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 25 Apr, 2003 Analysis Summary ---------------- BGP routing table entries examined: 125034 Prefixes after maximum aggregation: 78339 Unique aggregates announced to Internet: 59209 Total ASes present in the Internet Routing Table: 15085 Origin-only ASes present in the Internet Routing Table: 13083 Origin ASes announcing only one prefix: 5929 Transit ASes present in the Internet Routing Table: 2002 Transit-only ASes present in the Internet Routing Table: 74 Average AS path length visible in the Internet Routing Table: 4.8 Max AS path length visible: 255 Illegal AS announcements present in the Routing Table: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 20 Number of addresses announced to Internet: 1225460768 Equivalent to 73 /8s, 11 /16s and 12 /24s Percentage of available address space announced: 33.1 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 55.9 Total number of prefixes smaller than registry allocations: 54233 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 21127 Total APNIC prefixes after maximum aggregation: 12280 Prefixes being announced from the APNIC address blocks: 19587 Unique aggregates announced from the APNIC address blocks: 11959 APNIC Region origin ASes present in the Internet Routing Table: 1785 APNIC Region origin ASes announcing only one prefix: 522 APNIC Region transit ASes present in the Internet Routing Table: 298 Average APNIC Region AS path length visible: 5.0 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 110650848 Equivalent to 6 /8s, 152 /16s and 101 /24s Percentage of available APNIC address space announced: 59.6 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: 77124 Total ARIN prefixes after maximum aggregation: 48056 Prefixes being announced from the ARIN address blocks: 55210 Unique aggregates announced from the ARIN address blocks: 16616 ARIN Region origin ASes present in the Internet Routing Table: 8361 ARIN Region origin ASes announcing only one prefix: 2857 ARIN Region transit ASes present in the Internet Routing Table: 799 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 191099136 Equivalent to 11 /8s, 99 /16s and 241 /24s Percentage of available ARIN address space announced: 71.2 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: 21450 Total RIPE prefixes after maximum aggregation: 15776 Prefixes being announced from the RIPE address blocks: 18002 Unique aggregates announced from the RIPE address blocks: 12057 RIPE Region origin ASes present in the Internet Routing Table: 4533 RIPE Region origin ASes announcing only one prefix: 2462 RIPE Region transit ASes present in the Internet Routing Table: 807 Average RIPE Region AS path length visible: 5.4 Max RIPE Region AS path length visible: 16 Number of RIPE addresses announced to Internet: 129303424 Equivalent to 7 /8s, 181 /16s and 3 /24s Percentage of available RIPE address space announced: 70.1 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, 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: 5329 Total LACNIC prefixes after maximum aggregation: 2227 Prefixes being announced from the LACNIC address blocks: 4745 Unique aggregates announced from the LACNIC address blocks: 2931 LACNIC Region origin ASes present in the Internet Routing Table: 334 LACNIC Region origin ASes announcing only one prefix: 88 LACNIC Region transit ASes present in the Internet Routing Table: 67 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 12482048 Equivalent to 0 /8s, 190 /16s and 118 /24s Percentage of available LACNIC address space announced: 37.2 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 1101 1104 789 Telstra Pty Ltd 4755 415 136 75 Videsh Sanchar Nigam Ltd. Aut 703 398 383 312 UUNET 2907 385 1976 362 SINET Japan 17557 376 28 138 Pakistan Telecom 2764 322 341 290 connect.com.au pty ltd 4814 287 85 22 China Telecom (Group) 7474 270 276 206 Optus Communications Pty Ltd 17676 244 3766 22 XTAGE CORPORATION 3786 242 773 209 DACOM Corporation 4134 224 2014 114 Data Communications Bureau 9583 220 33 14 Satyam Infoway Ltd., 4766 214 2078 160 Korea Internet Exchange for " 9443 179 58 78 Primus Telecommunications 9800 177 250 55 CHINA UNICOM 9238 140 8 17 TATA ISP 4739 130 57 119 Commerical Internet eXchange 9498 129 9 12 BHARTI BT INTERNET LTD. 9768 127 384 64 Korea Telecom 4716 126 729 120 TTnet ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1577 8923 1112 UUNET Technologies, Inc. 7018 1349 7164 937 AT&T 7132 959 6476 209 Southwestern Bell Internet Se 1239 958 3095 676 Sprint 3908 919 1570 470 Supernet, Inc. 4151 908 691 60 USDA 1 732 2749 465 GENUITY 7843 729 408 182 Adelphia Corp. 189 704 341 289 Genuity 4323 576 514 169 Time Warner Communications, I 852 547 1110 430 Telus Advanced Communications 18566 546 144 5 Covad Communications 705 529 278 234 UUNET Technologies, Inc. 2386 514 482 276 AT&T Data Communications Serv 3561 513 2357 335 Cable & Wireless USA 690 494 72 312 Merit Network 209 492 2120 293 Qwest 7066 481 204 257 Virginia Polytechnic Institut 6197 480 340 196 BellSouth Network Solutions, 20115 475 189 295 Charter Communications RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 774 2186 644 UUNET - Commercial IP service 3301 309 1173 299 TeliaNet Sweden 3215 303 851 175 France Telecom Transpac 3320 265 2004 225 Deutsche Telekom AG 680 231 2051 228 DFN-IP service G-WiN 1257 227 327 189 SWIPnet Swedish IP Network 5400 204 112 114 BT Ignite European Backbone 8220 200 365 189 COLT Internet - International 719 197 307 125 LANLINK autonomous system 5515 196 779 168 Sonera Solution Autonomous Sy 786 180 1874 180 The JANET IP Service 20858 164 17 3 This AS will be used to conne 8708 155 44 151 Romania Data Systems S.A. 3303 141 517 140 Swisscom Ltd 12302 127 18 34 MobiFon S.A. 2856 120 1298 110 BTnet UK Regional network 3269 112 755 63 TELECOM ITALIA 3246 109 383 106 Song Networks 3352 108 750 31 Ibernet, Internet Access Netw 2874 96 85 39 Global One Services AB LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 294 99 105 ImpSat 7303 253 36 66 Telecom Argentina Stet-France 8151 216 334 118 UniNet S.A. de C.V. 11172 163 66 33 Servicios Alestra S.A de C.V 6503 154 207 108 AVANTEL, S.A. 16814 139 9 18 NSS, S.A. 10620 113 7 33 TVCABLE BOGOTA 6147 91 62 20 Telefonica Del Peru 11992 89 8 37 Integrated Systems 11340 82 2 26 Red Universitaria Nacional 1916 75 306 45 Fundacao de Amparo a Pesquisa 8065 75 6 15 Empresas Publicas de Medellin 13999 74 36 8 Mega Cable S.A. de C.V. 6535 73 5 22 Chilesat Servicios Empresari 15311 72 28 36 Telefonica Empresas 11830 66 4 26 Instituto Costarricense de El 4270 65 18 10 Red de Interconexion Universi 7080 64 4 1 Electronica y Comunicaciones 7927 64 5 39 Global One Venezuela 7984 61 11 41 Global One Colombia Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4151 908 848 USDA 7132 959 750 Southwestern Bell Internet Se 7843 729 547 Adelphia Corp. 18566 546 541 Covad Communications 3908 919 449 Supernet, Inc. 189 704 415 Genuity 7018 1349 412 AT&T 4323 576 407 Time Warner Communications, I 4755 415 340 Videsh Sanchar Nigam Ltd. Aut 1221 1101 312 Telstra Pty Ltd 705 529 295 UUNET Technologies, Inc. 6347 371 292 SAVVIS Communications Corpora 6197 480 284 BellSouth Network Solutions, 22927 297 284 TELEFONICA DE ARGENTINA 6198 458 283 BellSouth Network Solutions, 1239 958 282 Sprint 4355 388 279 EarthLink, Inc. 1 732 267 GENUITY 4814 287 265 China Telecom (Group) 27364 270 252 Armstrong Cable Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1880 Stupi, house man's p 64515 PRIVATE 202.174.42.0/24 17909 AirNet Commercial Au 64514 PRIVATE 203.28.47.0/24 17909 AirNet Commercial Au 64512 PRIVATE 203.34.180.0/24 17909 AirNet Commercial Au Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 39.0.0.0/8 4554 Exchange Point Blocks 132.0.0.0/10 568 DISO-UNRRA 135.0.0.0/13 10455 Lucent Technologies 137.0.0.0/13 568 DISO-UNRRA 158.0.0.0/13 568 DISO-UNRRA 192.16.52.0/24 1239 Sprint 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 192.136.135.0/24 1239 Sprint 192.153.136.0/21 568 DISO-UNRRA 192.158.254.0/24 705 UUNET Technologies, Inc. 192.172.0.0/19 568 DISO-UNRRA 192.243.36.0/23 2044 AUSNet, Inc. Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:7 /10:8 /11:13 /12:50 /13:93 /14:251 /15:463 /16:7386 /17:1666 /18:2964 /19:8371 /20:8343 /21:6028 /22:8943 /23:10537 /24:69430 /25:137 /26:186 /27:53 /28:25 /29:13 /30:24 /31:0 /32:25 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 189 625 704 Genuity 3908 575 919 Supernet, Inc. 18566 540 546 Covad Communications 702 481 774 UUNET - Commercial IP service 7018 477 1349 AT&T 7843 471 729 Adelphia Corp. 690 443 494 Merit Network 701 429 1577 UUNET Technologies, Inc. 7066 380 481 Virginia Polytechnic Institut 6198 361 458 BellSouth Network Solutions, 6197 358 480 BellSouth Network Solutions, 1239 356 958 Sprint 20115 341 475 Charter Communications 11305 311 334 Interland Incorporated 2386 308 514 AT&T Data Communications Serv 4814 274 287 China Telecom (Group) 27364 263 270 Armstrong Cable Services 1 257 732 GENUITY 22927 235 297 TELEFONICA DE ARGENTINA 3215 226 303 France Telecom Transpac Number of /24s announced per /8 block (Global) ---------------------------------------------- 12:687 13:1 15:4 17:3 20:8 24:825 25:1 32:85 38:61 40:18 44:2 55:1 57:16 61:429 62:535 63:1902 64:1558 65:1932 66:2390 67:168 68:358 69:114 80:341 81:129 128:157 129:178 130:45 131:82 132:11 133:2 134:155 135:4 136:113 137:109 138:109 139:66 140:147 141:105 142:95 143:44 144:102 145:15 146:270 147:94 148:278 149:72 150:43 151:68 152:246 153:57 154:2 155:108 156:46 157:40 158:124 159:144 160:37 161:74 162:142 163:78 164:306 165:140 166:84 167:331 168:407 169:57 170:317 171:7 192:5349 193:2412 194:1991 195:1004 196:464 198:3564 199:3587 200:2952 202:3775 203:5186 204:3071 205:2005 206:2424 207:2400 208:2648 209:2843 210:775 211:311 212:963 213:797 214:21 215:21 216:3363 217:622 218:90 219:21 220:92 End of report