Weekly Routing Table Report
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 Apr, 2001 Analysis Summary ---------------- BGP routing table entries examined: 103456 Origin ASes present in the Internet Routing Table: 10626 Origin ASes announcing only one prefix: 3836 Transit ASes present in the Internet Routing Table: 1422 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 34 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 2 Number of addresses announced to Internet: 1239197280 Equivalent to 73 /8s, 220 /16s and 166 /24s Percentage of available address space announced: 33.4 Percentage of allocated address space announced: 65.6 Percentage of available address space allocated: 51.0 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15690 Prefixes being announced from the APNIC address blocks: 14205 APNIC Region origin ASes present in the Internet Routing Table: 1232 APNIC Region origin ASes announcing only one prefix: 436 APNIC Region transit ASes present in the Internet Routing Table: 197 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 71391058 Equivalent to 4 /8s, 65 /16s and 87 /24s Percentage of available APNIC address space announced: 70.2 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: 71577 Prefixes being announced from the ARIN address blocks: 49051 ARIN Region origin ASes present in the Internet Routing Table: 6462 ARIN Region origin ASes announcing only one prefix: 1911 ARIN Region transit ASes present in the Internet Routing Table: 683 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 14 Number of ARIN addresses announced to Internet: 180570501 Equivalent to 10 /8s, 195 /16s and 73 /24s Percentage of available ARIN address space announced: 82.8 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 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: 16155 Prefixes being announced from the RIPE address blocks: 12841 RIPE Region origin ASes present in the Internet Routing Table: 2939 RIPE Region origin ASes announcing only one prefix: 1489 RIPE Region transit ASes present in the Internet Routing Table: 540 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 96663513 Equivalent to 5 /8s, 194 /16s and 247 /24s Percentage of available RIPE address space announced: 82.3 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, 193/8, 194/7, 212/7 and 217/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /19 equiv Description 1221 2001 684 Telstra 2764 425 147 connect.com.au pty ltd 703 390 205 UUNET Technologies, Inc. 2907 363 875 SINET Japan 4755 301 110 VSNL India 4538 235 1038 China Education and Research 7539 228 102 Delegated to TWNIC for subseq 4134 188 623 Data Communications Bureau 4766 187 770 KORnet Powered BY Korea Telec 7474 178 85 Optus Communications 9269 161 22 Hong Kong CTI 1237 156 70 System Engineering Research I 4740 152 10 Ozemail 7657 152 12 The Internet Group Limited 17561 151 61 Internet service provision to 7545 147 10 TPG Internet Pty Ltd 4786 129 7 NetConnect Communications Pty 7586 124 9 Paradox Digital Pty. Ltd 7617 124 46 One.Net Pty Ltd 9797 122 10 Asia Online Australia RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 702 480 670 UUNET Technologies, Inc. 3301 389 337 TeliaNet Sweden 1270 280 448 UUNET Germany 1257 277 247 Swipnet AB 680 207 914 Deutschef Forschurgsnetz 3215 207 228 RAIN 5515 190 336 Sonera Finland 719 189 146 LANLINK 786 185 959 JANET IP Service 3320 160 710 Deutsche Telekom AG 5400 129 41 Concert Internet Plus Europea 517 127 134 Xlink 3303 123 298 Swisscom 2856 122 388 BTnet UK Regional network 1290 117 206 PSINet UK Ltd. 8708 113 5 Romania Data System 3352 108 241 Ibernet, Internet A 1849 107 223 UUNET UK (formerly PIPEX) 1267 97 978 IUnet S.p.A 1901 97 77 EUnet Austria ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /19 equiv Description 701 2426 3626 UUNET Technologies, Inc. 705 1612 69 UUNET Technologies, Inc. 7018 962 3190 AT&T 1 960 4495 BBN Planet 7046 801 552 UUNET Technologies, Inc. 1239 641 1603 Sprint ICM-Inria 2914 608 1210 Verio, Inc. 3561 561 1264 Cable & Wireless USA 174 533 2751 PSINet Inc. 3549 505 514 Global Crossing 4293 480 52 Cable & Wireless USA 209 449 707 Qwest 690 424 43 Merit Network 2548 400 514 Digital Express Group, Inc. 3908 376 262 Supernet, Inc. 8151 362 218 UniNet S.A. de C.V. 3967 336 226 Exodus Communication 4323 336 136 Time Warner Communications, I 8013 336 54 PSINet Ltd. Canada 11371 332 50 Rhythms NetConnections Global Per AS prefix count summary ---------------------------------- ASN No of nets /19 equiv Description 701 2426 3626 UUNET Technologies, Inc. 1221 2001 684 Telstra 705 1612 69 UUNET Technologies, Inc. 7018 962 3190 AT&T 1 960 4495 BBN Planet 7046 801 552 UUNET Technologies, Inc. 1239 641 1603 Sprint ICM-Inria 2914 608 1210 Verio, Inc. 3561 561 1264 Cable & Wireless USA 174 533 2751 PSINet Inc. 3549 505 514 Global Crossing 702 480 670 UUNET Technologies, Inc. 4293 480 52 Cable & Wireless USA 209 449 707 Qwest 2764 425 147 connect.com.au pty ltd 690 424 43 Merit Network 2548 400 514 Digital Express Group, Inc. 703 390 205 UUNET Technologies, Inc. 3301 389 337 TeliaNet Sweden 3908 376 262 Supernet, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 2027 UNALLOCATED 150.185.0.0/16 10530 Interpacket Group, I 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 2027 UNALLOCATED 150.186.0.0/16 10530 Interpacket Group, I 2027 UNALLOCATED 150.187.0.0/16 10530 Interpacket Group, I 2027 UNALLOCATED 150.188.0.0/16 10530 Interpacket Group, I 2027 UNALLOCATED 150.189.0.0/16 10530 Interpacket Group, I 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, 64561 PRIVATE 202.139.40.192/27 7474 Optus Communications 64537 PRIVATE 202.139.47.96/29 7474 Optus Communications 64537 PRIVATE 202.139.116.0/25 7474 Optus Communications 64532 PRIVATE 202.139.116.128/27 7474 Optus Communications 64532 PRIVATE 202.139.116.192/27 7474 Optus Communications 64532 PRIVATE 202.139.116.224/29 7474 Optus Communications 64532 PRIVATE 202.139.116.240/29 7474 Optus Communications 64532 PRIVATE 202.139.116.248/29 7474 Optus Communications 64534 PRIVATE 202.139.121.0/28 7474 Optus Communications 64537 PRIVATE 202.139.168.192/27 7474 Optus Communications 64543 PRIVATE 202.139.182.0/28 7474 Optus Communications 65535 PRIVATE 203.24.169.0/24 17486 Swiftel Communicatio 65500 PRIVATE 203.166.86.0/24 10084 Western Australian I 64553 PRIVATE 203.202.2.72/29 7474 Optus Communications 64555 PRIVATE 203.202.9.88/29 7474 Optus Communications 64534 PRIVATE 203.202.9.128/25 7474 Optus Communications 64548 PRIVATE 203.202.10.0/27 7474 Optus Communications 64560 PRIVATE 203.202.14.80/28 7474 Optus Communications 64553 PRIVATE 203.202.15.16/28 7474 Optus Communications 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 223.255.46.0/24 6853 GLOBAL-ONE-PORTUGAL 223.255.70.0/24 6853 GLOBAL-ONE-PORTUGAL 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 /10:4 /11:10 /12:29 /13:67 /14:206 /15:326 /16:6939 /17:1125 /18:2106 /19:6583 /20:5060 /21:4421 /22:6744 /23:8626 /24:59774 /25:275 /26:405 /27:216 /28:196 /29:134 /30:125 /31:1 /32:58 Number of /24s announced per /8 block (Global) ---------------------------------------------- 9:3 12:354 13:10 15:1 17:1 24:709 26:1 32:12 38:7 44:3 47:1 53:2 55:1 57:11 61:28 62:131 63:1916 64:1461 65:954 66:274 128:30 129:112 130:20 131:26 132:9 133:1 134:168 135:8 136:16 137:117 138:247 139:52 140:149 141:176 142:61 143:41 144:131 145:9 146:132 147:134 148:154 149:134 150:27 151:175 152:801 153:33 154:15 155:77 156:39 157:109 158:61 159:83 160:28 161:56 162:61 163:136 164:129 165:127 166:177 167:134 168:82 169:34 170:219 171:2 192:5410 193:1949 194:2046 195:770 196:406 198:3656 199:3384 200:1909 202:2471 203:4989 204:3376 205:2246 206:2719 207:2844 208:2905 209:3202 210:481 211:190 212:847 213:408 214:9 215:11 216:2936 217:196 223:2 End of report
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Routing Analysis