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Weekly Routing Table Report
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Routing Table Analysis
cscora at thyme.apnic.net
Fri Apr 23 20:06:13 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 24 Apr, 2004 Analysis Summary ---------------- BGP routing table entries examined: 136951 Prefixes after maximum aggregation: 83183 Unique aggregates announced to Internet: 66397 Total ASes present in the Internet Routing Table: 17090 Origin-only ASes present in the Internet Routing Table: 14819 Origin ASes announcing only one prefix: 6844 Transit ASes present in the Internet Routing Table: 2271 Transit-only ASes present in the Internet Routing Table: 80 Average AS path length visible in the Internet Routing Table: 4.7 Max AS path length visible: 26 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: 1282660100 Equivalent to 76 /8s, 115 /16s and 215 /24s Percentage of available address space announced: 34.6 Percentage of allocated address space announced: 57.6 Percentage of available address space allocated: 60.0 Total number of prefixes smaller than registry allocations: 61497 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 26072 Total APNIC prefixes after maximum aggregation: 13676 Prefixes being announced from the APNIC address blocks: 24379 Unique aggregates announced from the APNIC address blocks: 13664 APNIC Region origin ASes present in the Internet Routing Table: 2041 APNIC Region origin ASes announcing only one prefix: 609 APNIC Region transit ASes present in the Internet Routing Table: 329 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 144640384 Equivalent to 8 /8s, 159 /16s and 9 /24s Percentage of available APNIC address space announced: 77.9 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: 78837 Total ARIN prefixes after maximum aggregation: 48684 Prefixes being announced from the ARIN address blocks: 60793 Unique aggregates announced from the ARIN address blocks: 21470 ARIN Region origin ASes present in the Internet Routing Table: 9122 ARIN Region origin ASes announcing only one prefix: 3237 ARIN Region transit ASes present in the Internet Routing Table: 891 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 222220576 Equivalent to 13 /8s, 62 /16s and 209 /24s Percentage of available ARIN address space announced: 73.6 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: 25107 Total RIPE prefixes after maximum aggregation: 17942 Prefixes being announced from the RIPE address blocks: 21919 Unique aggregates announced from the RIPE address blocks: 14431 RIPE Region origin ASes present in the Internet Routing Table: 5382 RIPE Region origin ASes announcing only one prefix: 2872 RIPE Region transit ASes present in the Internet Routing Table: 929 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 159835648 Equivalent to 9 /8s, 134 /16s and 230 /24s Percentage of available RIPE address space announced: 56.0 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: 5787 Total LACNIC prefixes after maximum aggregation: 2207 Prefixes being announced from the LACNIC address blocks: 5433 Unique aggregates announced from the LACNIC address blocks: 3380 LACNIC Region origin ASes present in the Internet Routing Table: 374 LACNIC Region origin ASes announcing only one prefix: 104 LACNIC Region transit ASes present in the Internet Routing Table: 73 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 14628096 Equivalent to 0 /8s, 223 /16s and 53 /24s Percentage of available LACNIC address space announced: 43.6 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1147 Total AfriNIC prefixes after maximum aggregation: 674 Prefixes being announced from the AfriNIC address blocks: 756 Unique aggregates announced from the AfriNIC address blocks: 562 AfriNIC Region origin ASes present in the Internet Routing Table: 90 AfriNIC Region origin ASes announcing only one prefix: 22 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: 16 Number of AfriNIC addresses announced to Internet: 1840384 Equivalent to 0 /8s, 28 /16s and 21 /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 858 1091 626 Telstra Pty Ltd 4134 725 3171 120 Data Communications Bureau 4766 474 2916 253 Korea Internet Exchange for " 9583 438 39 95 Satyam Infoway Ltd., 4755 360 129 53 Videsh Sanchar Nigam Ltd. Aut 2907 355 1846 331 SINET Japan 9443 354 69 78 Primus Telecommunications 9929 348 155 31 China Netcom Corp. 703 335 373 258 UUNET 17676 329 4892 54 XTAGE CORPORATION 17557 323 23 162 Pakistan Telecom 2764 294 273 240 connect.com.au pty ltd 7474 273 300 214 Optus Communications Pty Ltd 9942 222 70 125 COMindico Australia 9800 218 348 58 CHINA UNICOM 4780 212 193 26 Digital United Inc. 9498 205 31 45 BHARTI BT INTERNET LTD. 4837 182 1683 105 chinanet IDC center beijing n 9304 169 159 24 Hutchison Telecom (HK) 7633 159 23 43 Software Technology Parks of ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1426 6964 997 AT&T 701 1315 8522 942 UUNET Technologies, Inc. 1239 938 3033 636 Sprint 3356 895 10968 690 Level 3 Communications, LLC 209 756 3479 518 Qwest 4323 721 559 200 Time Warner Communications, I 18566 699 192 8 Covad Communications 6197 695 507 256 BellSouth Network Solutions, 6198 563 366 207 BellSouth Network Solutions, 20115 541 342 283 Charter Communications 852 513 1127 404 Telus Advanced Communications 7066 502 208 274 Virginia Polytechnic Institut 7843 497 624 112 Adelphia Corp. 7132 450 7847 332 Southwestern Bell Internet Se 2386 432 579 235 AT&T Data Communications Serv 27364 405 29 23 Armstrong Cable Services 4355 393 323 103 EarthLink, Inc. 376 380 343 112 Reseau Interordinateurs Scien 22909 380 835 40 Comcast Cable Corporation 6347 377 386 85 SAVVIS Communications Corpora RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 662 2039 553 UUNET - Commercial IP service 3320 296 2477 236 Deutsche Telekom AG 3301 268 984 258 TeliaNet Sweden 8220 268 412 255 COLT Internet - International 680 244 2025 239 DFN-IP service G-WiN 1257 233 510 195 SWIPnet Swedish IP Network 13083 216 51 8 Mannesmann Datenverarbeitung 5515 201 779 143 Sonera Solution Autonomous Sy 719 200 288 103 LANLINK autonomous system 3246 198 451 195 Song Networks 25186 176 188 117 France Telecom Transpac's Tra 786 175 1826 175 The JANET IP Service 8708 175 111 164 Romania Data Systems S.A. 3215 167 815 71 France Telecom Transpac 5400 159 241 140 BT Ignite European Backbone 6746 137 28 114 Dynamic Network Technologies, 3303 135 610 135 Swisscom Ltd 3269 134 1101 65 TELECOM ITALIA 12302 121 17 28 MobiFon S.A. 1273 112 166 89 Cable & Wireless Deutschland LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6140 379 122 74 ImpSat 8151 265 357 130 UniNet S.A. de C.V. 11172 208 75 43 Servicios Alestra S.A de C.V 16814 163 11 6 NSS, S.A. 6147 149 78 20 Telefonica Del Peru 7303 140 53 27 Telecom Argentina Stet-France 6503 136 220 92 AVANTEL, S.A. 6505 132 90 91 Global One Communicaoes Ltda 11992 90 9 29 Integrated Systems 11556 88 73 25 Cable-Wireless Panama 6535 79 5 19 Chilesat Servicios Empresari 15311 75 18 38 Telefonica Empresas 4270 71 18 9 Red de Interconexion Universi 11311 71 7 16 Sinectis S.A. 14535 70 6 5 Techtel S.A. 14259 69 4 5 GTD Internet S.A. 14420 65 4 24 ANDINATEL S.A. 5639 64 7 13 Telecommunications Services o 7080 64 4 1 Electronica y Comunicaciones 10292 62 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 106 8 3 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 24835 31 18 6 RAYA Telecom - Egypt 5713 26 125 24 Telkom SA Ltd 12455 25 4 2 Jambonet Autonomous system 14988 25 16 1 Botswana Telecommunications C 16637 25 9 18 Johnnic e-Ventures 6713 24 38 9 Itissalat Al-MAGHRIB 8524 22 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 15808 14 1 6 Communication Solutions Ltd i 8346 13 6 12 SONATEL-AS Autonomous System 17148 13 1 7 First National Bank 2609 12 26 4 Tunisia BackBone AS Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 699 691 Covad Communications 4134 725 605 Data Communications Bureau 4323 721 521 Time Warner Communications, I 6197 695 439 BellSouth Network Solutions, 7843 497 385 Adelphia Corp. 27364 405 382 Armstrong Cable Services 701 1315 373 UUNET Technologies, Inc. 6198 563 356 BellSouth Network Solutions, 5668 370 354 Century Telephone 9583 438 343 Satyam Infoway Ltd., 22909 380 340 Comcast Cable Corporation 22773 361 325 Cox Communications, Inc. Atla 9929 348 317 China Netcom Corp. 4755 360 307 Videsh Sanchar Nigam Ltd. Aut 6140 379 305 ImpSat 1239 938 302 Sprint 6347 377 292 SAVVIS Communications Corpora 4355 393 290 EarthLink, Inc. 9443 354 276 Primus Telecommunications 17676 329 275 XTAGE CORPORATION List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18416 UNALLOCATED 61.56.96.0/20 9919 New Century InfoComm 1877 UNALLOCATED 192.108.199.0/24 1876 Southern Methodist U 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 /12:58 /13:112 /14:294 /15:509 /16:7735 /17:1994 /18:3552 /19:9317 /20:9715 /21:7045 /22:9932 /23:11395 /24:74555 /25:206 /26:253 /27:141 /28:29 /29:4 /30:51 /31:0 /32:12 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 682 699 Covad Communications 7018 536 1426 AT&T 6197 531 695 BellSouth Network Solutions, 3356 495 895 Level 3 Communications, LLC 6198 402 563 BellSouth Network Solutions, 702 400 662 UUNET - Commercial IP service 27364 398 405 Armstrong Cable Services 7066 396 502 Virginia Polytechnic Institut 701 366 1315 UUNET Technologies, Inc. 1239 354 938 Sprint 5668 323 370 Century Telephone 20115 296 541 Charter Communications 690 295 332 Merit Network 4766 294 474 Korea Internet Exchange for " 9583 279 438 Satyam Infoway Ltd., 9929 277 348 China Netcom Corp. 14824 250 275 NewSouth Communications Corp. 25844 244 244 Skadden, Arps, Slate, Meagher 3320 243 296 Deutsche Telekom AG 13609 233 274 Choice One Communications Inc Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:821 13:1 15:4 16:1 17:3 20:8 24:782 32:82 38:63 40:54 44:3 55:1 56:4 57:13 61:402 62:465 63:1829 64:1882 65:1944 66:2512 67:291 68:540 69:500 70:32 80:502 81:267 82:152 83:31 128:144 129:253 130:101 131:89 132:19 134:184 135:17 136:153 137:106 138:151 139:37 140:150 141:133 142:108 143:50 144:78 145:41 146:299 147:77 148:368 149:92 150:93 151:64 152:189 153:62 154:1 155:124 156:131 157:54 158:145 159:159 160:51 161:53 162:377 163:79 164:331 165:163 166:98 167:209 168:218 169:103 170:289 171:8 192:5521 193:2656 194:2028 195:1351 196:538 198:3648 199:3021 200:3252 201:8 202:4547 203:5456 204:2986 205:1970 206:2266 207:2484 208:2290 209:2846 210:1366 211:521 212:960 213:1158 214:35 215:27 216:3353 217:893 218:169 219:100 220:209 221:30 222:23 End of report
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