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 23 Nov, 2001 Analysis Summary ---------------- BGP routing table entries examined: 107582 Total ASes present in the Internet Routing Table: 12122 Origin-only ASes present in the Internet Routing Table: 10534 Origin ASes announcing only one prefix: 4519 Transit ASes present in the Internet Routing Table: 1588 Transit-only ASes present in the Internet Routing Table: 49 Average AS path length visible in the Internet Routing Table: 5.3 Max AS path length visible: 19 Illegal AS announcements present in the Routing Table: 9 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: 1256253460 Equivalent to 74 /8s, 224 /16s and 232 /24s Percentage of available address space announced: 33.9 Percentage of allocated address space announced: 64.7 Percentage of available address space allocated: 52.4 Total number of prefixes smaller than registry allocations: 72790 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 16998 Prefixes being announced from the APNIC address blocks: 15495 APNIC Region origin ASes present in the Internet Routing Table: 1409 APNIC Region origin ASes announcing only one prefix: 460 APNIC Region transit ASes present in the Internet Routing Table: 238 Average APNIC Region AS path length visible: 5.2 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 89014362 Equivalent to 5 /8s, 78 /16s and 64 /24s Percentage of available APNIC address space announced: 75.1 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: 72736 Prefixes being announced from the ARIN address blocks: 52030 ARIN Region origin ASes present in the Internet Routing Table: 7198 ARIN Region origin ASes announcing only one prefix: 2202 ARIN Region transit ASes present in the Internet Routing Table: 726 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 219486431 Equivalent to 13 /8s, 21 /16s and 24 /24s Percentage of available ARIN address space announced: 81.8 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 - 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: 17842 Prefixes being announced from the RIPE address blocks: 14473 RIPE Region origin ASes present in the Internet Routing Table: 3467 RIPE Region origin ASes announcing only one prefix: 1857 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: 110308732 Equivalent to 6 /8s, 147 /16s and 45 /24s Percentage of available RIPE address space announced: 73.1 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 1535 1305 Telstra Pty Ltd 2764 406 357 connect.com.au pty ltd 703 385 344 UUNET Technologies, Inc. 2907 371 1848 SINET Japan 4755 351 169 Videsh Sanchar Nigam Ltd. Aut 7474 301 275 Optus Communications Pty Ltd 4134 255 1924 Data Communications Bureau 4766 185 1431 Korea Internet Exchange for " 4740 179 41 OzEmail ISP 9443 172 54 Primus Telecommunications 1659 165 1157 Taiwan Academic Network (TANe 2521 165 172 PSINet Japan 17557 153 12 Pakistan Telecom 4812 143 308 China Telecom (Group) - Shang 7539 142 120 TANet2, sponsored by NSC, TAI 9583 141 47 Satyam Infoway Ltd., 4786 137 16 NetConnect Communications Pty 9768 127 362 Korea Telecom 17676 125 1952 XTAGE CORPORATION 7657 122 23 The Internet Group Limited RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 702 1134 2641 UUNET Technologies, Inc. 3301 419 948 TeliaNet Sweden 1257 268 500 SWIPnet Swedish IP Network 3215 236 543 France Telecom / &Equant 680 231 2148 DFN-IP service G-WiN 5515 199 704 Sonera Finland Autonomous Sys 3320 194 1959 Deutsche Telekom AG 786 184 1890 The JANET IP Service 8708 170 17 Romania Data Systems S.A. 719 166 292 LANLINK autonomous system 5400 138 62 Concert European Core Network 2856 135 778 BTnet UK Regional network 3303 131 561 Swisscom Ltd 5549 122 82 Nextra Deutschland GmbH + Co. 517 112 248 KPNQwest Germany GmbH 12302 108 7 MobiFon S.A. 1273 107 165 Cable & Wireless ECRC GmbH 3269 107 809 TELECOM ITALIA 1290 100 398 PSINet UK Ltd. 8297 93 31 Teleglobe Autonomous System i ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv Description 701 2238 9179 UUNET Technologies, Inc. 7018 1088 7347 AT&T 3967 1040 482 Exodus Communication 1 832 8548 BBN Planet 7046 732 919 UUNET Technologies, Inc. 1239 722 3387 Sprint 8010 719 106 PublicNet Communications, Inc 4323 613 478 Time Warner Communications, I 209 597 2217 Qwest 3908 578 1378 Supernet, Inc. 852 540 697 Telus Advanced Communications 690 498 71 Merit Network 2914 480 2284 Verio, Inc. 2149 465 269 Performance Systems, Inc. 705 437 251 UUNET Technologies, Inc. 3549 397 889 Global Crossing 3561 388 2288 Cable & Wireless USA 7132 385 532 Southwestern Bell Internet Se 4151 368 1255 USDA 577 350 625 Bell Advanced Communications Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv Description 701 2238 9179 UUNET Technologies, Inc. 1221 1535 1305 Telstra Pty Ltd 702 1134 2641 UUNET Technologies, Inc. 7018 1088 7347 AT&T 3967 1040 482 Exodus Communication 1 832 8548 BBN Planet 7046 732 919 UUNET Technologies, Inc. 1239 722 3387 Sprint 8010 719 106 PublicNet Communications, Inc 4323 613 478 Time Warner Communications, I 209 597 2217 Qwest 3908 578 1378 Supernet, Inc. 852 540 697 Telus Advanced Communications 690 498 71 Merit Network 2914 480 2284 Verio, Inc. 2149 465 269 Performance Systems, Inc. 705 437 251 UUNET Technologies, Inc. 3301 419 948 TeliaNet Sweden 2764 406 357 connect.com.au pty ltd 3549 397 889 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, 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 100.0.0.0/24 10061 Financial Supervisory Service 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 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 /13:87 /14:221 /15:388 /16:7053 /17:1344 /18:2419 /19:7078 /20:6031 /21:4706 /22:7102 /23:8867 /24:60670 /25:331 /26:319 /27:259 /28:233 /29:154 /30:182 /31:0 /32:60 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1429 2238 UUNET Technologies, Inc. 1221 1391 1535 Telstra Pty Ltd 3967 858 1040 Exodus Communication 702 775 1134 UUNET Technologies, Inc. 8010 703 719 PublicNet Communications, Inc 7046 565 732 UUNET Technologies, Inc. 7018 558 1088 AT&T 4323 524 613 Time Warner Communications, I 690 495 498 Merit Network 209 426 597 Qwest 3908 405 578 Supernet, Inc. 1239 401 722 Sprint 1 398 832 BBN Planet 2764 363 406 connect.com.au pty ltd 852 360 540 Telus Advanced Communications 2149 352 465 Performance Systems, Inc. 705 344 437 UUNET Technologies, Inc. 4151 323 368 USDA 703 314 385 UUNET Technologies, Inc. 4755 304 351 Videsh Sanchar Nigam Ltd. Aut Number of /24s announced per /8 block (Global) ---------------------------------------------- 9:1 12:421 13:10 15:1 17:5 20:1 24:833 25:1 26:1 32:72 38:13 40:1 43:1 44:2 47:2 52:1 53:2 57:12 61:121 62:155 63:1888 64:1467 65:923 66:730 67:7 80:96 100:1 128:61 129:111 130:23 131:40 132:12 133:2 134:131 135:10 136:103 137:98 138:61 139:30 140:89 141:58 142:67 143:43 144:57 145:12 146:209 147:90 148:187 149:88 150:42 151:191 152:386 153:86 154:8 155:84 156:90 157:107 158:69 159:71 160:46 161:50 162:82 163:129 164:122 165:99 166:204 167:160 168:118 169:45 170:291 171:2 192:5341 193:2041 194:2078 195:840 196:444 198:3747 199:3383 200:2394 201:1 202:2881 203:4590 204:3314 205:2125 206:2626 207:2665 208:2753 209:2985 210:583 211:145 212:941 213:534 214:9 215:15 216:2965 217:432 218:6 End of report
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Routing Table Analysis