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April 2002

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Weekly Routing Table Report
by Routing Table Analysis 05 Apr '02

05 Apr '02

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(a)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(a)cisco.com>. Routing Table Report 20:00 +10GMT Fri 05 Apr, 2002 Analysis Summary ---------------- BGP routing table entries examined: 111183 Prefixes after maximum aggregation: 72523 Unique aggregates announced to Internet: 53862 Total ASes present in the Internet Routing Table: 12853 Origin-only ASes present in the Internet Routing Table: 11134 Origin ASes announcing only one prefix: 4883 Transit ASes present in the Internet Routing Table: 1719 Transit-only ASes present in the Internet Routing Table: 55 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 17 Illegal AS announcements present in the Routing Table: 32 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 14 Number of addresses announced to Internet: 1163534440 Equivalent to 69 /8s, 90 /16s and 32 /24s Percentage of available address space announced: 31.4 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 52.8 Total number of prefixes smaller than registry allocations: 74810 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18347 Total APNIC prefixes after maximum aggregation: 10814 Prefixes being announced from the APNIC address blocks: 16820 Unique aggregates announced from the APNIC address blocks: 10202 APNIC Region origin ASes present in the Internet Routing Table: 1475 APNIC Region origin ASes announcing only one prefix: 481 APNIC Region transit ASes present in the Internet Routing Table: 262 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 82542400 Equivalent to 4 /8s, 235 /16s and 127 /24s Percentage of available APNIC address space announced: 61.0 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 61/8, 202/7, 210/7, 218/7 and 220/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 74236 Total ARIN prefixes after maximum aggregation: 47491 Prefixes being announced from the ARIN address blocks: 52525 Unique aggregates announced from the ARIN address blocks: 17615 ARIN Region origin ASes present in the Internet Routing Table: 7609 ARIN Region origin ASes announcing only one prefix: 2399 ARIN Region transit ASes present in the Internet Routing Table: 764 Average ARIN Region AS path length visible: 5.2 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 183919940 Equivalent to 10 /8s, 246 /16s and 101 /24s Percentage of available ARIN address space announced: 68.5 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, 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: 18595 Total RIPE prefixes after maximum aggregation: 14218 Prefixes being announced from the RIPE address blocks: 15313 Unique aggregates announced from the RIPE address blocks: 10167 RIPE Region origin ASes present in the Internet Routing Table: 3713 RIPE Region origin ASes announcing only one prefix: 2003 RIPE Region transit ASes present in the Internet Routing Table: 679 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 108544800 Equivalent to 6 /8s, 120 /16s and 67 /24s Percentage of available RIPE address space announced: 71.9 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, 24576 - 25599 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 MaxAgg Description 1221 1289 1211 946 Telstra Pty Ltd 4538 470 1194 17 China Education and Research 2907 437 1927 371 SINET Japan 703 420 338 326 UUNET Technologies, Inc. 2764 387 361 361 connect.com.au pty ltd 9394 338 113 4 CHINA RAILWAY Internet(CRNET) 7474 312 290 211 Optus Communications Pty Ltd 4755 280 109 78 Videsh Sanchar Nigam Ltd. Aut 9443 276 44 64 Primus Telecommunications 4134 273 1986 93 Data Communications Bureau 17557 255 17 100 Pakistan Telecom 4766 220 1520 158 Korea Internet Exchange for " 7539 170 256 163 TANet2, sponsored by NSC, TAI 4804 160 84 67 Microplex PTY LTD 9583 149 32 5 Satyam Infoway Ltd., 9768 139 385 79 Korea Telecom 7657 122 22 85 The Internet Group Limited 4713 119 898 104 NTT Communications Corporatio 17676 119 1904 12 XTAGE CORPORATION 4780 114 186 39 Digital United Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 1028 2577 843 UUNET Technologies, Inc. 3301 388 923 343 TeliaNet Sweden 3215 269 582 174 France Telecom / &Equant 5515 266 760 171 Sonera Finland Autonomous Sys 680 232 2149 231 DFN-IP service G-WiN 3320 227 1964 175 Deutsche Telekom AG 1257 215 463 212 SWIPnet Swedish IP Network 5400 196 83 93 Concert European Core Network 786 182 1874 182 The JANET IP Service 719 163 289 118 LANLINK autonomous system 8708 158 23 148 Romania Data Systems S.A. 2856 128 786 117 BTnet UK Regional network 12302 127 8 47 MobiFon S.A. 3303 123 564 122 Swisscom Ltd 8297 121 53 66 Teleglobe Autonomous System i 3269 117 694 71 TELECOM ITALIA 5536 107 11 27 Internet Egypt Network 5511 103 193 91 France Telecom 517 101 226 97 KPNQwest Germany GmbH 9051 101 6 25 INCONET Autonomous System ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 2077 8538 1456 UUNET Technologies, Inc. 7018 1230 7512 920 AT&T 3908 849 1676 479 Supernet, Inc. 1239 822 3390 645 Sprint 1 804 8138 605 BBN Planet 4323 628 436 253 Time Warner Communications, I 852 625 1111 412 Telus Advanced Communications 7046 601 837 370 UUNET Technologies, Inc. 209 562 1997 321 Qwest 705 541 152 279 UUNET Technologies, Inc. 7132 525 555 162 Southwestern Bell Internet Se 3549 519 861 269 Global Crossing 690 455 68 300 Merit Network 7843 430 314 50 Adelphia Corp. 2914 413 2162 409 Verio, Inc. 7066 362 203 250 Virginia Polytechnic Institut 2149 355 207 296 Performance Systems, Inc. 3741 342 731 235 The Internet Solution 6197 332 217 173 BellSouth Network Solutions, 3561 317 2152 285 Cable & Wireless USA Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 470 453 China Education and Research 7843 430 380 Adelphia Corp. 4323 628 375 Time Warner Communications, I 3908 849 370 Supernet, Inc. 7132 525 363 Southwestern Bell Internet Se 1221 1289 343 Telstra Pty Ltd 9394 338 334 CHINA RAILWAY Internet(CRNET) 7018 1230 310 AT&T 4151 307 291 USDA 11371 294 288 Rhythms NetConnections 6198 311 280 BellSouth Network Solutions, 4565 311 277 Epoch Networks 705 541 262 UUNET Technologies, Inc. 3549 519 250 Global Crossing 209 562 241 Qwest 6347 317 238 SAVVIS Communications Corpora 7046 601 231 UUNET Technologies, Inc. 7029 243 228 Alltel Information Services, 4355 250 214 EarthLink, Inc. 852 625 213 Telus Advanced Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 23522 UNALLOCATED 63.144.122.0/24 209 Qwest 23522 UNALLOCATED 63.145.151.0/24 209 Qwest 23522 UNALLOCATED 63.147.197.0/24 209 Qwest 23522 UNALLOCATED 63.149.31.0/24 209 Qwest 23522 UNALLOCATED 63.149.35.0/24 209 Qwest 23522 UNALLOCATED 63.151.165.0/24 209 Qwest 23522 UNALLOCATED 63.151.166.0/24 209 Qwest 23522 UNALLOCATED 63.151.206.0/24 209 Qwest 23279 UNALLOCATED 63.238.4.0/24 209 Qwest 23522 UNALLOCATED 63.239.198.0/24 209 Qwest 23522 UNALLOCATED 65.116.88.0/24 209 Qwest 23522 UNALLOCATED 65.116.89.0/24 209 Qwest 23522 UNALLOCATED 65.116.90.0/24 209 Qwest 23522 UNALLOCATED 65.116.91.0/24 209 Qwest 23522 UNALLOCATED 65.116.92.0/24 209 Qwest 23522 UNALLOCATED 65.116.93.0/24 209 Qwest 23522 UNALLOCATED 65.116.94.0/24 209 Qwest 23522 UNALLOCATED 65.116.95.0/24 209 Qwest 23522 UNALLOCATED 65.117.175.0/24 209 Qwest 23522 UNALLOCATED 66.252.0.0/20 209 Qwest 23522 UNALLOCATED 66.252.15.0/24 209 Qwest 65005 PRIVATE 152.70.0.0/16 90 Sun Microsystems, In 112 UNALLOCATED 192.175.48.0/24 3557 Vixie Enterprises 65535 PRIVATE 198.93.230.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.93.231.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.94.168.0/24 3550 Ateneo de Manila Uni 65535 PRIVATE 198.94.169.0/24 3550 Ateneo de Manila Uni 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 23522 UNALLOCATED 216.111.191.0/24 209 Qwest 23522 UNALLOCATED 216.111.239.0/24 209 Qwest 23279 UNALLOCATED 216.207.52.0/24 209 Qwest 23279 UNALLOCATED 216.207.53.0/24 209 Qwest Advertised Unregistered Addresses --------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 96.0.0.0/20 3549 Global Crossing 132.0.0.0/10 568 DISO-UNRRA 134.137.0.0/16 7170 AT&T Government Markets 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. 153.36.0.0/14 701 UUNET Technologies, Inc. 153.147.0.0/16 3561 Cable & Wireless USA 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 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 /10:8 /11:14 /12:35 /13:88 /14:233 /15:401 /16:7207 /17:1404 /18:2564 /19:7425 /20:6889 /21:4964 /22:7624 /23:9188 /24:62083 /25:227 /26:288 /27:119 /28:116 /29:122 /30:125 /31:0 /32:36 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 701 1333 2077 UUNET Technologies, Inc. 1221 1148 1289 Telstra Pty Ltd 702 656 1028 UUNET Technologies, Inc. 7018 645 1230 AT&T 3908 580 849 Supernet, Inc. 4323 496 628 Time Warner Communications, I 705 474 541 UUNET Technologies, Inc. 1239 474 822 Sprint 690 447 455 Merit Network 7046 414 601 UUNET Technologies, Inc. 1 397 804 BBN Planet 852 381 625 Telus Advanced Communications 3549 377 519 Global Crossing 209 370 562 Qwest 2764 342 387 connect.com.au pty ltd 703 337 420 UUNET Technologies, Inc. 7066 333 362 Virginia Polytechnic Institut 9394 324 338 CHINA RAILWAY Internet(CRNET) 11371 288 294 Rhythms NetConnections 4565 286 311 Epoch Networks Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 9:1 12:492 13:10 15:2 17:6 20:2 24:774 25:1 32:68 38:8 40:6 44:1 57:14 61:305 62:180 63:1910 64:1195 65:1135 66:805 67:205 68:5 80:228 81:10 128:64 129:131 130:22 131:57 132:12 133:3 134:129 135:10 136:288 137:103 138:137 139:49 140:187 141:114 142:82 143:38 144:137 145:13 146:220 147:137 148:160 149:92 150:40 151:45 152:308 153:33 154:1 155:105 156:76 157:122 158:72 159:124 160:42 161:56 162:141 163:104 164:158 165:126 166:219 167:187 168:100 169:52 170:289 171:2 192:5456 193:2266 194:2095 195:807 196:430 198:3737 199:3222 200:2387 202:3153 203:4574 204:3241 205:2179 206:2620 207:2671 208:2568 209:2821 210:583 211:204 212:883 213:617 214:9 215:18 216:3114 217:462 218:15 End of report

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