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 04:00 30 Nov, 2001 Analysis Summary ---------------- BGP routing table entries examined: 107754 Total ASes present in the Internet Routing Table: 12188 Origin-only ASes present in the Internet Routing Table: 10581 Origin ASes announcing only one prefix: 4559 Transit ASes present in the Internet Routing Table: 1607 Transit-only ASes present in the Internet Routing Table: 57 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: 10 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: 1261439733 Equivalent to 75 /8s, 48 /16s and 10 /24s Percentage of available address space announced: 34.0 Percentage of allocated address space announced: 65.0 Percentage of available address space allocated: 52.4 Total number of prefixes smaller than registry allocations: 72710 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 17003 Prefixes being announced from the APNIC address blocks: 15490 APNIC Region origin ASes present in the Internet Routing Table: 1413 APNIC Region origin ASes announcing only one prefix: 462 APNIC Region transit ASes present in the Internet Routing Table: 245 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 89518998 Equivalent to 5 /8s, 85 /16s and 243 /24s Percentage of available APNIC address space announced: 75.6 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7 and 218/7 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 72912 Prefixes being announced from the ARIN address blocks: 52282 ARIN Region origin ASes present in the Internet Routing Table: 7240 ARIN Region origin ASes announcing only one prefix: 2227 ARIN Region transit ASes present in the Internet Routing Table: 742 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 221982938 Equivalent to 13 /8s, 59 /16s and 48 /24s Percentage of available ARIN address space announced: 82.7 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 - 23551 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: 17832 Prefixes being announced from the RIPE address blocks: 14513 RIPE Region origin ASes present in the Internet Routing Table: 3480 RIPE Region origin ASes announcing only one prefix: 1870 RIPE Region transit ASes present in the Internet Routing Table: 610 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 15 Number of RIPE addresses announced to Internet: 111005108 Equivalent to 6 /8s, 157 /16s and 205 /24s Percentage of available RIPE address space announced: 73.5 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 1532 1328 Telstra Pty Ltd 2764 408 358 connect.com.au pty ltd 703 380 335 UUNET Technologies, Inc. 2907 372 1863 SINET Japan 4755 305 159 Videsh Sanchar Nigam Ltd. Aut 7474 304 287 Optus Communications Pty Ltd 4134 257 1948 Data Communications Bureau 4766 185 1431 Korea Internet Exchange for " 4740 177 40 OzEmail ISP 9443 174 62 Primus Telecommunications 2521 167 172 PSINet Japan 1659 164 1124 Taiwan Academic Network (TANe 17557 163 13 Pakistan Telecom 9583 155 47 Satyam Infoway Ltd., 4812 137 305 China Telecom (Group) - Shang 7539 137 150 TANet2, sponsored by NSC, TAI 4786 131 15 NetConnect Communications Pty 9768 127 362 Korea Telecom 17676 125 1952 XTAGE CORPORATION 7657 123 23 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 1159 2778 UUNET Technologies, Inc. 3301 430 934 TeliaNet Sweden 1257 268 500 SWIPnet Swedish IP Network 3215 237 543 France Telecom / &Equant 680 231 2148 DFN-IP service G-WiN 5515 201 704 Sonera Finland Autonomous Sys 3320 190 1959 Deutsche Telekom AG 786 183 1874 The JANET IP Service 719 166 292 LANLINK autonomous system 8708 162 21 Romania Data Systems S.A. 5400 142 62 Concert European Core Network 2856 134 777 BTnet UK Regional network 3303 132 561 Swisscom Ltd 5549 121 82 Nextra Deutschland GmbH + Co. 517 111 248 KPNQwest Germany GmbH 12302 107 7 MobiFon S.A. 3269 105 799 TELECOM ITALIA 1290 100 398 PSINet UK Ltd. 8297 98 31 Teleglobe Autonomous System i 5511 94 192 France Telecom ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2209 9159 UUNET Technologies, Inc. 7018 1090 7346 AT&T 3967 1028 483 Exodus Communication 1 841 8516 BBN Planet 1239 729 3388 Sprint 7046 729 889 UUNET Technologies, Inc. 8010 719 106 PublicNet Communications, Inc 3908 696 1549 Supernet, Inc. 209 606 2217 Qwest 4323 585 477 Time Warner Communications, I 852 543 697 Telus Advanced Communications 690 502 71 Merit Network 2914 480 2268 Verio, Inc. 705 461 253 UUNET Technologies, Inc. 2149 437 251 Performance Systems, Inc. 3549 406 889 Global Crossing 3561 387 2288 Cable & Wireless USA 7132 386 534 Southwestern Bell Internet Se 4151 368 1287 USDA 3741 350 766 The Internet Solution Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2209 9159 UUNET Technologies, Inc. 1221 1532 1328 Telstra Pty Ltd 702 1159 2778 UUNET Technologies, Inc. 7018 1090 7346 AT&T 3967 1028 483 Exodus Communication 1 841 8516 BBN Planet 1239 729 3388 Sprint 7046 729 889 UUNET Technologies, Inc. 8010 719 106 PublicNet Communications, Inc 3908 696 1549 Supernet, Inc. 209 606 2217 Qwest 4323 585 477 Time Warner Communications, I 852 543 697 Telus Advanced Communications 690 502 71 Merit Network 2914 480 2268 Verio, Inc. 705 461 253 UUNET Technologies, Inc. 2149 437 251 Performance Systems, Inc. 3301 430 934 TeliaNet Sweden 2764 408 358 connect.com.au pty ltd 3549 406 889 Global Crossing List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp. 65025 PRIVATE 168.95.70.0/24 3462 Data Communication B 65025 PRIVATE 168.95.71.0/24 3462 Data Communication B 65025 PRIVATE 168.95.86.32/27 3462 Data Communication B 65026 PRIVATE 168.95.86.128/27 3462 Data Communication B 65026 PRIVATE 168.95.160.0/24 3462 Data Communication B 65026 PRIVATE 168.95.161.0/24 3462 Data Communication B 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 65515 PRIVATE 212.110.142.0/24 5593 CRIS-AS 17940 UNALLOCATED 218.45.0.0/20 4713 NTT Communications C Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 400 Headquarters Standard Systems 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 164.235.0.0/16 6025 US DOD NIC Unregistered 191.9.200.0/24 1290 PSINet UK 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 /10:7 /11:12 /12:36 /13:90 /14:221 /15:385 /16:7091 /17:1356 /18:2451 /19:7110 /20:6124 /21:4696 /22:7090 /23:8861 /24:60637 /25:328 /26:319 /27:268 /28:236 /29:151 /30:189 /31:0 /32:73 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1406 2209 UUNET Technologies, Inc. 1221 1386 1532 Telstra Pty Ltd 3967 845 1028 Exodus Communication 702 761 1159 UUNET Technologies, Inc. 8010 703 719 PublicNet Communications, Inc 7018 564 1090 AT&T 7046 562 729 UUNET Technologies, Inc. 690 499 502 Merit Network 4323 495 585 Time Warner Communications, I 3908 472 696 Supernet, Inc. 209 435 606 Qwest 1 413 841 BBN Planet 1239 406 729 Sprint 705 368 461 UUNET Technologies, Inc. 2764 366 408 connect.com.au pty ltd 852 363 543 Telus Advanced Communications 2149 329 437 Performance Systems, Inc. 4151 322 368 USDA 703 310 380 UUNET Technologies, Inc. 3549 274 406 Global Crossing Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 9:1 12:422 13:10 15:1 17:5 20:1 24:859 25:1 26:1 32:72 38:13 40:1 43:1 44:2 52:1 53:2 57:12 61:124 62:162 63:1916 64:1496 65:964 66:741 67:8 80:108 128:61 129:111 130:23 131:44 132:14 133:2 134:137 135:10 136:114 137:102 138:63 139:30 140:98 141:59 142:65 143:43 144:54 145:13 146:211 147:90 148:128 149:88 150:42 151:38 152:390 153:51 154:6 155:85 156:89 157:114 158:69 159:71 160:45 161:51 162:82 163:130 164:121 165:99 166:205 167:162 168:121 169:46 170:301 171:2 191:1 192:5370 193:2097 194:2091 195:821 196:446 198:3748 199:3377 200:2409 201:1 202:2843 203:4582 204:3313 205:2132 206:2615 207:2658 208:2738 209:2999 210:591 211:146 212:912 213:537 214:9 215:15 216:2948 217:423 218:7 End of report
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Routing Table Analysis