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@lists.apnic.net If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 23 Jul, 2005 Analysis Summary ---------------- BGP routing table entries examined: 167176 Prefixes after maximum aggregation: 96433 Unique aggregates announced to Internet: 80898 Total ASes present in the Internet Routing Table: 20129 Origin-only ASes present in the Internet Routing Table: 17543 Origin ASes announcing only one prefix: 8262 Transit ASes present in the Internet Routing Table: 2586 Transit-only ASes present in the Internet Routing Table: 76 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 26 Prefixes from unregistered ASNs in the Routing Table: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 15 Number of addresses announced to Internet: 1397595349 Equivalent to 83 /8s, 77 /16s and 156 /24s Percentage of available address space announced: 37.7 Percentage of allocated address space announced: 56.8 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 79319 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 34695 Total APNIC prefixes after maximum aggregation: 15921 Prefixes being announced from the APNIC address blocks: 32554 Unique aggregates announced from the APNIC address blocks: 16320 APNIC Region origin ASes present in the Internet Routing Table: 2312 APNIC Region origin ASes announcing only one prefix: 677 APNIC Region transit ASes present in the Internet Routing Table: 347 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 191353472 Equivalent to 11 /8s, 103 /16s and 210 /24s Percentage of available APNIC address space announced: 71.0 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 APNIC Address Blocks 58/7, 60/7, 124/7, 126/8, 202/7, 210/7, 218/7, 220/7 and 222/8 ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 89540 Total ARIN prefixes after maximum aggregation: 54579 Prefixes being announced from the ARIN address blocks: 70010 Unique aggregates announced from the ARIN address blocks: 25844 ARIN Region origin ASes present in the Internet Routing Table: 10090 ARIN Region origin ASes announcing only one prefix: 3721 ARIN Region transit ASes present in the Internet Routing Table: 943 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 254705941 Equivalent to 15 /8s, 46 /16s and 129 /24s Percentage of available ARIN address space announced: 63.3 ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 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, 29696-30719, 31744-33791 35840-36863 ARIN Address Blocks 24/8, 63/8, 64/6, 68/7, 70/6, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 32158 Total RIPE prefixes after maximum aggregation: 21998 Prefixes being announced from the RIPE address blocks: 29193 Unique aggregates announced from the RIPE address blocks: 19630 RIPE Region origin ASes present in the Internet Routing Table: 6899 RIPE Region origin ASes announcing only one prefix: 3635 RIPE Region transit ASes present in the Internet Routing Table: 1132 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 212296768 Equivalent to 12 /8s, 167 /16s and 100 /24s Percentage of available RIPE address space announced: 63.3 RIPE AS Blocks 1877-1901, 2043, 2047, 2107-2136, 2585-2614 (pre-ERX allocations) 2773-2822, 2830-2879, 3154-3353, 5377-5631 6656-6911, 8192-9215, 12288-13311, 15360-16383 20480-21503, 24576-25599, 28672-29695 30720-31743, 33792-35839 RIPE Address Blocks 62/8, 80/5, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 9105 Total LACNIC prefixes after maximum aggregation: 3154 Prefixes being announced from the LACNIC address blocks: 7468 Unique aggregates announced from the LACNIC address blocks: 4354 LACNIC Region origin ASes present in the Internet Routing Table: 626 LACNIC Region origin ASes announcing only one prefix: 193 LACNIC Region transit ASes present in the Internet Routing Table: 116 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 20573696 Equivalent to 1 /8s, 57 /16s and 238 /24s Percentage of available LACNIC address space announced: 30.7 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1656 Total AfriNIC prefixes after maximum aggregation: 781 Prefixes being announced from the AfriNIC address blocks: 1013 Unique aggregates announced from the AfriNIC address blocks: 778 AfriNIC Region origin ASes present in the Internet Routing Table: 131 AfriNIC Region origin ASes announcing only one prefix: 36 AfriNIC Region transit ASes present in the Internet Routing Table: 16 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2340096 Equivalent to 0 /8s, 35 /16s and 181 /24s Percentage of available AfriNIC address space announced: 7.0 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 961 5568 195 CHINANET-BACKBONE 9583 768 77 14 Sify Limited 1221 757 1455 533 Telstra Pty Ltd 4755 666 248 146 Videsh Sanchar Nigam Ltd. Aut 4766 590 3412 278 Korea Telecom (KIX) 7545 513 106 74 TPG Internet Pty Ltd 17676 463 6707 98 Softbank BB Corp. 9443 382 82 77 Primus Telecommunications 9929 364 224 46 China Netcom Corp. 2907 343 1806 318 SINET Japan 9498 332 83 61 BHARTI BT INTERNET LTD. 7474 313 272 216 SingTel Optus Pty Ltd 17557 306 23 155 Pakistan Telecom 4802 290 50 167 Wantree Development 4808 286 244 168 CNCGROUP IP network: China169 9837 279 80 183 Powertel Ltd 18302 279 109 154 SK Global co., Ltd 17974 270 65 14 PT TELEKOMUNIKASI INDONESIA 17488 266 16 8 Hathway IP Over Cable Interne 703 252 261 207 UUNET - Commercial IP service ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1494 6417 969 AT&T WorldNet Services 4323 1139 672 224 Time Warner Telecom 174 1135 5824 1054 Cogent Communications 721 1080 21779 310 DLA Systems Automation Center 701 1022 8168 864 UUNET Technologies, Inc. 6197 939 522 433 BellSouth Network Solutions, 2386 888 528 655 AT&T Data Communications Serv 1239 886 2891 637 Sprint 18566 832 224 7 Covad Communications 20115 652 499 321 Charter Communications 209 623 3471 490 Qwest 3356 566 10780 434 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 543 123 104 Sprint Canada, Inc. 3561 538 2385 422 Savvis 852 535 1093 387 Telus Advanced Communications 7725 509 64 17 MediaOne 22773 503 1188 23 Cox Communications, Inc. 5668 494 114 22 CenturyTel Internet Holdings, 6198 467 396 224 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 592 1995 483 UUNET - Commercial IP service 3301 300 1081 286 TeliaNet Sweden 3320 291 3232 240 Deutsche Telekom AG 8220 266 473 262 COLT Telecommunications 680 245 2041 241 DFN-IP service G-WiN 3246 230 469 223 Song Networks 8708 224 253 210 Romania Data Systems S.A. 1257 194 712 172 SWIPnet Swedish IP Network 5515 181 778 127 Sonera Solution Autonomous Sy 786 175 1794 175 The JANET IP Service 5400 173 286 146 BT Ignite European Backbone 6746 173 49 151 Dynamic Network Technologies, 3269 169 1520 72 TELECOM ITALIA 719 168 340 100 LANLINK autonomous system 8866 163 21 11 Bulgarian Telecommunication C 3300 154 184 87 AUCS Communications Services 9121 150 272 36 TTnet Autonomous System 6830 149 537 31 UPC Distribution Services 25186 141 145 98 France Telecom Transpac's Tra 1273 137 175 96 Cable & Wireless Deutschland LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 380 599 158 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 232 99 59 Servicios Alestra S.A de C.V 6147 192 110 21 Telefonica Del Peru 11664 181 20 23 Keytech SA 14117 152 9 5 Telefonica del Sur S.A. 7303 150 69 18 Telecom Argentina Stet-France 22047 143 112 7 VTR PUNTO NET S.A. 19632 142 14 5 Metropolis Intercom S.A. 11556 131 64 3 Cable-Wireless Panama 6505 130 90 87 Global One Communicaoes Ltda 19169 115 7 22 Telconet 6503 114 147 74 AVANTEL, S.A. 13999 110 52 9 Mega Cable S.A. de C.V. 18822 110 7 14 TELEFONICA MANQUEHUE 10481 101 40 7 Prima S.A. 23216 98 24 23 RAMtelecom Telecomunicaciones 22927 97 81 26 TELEFONICA DE ARGENTINA 5639 96 12 9 Telecommunications Services o 21826 95 13 20 INTERCABLE AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 263 621 221 The Internet Solution 5536 120 15 17 Internet Egypt Network 2018 97 295 88 Tertiary Education Network 8452 93 28 6 TEDATA 2905 76 266 68 The Internetworking Company o 24835 57 34 6 RAYA Telecom - Egypt 20928 56 16 2 Noor Advanced Technologies AS 6713 51 54 8 Itissalat Al-MAGHRIB 15475 50 84 4 Nile Online 9129 43 3 3 UUNET Kenya 12455 38 6 3 Jambonet Autonomous system 5713 36 142 29 Telkom SA Ltd 15706 31 8 3 Sudatel Internet Exchange Aut 8524 23 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 23889 20 5 9 MAURITIUS TELECOM 25364 20 1 3 Egypt Cyber Cenyer Network 10798 19 1 11 Standard Bank of South Africa 21491 18 1 1 UTL On-line is RF broadband I 12258 17 3 11 Vodacom Internet Company Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1139 915 Time Warner Telecom 18566 832 825 Covad Communications 721 1080 770 DLA Systems Automation Center 4134 961 766 CHINANET-BACKBONE 9583 768 754 Sify Limited 27364 554 536 Armstrong Cable Services 4755 666 520 Videsh Sanchar Nigam Ltd. Aut 6197 939 506 BellSouth Network Solutions, 7725 509 492 MediaOne 22773 503 480 Cox Communications, Inc. 5668 494 472 CenturyTel Internet Holdings, 3602 543 439 Sprint Canada, Inc. 7545 513 439 TPG Internet Pty Ltd 17676 463 365 Softbank BB Corp. 6467 379 345 E.Spire Communications, Inc. 20115 652 331 Charter Communications 19262 433 319 Verizon Global Networks 9929 364 318 China Netcom Corp. 4766 590 312 Korea Telecom (KIX) 9443 382 305 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65050 PRIVATE 168.96.148.0/24 6140 ImpSat 65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A 65004 PRIVATE 200.0.113.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.0.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.1.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.2.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.3.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.4.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.5.0/24 28477 Universidad Autonoma 65004 PRIVATE 200.4.6.0/24 28477 Universidad Autonoma 65142 PRIVATE 200.32.76.0/24 6140 ImpSat 65142 PRIVATE 200.32.77.0/24 6140 ImpSat 64512 PRIVATE 200.61.48.0/20 11664 Keytech SA 64512 PRIVATE 200.61.58.0/23 11664 Keytech SA 64512 PRIVATE 200.80.148.0/23 11664 Keytech SA 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 50.160.0.0/13 1221 Telstra Pty Ltd 132.0.0.0/10 721 DLA Systems Automation Center 137.0.0.0/13 721 DLA Systems Automation Center 158.0.0.0/13 721 DLA Systems Automation Center 172.32.0.0/24 7011 Citizens Utilities 192.43.230.0/24 7575 Australian Academic and Rease 192.44.0.0/24 5501 Fraunhofer Gesellschaft 192.44.0.0/19 702 UUNET - Commercial IP service 192.70.164.0/24 25689 National Research Council of 192.84.205.0/24 719 LANLINK autonomous system 192.119.135.0/24 270 NASA 192.135.50.0/24 7018 AT&T WorldNet Services 192.169.0.0/23 3970 RGnet, Inc. 192.172.0.0/19 721 DLA Systems Automation Center 192.200.100.0/24 7018 AT&T WorldNet Services Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:17 /9:3 /10:8 /11:15 /12:75 /13:167 /14:317 /15:601 /16:8464 /17:2642 /18:4518 /19:10517 /20:11463 /21:9498 /22:12987 /23:13884 /24:91004 /25:347 /26:292 /27:171 /28:51 /29:29 /30:73 /31:0 /32:33 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 816 832 Covad Communications 6197 765 939 BellSouth Network Solutions, 7018 701 1494 AT&T WorldNet Services 2386 602 888 AT&T Data Communications Serv 9583 586 768 Sify Limited 27364 545 554 Armstrong Cable Services 4323 540 1139 Time Warner Telecom 7725 479 509 MediaOne 4766 408 590 Korea Telecom (KIX) 5668 402 494 CenturyTel Internet Holdings, 1239 371 886 Sprint 702 365 592 UUNET - Commercial IP service 6198 342 467 BellSouth Network Solutions, 7011 325 376 Citizens Utilities 19916 305 312 OLM LLC 15270 296 321 PaeTec.net -a division of Pae 6517 291 313 Yipes Communications, Inc. 20115 283 652 Charter Communications 9929 276 364 China Netcom Corp. 11456 276 315 Carolina Online, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:6 8:23 9:1 12:1553 13:1 15:9 16:2 17:3 18:3 20:4 24:1181 30:2 32:69 33:2 38:136 40:54 44:4 47:2 52:4 55:2 56:3 57:23 58:137 59:58 60:67 61:750 62:638 63:1889 64:2792 65:2067 66:2914 67:635 68:556 69:1113 70:147 71:10 72:268 80:589 81:594 82:433 83:289 84:225 85:287 86:62 87:17 128:157 129:167 130:88 131:292 132:38 133:1 134:145 135:42 136:138 137:73 138:164 139:61 140:303 141:107 142:152 143:138 144:203 145:34 146:290 147:110 148:290 149:177 150:107 151:64 152:108 153:88 154:5 155:141 156:78 157:99 158:164 159:167 160:78 161:70 162:218 163:94 164:193 165:186 166:158 167:244 168:439 169:144 170:320 171:8 172:1 190:1 192:5704 193:3228 194:2427 195:1593 196:661 198:3895 199:3288 200:4062 201:208 202:5914 203:6396 204:3801 205:2024 206:2431 207:2802 208:2049 209:3329 210:1697 211:805 212:1259 213:1332 214:273 215:31 216:3575 217:1122 218:211 219:157 220:392 221:248 222:121 End of report