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 24 Aug, 2001 Analysis Summary ---------------- BGP routing table entries examined: 106866 Origin ASes present in the Internet Routing Table: 11494 Origin ASes announcing only one prefix: 4222 Transit ASes present in the Internet Routing Table: 1480 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: 40 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 15 Number of addresses announced to Internet: 1228285731 Equivalent to 73 /8s, 54 /16s and 39 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 63.8 Percentage of available address space allocated: 51.9 Total number of prefixes smaller than registry allocations: 72884 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 15986 Prefixes being announced from the APNIC address blocks: 14353 APNIC Region origin ASes present in the Internet Routing Table: 1356 APNIC Region origin ASes announcing only one prefix: 463 APNIC Region transit ASes present in the Internet Routing Table: 223 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 76799457 Equivalent to 4 /8s, 147 /16s and 221 /24s Percentage of available APNIC address space announced: 75.5 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: 73503 Prefixes being announced from the ARIN address blocks: 53311 ARIN Region origin ASes present in the Internet Routing Table: 6914 ARIN Region origin ASes announcing only one prefix: 2058 ARIN Region transit ASes present in the Internet Routing Table: 692 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 13 Number of ARIN addresses announced to Internet: 206246788 Equivalent to 12 /8s, 75 /16s and 19 /24s Percentage of available ARIN address space announced: 76.8 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, 21504 - 22527 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: 17373 Prefixes being announced from the RIPE address blocks: 13566 RIPE Region origin ASes present in the Internet Routing Table: 3229 RIPE Region origin ASes announcing only one prefix: 1701 RIPE Region transit ASes present in the Internet Routing Table: 565 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 106133996 Equivalent to 6 /8s, 83 /16s and 121 /24s Percentage of available RIPE address space announced: 70.3 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 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 Description 1221 1591 1315 Telstra Pty Ltd 2764 433 378 connect.com.au pty ltd 703 419 367 UUNET Technologies, Inc. 2907 368 1816 SINET Japan 4755 298 163 Videsh Sanchar Nigam Ltd. Aut 4134 240 1743 Data Communications Bureau 7474 232 289 Optus Communications Pty Ltd 7539 205 175 TANet2, sponsored by NSC, TAI 4740 203 25 OzEmail ISP 4766 188 1361 Korea Internet Exchange for " 7545 150 25 TPG Internet Pty Ltd 9443 145 39 Primus Telecommunications 4786 131 17 NetConnect Communications Pty 4763 120 69 Telstra New Zealand 17561 116 167 Internet service provision to 4713 114 869 NTT Communications Corporatio 9583 113 61 Satyam Infoway Ltd., 7586 110 17 Paradox Digital Pty Ltd 4812 109 278 China Telecom (Group) 7657 107 22 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 707 1732 UUNET Technologies, Inc. 3301 431 917 TeliaNet Sweden 15870 377 12 Global Center Frankfurt 1257 278 521 SWIPnet Swedish IP Network 680 232 2261 DFN-IP service G-WiN 1270 220 845 UUNET Germany 3215 218 511 France Telecom / &Equant 5515 193 672 Sonera Finland Autonomous Sys 786 184 1890 The JANET IP Service 3320 182 1938 Deutsche Telekom AG 719 180 291 LANLINK autonomous system 8708 152 19 Romania Data Systems S.A. 15878 143 12 Global Center Paris 5400 136 66 Concert European Core Network 3303 132 576 Swisscom Ltd 2856 125 774 BTnet UK Regional network 5549 124 64 Nextra Deutschland GmbH + Co. 517 118 269 KPNQwest Germany GmbH 1267 103 1989 Infostrada S.p.A. 3269 103 784 TELECOM ITALIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2294 8141 UUNET Technologies, Inc. 7018 1017 7120 AT&T 3908 895 629 Supernet, Inc. 1 877 8662 BBN Planet 2551 854 660 ICG NetAhead, Inc 7046 772 1041 UUNET Technologies, Inc. 1239 715 3257 Sprint 3967 604 487 Exodus Communication 209 511 2151 Qwest 2914 508 2312 Verio, Inc. 690 499 93 Merit Network 4293 477 115 Cable & Wireless USA 3561 422 2399 Cable & Wireless USA 2548 387 1000 Business Internet, Inc. 2149 386 280 Performance Systems, Inc. 3549 369 820 Global Crossing 18994 356 10 Global Crossing 577 348 617 Bell Advanced Communications 6347 338 360 SAVVIS Communications Corpora 4323 337 316 Time Warner Communications, I Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2294 8141 UUNET Technologies, Inc. 1221 1591 1315 Telstra Pty Ltd 7018 1017 7120 AT&T 3908 895 629 Supernet, Inc. 1 877 8662 BBN Planet 2551 854 660 ICG NetAhead, Inc 7046 772 1041 UUNET Technologies, Inc. 1239 715 3257 Sprint 702 707 1732 UUNET Technologies, Inc. 3967 604 487 Exodus Communication 209 511 2151 Qwest 2914 508 2312 Verio, Inc. 690 499 93 Merit Network 4293 477 115 Cable & Wireless USA 2764 433 378 connect.com.au pty ltd 3301 431 917 TeliaNet Sweden 3561 422 2399 Cable & Wireless USA 703 419 367 UUNET Technologies, Inc. 2548 387 1000 Business Internet, Inc. 2149 386 280 Performance Systems, Inc. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65534 PRIVATE 62.23.176.0/24 6675 Colt Telecommunicati 65534 PRIVATE 62.23.177.0/24 6675 Colt Telecommunicati 6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc. 6971 UNALLOCATED 64.42.108.0/22 2914 Verio, Inc. 6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc. 6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw 578 UNALLOCATED 64.230.242.16/28 577 Bell Advanced Commun 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw 1877 UNALLOCATED 192.108.199.0/24 1755 Ebone Transit Core 65460 PRIVATE 192.231.11.0/24 7018 AT&T 6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc. 6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc. 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.202.0/23 2914 Verio, Inc. 6971 UNALLOCATED 216.174.204.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc. 6971 UNALLOCATED 216.174.240.0/22 2914 Verio, Inc. 6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw 6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 82.105.0.0/16 3269 TELECOM ITALIA 82.105.128.0/17 3269 TELECOM ITALIA 128.65.0.0/16 3463 ACES Research Inc 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 138.94.0.0/16 1 BBN Planet 144.7.0.0/16 701 UUNET Technologies, Inc. 153.34.0.0/15 701 UUNET Technologies, Inc. 153.36.0.0/14 701 UUNET Technologies, Inc. 154.150.0.0/16 6494 IDCI 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 172.32.1.0/25 1221 Telstra Pty Ltd 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 /8:18 /9:5 /10:6 /11:12 /12:32 /13:84 /14:224 /15:379 /16:6933 /17:1220 /18:2298 /19:6857 /20:5650 /21:4644 /22:6890 /23:8742 /24:60929 /25:341 /26:371 /27:341 /28:325 /29:259 /30:227 /31:0 /32:79 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1447 2294 UUNET Technologies, Inc. 1221 1441 1591 Telstra Pty Ltd 2551 748 854 ICG NetAhead, Inc 3908 748 895 Supernet, Inc. 7046 597 772 UUNET Technologies, Inc. 7018 524 1017 AT&T 690 495 499 Merit Network 4293 460 477 Cable & Wireless USA 702 457 707 UUNET Technologies, Inc. 3967 424 604 Exodus Communication 1 411 877 BBN Planet 1239 396 715 Sprint 2764 386 433 connect.com.au pty ltd 15870 373 377 Global Center Frankfurt 209 362 511 Qwest 18994 354 356 Global Crossing 703 349 419 UUNET Technologies, Inc. 11371 309 322 Rhythms NetConnections 4323 288 337 Time Warner Communications, I 4151 285 327 USDA Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 9:1 12:403 13:10 15:1 17:6 20:1 24:698 26:1 32:32 38:8 43:3 44:2 53:2 55:1 57:15 61:69 62:137 63:1908 64:1346 65:611 66:424 80:36 128:44 129:115 130:19 131:44 132:12 133:1 134:138 135:9 136:22 137:93 138:199 139:46 140:139 141:160 142:64 143:40 144:144 145:11 146:143 147:129 148:214 149:89 150:37 151:212 152:404 153:31 154:23 155:77 156:84 157:122 158:72 159:65 160:45 161:58 162:67 163:158 164:107 165:92 166:185 167:142 168:119 169:36 170:282 171:2 192:5498 193:1932 194:2039 195:817 196:412 198:3717 199:3401 200:2432 201:1 202:2726 203:4595 204:3513 205:2367 206:3029 207:2762 208:3076 209:3217 210:528 211:124 212:799 213:465 214:9 215:14 216:3064 217:377 218:2 End of report