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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Jan 23 19:08:23 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 24 Jan, 2004 Analysis Summary ---------------- BGP routing table entries examined: 131932 Prefixes after maximum aggregation: 81126 Unique aggregates announced to Internet: 63585 Total ASes present in the Internet Routing Table: 16523 Origin-only ASes present in the Internet Routing Table: 14337 Origin ASes announcing only one prefix: 6611 Transit ASes present in the Internet Routing Table: 2186 Transit-only ASes present in the Internet Routing Table: 70 Average AS path length visible in the Internet Routing Table: 5.1 Max AS path length visible: 19 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: 15 Number of addresses announced to Internet: 1280829028 Equivalent to 76 /8s, 87 /16s and 230 /24s Percentage of available address space announced: 34.6 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 58.2 Total number of prefixes smaller than registry allocations: 58308 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 24460 Total APNIC prefixes after maximum aggregation: 13097 Prefixes being announced from the APNIC address blocks: 22886 Unique aggregates announced from the APNIC address blocks: 12962 APNIC Region origin ASes present in the Internet Routing Table: 1977 APNIC Region origin ASes announcing only one prefix: 588 APNIC Region transit ASes present in the Internet Routing Table: 317 Average APNIC Region AS path length visible: 5.1 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 134717568 Equivalent to 8 /8s, 7 /16s and 160 /24s Percentage of available APNIC address space announced: 72.6 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: 77189 Total ARIN prefixes after maximum aggregation: 47879 Prefixes being announced from the ARIN address blocks: 59760 Unique aggregates announced from the ARIN address blocks: 20804 ARIN Region origin ASes present in the Internet Routing Table: 8883 ARIN Region origin ASes announcing only one prefix: 3133 ARIN Region transit ASes present in the Internet Routing Table: 847 Average ARIN Region AS path length visible: 4.8 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 215262880 Equivalent to 12 /8s, 212 /16s and 166 /24s Percentage of available ARIN address space announced: 71.3 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: 23685 Total RIPE prefixes after maximum aggregation: 17257 Prefixes being announced from the RIPE address blocks: 20522 Unique aggregates announced from the RIPE address blocks: 13612 RIPE Region origin ASes present in the Internet Routing Table: 5135 RIPE Region origin ASes announcing only one prefix: 2759 RIPE Region transit ASes present in the Internet Routing Table: 903 Average RIPE Region AS path length visible: 5.9 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 149666944 Equivalent to 8 /8s, 235 /16s and 188 /24s Percentage of available RIPE address space announced: 68.6 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: 5447 Total LACNIC prefixes after maximum aggregation: 2219 Prefixes being announced from the LACNIC address blocks: 5027 Unique aggregates announced from the LACNIC address blocks: 3140 LACNIC Region origin ASes present in the Internet Routing Table: 368 LACNIC Region origin ASes announcing only one prefix: 105 LACNIC Region transit ASes present in the Internet Routing Table: 71 Average LACNIC Region AS path length visible: 5.4 Max LACNIC Region AS path length visible: 13 Number of LACNIC addresses announced to Internet: 14043648 Equivalent to 0 /8s, 214 /16s and 74 /24s Percentage of available LACNIC address space announced: 41.9 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1145 Total AfriNIC prefixes after maximum aggregation: 674 Prefixes being announced from the AfriNIC address blocks: 736 Unique aggregates announced from the AfriNIC address blocks: 569 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 12 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 1766656 Equivalent to 0 /8s, 26 /16s and 245 /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 904 1101 645 Telstra Pty Ltd 4134 673 2457 116 Data Communications Bureau 4766 408 2904 241 Korea Internet Exchange for " 2907 362 1847 338 SINET Japan 9443 344 69 79 Primus Telecommunications 703 337 372 261 UUNET 17557 319 23 154 Pakistan Telecom 9583 300 44 11 Satyam Infoway Ltd., 17676 295 4348 38 XTAGE CORPORATION 2764 288 289 237 connect.com.au pty ltd 7474 271 305 213 Optus Communications Pty Ltd 4538 249 1811 21 China Education and Research 4755 218 130 58 Videsh Sanchar Nigam Ltd. Aut 9929 218 154 30 China Netcom Corp. 9942 216 69 128 COMindico Australia 9800 214 347 55 CHINA UNICOM 9498 188 30 35 BHARTI BT INTERNET LTD. 17642 152 40 111 RequestDSL BGP AS# for Sydney 17964 151 117 58 Beijing Dian-Xin-Tong Network 7633 149 23 40 Software Technology Parks of ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 701 1400 8662 967 UUNET Technologies, Inc. 7018 1386 7014 961 AT&T 1239 946 3093 662 Sprint 3356 762 10925 607 Level 3 Communications, LLC 209 724 3533 505 Qwest 6197 696 401 235 BellSouth Network Solutions, 4323 690 592 208 Time Warner Communications, I 18566 685 192 9 Covad Communications 20115 602 330 336 Charter Communications 6198 591 381 228 BellSouth Network Solutions, 7843 511 559 121 Adelphia Corp. 852 505 1124 401 Telus Advanced Communications 7066 503 207 271 Virginia Polytechnic Institut 7132 451 7417 309 Southwestern Bell Internet Se 2386 419 544 221 AT&T Data Communications Serv 690 398 58 268 Merit Network 19029 394 169 251 New Edge Networks 4355 392 323 101 EarthLink, Inc. 376 383 359 114 Reseau Interordinateurs Scien 27364 382 28 23 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 690 2074 573 UUNET - Commercial IP service 3301 335 1174 316 TeliaNet Sweden 3320 278 1972 229 Deutsche Telekom AG 8220 273 411 258 COLT Internet - International 680 241 2027 237 DFN-IP service G-WiN 719 235 288 105 LANLINK autonomous system 1257 225 504 191 SWIPnet Swedish IP Network 13083 215 51 8 Mannesmann Datenverarbeitung 3246 187 425 185 Song Networks 786 175 1826 175 The JANET IP Service 8708 171 111 162 Romania Data Systems S.A. 5515 169 762 135 Sonera Solution Autonomous Sy 25186 168 201 109 France Telecom Transpac's Tra 3215 153 791 70 France Telecom Transpac 5400 140 224 129 BT Ignite European Backbone 3303 138 557 138 Swisscom Ltd 12302 125 18 32 MobiFon S.A. 3269 122 1004 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 357 121 66 ImpSat 8151 244 350 126 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 138 51 29 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 110 3 31 Red Universitaria Nacional 15311 78 18 38 Telefonica Empresas 6535 77 5 19 Chilesat Servicios Empresari 4270 71 18 9 Red de Interconexion Universi 11311 68 7 22 Sinectis S.A. 11992 68 25 29 Integrated Systems 7080 66 4 2 Electronica y Comunicaciones 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA 14420 61 4 23 ANDINATEL S.A. 1916 59 247 39 Fundacao de Amparo a Pesquisa 7738 59 218 13 Telecomunicacoes da Bahia S.A 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 32 2 1 ARN Network 16637 26 9 19 Johnnic e-Ventures 9129 25 3 4 UUNET Kenya 5713 24 93 22 Telkom SA Ltd 24835 23 18 6 RAYA Telecom - Egypt 12455 22 4 2 Jambonet Autonomous system 6713 21 38 8 Itissalat Al-MAGHRIB 8524 18 2 4 AUCEGYPT Autonomous System 10798 18 1 12 Standard Bank of South Africa 15706 16 2 3 Sudatel Internet Exchange Aut 12258 15 3 10 Vodacom Internet Company 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 685 676 Covad Communications 4134 673 557 Data Communications Bureau 4323 690 482 Time Warner Communications, I 6197 696 461 BellSouth Network Solutions, 7018 1386 425 AT&T 7843 511 390 Adelphia Corp. 6198 591 363 BellSouth Network Solutions, 27364 382 359 Armstrong Cable Services 22909 332 315 Comcast Cable Corporation 5668 321 305 Century Telephone 22773 332 301 Cox Communications, Inc. Atla 4355 392 291 EarthLink, Inc. 6140 357 291 ImpSat 9583 300 289 Satyam Infoway Ltd., 1239 946 284 Sprint 376 383 269 Reseau Interordinateurs Scien 20115 602 266 Charter Communications 9443 344 265 Primus Telecommunications 1221 904 259 Telstra Pty Ltd 17676 295 257 XTAGE CORPORATION List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA 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 64512 PRIVATE 204.70.1.0/24 3561 Cable & Wireless USA 23861 UNALLOCATED 210.93.46.0/24 3786 DACOM Corporation 23861 UNALLOCATED 210.93.47.0/24 3786 DACOM Corporation 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 192.157.49.0/24 1220 INFONET 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 /15:502 /16:7542 /17:1853 /18:3445 /19:8882 /20:9344 /21:6700 /22:9475 /23:11032 /24:71917 /25:199 /26:294 /27:170 /28:28 /29:7 /30:43 /31:0 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 668 685 Covad Communications 6197 546 696 BellSouth Network Solutions, 7018 505 1386 AT&T 6198 442 591 BellSouth Network Solutions, 701 422 1400 UUNET Technologies, Inc. 702 419 690 UUNET - Commercial IP service 7066 397 503 Virginia Polytechnic Institut 3356 395 762 Level 3 Communications, LLC 20115 382 602 Charter Communications 27364 375 382 Armstrong Cable Services 690 361 398 Merit Network 1239 333 946 Sprint 5668 284 321 Century Telephone 19029 259 394 New Edge Networks 25844 244 244 Skadden, Arps, Slate, Meagher 4766 235 408 Korea Internet Exchange for " 3320 226 278 Deutsche Telekom AG 6386 220 246 bellsouth.net, inc. 6517 218 242 Yipes Communications, Inc. 4355 215 392 EarthLink, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:762 13:1 15:6 16:1 17:3 20:7 24:873 32:83 38:44 40:26 44:2 55:1 56:1 57:13 61:347 62:456 63:1826 64:1830 65:1820 66:2229 67:261 68:605 69:371 80:454 81:200 82:79 128:144 129:262 130:70 131:79 132:17 134:176 135:16 136:128 137:115 138:145 139:40 140:157 141:132 142:105 143:48 144:81 145:39 146:290 147:74 148:290 149:85 150:122 151:61 152:213 153:61 154:1 155:130 156:66 157:55 158:136 159:142 160:46 161:51 162:367 163:68 164:331 165:169 166:104 167:218 168:177 169:96 170:306 171:8 192:5501 193:2534 194:2007 195:1312 196:517 198:3641 199:2833 200:2975 201:7 202:4348 203:5364 204:3025 205:2016 206:2270 207:2586 208:2434 209:2865 210:1030 211:418 212:907 213:997 214:23 215:25 216:3364 217:819 218:115 219:83 220:157 221:18 222:1 End of report
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