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 03 Apr, 2004 Analysis Summary ---------------- BGP routing table entries examined: 136188 Prefixes after maximum aggregation: 82840 Unique aggregates announced to Internet: 65992 Total ASes present in the Internet Routing Table: 16972 Origin-only ASes present in the Internet Routing Table: 14720 Origin ASes announcing only one prefix: 6791 Transit ASes present in the Internet Routing Table: 2252 Transit-only ASes present in the Internet Routing Table: 78 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 31 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: 18 Number of addresses announced to Internet: 1274647268 Equivalent to 75 /8s, 249 /16s and 146 /24s Percentage of available address space announced: 34.4 Percentage of allocated address space announced: 57.3 Percentage of available address space allocated: 60.0 Total number of prefixes smaller than registry allocations: 61146 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 25731 Total APNIC prefixes after maximum aggregation: 13593 Prefixes being announced from the APNIC address blocks: 24049 Unique aggregates announced from the APNIC address blocks: 13515 APNIC Region origin ASes present in the Internet Routing Table: 2037 APNIC Region origin ASes announcing only one prefix: 610 APNIC Region transit ASes present in the Internet Routing Table: 325 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 140351488 Equivalent to 8 /8s, 93 /16s and 152 /24s Percentage of available APNIC address space announced: 75.6 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: 78765 Total ARIN prefixes after maximum aggregation: 48587 Prefixes being announced from the ARIN address blocks: 60759 Unique aggregates announced from the ARIN address blocks: 21420 ARIN Region origin ASes present in the Internet Routing Table: 9072 ARIN Region origin ASes announcing only one prefix: 3214 ARIN Region transit ASes present in the Internet Routing Table: 890 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 221260320 Equivalent to 13 /8s, 48 /16s and 42 /24s Percentage of available ARIN address space announced: 73.3 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 31744 - 32767 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 24799 Total RIPE prefixes after maximum aggregation: 17781 Prefixes being announced from the RIPE address blocks: 21629 Unique aggregates announced from the RIPE address blocks: 14286 RIPE Region origin ASes present in the Internet Routing Table: 5321 RIPE Region origin ASes announcing only one prefix: 2842 RIPE Region transit ASes present in the Internet Routing Table: 924 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 157584640 Equivalent to 9 /8s, 100 /16s and 141 /24s Percentage of available RIPE address space announced: 55.3 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 30720 - 31743 RIPE Address Blocks 62/8, 80/5, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5733 Total LACNIC prefixes after maximum aggregation: 2195 Prefixes being announced from the LACNIC address blocks: 5406 Unique aggregates announced from the LACNIC address blocks: 3392 LACNIC Region origin ASes present in the Internet Routing Table: 371 LACNIC Region origin ASes announcing only one prefix: 100 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 14465024 Equivalent to 0 /8s, 220 /16s and 184 /24s Percentage of available LACNIC address space announced: 43.1 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1159 Total AfriNIC prefixes after maximum aggregation: 684 Prefixes being announced from the AfriNIC address blocks: 747 Unique aggregates announced from the AfriNIC address blocks: 588 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 25 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 1839104 Equivalent to 0 /8s, 28 /16s and 16 /24s Percentage of available AfriNIC address space announced: 11.0 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 866 1107 627 Telstra Pty Ltd 4134 705 2991 118 Data Communications Bureau 4766 461 2916 251 Korea Internet Exchange for " 9583 432 38 105 Satyam Infoway Ltd., 4755 364 129 52 Videsh Sanchar Nigam Ltd. Aut 2907 358 1862 334 SINET Japan 9443 355 69 80 Primus Telecommunications 703 341 374 263 UUNET 17557 321 23 160 Pakistan Telecom 17676 308 4556 42 XTAGE CORPORATION 9929 304 155 30 China Netcom Corp. 2764 295 274 241 connect.com.au pty ltd 7474 271 300 215 Optus Communications Pty Ltd 9942 224 71 127 COMindico Australia 9800 217 348 58 CHINA UNICOM 9498 190 31 42 BHARTI BT INTERNET LTD. 4780 189 193 26 Digital United Inc. 4837 174 1571 102 chinanet IDC center beijing n 9304 168 159 23 Hutchison Telecom (HK) 7633 160 23 50 Software Technology Parks of ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1418 6977 995 AT&T 701 1323 8561 952 UUNET Technologies, Inc. 1239 945 3040 641 Sprint 3356 877 10925 679 Level 3 Communications, LLC 209 729 3485 508 Qwest 18566 695 192 8 Covad Communications 4323 694 559 198 Time Warner Communications, I 6197 687 458 269 BellSouth Network Solutions, 20115 597 349 309 Charter Communications 6198 557 355 202 BellSouth Network Solutions, 7843 533 613 108 Adelphia Corp. 852 514 1127 404 Telus Advanced Communications 7066 499 207 271 Virginia Polytechnic Institut 7132 482 7847 332 Southwestern Bell Internet Se 2386 430 579 232 AT&T Data Communications Serv 27364 404 29 23 Armstrong Cable Services 4355 396 323 103 EarthLink, Inc. 690 393 57 267 Merit Network 22909 380 839 26 Comcast Cable Corporation 376 378 343 112 Reseau Interordinateurs Scien RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 671 2039 561 UUNET - Commercial IP service 3320 287 2477 235 Deutsche Telekom AG 3301 271 984 262 TeliaNet Sweden 8220 265 412 253 COLT Internet - International 680 245 2027 240 DFN-IP service G-WiN 1257 233 510 195 SWIPnet Swedish IP Network 719 223 288 103 LANLINK autonomous system 13083 216 51 8 Mannesmann Datenverarbeitung 3246 195 451 193 Song Networks 786 175 1826 175 The JANET IP Service 8708 173 111 162 Romania Data Systems S.A. 3215 166 819 72 France Telecom Transpac 5515 166 762 133 Sonera Solution Autonomous Sy 25186 163 187 105 France Telecom Transpac's Tra 5400 153 225 138 BT Ignite European Backbone 3303 137 620 137 Swisscom Ltd 6746 135 27 113 Dynamic Network Technologies, 3269 134 1101 65 TELECOM ITALIA 12302 121 17 28 MobiFon S.A. 2856 116 1278 106 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 378 122 69 ImpSat 8151 266 373 131 UniNet S.A. de C.V. 11172 207 75 43 Servicios Alestra S.A de C.V 16814 162 11 6 NSS, S.A. 7303 140 52 30 Telecom Argentina Stet-France 6503 138 220 93 AVANTEL, S.A. 6505 132 90 92 Global One Communicaoes Ltda 6147 125 78 19 Telefonica Del Peru 11556 88 73 25 Cable-Wireless Panama 11992 88 9 28 Integrated Systems 6535 79 5 19 Chilesat Servicios Empresari 15311 77 18 38 Telefonica Empresas 4270 69 18 9 Red de Interconexion Universi 11311 69 7 16 Sinectis S.A. 14535 69 6 5 Techtel S.A. 14420 65 4 24 ANDINATEL S.A. 5639 64 7 13 Telecommunications Services o 7080 64 4 1 Electronica y Comunicaciones 10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA 7738 62 234 14 Telecomunicacoes da Bahia S.A AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 252 632 219 The Internet Solution 5536 105 7 13 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 89 272 79 The Internetworking Company o 11845 36 9 11 Data Pro Business Online 3208 33 2 1 ARN Network 9129 32 3 4 UUNET Kenya 14988 25 16 1 Botswana Telecommunications C 16637 25 9 18 Johnnic e-Ventures 5713 24 93 22 Telkom SA Ltd 12455 24 4 2 Jambonet Autonomous system 24835 23 18 6 RAYA Telecom - Egypt 6713 22 38 9 Itissalat Al-MAGHRIB 8524 21 2 4 AUCEGYPT Autonomous System 10798 18 1 12 Standard Bank of South Africa 15706 16 2 3 Sudatel Internet Exchange Aut 15808 16 1 7 Communication Solutions Ltd i 12258 15 3 10 Vodacom Internet Company 20928 15 16 1 Noor Advanced Technologies AS 2609 13 26 4 Tunisia BackBone AS Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 695 687 Covad Communications 4134 705 587 Data Communications Bureau 4323 694 496 Time Warner Communications, I 7843 533 425 Adelphia Corp. 6197 687 418 BellSouth Network Solutions, 27364 404 381 Armstrong Cable Services 701 1323 371 UUNET Technologies, Inc. 6198 557 355 BellSouth Network Solutions, 22909 380 354 Comcast Cable Corporation 5668 363 348 Century Telephone 9583 432 327 Satyam Infoway Ltd., 22773 360 321 Cox Communications, Inc. Atla 4755 364 312 Videsh Sanchar Nigam Ltd. Aut 6140 378 309 ImpSat 1239 945 304 Sprint 4355 396 293 EarthLink, Inc. 20115 597 288 Charter Communications 6347 372 287 SAVVIS Communications Corpora 9443 355 275 Primus Telecommunications 9929 304 274 China Netcom Corp. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 29975 UNALLOCATED 196.46.160.0/20 3741 The Internet Solutio 18412 UNALLOCATED 211.77.0.0/19 9674 Far EastTone Telecom Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 132.0.0.0/10 568 DISO-UNRRA 137.0.0.0/13 568 DISO-UNRRA 156.154.16.0/22 7786 Lockheed Martin IMS 158.0.0.0/13 568 DISO-UNRRA 164.234.0.0/18 721 DLA Systems Automation Center 164.234.0.0/16 721 DLA Systems Automation Center 172.64.34.0/24 12735 Netone Bilgi Ve Iletisim Hizm 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 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T 192.136.79.0/24 719 LANLINK autonomous system 192.172.0.0/19 568 DISO-UNRRA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:18 /9:3 /10:6 /11:15 /12:57 /13:108 /14:293 /15:510 /16:7651 /17:1963 /18:3540 /19:9228 /20:9623 /21:6985 /22:9861 /23:11395 /24:74230 /25:190 /26:268 /27:158 /28:30 /29:4 /30:41 /31:0 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 678 695 Covad Communications 6197 527 687 BellSouth Network Solutions, 7018 519 1418 AT&T 3356 487 877 Level 3 Communications, LLC 702 409 671 UUNET - Commercial IP service 6198 404 557 BellSouth Network Solutions, 27364 397 404 Armstrong Cable Services 7066 394 499 Virginia Polytechnic Institut 701 364 1323 UUNET Technologies, Inc. 1239 358 945 Sprint 690 356 393 Merit Network 20115 348 597 Charter Communications 5668 318 363 Century Telephone 4766 283 461 Korea Internet Exchange for " 9583 279 432 Satyam Infoway Ltd., 25844 244 244 Skadden, Arps, Slate, Meagher 19029 239 366 New Edge Networks 3320 234 287 Deutsche Telekom AG 9929 233 304 China Netcom Corp. 13609 232 272 Choice One Communications Inc Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:820 13:1 15:4 16:1 17:3 20:8 24:812 32:83 38:56 40:54 44:3 45:5 55:1 56:1 57:13 61:386 62:481 63:1817 64:1901 65:1938 66:2491 67:286 68:588 69:461 80:481 81:255 82:144 83:23 128:143 129:262 130:94 131:78 132:16 134:181 135:16 136:190 137:105 138:149 139:42 140:147 141:146 142:109 143:49 144:90 145:40 146:301 147:77 148:371 149:89 150:96 151:63 152:215 153:62 154:1 155:125 156:58 157:55 158:146 159:155 160:50 161:55 162:374 163:80 164:325 165:164 166:98 167:207 168:211 169:101 170:294 171:8 172:1 192:5501 193:2614 194:2024 195:1363 196:532 198:3651 199:2987 200:3216 201:7 202:4485 203:5450 204:2984 205:1983 206:2207 207:2597 208:2321 209:2904 210:1304 211:543 212:951 213:1081 214:26 215:26 216:3329 217:888 218:156 219:104 220:195 221:25 222:17 End of report