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 23 Aug, 2002 Analysis Summary ---------------- BGP routing table entries examined: 114611 Prefixes after maximum aggregation: 74279 Unique aggregates announced to Internet: 55119 Total ASes present in the Internet Routing Table: 13599 Origin-only ASes present in the Internet Routing Table: 11764 Origin ASes announcing only one prefix: 5242 Transit ASes present in the Internet Routing Table: 1835 Transit-only ASes present in the Internet Routing Table: 57 Average AS path length visible in the Internet Routing Table: 5.4 Max AS path length visible: 18 Illegal AS announcements present in the Routing Table: 1 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: 1184116636 Equivalent to 70 /8s, 148 /16s and 47 /24s Percentage of available address space announced: 31.9 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 54.6 Total number of prefixes smaller than registry allocations: 46611 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 18938 Total APNIC prefixes after maximum aggregation: 11244 Prefixes being announced from the APNIC address blocks: 17468 Unique aggregates announced from the APNIC address blocks: 10669 APNIC Region origin ASes present in the Internet Routing Table: 1589 APNIC Region origin ASes announcing only one prefix: 519 APNIC Region transit ASes present in the Internet Routing Table: 276 Average APNIC Region AS path length visible: 5.3 Max APNIC Region AS path length visible: 12 Number of APNIC addresses announced to Internet: 93320032 Equivalent to 5 /8s, 143 /16s and 243 /24s Percentage of available APNIC address space announced: 61.4 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: 76288 Total ARIN prefixes after maximum aggregation: 48338 Prefixes being announced from the ARIN address blocks: 54205 Unique aggregates announced from the ARIN address blocks: 18196 ARIN Region origin ASes present in the Internet Routing Table: 7991 ARIN Region origin ASes announcing only one prefix: 2578 ARIN Region transit ASes present in the Internet Routing Table: 804 Average ARIN Region AS path length visible: 5.3 Max ARIN Region AS path length visible: 18 Number of ARIN addresses announced to Internet: 191313008 Equivalent to 11 /8s, 103 /16s and 52 /24s Percentage of available ARIN address space announced: 67.1 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: 19385 Total RIPE prefixes after maximum aggregation: 14697 Prefixes being announced from the RIPE address blocks: 16103 Unique aggregates announced from the RIPE address blocks: 10606 RIPE Region origin ASes present in the Internet Routing Table: 3962 RIPE Region origin ASes announcing only one prefix: 2145 RIPE Region transit ASes present in the Internet Routing Table: 742 Average RIPE Region AS path length visible: 5.8 Max RIPE Region AS path length visible: 17 Number of RIPE addresses announced to Internet: 113397760 Equivalent to 6 /8s, 194 /16s and 80 /24s Percentage of available RIPE address space announced: 75.1 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, 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 1208 1189 886 Telstra Pty Ltd 4538 577 1330 18 China Education and Research 703 412 376 321 UUNET 2907 365 1833 343 SINET Japan 2764 358 358 329 connect.com.au pty ltd 7474 317 292 212 Optus Communications Pty Ltd 4134 301 2222 96 Data Communications Bureau 4755 282 142 74 Videsh Sanchar Nigam Ltd. Aut 17557 272 20 96 Pakistan Telecom 4766 250 1507 157 Korea Internet Exchange for " 4814 231 79 14 China Telecom (Group) 17676 190 2962 35 XTAGE CORPORATION 9443 178 57 66 Primus Telecommunications 9583 171 32 5 Satyam Infoway Ltd., 7539 146 188 141 TANet2, sponsored by NSC, TAI 9768 144 385 74 Korea Telecom 7657 131 22 91 The Internet Group Limited 9800 121 187 23 CHINA UNICOM 4621 113 11 64 UNINET-TH 4713 113 993 104 NTT Communications Corporatio RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 895 2430 751 UUNET - Commercial IP service 3301 399 924 346 TeliaNet Sweden 5515 320 783 180 Sonera Solution Autonomous Sy 3215 291 641 180 France Telecom Transpac 3320 246 1964 212 Deutsche Telekom AG 680 237 2150 234 DFN-IP service G-WiN 5400 213 85 101 BT Ignite European Backbone 1257 210 444 205 SWIPnet Swedish IP Network 719 185 306 129 LANLINK autonomous system 786 177 1873 177 The JANET IP Service 8708 145 41 141 Romania Data Systems S.A. 3303 143 546 142 Swisscom Ltd 2856 126 786 116 BTnet UK Regional network 12302 126 18 33 MobiFon S.A. 3246 112 317 107 Song Networks 5511 110 192 88 France Telecom 3233 108 10 9 RNC - Romanian Natioanal R&D 3269 106 658 63 TELECOM ITALIA 2874 102 85 39 Global One Services AB 8220 100 166 96 COLT Internet - International ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1788 9110 1362 UUNET Technologies, Inc. 7018 1295 7213 924 AT&T 3908 1019 1660 496 Supernet, Inc. 1239 821 3192 644 Sprint 852 731 1175 451 Telus Advanced Communications 1 670 8039 431 GENUITY 7843 656 371 273 Adelphia Corp. 7046 615 882 318 UUNET Technologies, Inc. 7132 594 664 137 Southwestern Bell Internet Se 4323 551 434 172 Time Warner Communications, I 690 519 75 326 Merit Network 209 509 2074 346 Qwest 7066 489 203 256 Virginia Polytechnic Institut 2548 459 1145 272 Business Internet, Inc. 3549 421 726 302 Global Crossing 15290 373 249 188 AT&T Canada IES 6197 362 254 182 BellSouth Network Solutions, 2914 359 2042 359 Verio, Inc. 6347 347 370 76 SAVVIS Communications Corpora 376 340 391 107 Reseau Interordinateurs Scien Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4538 577 559 China Education and Research 3908 1019 523 Supernet, Inc. 7132 594 457 Southwestern Bell Internet Se 7843 656 383 Adelphia Corp. 4323 551 379 Time Warner Communications, I 7018 1295 371 AT&T 1221 1208 322 Telstra Pty Ltd 7046 615 297 UUNET Technologies, Inc. 4151 305 289 USDA 852 731 280 Telus Advanced Communications 6347 347 271 SAVVIS Communications Corpora 4355 340 268 EarthLink, Inc. 18566 260 256 Covad Communications 1 670 239 GENUITY 7066 489 233 Virginia Polytechnic Institut 376 340 233 Reseau Interordinateurs Scien 4814 231 217 China Telecom (Group) 4755 282 208 Videsh Sanchar Nigam Ltd. Aut 4134 301 205 Data Communications Bureau 1580 212 200 ANOSCEUR List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 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 192.136.136.0/24 7046 UUNET Technologies, Inc. 192.136.136.0/22 568 DISO-UNRRA 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 192.208.29.0/24 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 /8:18 /9:6 /10:7 /11:12 /12:37 /13:86 /14:235 /15:424 /16:7306 /17:1482 /18:2678 /19:7808 /20:7596 /21:5291 /22:8015 /23:9696 /24:63175 /25:208 /26:192 /27:109 /28:77 /29:41 /30:76 /31:1 /32:35 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 3908 601 1019 Supernet, Inc. 702 546 895 UUNET - Commercial IP service 701 496 1788 UUNET Technologies, Inc. 690 465 519 Merit Network 7843 456 656 Adelphia Corp. 7066 388 489 Virginia Polytechnic Institut 7018 385 1295 AT&T 7046 290 615 UUNET Technologies, Inc. 6197 263 362 BellSouth Network Solutions, 18566 256 260 Covad Communications 6198 242 318 BellSouth Network Solutions, 3301 237 399 TeliaNet Sweden 1239 224 821 Sprint 3215 223 291 France Telecom Transpac 1580 199 212 ANOSCEUR 4355 195 340 EarthLink, Inc. 4323 190 551 Time Warner Communications, I 209 187 509 Qwest 5400 187 213 BT Ignite European Backbone 4538 186 577 China Education and Research Number of /24s announced per /8 block (Global) ---------------------------------------------- 3:1 4:3 12:543 13:10 15:2 17:6 20:4 24:818 25:1 32:41 38:8 40:6 44:1 55:1 57:14 61:317 62:237 63:1852 64:1234 65:1455 66:1049 67:96 68:92 80:262 81:45 128:65 129:157 130:21 131:55 132:11 133:2 134:124 135:9 136:502 137:96 138:147 139:67 140:188 141:73 142:68 143:50 144:139 145:17 146:258 147:142 148:249 149:80 150:41 151:57 152:266 153:37 154:11 155:116 156:71 157:114 158:67 159:140 160:20 161:73 162:124 163:87 164:264 165:127 166:103 167:265 168:120 169:62 170:192 171:3 192:5483 193:2370 194:2083 195:814 196:415 198:3671 199:3128 200:2612 202:3336 203:4731 204:3238 205:2150 206:2512 207:2498 208:2595 209:2693 210:611 211:238 212:880 213:722 214:8 215:20 216:2856 217:498 218:34 219:1 End of report