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 20:00 +10GMT Fri 26 Jul, 2002 Analysis Summary ---------------- BGP routing table entries examined: 114301 Prefixes after maximum aggregation: 74045 Unique aggregates announced to Internet: 54685 Total ASes present in the Internet Routing Table: 13448 Origin-only ASes present in the Internet Routing Table: 11641 Origin ASes announcing only one prefix: 5154 Transit ASes present in the Internet Routing Table: 1807 Transit-only ASes present in the Internet Routing Table: 48 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 23 Illegal AS announcements present in the Routing Table: 8 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 34 Number of addresses announced to Internet: 1161595844 Equivalent to 69 /8s, 60 /16s and 139 /24s Percentage of available address space announced: 31.3 Percentage of allocated address space announced: 57.9 Percentage of available address space allocated: 54.1 Total number of prefixes smaller than registry allocations: 46284 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18971 Total APNIC prefixes after maximum aggregation: 11212 Prefixes being announced from the APNIC address blocks: 17475 Unique aggregates announced from the APNIC address blocks: 10633 APNIC Region origin ASes present in the Internet Routing Table: 1578 APNIC Region origin ASes announcing only one prefix: 515 APNIC Region transit ASes present in the Internet Routing Table: 277 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 13 Number of APNIC addresses announced to Internet: 89876320 Equivalent to 5 /8s, 91 /16s and 103 /24s Percentage of available APNIC address space announced: 59.1 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 220/7 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 75906 Total ARIN prefixes after maximum aggregation: 48221 Prefixes being announced from the ARIN address blocks: 53985 Unique aggregates announced from the ARIN address blocks: 18013 ARIN Region origin ASes present in the Internet Routing Table: 7906 ARIN Region origin ASes announcing only one prefix: 2528 ARIN Region transit ASes present in the Internet Routing Table: 780 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190252864 Equivalent to 11 /8s, 87 /16s and 7 /24s Percentage of available ARIN address space announced: 70.9 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 25600 - 26623 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: 19417 Total RIPE prefixes after maximum aggregation: 14612 Prefixes being announced from the RIPE address blocks: 16114 Unique aggregates announced from the RIPE address blocks: 10485 RIPE Region origin ASes present in the Internet Routing Table: 3917 RIPE Region origin ASes announcing only one prefix: 2111 RIPE Region transit ASes present in the Internet Routing Table: 736 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 112921632 Equivalent to 6 /8s, 187 /16s and 12 /24s Percentage of available RIPE address space announced: 74.8 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 1249 1191 897 Telstra Pty Ltd 4538 541 1278 26 China Education and Research 703 413 360 326 UUNET 2907 362 1832 340 SINET Japan 2764 359 358 330 connect.com.au pty ltd 7474 317 296 213 Optus Communications Pty Ltd 17557 296 20 103 Pakistan Telecom 4134 293 2142 103 Data Communications Bureau 4755 292 112 76 Videsh Sanchar Nigam Ltd. Aut 9443 253 45 68 Primus Telecommunications 4766 249 1506 156 Korea Internet Exchange for " 4814 215 79 14 China Telecom (Group) 9583 180 32 5 Satyam Infoway Ltd., 17676 169 2626 32 XTAGE CORPORATION 9768 143 384 73 Korea Telecom 7657 129 22 88 The Internet Group Limited 9800 125 191 18 CHINA UNICOM 4780 122 186 39 Digital United Inc. 7539 119 184 118 TANet2, sponsored by NSC, TAI 4621 115 11 63 UNINET-TH RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 898 2441 756 UUNET - Commercial IP service 3301 395 923 345 TeliaNet Sweden 5515 319 783 180 Sonera Solution Autonomous Sy 3215 277 640 175 France Telecom Transpac 3352 275 531 31 Ibernet, Internet Access Netw 3320 266 1964 205 Deutsche Telekom AG 680 235 2150 232 DFN-IP service G-WiN 5400 209 85 97 BT Ignite European Backbone 1257 208 446 203 SWIPnet Swedish IP Network 719 182 306 127 LANLINK autonomous system 786 177 1873 177 The JANET IP Service 3303 141 548 140 Swisscom Ltd 8708 140 23 136 Romania Data Systems S.A. 2856 128 787 118 BTnet UK Regional network 12302 123 18 30 MobiFon S.A. 3269 113 690 68 TELECOM ITALIA 3246 112 317 107 Song Networks 5511 110 192 88 France Telecom 3233 107 10 9 RNC - Romanian Natioanal R&D 2874 102 85 39 Global One Services AB ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1822 9181 1375 UUNET Technologies, Inc. 7018 1316 7402 943 AT&T 3908 951 1653 492 Supernet, Inc. 1239 814 3245 642 Sprint 852 756 1175 452 Telus Advanced Communications 1 691 8067 442 GENUITY 4323 629 439 258 Time Warner Communications, I 7843 596 358 241 Adelphia Corp. 7132 583 659 133 Southwestern Bell Internet Se 209 536 2026 349 Qwest 7046 534 889 333 UUNET Technologies, Inc. 690 521 75 330 Merit Network 7066 485 203 254 Virginia Polytechnic Institut 7029 463 165 56 Alltel Information Services, 3549 428 812 308 Global Crossing 2149 388 176 288 Performance Systems, Inc. 15290 378 297 193 AT&T Canada IES 6197 377 611 37 BellSouth Network Solutions, 2914 367 2083 367 Verio, Inc. 6347 343 370 76 SAVVIS Communications Corpora Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 541 515 China Education and Research 3908 951 459 Supernet, Inc. 7132 583 450 Southwestern Bell Internet Se 7029 463 407 Alltel Information Services, 7018 1316 373 AT&T 4323 629 371 Time Warner Communications, I 7843 596 355 Adelphia Corp. 1221 1249 352 Telstra Pty Ltd 6197 377 340 BellSouth Network Solutions, 852 756 304 Telus Advanced Communications 4151 289 273 USDA 6347 343 267 SAVVIS Communications Corpora 4355 324 255 EarthLink, Inc. 1 691 249 GENUITY 3352 275 244 Ibernet, Internet Access Netw 18566 236 232 Covad Communications 7066 485 231 Virginia Polytechnic Institut 7303 278 219 Telecom Argentina Stet-France 4755 292 216 Videsh Sanchar Nigam Ltd. Aut 1580 216 202 ANOSCEUR List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 55000 RESERVED 81.5.64.0/20 5467 MIPT-NET 65003 PRIVATE 202.92.84.0/24 9837 Powertel Ltd 65003 PRIVATE 202.92.84.0/22 9837 Powertel Ltd 65003 PRIVATE 202.92.85.0/24 9837 Powertel Ltd 65003 PRIVATE 202.92.119.0/24 9837 Powertel Ltd 65003 PRIVATE 203.56.32.0/24 9837 Powertel Ltd 65003 PRIVATE 203.56.33.0/24 9837 Powertel Ltd 5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies, 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 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 GENUITY 158.0.0.0/13 568 DISO-UNRRA 164.233.0.0/16 6020 DISA NETWORK SERVICES 192.5.154.0/24 16588 Spider Web Hosting Solutions 192.44.0.0/19 702 UUNET - Commercial IP service 192.72.0.0/18 4780 Digital United Inc. 192.72.0.0/16 4780 Digital United Inc. 192.83.16.0/20 5515 Sonera Solution Autonomous Sy 192.83.32.0/19 5515 Sonera Solution Autonomous Sy 192.83.96.0/22 5515 Sonera Solution Autonomous Sy 192.83.100.0/24 5515 Sonera Solution Autonomous Sy 192.91.198.0/24 2568 CTS Network Services 192.92.167.0/24 297 NASA Science Network 192.108.46.0/23 680 DFN-IP service G-WiN 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.136.86.0/24 719 LANLINK autonomous system 192.136.87.0/24 719 LANLINK autonomous system 192.136.88.0/24 719 LANLINK autonomous system 192.139.62.0/24 6539 GT Group Telecom Services Cor 192.140.0.0/16 5511 France Telecom 192.153.136.0/21 568 DISO-UNRRA 192.156.0.0/19 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.195.253.0/24 237 Merit Network 192.208.29.0/24 3908 Supernet, Inc. 192.208.30.0/23 3908 Supernet, Inc. 192.243.36.0/23 7168 Northwest Link Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:6 /10:7 /11:12 /12:35 /13:86 /14:235 /15:415 /16:7276 /17:1458 /18:2663 /19:7703 /20:7470 /21:5253 /22:7976 /23:9740 /24:63292 /25:199 /26:158 /27:85 /28:74 /29:48 /30:72 /31:0 /32:21 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 702 542 898 UUNET - Commercial IP service 3908 529 951 Supernet, Inc. 701 502 1822 UUNET Technologies, Inc. 690 463 521 Merit Network 7843 401 596 Adelphia Corp. 7066 388 485 Virginia Polytechnic Institut 7018 370 1316 AT&T 7029 366 463 Alltel Information Services, 6197 262 377 BellSouth Network Solutions, 6198 237 310 BellSouth Network Solutions, 3301 233 395 TeliaNet Sweden 18566 232 236 Covad Communications 209 213 536 Qwest 3215 210 277 France Telecom Transpac 1239 203 814 Sprint 1580 203 216 ANOSCEUR 3352 200 275 Ibernet, Internet Access Netw 7046 199 534 UUNET Technologies, Inc. 3320 198 266 Deutsche Telekom AG 1 189 691 GENUITY Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:515 13:10 15:2 17:6 20:3 24:690 25:1 32:41 38:9 40:6 44:1 57:13 61:321 62:237 63:1894 64:1219 65:1409 66:997 67:91 68:67 80:251 81:40 128:65 129:131 130:22 131:53 132:11 133:2 134:124 135:8 136:244 137:95 138:151 139:72 140:169 141:121 142:79 143:45 144:143 145:17 146:189 147:139 148:242 149:80 150:39 151:66 152:269 153:34 154:14 155:115 156:70 157:124 158:70 159:134 160:19 161:74 162:214 163:91 164:263 165:132 166:219 167:178 168:295 169:59 170:242 171:3 192:5463 193:2376 194:2101 195:925 196:415 198:3624 199:3179 200:2610 202:3313 203:4783 204:3250 205:2209 206:2679 207:2525 208:2612 209:2721 210:595 211:238 212:902 213:662 214:9 215:20 216:2833 217:469 218:27 End of report