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 09 Aug, 2002 Analysis Summary ---------------- BGP routing table entries examined: 115042 Prefixes after maximum aggregation: 73968 Unique aggregates announced to Internet: 54874 Total ASes present in the Internet Routing Table: 13521 Origin-only ASes present in the Internet Routing Table: 11699 Origin ASes announcing only one prefix: 5192 Transit ASes present in the Internet Routing Table: 1822 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: 23 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from the IANA Reserved Address blocks: 33 Number of addresses announced to Internet: 1196649525 Equivalent to 71 /8s, 83 /16s and 108 /24s Percentage of available address space announced: 32.3 Percentage of allocated address space announced: 59.2 Percentage of available address space allocated: 54.6 Total number of prefixes smaller than registry allocations: 46871 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18951 Total APNIC prefixes after maximum aggregation: 11227 Prefixes being announced from the APNIC address blocks: 17461 Unique aggregates announced from the APNIC address blocks: 10634 APNIC Region origin ASes present in the Internet Routing Table: 1586 APNIC Region origin ASes announcing only one prefix: 515 APNIC Region transit ASes present in the Internet Routing Table: 274 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 91033056 Equivalent to 5 /8s, 109 /16s and 13 /24s Percentage of available APNIC address space announced: 59.9 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: 76668 Total ARIN prefixes after maximum aggregation: 48096 Prefixes being announced from the ARIN address blocks: 54172 Unique aggregates announced from the ARIN address blocks: 18183 ARIN Region origin ASes present in the Internet Routing Table: 7948 ARIN Region origin ASes announcing only one prefix: 2557 ARIN Region transit ASes present in the Internet Routing Table: 794 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 190387280 Equivalent to 11 /8s, 89 /16s and 20 /24s Percentage of available ARIN address space announced: 66.8 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 25600 - 26623 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 200/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 19421 Total RIPE prefixes after maximum aggregation: 14645 Prefixes being announced from the RIPE address blocks: 16086 Unique aggregates announced from the RIPE address blocks: 10527 RIPE Region origin ASes present in the Internet Routing Table: 3934 RIPE Region origin ASes announcing only one prefix: 2120 RIPE Region transit ASes present in the Internet Routing Table: 742 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 113219584 Equivalent to 6 /8s, 191 /16s and 152 /24s Percentage of available RIPE address space announced: 75.0 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 1262 1194 898 Telstra Pty Ltd 4538 561 1279 27 China Education and Research 703 412 377 324 UUNET 2907 366 1848 344 SINET Japan 2764 360 358 331 connect.com.au pty ltd 7474 320 296 213 Optus Communications Pty Ltd 17557 298 20 95 Pakistan Telecom 4134 295 2182 104 Data Communications Bureau 4755 279 110 73 Videsh Sanchar Nigam Ltd. Aut 4766 249 1506 156 Korea Internet Exchange for " 4814 220 79 14 China Telecom (Group) 9583 180 32 5 Satyam Infoway Ltd., 17676 180 2802 32 XTAGE CORPORATION 9443 169 45 68 Primus Telecommunications 7539 147 189 142 TANet2, sponsored by NSC, TAI 9768 144 385 74 Korea Telecom 7657 132 22 91 The Internet Group Limited 9800 125 191 18 CHINA UNICOM 4713 115 1009 106 NTT Communications Corporatio 4621 114 11 62 UNINET-TH RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 906 2434 757 UUNET - Commercial IP service 3301 396 923 346 TeliaNet Sweden 5515 320 783 180 Sonera Solution Autonomous Sy 3215 289 641 178 France Telecom Transpac 3320 269 1965 208 Deutsche Telekom AG 680 237 2150 234 DFN-IP service G-WiN 5400 210 85 98 BT Ignite European Backbone 1257 208 446 203 SWIPnet Swedish IP Network 719 182 306 128 LANLINK autonomous system 786 177 1873 177 The JANET IP Service 3303 142 548 141 Swisscom Ltd 8708 142 24 139 Romania Data Systems S.A. 2856 128 787 118 BTnet UK Regional network 12302 124 18 31 MobiFon S.A. 3246 112 317 107 Song Networks 5511 110 192 88 France Telecom 3233 107 10 9 RNC - Romanian Natioanal R&D 3269 106 658 63 TELECOM ITALIA 2874 101 85 38 Global One Services AB 2830 95 243 75 UUNET Dual-Homed customers ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1802 9145 1367 UUNET Technologies, Inc. 7018 1317 7431 938 AT&T 3908 1010 1659 498 Supernet, Inc. 1239 812 3248 647 Sprint 852 754 1175 451 Telus Advanced Communications 1 711 8052 446 GENUITY 4323 639 442 263 Time Warner Communications, I 7843 630 367 225 Adelphia Corp. 7132 593 663 137 Southwestern Bell Internet Se 690 521 75 332 Merit Network 7046 514 886 316 UUNET Technologies, Inc. 209 505 2057 343 Qwest 7066 486 203 254 Virginia Polytechnic Institut 7029 451 164 54 Alltel Information Services, 3549 438 824 314 Global Crossing 6197 379 611 37 BellSouth Network Solutions, 15290 378 297 194 AT&T Canada IES 2914 365 2077 365 Verio, Inc. 6347 348 370 75 SAVVIS Communications Corpora 4355 334 278 71 EarthLink, Inc. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 561 534 China Education and Research 3908 1010 512 Supernet, Inc. 7132 593 456 Southwestern Bell Internet Se 7843 630 405 Adelphia Corp. 7029 451 397 Alltel Information Services, 7018 1317 379 AT&T 4323 639 376 Time Warner Communications, I 1221 1262 364 Telstra Pty Ltd 6197 379 342 BellSouth Network Solutions, 852 754 303 Telus Advanced Communications 1657 279 277 University of Louisville 4151 290 274 USDA 6347 348 273 SAVVIS Communications Corpora 1 711 265 GENUITY 4355 334 263 EarthLink, Inc. 18566 240 236 Covad Communications 7066 486 232 Virginia Polytechnic Institut 376 329 224 Reseau Interordinateurs Scien 7303 267 207 Telecom Argentina Stet-France 4755 279 206 Videsh Sanchar Nigam Ltd. Aut List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 26705 UNALLOCATED 12.111.19.0/24 701 UUNET Technologies, 64511 RESERVED 147.73.0.0/16 5050 Pittsburgh Supercomp 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 192.44.0.0/19 702 UUNET - Commercial IP service 192.58.92.0/24 19548 Adelphia Business Solutions 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 192.119.135.0/24 270 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 192.156.164.0/24 19548 Adelphia Business Solutions 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 /8:19 /9:8 /10:7 /11:12 /12:37 /13:84 /14:231 /15:418 /16:7293 /17:1472 /18:2692 /19:7790 /20:7570 /21:5279 /22:7993 /23:9696 /24:63613 /25:201 /26:178 /27:100 /28:95 /29:70 /30:112 /31:0 /32:72 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 595 1010 Supernet, Inc. 702 554 906 UUNET - Commercial IP service 701 487 1802 UUNET Technologies, Inc. 690 467 521 Merit Network 7843 429 630 Adelphia Corp. 7066 389 486 Virginia Polytechnic Institut 7018 379 1317 AT&T 7029 356 451 Alltel Information Services, 1657 278 279 University of Louisville 6197 264 379 BellSouth Network Solutions, 6198 243 316 BellSouth Network Solutions, 18566 236 240 Covad Communications 3301 234 396 TeliaNet Sweden 3215 221 289 France Telecom Transpac 1239 214 812 Sprint 1 208 711 GENUITY 1580 202 215 ANOSCEUR 3320 201 269 Deutsche Telekom AG 4355 192 334 EarthLink, Inc. 7046 188 514 UUNET Technologies, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 4:3 12:535 13:10 15:2 17:6 20:3 24:709 25:1 32:41 38:9 40:6 44:1 57:14 61:324 62:246 63:1857 64:1234 65:1426 66:988 67:97 68:81 80:260 81:43 128:67 129:151 130:21 131:55 132:11 133:2 134:124 135:10 136:500 137:96 138:151 139:72 140:174 141:46 142:70 143:50 144:139 145:17 146:240 147:141 148:244 149:79 150:39 151:69 152:271 153:36 154:11 155:114 156:70 157:116 158:67 159:134 160:22 161:76 162:213 163:87 164:263 165:126 166:217 167:253 168:294 169:60 170:233 171:3 192:5466 193:2374 194:2075 195:802 196:415 198:3676 199:3158 200:2725 202:3333 203:4741 204:3259 205:2187 206:2544 207:2565 208:2612 209:2705 210:599 211:238 212:904 213:716 214:9 215:19 216:2854 217:475 218:31 219:1 End of report