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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Apr 9 20:05:42 CEST 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 10 Apr, 2004 Analysis Summary ---------------- BGP routing table entries examined: 136486 Prefixes after maximum aggregation: 82916 Unique aggregates announced to Internet: 66004 Total ASes present in the Internet Routing Table: 17001 Origin-only ASes present in the Internet Routing Table: 14742 Origin ASes announcing only one prefix: 6807 Transit ASes present in the Internet Routing Table: 2259 Transit-only ASes present in the Internet Routing Table: 76 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: 17 Number of addresses announced to Internet: 1276034148 Equivalent to 76 /8s, 14 /16s and 188 /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: 61264 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 25872 Total APNIC prefixes after maximum aggregation: 13604 Prefixes being announced from the APNIC address blocks: 24198 Unique aggregates announced from the APNIC address blocks: 13514 APNIC Region origin ASes present in the Internet Routing Table: 2041 APNIC Region origin ASes announcing only one prefix: 610 APNIC Region transit ASes present in the Internet Routing Table: 323 Average APNIC Region AS path length visible: 4.8 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 140693632 Equivalent to 8 /8s, 98 /16s and 208 /24s Percentage of available APNIC address space announced: 75.8 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: 78868 Total ARIN prefixes after maximum aggregation: 48599 Prefixes being announced from the ARIN address blocks: 60836 Unique aggregates announced from the ARIN address blocks: 21375 ARIN Region origin ASes present in the Internet Routing Table: 9083 ARIN Region origin ASes announcing only one prefix: 3214 ARIN Region transit ASes present in the Internet Routing Table: 897 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 221573920 Equivalent to 13 /8s, 52 /16s and 243 /24s Percentage of available ARIN address space announced: 73.4 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: 24824 Total RIPE prefixes after maximum aggregation: 17830 Prefixes being announced from the RIPE address blocks: 21634 Unique aggregates announced from the RIPE address blocks: 14347 RIPE Region origin ASes present in the Internet Routing Table: 5339 RIPE Region origin ASes announcing only one prefix: 2860 RIPE Region transit ASes present in the Internet Routing Table: 925 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 31 Number of RIPE addresses announced to Internet: 158278656 Equivalent to 9 /8s, 111 /16s and 36 /24s Percentage of available RIPE address space announced: 55.5 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: 5777 Total LACNIC prefixes after maximum aggregation: 2199 Prefixes being announced from the LACNIC address blocks: 5450 Unique aggregates announced from the LACNIC address blocks: 3373 LACNIC Region origin ASes present in the Internet Routing Table: 369 LACNIC Region origin ASes announcing only one prefix: 99 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: 14472960 Equivalent to 0 /8s, 220 /16s and 215 /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: 1144 Total AfriNIC prefixes after maximum aggregation: 684 Prefixes being announced from the AfriNIC address blocks: 749 Unique aggregates announced from the AfriNIC address blocks: 559 AfriNIC Region origin ASes present in the Internet Routing Table: 92 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 11 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 1839616 Equivalent to 0 /8s, 28 /16s and 18 /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 865 1092 630 Telstra Pty Ltd 4134 728 3055 120 Data Communications Bureau 4766 462 2916 251 Korea Internet Exchange for " 9583 441 39 100 Satyam Infoway Ltd., 2907 358 1862 334 SINET Japan 4755 357 129 52 Videsh Sanchar Nigam Ltd. Aut 9443 354 69 79 Primus Telecommunications 703 341 374 263 UUNET 9929 338 155 31 China Netcom Corp. 17557 319 22 163 Pakistan Telecom 17676 308 4556 42 XTAGE CORPORATION 2764 294 273 240 connect.com.au pty ltd 7474 272 300 216 Optus Communications Pty Ltd 9942 224 71 127 COMindico Australia 9800 217 348 58 CHINA UNICOM 4780 212 193 26 Digital United Inc. 9498 193 31 44 BHARTI BT INTERNET LTD. 4837 174 1571 102 chinanet IDC center beijing n 9304 168 159 23 Hutchison Telecom (HK) 7633 160 23 43 Software Technology Parks of ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1435 6981 999 AT&T 701 1322 8577 949 UUNET Technologies, Inc. 1239 940 3036 638 Sprint 3356 889 10944 686 Level 3 Communications, LLC 209 747 3488 513 Qwest 4323 716 559 199 Time Warner Communications, I 18566 697 192 8 Covad Communications 6197 688 458 270 BellSouth Network Solutions, 20115 594 349 310 Charter Communications 6198 558 355 203 BellSouth Network Solutions, 7843 532 616 107 Adelphia Corp. 852 512 1127 403 Telus Advanced Communications 7066 501 208 273 Virginia Polytechnic Institut 7132 461 7847 332 Southwestern Bell Internet Se 2386 430 575 234 AT&T Data Communications Serv 27364 404 29 23 Armstrong Cable Services 4355 396 323 103 EarthLink, Inc. 22909 383 841 25 Comcast Cable Corporation 690 380 56 259 Merit Network 376 377 343 111 Reseau Interordinateurs Scien RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 667 2039 558 UUNET - Commercial IP service 3320 293 2477 235 Deutsche Telekom AG 3301 271 984 262 TeliaNet Sweden 8220 264 412 252 COLT Internet - International 680 245 2027 240 DFN-IP service G-WiN 1257 233 510 195 SWIPnet Swedish IP Network 719 222 288 103 LANLINK autonomous system 13083 216 51 8 Mannesmann Datenverarbeitung 3246 195 451 193 Song Networks 5515 193 762 139 Sonera Solution Autonomous Sy 786 175 1826 175 The JANET IP Service 8708 173 111 162 Romania Data Systems S.A. 3215 166 819 72 France Telecom Transpac 25186 163 187 105 France Telecom Transpac's Tra 5400 155 225 140 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 117 1278 106 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 379 122 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 141 53 26 Telecom Argentina Stet-France 6503 138 220 93 AVANTEL, S.A. 6505 132 90 92 Global One Communicaoes Ltda 6147 131 78 19 Telefonica Del Peru 11556 88 73 25 Cable-Wireless Panama 11992 87 9 30 Integrated Systems 6535 79 5 19 Chilesat Servicios Empresari 15311 75 18 38 Telefonica Empresas 14420 74 5 30 ANDINATEL S.A. 4270 69 18 9 Red de Interconexion Universi 11311 69 7 16 Sinectis S.A. 14259 69 4 5 GTD Internet S.A. 14535 69 6 5 Techtel S.A. 5639 64 7 13 Telecommunications Services o 7080 64 4 1 Electronica y Comunicaciones 10292 63 6 25 TELECOMMUNICATIONS OF JAMAICA AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 254 632 219 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 9129 32 3 4 UUNET Kenya 16637 25 9 18 Johnnic e-Ventures 5713 24 93 22 Telkom SA Ltd 12455 24 4 2 Jambonet Autonomous system 8524 23 2 4 AUCEGYPT Autonomous System 24835 23 18 6 RAYA Telecom - Egypt 6713 22 38 9 Itissalat Al-MAGHRIB 14988 22 16 1 Botswana Telecommunications C 3208 19 2 1 ARN Network 10798 18 1 12 Standard Bank of South Africa 15706 16 2 3 Sudatel Internet Exchange Aut 12258 15 3 10 Vodacom Internet Company 15808 14 1 6 Communication Solutions Ltd i 8346 13 6 12 SONATEL-AS Autonomous System 17148 13 1 7 First National Bank Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 697 689 Covad Communications 4134 728 608 Data Communications Bureau 4323 716 517 Time Warner Communications, I 7843 532 425 Adelphia Corp. 6197 688 418 BellSouth Network Solutions, 27364 404 381 Armstrong Cable Services 701 1322 373 UUNET Technologies, Inc. 22909 383 358 Comcast Cable Corporation 6198 558 355 BellSouth Network Solutions, 5668 362 347 Century Telephone 9583 441 341 Satyam Infoway Ltd., 22773 356 324 Cox Communications, Inc. Atla 6140 379 310 ImpSat 9929 338 307 China Netcom Corp. 4755 357 305 Videsh Sanchar Nigam Ltd. Aut 1239 940 302 Sprint 4355 396 293 EarthLink, Inc. 6347 371 287 SAVVIS Communications Corpora 20115 594 284 Charter Communications 9443 354 275 Primus Telecommunications 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 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 /14:295 /15:513 /16:7660 /17:1964 /18:3538 /19:9269 /20:9657 /21:6968 /22:9896 /23:11411 /24:74416 /25:193 /26:259 /27:156 /28:30 /29:4 /30:39 /31:0 /32:11 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 680 697 Covad Communications 7018 529 1435 AT&T 6197 528 688 BellSouth Network Solutions, 3356 489 889 Level 3 Communications, LLC 6198 405 558 BellSouth Network Solutions, 702 404 667 UUNET - Commercial IP service 27364 397 404 Armstrong Cable Services 7066 395 501 Virginia Polytechnic Institut 701 366 1322 UUNET Technologies, Inc. 1239 355 940 Sprint 20115 345 594 Charter Communications 690 343 380 Merit Network 5668 317 362 Century Telephone 4766 284 462 Korea Internet Exchange for " 9583 283 441 Satyam Infoway Ltd., 9929 267 338 China Netcom Corp. 14824 247 272 NewSouth Communications Corp. 25844 244 244 Skadden, Arps, Slate, Meagher 19029 243 370 New Edge Networks 3320 240 293 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:826 13:1 15:4 16:1 17:3 20:8 24:812 32:82 38:55 40:54 44:3 45:16 55:1 56:4 57:13 61:391 62:468 63:1814 64:1899 65:1939 66:2513 67:290 68:589 69:470 80:483 81:242 82:127 83:26 128:142 129:262 130:98 131:79 132:17 134:181 135:17 136:193 137:105 138:149 139:41 140:148 141:144 142:109 143:49 144:90 145:40 146:300 147:78 148:366 149:89 150:92 151:63 152:210 153:62 154:1 155:128 156:58 157:55 158:146 159:157 160:50 161:53 162:375 163:76 164:327 165:162 166:98 167:211 168:214 169:100 170:291 171:8 192:5513 193:2639 194:2023 195:1334 196:531 198:3651 199:2985 200:3264 201:8 202:4508 203:5471 204:2986 205:1966 206:2220 207:2609 208:2319 209:2920 210:1364 211:523 212:930 213:1086 214:26 215:26 216:3346 217:894 218:158 219:100 220:202 221:26 222:17 End of report
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