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May 2004

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Weekly Routing Table Report
by Routing Table Analysis 03 May '04

03 May '04

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(a)lists.apnic.net If you have any comments please contact Philip Smith <pfs(a)cisco.com>. Routing Table Report 04:00 +10GMT Sat 01 May, 2004 Analysis Summary ---------------- BGP routing table entries examined: 137320 Prefixes after maximum aggregation: 83325 Unique aggregates announced to Internet: 66471 Total ASes present in the Internet Routing Table: 17153 Origin-only ASes present in the Internet Routing Table: 14875 Origin ASes announcing only one prefix: 6889 Transit ASes present in the Internet Routing Table: 2278 Transit-only ASes present in the Internet Routing Table: 75 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: 4 Non-routable prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 17 Number of addresses announced to Internet: 1283888516 Equivalent to 76 /8s, 134 /16s and 149 /24s Percentage of available address space announced: 34.6 Percentage of allocated address space announced: 56.8 Percentage of available address space allocated: 60.9 Total number of prefixes smaller than registry allocations: 100233 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 26175 Total APNIC prefixes after maximum aggregation: 13626 Prefixes being announced from the APNIC address blocks: 24493 Unique aggregates announced from the APNIC address blocks: 13629 APNIC Region origin ASes present in the Internet Routing Table: 2042 APNIC Region origin ASes announcing only one prefix: 607 APNIC Region transit ASes present in the Internet Routing Table: 327 Average APNIC Region AS path length visible: 4.9 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 145823488 Equivalent to 8 /8s, 177 /16s and 23 /24s Percentage of available APNIC address space announced: 66.5 APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239 17408 - 18431, 23552 - 24575 APNIC Address Blocks 58/7, 60/7, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 78970 Total ARIN prefixes after maximum aggregation: 48822 Prefixes being announced from the ARIN address blocks: 61006 Unique aggregates announced from the ARIN address blocks: 21496 ARIN Region origin ASes present in the Internet Routing Table: 9156 ARIN Region origin ASes announcing only one prefix: 3258 ARIN Region transit ASes present in the Internet Routing Table: 895 Average ARIN Region AS path length visible: 4.4 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 222159392 Equivalent to 13 /8s, 61 /16s and 226 /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: 25223 Total RIPE prefixes after maximum aggregation: 17991 Prefixes being announced from the RIPE address blocks: 22031 Unique aggregates announced from the RIPE address blocks: 14482 RIPE Region origin ASes present in the Internet Routing Table: 5413 RIPE Region origin ASes announcing only one prefix: 2896 RIPE Region transit ASes present in the Internet Routing Table: 938 Average RIPE Region AS path length visible: 5.3 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 160366080 Equivalent to 9 /8s, 142 /16s and 254 /24s Percentage of available RIPE address space announced: 56.2 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: 5805 Total LACNIC prefixes after maximum aggregation: 2212 Prefixes being announced from the LACNIC address blocks: 5477 Unique aggregates announced from the LACNIC address blocks: 3406 LACNIC Region origin ASes present in the Internet Routing Table: 375 LACNIC Region origin ASes announcing only one prefix: 105 LACNIC Region transit ASes present in the Internet Routing Table: 73 Average LACNIC Region AS path length visible: 5.0 Max LACNIC Region AS path length visible: 15 Number of LACNIC addresses announced to Internet: 14659840 Equivalent to 0 /8s, 223 /16s and 177 /24s Percentage of available LACNIC address space announced: 43.7 LACNIC AS Blocks 26592 - 26623, 27648 - 28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1146 Total AfriNIC prefixes after maximum aggregation: 674 Prefixes being announced from the AfriNIC address blocks: 745 Unique aggregates announced from the AfriNIC address blocks: 564 AfriNIC Region origin ASes present in the Internet Routing Table: 91 AfriNIC Region origin ASes announcing only one prefix: 23 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: 15 Number of AfriNIC addresses announced to Internet: 1837312 Equivalent to 0 /8s, 28 /16s and 9 /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 857 1091 624 Telstra Pty Ltd 4134 768 3480 138 Data Communications Bureau 4766 480 2917 258 Korea Internet Exchange for " 9583 462 40 80 Satyam Infoway Ltd., 9443 354 69 78 Primus Telecommunications 2907 353 1840 329 SINET Japan 4755 351 125 49 Videsh Sanchar Nigam Ltd. Aut 9929 344 155 31 China Netcom Corp. 17676 341 5084 33 XTAGE CORPORATION 703 334 373 257 UUNET 17557 325 23 164 Pakistan Telecom 2764 293 274 241 connect.com.au pty ltd 7474 272 284 213 Optus Communications Pty Ltd 9942 222 70 125 COMindico Australia 9800 219 364 59 CHINA UNICOM 4780 212 193 26 Digital United Inc. 9498 211 31 44 BHARTI BT INTERNET LTD. 4837 182 1683 105 chinanet IDC center beijing n 9304 170 161 25 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 1445 6956 1003 AT&T 701 1321 8523 947 UUNET Technologies, Inc. 1239 934 3032 631 Sprint 3356 894 10967 686 Level 3 Communications, LLC 209 743 3474 504 Qwest 4323 716 561 199 Time Warner Communications, I 18566 700 192 8 Covad Communications 6197 699 513 258 BellSouth Network Solutions, 6198 564 368 206 BellSouth Network Solutions, 852 514 1143 405 Telus Advanced Communications 20115 509 336 274 Charter Communications 7066 504 208 273 Virginia Polytechnic Institut 7843 501 639 113 Adelphia Corp. 7132 450 7847 332 Southwestern Bell Internet Se 2386 423 578 229 AT&T Data Communications Serv 705 399 145 274 UUNET Technologies, Inc. 6347 393 387 96 SAVVIS Communications Corpora 4355 391 323 101 EarthLink, Inc. 27364 387 30 24 Armstrong Cable Services 22909 385 840 24 Comcast Cable Corporation RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 660 2038 551 UUNET - Commercial IP service 3320 297 2477 237 Deutsche Telekom AG 8220 268 412 255 COLT Internet - International 3301 267 968 257 TeliaNet Sweden 680 244 2025 239 DFN-IP service G-WiN 1257 243 511 196 SWIPnet Swedish IP Network 13083 216 51 8 Mannesmann Datenverarbeitung 5515 201 779 143 Sonera Solution Autonomous Sy 3246 199 450 196 Song Networks 719 197 288 103 LANLINK autonomous system 25186 176 188 117 France Telecom Transpac's Tra 786 175 1826 175 The JANET IP Service 3215 175 839 69 France Telecom Transpac 8708 175 111 164 Romania Data Systems S.A. 5400 155 238 136 BT Ignite European Backbone 6746 138 28 114 Dynamic Network Technologies, 3269 134 1101 65 TELECOM ITALIA 3303 133 607 133 Swisscom Ltd 12302 122 18 29 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 261 357 129 UniNet S.A. de C.V. 11172 211 76 46 Servicios Alestra S.A de C.V 16814 164 11 6 NSS, S.A. 6147 152 78 20 Telefonica Del Peru 7303 141 53 28 Telecom Argentina Stet-France 6505 132 90 91 Global One Communicaoes Ltda 6503 130 219 89 AVANTEL, S.A. 11992 89 9 28 Integrated Systems 11556 88 73 25 Cable-Wireless Panama 6535 79 5 19 Chilesat Servicios Empresari 14420 77 5 33 ANDINATEL S.A. 15311 74 18 37 Telefonica Empresas 4270 70 18 9 Red de Interconexion Universi 11311 70 7 15 Sinectis S.A. 14535 70 6 5 Techtel S.A. 14259 69 4 5 GTD Internet S.A. 7080 64 4 1 Electronica y Comunicaciones 10292 62 6 24 TELECOMMUNICATIONS OF JAMAICA 27699 62 168 15 TELECOMUNICACOES DE SAO PAULO 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 31 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 8346 13 6 12 SONATEL-AS Autonomous System 17148 13 1 7 First National Bank 2609 12 26 4 Tunisia BackBone AS 3208 12 2 1 ARN Network Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 18566 700 692 Covad Communications 4134 768 630 Data Communications Bureau 4323 716 517 Time Warner Communications, I 6197 699 441 BellSouth Network Solutions, 7843 501 388 Adelphia Corp. 9583 462 382 Satyam Infoway Ltd., 701 1321 374 UUNET Technologies, Inc. 27364 387 363 Armstrong Cable Services 22909 385 361 Comcast Cable Corporation 5668 376 360 Century Telephone 6198 564 358 BellSouth Network Solutions, 22773 363 326 Cox Communications, Inc. Atla 9929 344 313 China Netcom Corp. 17676 341 308 XTAGE CORPORATION 6140 379 305 ImpSat 1239 934 303 Sprint 4755 351 302 Videsh Sanchar Nigam Ltd. Aut 6347 393 297 SAVVIS Communications Corpora 4355 391 290 EarthLink, Inc. 9443 354 276 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 18416 UNALLOCATED 61.56.96.0/24 9919 New Century InfoComm 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 /14:295 /15:508 /16:7745 /17:2000 /18:3552 /19:9341 /20:9766 /21:7054 /22:10046 /23:11430 /24:74677 /25:206 /26:250 /27:141 /28:30 /29:4 /30:51 /31:0 /32:12 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7018 1082 1445 AT&T 701 997 1321 UUNET Technologies, Inc. 1221 763 857 Telstra Pty Ltd 18566 683 700 Covad Communications 1239 667 934 Sprint 3356 649 894 Level 3 Communications, LLC 6197 588 699 BellSouth Network Solutions, 4323 502 716 Time Warner Communications, I 209 491 743 Qwest 7066 475 504 Virginia Polytechnic Institut 6198 456 564 BellSouth Network Solutions, 9583 448 462 Satyam Infoway Ltd., 702 437 660 UUNET - Commercial IP service 4766 392 480 Korea Internet Exchange for " 27364 379 387 Armstrong Cable Services 5668 357 376 Century Telephone 6140 354 379 ImpSat 705 353 399 UUNET Technologies, Inc. 852 352 514 Telus Advanced Communications 2386 345 423 AT&T Data Communications Serv Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 12:810 13:1 15:4 16:1 17:3 20:8 24:749 32:96 38:65 40:54 44:3 55:1 56:4 57:13 61:406 62:473 63:1857 64:1854 65:1955 66:2504 67:297 68:523 69:514 70:64 80:493 81:277 82:158 83:38 128:147 129:204 130:77 131:89 132:19 133:1 134:185 135:17 136:188 137:104 138:152 139:38 140:152 141:134 142:112 143:50 144:89 145:41 146:292 147:77 148:369 149:106 150:93 151:64 152:183 153:62 154:1 155:123 156:58 157:54 158:146 159:147 160:51 161:53 162:380 163:79 164:330 165:161 166:98 167:210 168:217 169:105 170:287 171:8 192:5528 193:2686 194:2027 195:1368 196:529 198:3642 199:3025 200:3282 201:8 202:4552 203:5506 204:2992 205:1975 206:2280 207:2485 208:2283 209:2849 210:1376 211:515 212:950 213:1157 214:36 215:28 216:3383 217:900 218:169 219:100 220:209 221:28 222:28 End of report

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