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 If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 30 Aug, 2003 Analysis Summary ---------------- BGP routing table entries examined: 127943 Prefixes after maximum aggregation: 80027 Unique aggregates announced to Internet: 61263 Total ASes present in the Internet Routing Table: 15751 Origin-only ASes present in the Internet Routing Table: 13658 Origin ASes announcing only one prefix: 6212 Transit ASes present in the Internet Routing Table: 2093 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 26 Illegal AS announcements present in the Routing Table: 3 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 15 Number of addresses announced to Internet: 1239924000 Equivalent to 73 /8s, 231 /16s and 189 /24s Percentage of available address space announced: 33.5 Percentage of allocated address space announced: 59.8 Percentage of available address space allocated: 56.0 Total number of prefixes smaller than registry allocations: 56939 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 22305 Total APNIC prefixes after maximum aggregation: 12682 Prefixes being announced from the APNIC address blocks: 20737 Unique aggregates announced from the APNIC address blocks: 12263 APNIC Region origin ASes present in the Internet Routing Table: 1890 APNIC Region origin ASes announcing only one prefix: 545 APNIC Region transit ASes present in the Internet Routing Table: 312 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 121106176 Equivalent to 7 /8s, 55 /16s and 239 /24s Percentage of available APNIC address space announced: 65.3 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 77902 Total ARIN prefixes after maximum aggregation: 48613 Prefixes being announced from the ARIN address blocks: 55597 Unique aggregates announced from the ARIN address blocks: 17253 ARIN Region origin ASes present in the Internet Routing Table: 8623 ARIN Region origin ASes announcing only one prefix: 2953 ARIN Region transit ASes present in the Internet Routing Table: 830 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 196363040 Equivalent to 11 /8s, 180 /16s and 67 /24s Percentage of available ARIN address space announced: 73.2 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 - 26591, 26624 - 27647, 29695 - 30719 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 199/8, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 22369 Total RIPE prefixes after maximum aggregation: 16413 Prefixes being announced from the RIPE address blocks: 18986 Unique aggregates announced from the RIPE address blocks: 12754 RIPE Region origin ASes present in the Internet Routing Table: 4819 RIPE Region origin ASes announcing only one prefix: 2615 RIPE Region transit ASes present in the Internet Routing Table: 851 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 135214400 Equivalent to 8 /8s, 15 /16s and 53 /24s Percentage of available RIPE address space announced: 73.3 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, 28672 - 29695 RIPE Address Blocks 62/8, 80/7, 82/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5365 Total LACNIC prefixes after maximum aggregation: 2319 Prefixes being announced from the LACNIC address blocks: 4807 Unique aggregates announced from the LACNIC address blocks: 3132 LACNIC Region origin ASes present in the Internet Routing Table: 348 LACNIC Region origin ASes announcing only one prefix: 99 LACNIC Region transit ASes present in the Internet Routing Table: 70 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 20 Number of LACNIC addresses announced to Internet: 13049600 Equivalent to 0 /8s, 199 /16s and 31 /24s Percentage of available LACNIC address space announced: 38.9 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 981 1125 694 Telstra Pty Ltd 4755 398 134 73 Videsh Sanchar Nigam Ltd. Aut 2907 375 1911 349 SINET Japan 703 340 356 269 UUNET 4134 333 2220 112 Data Communications Bureau 17557 304 26 136 Pakistan Telecom 2764 299 323 267 connect.com.au pty ltd 7474 265 307 206 Optus Communications Pty Ltd 17676 254 3910 22 XTAGE CORPORATION 9583 243 37 21 Satyam Infoway Ltd., 4766 238 2461 170 Korea Internet Exchange for " 3786 237 773 203 DACOM Corporation 9800 198 326 56 CHINA UNICOM 9443 182 58 82 Primus Telecommunications 9498 176 16 33 BHARTI BT INTERNET LTD. 4538 170 1538 21 China Education and Research 9929 170 155 34 China Netcom Corp. 17642 156 41 117 RequestDSL BGP AS# for Sydney 9942 155 69 100 COMindico Australia 9238 140 9 21 TATA ISP ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1485 8755 1043 UUNET Technologies, Inc. 7018 1388 7137 984 AT&T 1239 893 3030 643 Sprint 3908 888 1418 474 Supernet, Inc. 189 673 451 333 Genuity 18566 672 160 8 Covad Communications 4323 624 551 179 Time Warner Communications, I 6197 571 387 248 BellSouth Network Solutions, 7843 548 419 182 Adelphia Corp. 852 517 1123 411 Telus Advanced Communications 209 514 2129 298 Qwest 6198 514 277 197 BellSouth Network Solutions, 7066 490 205 262 Virginia Polytechnic Institut 20115 480 200 290 Charter Communications 3356 475 10659 394 Level 3 Communications, LLC 1 467 1056 301 GENUITY 705 462 182 288 UUNET Technologies, Inc. 7132 413 6657 240 Southwestern Bell Internet Se 690 410 59 276 Merit Network 4355 392 340 111 EarthLink, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 727 2122 602 UUNET - Commercial IP service 3301 294 1168 280 TeliaNet Sweden 3320 268 1989 228 Deutsche Telekom AG 1257 249 375 190 SWIPnet Swedish IP Network 8220 246 431 235 COLT Internet - International 680 232 2054 229 DFN-IP service G-WiN 3215 213 736 120 France Telecom Transpac 719 193 307 122 LANLINK autonomous system 5515 185 779 148 Sonera Solution Autonomous Sy 5400 180 175 131 BT Ignite European Backbone 786 179 1874 179 The JANET IP Service 8708 159 111 155 Romania Data Systems S.A. 3303 143 540 140 Swisscom Ltd 12302 126 18 33 MobiFon S.A. 3246 122 360 120 Song Networks 3269 117 821 64 TELECOM ITALIA 2856 112 1295 103 BTnet UK Regional network 3352 111 828 31 Ibernet, Internet Access Netw 2647 101 4129 45 SITA 6746 88 12 75 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 319 103 114 ImpSat 7303 234 39 64 Telecom Argentina Stet-France 8151 222 334 117 UniNet S.A. de C.V. 11172 178 77 43 Servicios Alestra S.A de C.V 16814 151 10 17 NSS, S.A. 6503 133 205 94 AVANTEL, S.A. 10620 127 8 28 TVCABLE BOGOTA 11340 108 3 39 Red Universitaria Nacional 11992 86 8 36 Integrated Systems 6147 83 70 20 Telefonica Del Peru 8065 80 8 17 Empresas Publicas de Medellin 6535 75 5 18 Chilesat Servicios Empresari 15311 75 14 38 Telefonica Empresas 11830 74 6 29 Instituto Costarricense de El 1916 73 306 43 Fundacao de Amparo a Pesquisa 4270 68 18 9 Red de Interconexion Universi 7927 67 6 40 Global One Venezuela 7080 64 4 1 Electronica y Comunicaciones 7984 59 12 40 Global One Colombia 13999 56 36 8 Mega Cable S.A. de C.V. Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 672 664 Covad Communications 4323 624 445 Time Warner Communications, I 3908 888 414 Supernet, Inc. 7018 1388 404 AT&T 7843 548 366 Adelphia Corp. 189 673 340 Genuity 4755 398 325 Videsh Sanchar Nigam Ltd. Aut 6197 571 323 BellSouth Network Solutions, 11305 358 320 Interland Incorporated 6198 514 317 BellSouth Network Solutions, 27364 317 294 Armstrong Cable Services 1221 981 287 Telstra Pty Ltd 4355 392 281 EarthLink, Inc. 6347 356 277 SAVVIS Communications Corpora 22909 291 273 Comcast Cable Corporation 1239 893 250 Sprint 226 291 249 Los Nettos 25844 241 239 Skadden, Arps, Slate, Meagher 376 353 238 Reseau Interordinateurs Scien 17676 254 232 XTAGE CORPORATION List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18413 UNALLOCATED 61.67.0.0/20 4747 Taiwan Telecommunica 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 65100 PRIVATE 210.104.28.0/25 9768 Korea Telecom Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.43.230.0/24 4738 South Australian Academic Res 192.44.0.0/19 702 UUNET - Commercial IP service 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 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.153.136.0/21 568 DISO-UNRRA 192.172.0.0/19 568 DISO-UNRRA 192.228.80.0/24 30122 INTERNET SOFTWARE CONSORTIUM, Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:20 /9:4 /10:6 /11:12 /12:55 /13:98 /14:262 /15:475 /16:7410 /17:1737 /18:3077 /19:8443 /20:8712 /21:6362 /22:9430 /23:10907 /24:70278 /25:168 /26:220 /27:150 /28:26 /29:13 /30:51 /31:0 /32:27 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 666 672 Covad Communications 189 588 673 Genuity 3908 566 888 Supernet, Inc. 7018 493 1388 AT&T 701 444 1485 UUNET Technologies, Inc. 702 442 727 UUNET - Commercial IP service 6197 436 571 BellSouth Network Solutions, 6198 406 514 BellSouth Network Solutions, 7066 386 490 Virginia Polytechnic Institut 690 371 410 Merit Network 20115 328 480 Charter Communications 27364 311 317 Armstrong Cable Services 1239 307 893 Sprint 10753 298 312 XCOM Technologies, INC. 11305 281 358 Interland Incorporated 7843 264 548 Adelphia Corp. 25844 241 241 Skadden, Arps, Slate, Meagher 4355 210 392 EarthLink, Inc. 3320 207 268 Deutsche Telekom AG 3356 207 475 Level 3 Communications, LLC Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:2 12:703 13:1 15:4 16:1 17:4 20:6 24:838 25:1 32:85 38:45 40:23 44:2 55:1 57:14 61:300 62:393 63:1853 64:1781 65:1997 66:2693 67:257 68:390 69:256 80:409 81:124 82:13 128:130 129:171 130:62 131:82 132:13 134:172 135:7 136:186 137:114 138:117 139:47 140:146 141:134 142:99 143:45 144:90 145:13 146:275 147:62 148:302 149:76 150:123 151:68 152:218 153:57 154:4 155:127 156:68 157:48 158:118 159:135 160:45 161:75 162:360 163:78 164:312 165:146 166:96 167:312 168:179 169:95 170:321 171:9 192:5376 193:2477 194:1980 195:1186 196:473 198:3619 199:2739 200:2966 202:3890 203:5264 204:3021 205:2044 206:2337 207:2547 208:2565 209:2856 210:898 211:301 212:974 213:923 214:16 215:22 216:3276 217:707 218:102 219:74 220:102 221:10 End of report