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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Jan 30 19:08:49 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 31 Jan, 2004 Analysis Summary ---------------- BGP routing table entries examined: 132205 Prefixes after maximum aggregation: 81304 Unique aggregates announced to Internet: 63879 Total ASes present in the Internet Routing Table: 16562 Origin-only ASes present in the Internet Routing Table: 14378 Origin ASes announcing only one prefix: 6648 Transit ASes present in the Internet Routing Table: 2184 Transit-only ASes present in the Internet Routing Table: 68 Average AS path length visible in the Internet Routing Table: 5.0 Max AS path length visible: 19 Illegal AS announcements present in the Routing Table: 7 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1282518628 Equivalent to 76 /8s, 113 /16s and 174 /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: 58396 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 24505 Total APNIC prefixes after maximum aggregation: 13153 Prefixes being announced from the APNIC address blocks: 22916 Unique aggregates announced from the APNIC address blocks: 13079 APNIC Region origin ASes present in the Internet Routing Table: 1990 APNIC Region origin ASes announcing only one prefix: 597 APNIC Region transit ASes present in the Internet Routing Table: 318 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 135282560 Equivalent to 8 /8s, 16 /16s and 63 /24s Percentage of available APNIC address space announced: 72.9 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: 77464 Total ARIN prefixes after maximum aggregation: 47983 Prefixes being announced from the ARIN address blocks: 59964 Unique aggregates announced from the ARIN address blocks: 20865 ARIN Region origin ASes present in the Internet Routing Table: 8901 ARIN Region origin ASes announcing only one prefix: 3150 ARIN Region transit ASes present in the Internet Routing Table: 852 Average ARIN Region AS path length visible: 4.7 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 215792032 Equivalent to 12 /8s, 220 /16s and 185 /24s Percentage of available ARIN address space announced: 71.5 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: 23711 Total RIPE prefixes after maximum aggregation: 17289 Prefixes being announced from the RIPE address blocks: 20547 Unique aggregates announced from the RIPE address blocks: 13668 RIPE Region origin ASes present in the Internet Routing Table: 5145 RIPE Region origin ASes announcing only one prefix: 2772 RIPE Region transit ASes present in the Internet Routing Table: 897 Average RIPE Region AS path length visible: 5.7 Max RIPE Region AS path length visible: 19 Number of RIPE addresses announced to Internet: 150332288 Equivalent to 8 /8s, 245 /16s and 227 /24s Percentage of available RIPE address space announced: 68.9 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: 5367 Total LACNIC prefixes after maximum aggregation: 2203 Prefixes being announced from the LACNIC address blocks: 5001 Unique aggregates announced from the LACNIC address blocks: 3152 LACNIC Region origin ASes present in the Internet Routing Table: 368 LACNIC Region origin ASes announcing only one prefix: 103 LACNIC Region transit ASes present in the Internet Routing Table: 71 Average LACNIC Region AS path length visible: 5.3 Max LACNIC Region AS path length visible: 13 Number of LACNIC addresses announced to Internet: 14023936 Equivalent to 0 /8s, 213 /16s and 253 /24s Percentage of available LACNIC address space announced: 41.8 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1153 Total AfriNIC prefixes after maximum aggregation: 676 Prefixes being announced from the AfriNIC address blocks: 735 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: 10 Average AfriNIC Region AS path length visible: 5.0 Max AfriNIC Region AS path length visible: 15 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 937 1120 663 Telstra Pty Ltd 4134 668 2489 117 Data Communications Bureau 4766 416 2905 247 Korea Internet Exchange for " 2907 361 1831 337 SINET Japan 9443 345 69 80 Primus Telecommunications 4755 342 129 61 Videsh Sanchar Nigam Ltd. Aut 703 341 372 264 UUNET 17557 319 23 157 Pakistan Telecom 9583 307 44 11 Satyam Infoway Ltd., 17676 295 4348 38 XTAGE CORPORATION 2764 282 288 236 connect.com.au pty ltd 7474 275 305 215 Optus Communications Pty Ltd 9942 225 69 128 COMindico Australia 9929 218 154 30 China Netcom Corp. 9800 214 347 55 CHINA UNICOM 9498 182 30 34 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 4739 148 60 135 Commerical Internet eXchange ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1399 7022 976 AT&T 701 1376 8662 969 UUNET Technologies, Inc. 1239 948 3109 662 Sprint 3356 777 10961 619 Level 3 Communications, LLC 209 715 3532 506 Qwest 18566 686 192 9 Covad Communications 4323 682 528 200 Time Warner Communications, I 6197 676 399 235 BellSouth Network Solutions, 20115 612 334 334 Charter Communications 6198 590 389 225 BellSouth Network Solutions, 7843 513 570 116 Adelphia Corp. 7066 503 207 271 Virginia Polytechnic Institut 852 502 1124 400 Telus Advanced Communications 7132 452 7417 311 Southwestern Bell Internet Se 2386 418 528 221 AT&T Data Communications Serv 690 398 58 268 Merit Network 4355 395 323 101 EarthLink, Inc. 19029 392 169 252 New Edge Networks 376 382 359 114 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 702 687 2058 572 UUNET - Commercial IP service 3301 336 1174 315 TeliaNet Sweden 3320 284 1972 231 Deutsche Telekom AG 8220 262 410 248 COLT Internet - International 680 241 2027 237 DFN-IP service G-WiN 719 233 288 105 LANLINK autonomous system 1257 222 505 191 SWIPnet Swedish IP Network 13083 216 51 8 Mannesmann Datenverarbeitung 3246 187 421 185 Song Networks 786 175 1826 175 The JANET IP Service 8708 170 111 162 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 142 223 131 BT Ignite European Backbone 3303 136 556 136 Swisscom Ltd 12302 125 18 32 MobiFon S.A. 3269 123 1005 65 TELECOM ITALIA 2856 118 1294 108 BTnet UK Regional network 3352 103 892 30 Ibernet, Internet Access Netw LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 358 121 66 ImpSat 8151 244 352 123 UniNet S.A. de C.V. 11172 204 77 44 Servicios Alestra S.A de C.V 16814 154 10 5 NSS, S.A. 6503 140 220 94 AVANTEL, S.A. 7303 137 51 30 Telecom Argentina Stet-France 6505 132 90 92 Global One Communicaoes Ltda 6147 124 78 20 Telefonica Del Peru 6535 77 5 19 Chilesat Servicios Empresari 15311 77 18 37 Telefonica Empresas 4270 71 18 9 Red de Interconexion Universi 11992 68 25 29 Integrated Systems 7080 66 4 2 Electronica y Comunicaciones 11311 66 7 22 Sinectis S.A. 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 10292 61 6 28 TELECOMMUNICATIONS OF JAMAICA 14420 60 4 26 ANDINATEL S.A. 1916 59 247 39 Fundacao de Amparo a Pesquisa 7738 59 218 13 Telecomunicacoes da Bahia S.A 4926 57 4 48 Telintar 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 104 8 3 Internet Egypt Network 2018 94 297 92 Tertiary Education Network 2905 90 272 80 The Internetworking Company o 2561 50 6 2 Egyptian Universities Network 11845 36 9 11 Data Pro Business Online 3208 33 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 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 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 686 677 Covad Communications 4134 668 551 Data Communications Bureau 4323 682 482 Time Warner Communications, I 6197 676 441 BellSouth Network Solutions, 701 1376 407 UUNET Technologies, Inc. 7843 513 397 Adelphia Corp. 6198 590 365 BellSouth Network Solutions, 27364 382 359 Armstrong Cable Services 22909 337 319 Comcast Cable Corporation 5668 322 306 Century Telephone 22773 337 303 Cox Communications, Inc. Atla 9583 307 296 Satyam Infoway Ltd., 4355 395 294 EarthLink, Inc. 6140 358 292 ImpSat 1239 948 286 Sprint 4755 342 281 Videsh Sanchar Nigam Ltd. Aut 20115 612 278 Charter Communications 1221 937 274 Telstra Pty Ltd 376 382 268 Reseau Interordinateurs Scien 9443 345 265 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65412 PRIVATE 64.70.42.0/24 3561 Cable & Wireless USA 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 192.172.0.0/19 568 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 /12:58 /13:105 /14:281 /15:502 /16:7551 /17:1874 /18:3458 /19:8902 /20:9235 /21:6698 /22:9509 /23:11062 /24:72274 /25:164 /26:258 /27:150 /28:27 /29:5 /30:38 /31:0 /32:10 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 669 686 Covad Communications 6197 525 676 BellSouth Network Solutions, 7018 507 1399 AT&T 6198 435 590 BellSouth Network Solutions, 702 417 687 UUNET - Commercial IP service 3356 397 777 Level 3 Communications, LLC 7066 397 503 Virginia Polytechnic Institut 701 396 1376 UUNET Technologies, Inc. 20115 388 612 Charter Communications 27364 375 382 Armstrong Cable Services 690 361 398 Merit Network 1239 331 948 Sprint 5668 285 322 Century Telephone 19029 257 392 New Edge Networks 25844 244 244 Skadden, Arps, Slate, Meagher 4766 242 416 Korea Internet Exchange for " 3320 232 284 Deutsche Telekom AG 6517 220 244 Yipes Communications, Inc. 6386 219 245 bellsouth.net, inc. 4355 215 395 EarthLink, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:767 13:1 15:6 16:1 17:3 20:7 24:839 32:82 38:44 40:26 44:2 55:1 56:1 57:13 61:356 62:456 63:1827 64:1821 65:1844 66:2277 67:270 68:590 69:371 80:460 81:222 82:74 128:143 129:264 130:73 131:78 132:16 134:178 135:16 136:128 137:116 138:147 139:40 140:157 141:135 142:108 143:49 144:81 145:39 146:293 147:74 148:300 149:85 150:122 151:61 152:214 153:60 154:1 155:131 156:66 157:55 158:136 159:141 160:46 161:52 162:368 163:72 164:331 165:171 166:106 167:220 168:177 169:96 170:303 171:8 192:5523 193:2534 194:2002 195:1314 196:517 198:3641 199:2884 200:2972 201:7 202:4417 203:5446 204:3022 205:2009 206:2276 207:2590 208:2431 209:2897 210:1027 211:424 212:878 213:1002 214:23 215:25 216:3382 217:817 218:118 219:90 220:166 221:18 222:1 End of report
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