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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Jan 16 19:08:39 CET 2004
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 at lists.apnic.net If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 17 Jan, 2004 Analysis Summary ---------------- BGP routing table entries examined: 131781 Prefixes after maximum aggregation: 81083 Unique aggregates announced to Internet: 63611 Total ASes present in the Internet Routing Table: 16480 Origin-only ASes present in the Internet Routing Table: 14305 Origin ASes announcing only one prefix: 6584 Transit ASes present in the Internet Routing Table: 2175 Transit-only ASes present in the Internet Routing Table: 75 Average AS path length visible in the Internet Routing Table: 4.9 Max AS path length visible: 30 Illegal AS announcements present in the Routing Table: 8 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1279605604 Equivalent to 76 /8s, 69 /16s and 59 /24s Percentage of available address space announced: 34.5 Percentage of allocated address space announced: 59.3 Percentage of available address space allocated: 58.2 Total number of prefixes smaller than registry allocations: 58081 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 24402 Total APNIC prefixes after maximum aggregation: 13077 Prefixes being announced from the APNIC address blocks: 22884 Unique aggregates announced from the APNIC address blocks: 12923 APNIC Region origin ASes present in the Internet Routing Table: 1971 APNIC Region origin ASes announcing only one prefix: 585 APNIC Region transit ASes present in the Internet Routing Table: 313 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 134334848 Equivalent to 8 /8s, 1 /16s and 201 /24s Percentage of available APNIC address space announced: 72.4 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: 77254 Total ARIN prefixes after maximum aggregation: 47953 Prefixes being announced from the ARIN address blocks: 59779 Unique aggregates announced from the ARIN address blocks: 20909 ARIN Region origin ASes present in the Internet Routing Table: 8862 ARIN Region origin ASes announcing only one prefix: 3115 ARIN Region transit ASes present in the Internet Routing Table: 848 Average ARIN Region AS path length visible: 4.6 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 214948768 Equivalent to 12 /8s, 207 /16s and 219 /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 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: 23553 Total RIPE prefixes after maximum aggregation: 17174 Prefixes being announced from the RIPE address blocks: 20399 Unique aggregates announced from the RIPE address blocks: 13543 RIPE Region origin ASes present in the Internet Routing Table: 5116 RIPE Region origin ASes announcing only one prefix: 2750 RIPE Region transit ASes present in the Internet Routing Table: 890 Average RIPE Region AS path length visible: 5.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 149179264 Equivalent to 8 /8s, 228 /16s and 75 /24s Percentage of available RIPE address space announced: 68.4 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, 80/6, 84/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 5416 Total LACNIC prefixes after maximum aggregation: 2203 Prefixes being announced from the LACNIC address blocks: 5010 Unique aggregates announced from the LACNIC address blocks: 3136 LACNIC Region origin ASes present in the Internet Routing Table: 366 LACNIC Region origin ASes announcing only one prefix: 107 LACNIC Region transit ASes present in the Internet Routing Table: 72 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 12 Number of LACNIC addresses announced to Internet: 13958656 Equivalent to 0 /8s, 212 /16s and 254 /24s Percentage of available LACNIC address space announced: 41.6 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1150 Total AfriNIC prefixes after maximum aggregation: 676 Prefixes being announced from the AfriNIC address blocks: 736 Unique aggregates announced from the AfriNIC address blocks: 568 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 27 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 1758464 Equivalent to 0 /8s, 26 /16s and 213 /24s Percentage of available AfriNIC address space announced: 10.5 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 902 1097 650 Telstra Pty Ltd 4134 701 2413 110 Data Communications Bureau 4766 406 2904 239 Korea Internet Exchange for " 2907 362 1847 339 SINET Japan 9443 344 69 79 Primus Telecommunications 703 338 372 262 UUNET 17557 312 22 152 Pakistan Telecom 9583 295 44 11 Satyam Infoway Ltd., 17676 293 4316 39 XTAGE CORPORATION 2764 287 289 236 connect.com.au pty ltd 7474 272 305 214 Optus Communications Pty Ltd 4538 249 1811 21 China Education and Research 4755 223 130 58 Videsh Sanchar Nigam Ltd. Aut 9929 215 153 28 China Netcom Corp. 9800 214 347 55 CHINA UNICOM 9942 214 69 127 COMindico Australia 9498 184 46 35 BHARTI BT INTERNET LTD. 17642 153 40 112 RequestDSL BGP AS# for Sydney 17964 153 117 58 Beijing Dian-Xin-Tong Network 7633 147 23 40 Software Technology Parks of ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1404 8678 971 UUNET Technologies, Inc. 7018 1396 7032 972 AT&T 1239 944 3090 660 Sprint 6197 775 484 252 BellSouth Network Solutions, 3356 764 10926 609 Level 3 Communications, LLC 209 719 3530 505 Qwest 18566 681 176 8 Covad Communications 4323 677 589 205 Time Warner Communications, I 20115 604 330 340 Charter Communications 6198 547 346 197 BellSouth Network Solutions, 7843 510 551 122 Adelphia Corp. 852 505 1124 401 Telus Advanced Communications 7066 503 207 271 Virginia Polytechnic Institut 7132 453 7402 311 Southwestern Bell Internet Se 2386 417 542 218 AT&T Data Communications Serv 19029 402 171 258 New Edge Networks 690 398 58 268 Merit Network 4355 390 323 101 EarthLink, Inc. 376 383 359 114 Reseau Interordinateurs Scien 27364 379 28 24 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 690 2076 573 UUNET - Commercial IP service 3301 335 1175 316 TeliaNet Sweden 3320 282 1972 232 Deutsche Telekom AG 8220 268 410 253 COLT Internet - International 1257 243 504 189 SWIPnet Swedish IP Network 680 241 2027 237 DFN-IP service G-WiN 719 234 288 104 LANLINK autonomous system 13083 215 51 8 Mannesmann Datenverarbeitung 3246 189 425 187 Song Networks 786 175 1826 175 The JANET IP Service 5515 172 762 134 Sonera Solution Autonomous Sy 25186 168 201 109 France Telecom Transpac's Tra 8708 165 111 157 Romania Data Systems S.A. 3215 150 786 68 France Telecom Transpac 3303 138 557 138 Swisscom Ltd 5400 137 224 127 BT Ignite European Backbone 12302 131 18 35 MobiFon S.A. 3269 120 972 64 TELECOM ITALIA 2856 119 1294 109 BTnet UK Regional network 6746 105 17 94 Dynamic Network Technologies, LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 352 121 71 ImpSat 8151 238 336 123 UniNet S.A. de C.V. 11172 198 77 44 Servicios Alestra S.A de C.V 16814 155 10 5 NSS, S.A. 7303 142 53 23 Telecom Argentina Stet-France 6505 133 90 93 Global One Communicaoes Ltda 6503 128 220 93 AVANTEL, S.A. 6147 124 78 20 Telefonica Del Peru 11340 112 3 33 Red Universitaria Nacional 15311 78 18 38 Telefonica Empresas 6535 77 5 19 Chilesat Servicios Empresari 4270 70 18 9 Red de Interconexion Universi 11311 68 7 22 Sinectis S.A. 7080 66 4 2 Electronica y Comunicaciones 11992 66 24 30 Integrated Systems 14420 62 4 23 ANDINATEL S.A. 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 1916 59 247 39 Fundacao de Amparo a Pesquisa 7738 59 218 13 Telecomunicacoes da Bahia S.A 10292 59 5 26 TELECOMMUNICATIONS OF JAMAICA AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 249 632 218 The Internet Solution 5536 103 8 3 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 90 272 80 The Internetworking Company o 2561 58 6 3 Egyptian Universities Network 11845 36 9 11 Data Pro Business Online 3208 33 2 1 ARN Network 9129 26 3 4 UUNET Kenya 16637 26 9 19 Johnnic e-Ventures 5713 24 93 22 Telkom SA Ltd 24835 23 18 6 RAYA Telecom - Egypt 6713 22 38 9 Itissalat Al-MAGHRIB 12455 22 4 2 Jambonet Autonomous system 8524 18 2 4 AUCEGYPT Autonomous System 10798 18 1 12 Standard Bank of South Africa 12258 15 3 10 Vodacom Internet Company 15706 15 2 5 Sudatel Internet Exchange Aut 17148 14 1 8 First National Bank 2609 12 10 3 Tunisia BackBone AS 8346 12 6 12 SONATEL-AS Autonomous System Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 681 673 Covad Communications 4134 701 591 Data Communications Bureau 6197 775 523 BellSouth Network Solutions, 4323 677 472 Time Warner Communications, I 7018 1396 424 AT&T 7843 510 388 Adelphia Corp. 27364 379 355 Armstrong Cable Services 6198 547 350 BellSouth Network Solutions, 22909 332 315 Comcast Cable Corporation 5668 321 305 Century Telephone 22773 331 301 Cox Communications, Inc. Atla 4355 390 289 EarthLink, Inc. 1239 944 284 Sprint 9583 295 284 Satyam Infoway Ltd., 6140 352 281 ImpSat 376 383 269 Reseau Interordinateurs Scien 9443 344 265 Primus Telecommunications 20115 604 264 Charter Communications 17676 293 254 XTAGE CORPORATION 6347 330 253 SAVVIS Communications Corpora List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 64512 PRIVATE 131.95.1.240/28 16430 University of Southe 64198 RESERVED 192.107.195.0/24 22767 NASA Earth Science D 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 64198 RESERVED 198.10.49.0/24 22767 NASA Earth Science D 65531 PRIVATE 203.115.82.0/23 23682 Broadband Pacenet In 64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA 23861 UNALLOCATED 210.93.46.0/24 4766 Korea Internet Excha 23861 UNALLOCATED 210.93.47.0/24 4766 Korea Internet Excha 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 192.84.205.0/24 719 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 /8:19 /9:4 /10:6 /11:15 /12:57 /13:105 /14:282 /15:497 /16:7550 /17:1836 /18:3441 /19:8896 /20:9344 /21:6708 /22:9442 /23:11011 /24:71823 /25:192 /26:296 /27:170 /28:28 /29:5 /30:43 /31:0 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 665 681 Covad Communications 6197 620 775 BellSouth Network Solutions, 7018 516 1396 AT&T 701 422 1404 UUNET Technologies, Inc. 702 421 690 UUNET - Commercial IP service 6198 400 547 BellSouth Network Solutions, 7066 397 503 Virginia Polytechnic Institut 3356 394 764 Level 3 Communications, LLC 20115 384 604 Charter Communications 27364 373 379 Armstrong Cable Services 690 361 398 Merit Network 1239 331 944 Sprint 5668 284 321 Century Telephone 19029 262 402 New Edge Networks 25844 244 244 Skadden, Arps, Slate, Meagher 4766 233 406 Korea Internet Exchange for " 3320 229 282 Deutsche Telekom AG 6386 220 246 bellsouth.net, inc. 6517 219 243 Yipes Communications, Inc. 4355 215 390 EarthLink, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:758 13:1 15:6 16:1 17:3 20:7 24:879 32:81 38:44 40:26 44:2 55:1 56:1 57:13 61:348 62:450 63:1825 64:1803 65:1818 66:2173 67:257 68:636 69:366 80:455 81:192 82:63 128:144 129:261 130:69 131:79 132:17 134:175 135:16 136:128 137:115 138:126 139:39 140:158 141:132 142:102 143:48 144:88 145:39 146:288 147:74 148:319 149:85 150:119 151:61 152:212 153:61 154:1 155:129 156:62 157:54 158:134 159:143 160:46 161:51 162:369 163:69 164:332 165:167 166:104 167:216 168:175 169:96 170:304 171:8 192:5540 193:2525 194:2001 195:1294 196:517 198:3632 199:2828 200:2961 201:7 202:4347 203:5376 204:3032 205:2023 206:2276 207:2594 208:2433 209:2895 210:1021 211:419 212:883 213:995 214:23 215:25 216:3373 217:799 218:118 219:83 220:156 221:19 222:1 End of report
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