232 Equivalent to 74 /8s, 69 /16s and 161 /24s Percentage of available address space announced: 33.6 Percentage of allocated address space announced: 64.8 Percentage of available address space allocated: 51.9 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15211 Prefixes being announced from the APNIC address blocks: 13775 APNIC Region origin ASes present in the Internet Routing Table: 1213 APNIC Region origin ASes announcing only one prefix: 437 APNIC Region transit ASes present in the Internet Routing Table: 206 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 70563339 Equivalent to 4 /8s, 52 /16s and 182 /24s Percentage of available APNIC address space announced: 69.4 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: 71945 Prefixes being announced from the ARIN address blocks: 49729 ARIN Region origin ASes present in the Internet Routing Table: 6532 ARIN Region origin ASes announcing only one prefix: 1948 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: 14 Number of ARIN addresses announced to Internet: 186557918 Equivalent to 11 /8s, 30 /16s and 165 /24s Percentage of available ARIN address space announced: 85.5 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 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: 16639 Prefixes being announced from the RIPE address blocks: 12919 RIPE Region origin ASes present in the Internet Routing Table: 2956 RIPE Region origin ASes announcing only one prefix: 1508 RIPE Region transit ASes present in the Internet Routing Table: 546 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 97641033 Equivalent to 5 /8s, 209 /16s and 226 /24s Percentage of available RIPE address space announced: 64.7 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 1789 700 Telstra 2764 432 147 connect.com.au pty ltd 703 385 204 UUNET Technologies, Inc. 2907 361 875 SINET Japan 4755 315 110 VSNL India 4538 243 1056 China Education and Research 7539 213 97 Delegated to TWNIC for subseq 4134 194 632 Data Communications Bureau 7474 190 85 Optus Communications 7657 180 13 The Internet Group Limited 1237 154 70 System Engineering Research I 7545 153 10 TPG Internet Pty Ltd 17561 151 61 Internet service provision to 4740 150 10 Ozemail 4766 146 597 KORnet Powered BY Korea Telec 4786 128 7 NetConnect Communications Pty 9394 122 19 CHINA RAILWAY TELECOMMUNICATI 9443 122 22 INTERNETPRIMUS-AS-A 7586 121 9 Paradox Digital Pty. Ltd 7617 121 46 One.Net Pty Ltd RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 702 540 801 UUNET Technologies, Inc. 15870 458 3 Global Center Frankfurt 3301 390 401 TeliaNet Sweden 1257 278 263 Swipnet AB 1270 265 440 UUNET Germany 680 213 946 Deutschef Forschurgsnetz 3215 209 221 RAIN 5515 190 336 Sonera Finland 719 189 146 LANLINK 786 185 952 JANET IP Service 3320 161 710 Deutsche Telekom AG 517 129 136 Xlink 5400 128 33 Concert Internet Plus Europea 3303 122 296 Swisscom 2856 121 396 BTnet UK Regional network 8708 121 7 Romania Data System 1290 102 204 PSINet UK Ltd. 1267 100 978 IUnet S.p.A 1901 92 77 EUnet Austria 1849 89 79 UUNET UK (formerly PIPEX) ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 701 2342 4448 UUNET Technologies, Inc. 705 1138 54 UUNET Technologies, Inc. 7018 980 3233 AT&T 1 958 4464 BBN Planet 7046 798 564 UUNET Technologies, Inc. 1239 626 1605 Sprint ICM-Inria 2914 598 1187 Verio, Inc. 3561 545 1224 Cable & Wireless USA 18994 524 6 Crossing 3549 501 515 Global Crossing 4293 475 51 Cable & Wireless USA 209 447 718 Qwest 174 428 2696 PSINet Inc. 2548 407 506 Digital Express Group, Inc. 690 391 49 Merit Network 8151 366 228 UniNet S.A. de C.V. 3908 354 268 Supernet, Inc. 3602 346 72 Sprint Canada 3967 339 228 Exodus Communication 4323 337 136 Time Warner Communications, I Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2342 4448 UUNET Technologies, Inc. 1221 1789 700 Telstra 705 1138 54 UUNET Technologies, Inc. 7018 980 3233 AT&T 1 958 4464 BBN Planet 7046 798 564 UUNET Technologies, Inc. 1239 626 1605 Sprint ICM-Inria 2914 598 1187 Verio, Inc. 3561 545 1224 Cable & Wireless USA 702 540 801 UUNET Technologies, Inc. 18994 524 6 Crossing 3549 501 515 Global Crossing 4293 475 51 Cable & Wireless USA 15870 458 3 Global Center Frankfurt 209 447 718 Qwest 2764 432 147 connect.com.au pty ltd 174 428 2696 PSINet Inc. 2548 407 506 Digital Express Group, Inc. 690 391 49 Merit Network 3301 390 401 TeliaNet Sweden 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 65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio 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 /9:4 /10:5 /11:10 /12:29 /13:71 /14:203 /15:333 /16:6925 /17:1145 /18:2113 /19:6618 /20:5147 /21:4456 /22:6752 /23:8628 /24:59263 /25:274 /26:441 /27:361 /28:378 /29:323 /30:246 /31:1 /32:62 Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:1 9:3 12:351 13:10 15:1 17:2 24:681 26:1 32:12 38:7 44:3 47:1 53:2 55:1 57:10 61:29 62:123 63:1914 64:1527 65:478 66:315 128:36 129:117 130:21 131:25 132:9 133:1 134:166 135:11 136:17 137:120 138:246 139:49 140:140 141:164 142:60 143:41 144:131 145:9 146:132 147:134 148:170 149:125 150:28 151:300 152:726 153:34 154:17 155:78 156:41 157:107 158:171 159:76 160:27 161:58 162:61 163:134 164:81 165:129 166:178 167:134 168:81 169:34 170:261 171:2 192:5384 193:1965 194:2075 195:779 196:401 198:3618 199:3377 200:1991 201:1 202:2418 203:4788 204:3342 205:2242 206:2766 207:2842 208:2950 209:3125 210:492 211:151 212:827 213:386 214:9 215:11 216:2966 217:203 End of report