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Weekly Routing Table Report
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Routing Table Analysis
cscora at apnic.net
Fri May 13 20:12:08 CEST 2005
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 14 May, 2005 Analysis Summary ---------------- BGP routing table entries examined: 162108 Prefixes after maximum aggregation: 94259 Unique aggregates announced to Internet: 78235 Total ASes present in the Internet Routing Table: 19652 Origin-only ASes present in the Internet Routing Table: 17086 Origin ASes announcing only one prefix: 8015 Transit ASes present in the Internet Routing Table: 2566 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 33 Number of addresses announced to Internet: 1391460672 Equivalent to 82 /8s, 240 /16s and 1 /24s Percentage of available address space announced: 37.5 Percentage of allocated address space announced: 58.9 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 76090 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 33164 Total APNIC prefixes after maximum aggregation: 15592 Prefixes being announced from the APNIC address blocks: 31094 Unique aggregates announced from the APNIC address blocks: 15795 APNIC Region origin ASes present in the Internet Routing Table: 2265 APNIC Region origin ASes announcing only one prefix: 664 APNIC Region transit ASes present in the Internet Routing Table: 342 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 182890112 Equivalent to 10 /8s, 230 /16s and 174 /24s Percentage of available APNIC address space announced: 67.9 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575 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: 87932 Total ARIN prefixes after maximum aggregation: 53612 Prefixes being announced from the ARIN address blocks: 68656 Unique aggregates announced from the ARIN address blocks: 25198 ARIN Region origin ASes present in the Internet Routing Table: 9936 ARIN Region origin ASes announcing only one prefix: 3619 ARIN Region transit ASes present in the Internet Routing Table: 944 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 247977984 Equivalent to 14 /8s, 199 /16s and 216 /24s Percentage of available ARIN address space announced: 70.4 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, 198/7, 204/6, 208/7 and 216/8 RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 30781 Total RIPE prefixes after maximum aggregation: 21276 Prefixes being announced from the RIPE address blocks: 27830 Unique aggregates announced from the RIPE address blocks: 18584 RIPE Region origin ASes present in the Internet Routing Table: 6644 RIPE Region origin ASes announcing only one prefix: 3500 RIPE Region transit ASes present in the Internet Routing Table: 1119 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 205021632 Equivalent to 12 /8s, 56 /16s and 97 /24s Percentage of available RIPE address space announced: 71.9 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, 88/8, 188/8, 193/8, 194/7, 212/7 and 217/8 LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 8623 Total LACNIC prefixes after maximum aggregation: 3013 Prefixes being announced from the LACNIC address blocks: 7049 Unique aggregates announced from the LACNIC address blocks: 4101 LACNIC Region origin ASes present in the Internet Routing Table: 617 LACNIC Region origin ASes announcing only one prefix: 196 LACNIC Region transit ASes present in the Internet Routing Table: 114 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 18751744 Equivalent to 1 /8s, 30 /16s and 33 /24s Percentage of available LACNIC address space announced: 55.9 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 1588 Total AfriNIC prefixes after maximum aggregation: 766 Prefixes being announced from the AfriNIC address blocks: 972 Unique aggregates announced from the AfriNIC address blocks: 773 AfriNIC Region origin ASes present in the Internet Routing Table: 124 AfriNIC Region origin ASes announcing only one prefix: 36 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2272256 Equivalent to 0 /8s, 34 /16s and 172 /24s Percentage of available AfriNIC address space announced: 6.8 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 906 5136 185 CHINANET-BACKBONE 1221 757 1182 543 Telstra Pty Ltd 9583 735 54 75 Sify Limited 4755 590 244 123 Videsh Sanchar Nigam Ltd. Aut 4766 590 3413 279 Korea Telecom (KIX) 7545 495 88 72 TPG Internet Pty Ltd 17676 431 6509 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 360 197 46 China Netcom Corp. 2907 345 1838 319 SINET Japan 10036 317 29 286 C&M Communication Co. Ltd. 17557 311 22 149 Pakistan Telecom 4808 309 251 169 CNCGROUP IP network: China169 7474 303 270 208 SingTel Optus Pty Ltd 9498 296 83 59 BHARTI BT INTERNET LTD. 4802 281 47 166 Wantree Development 17974 258 65 14 PT TELEKOMUNIKASI INDONESIA 703 255 277 210 UUNET - Commercial IP service 2764 253 238 198 AAPT Limited 18302 247 75 141 SK Global co., Ltd ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1489 6486 953 AT&T WorldNet Services 174 1179 5611 1009 Cogent Communications 721 1115 21755 312 DLA Systems Automation Center 4323 1105 648 218 Time Warner Telecom 701 1004 8233 856 UUNET Technologies, Inc. 6197 905 378 461 BellSouth Network Solutions, 1239 899 2869 651 Sprint 2386 853 533 633 AT&T Data Communications Serv 18566 806 224 7 Covad Communications 209 655 3521 495 Qwest 20115 594 503 312 Charter Communications 3356 578 10833 436 Level 3 Communications, LLC 27364 565 43 18 Armstrong Cable Services 3561 537 2400 421 Savvis 852 531 1095 391 Telus Advanced Communications 3602 513 122 97 Sprint Canada, Inc. 5668 487 115 25 CenturyTel Internet Holdings, 22773 483 1188 21 Cox Communications, Inc. 6198 465 382 219 BellSouth Network Solutions, 7725 449 60 15 MediaOne RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 596 2003 488 UUNET - Commercial IP service 3320 303 3233 237 Deutsche Telekom AG 3301 292 1084 281 TeliaNet Sweden 8220 272 469 266 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 229 252 212 Romania Data Systems S.A. 1257 200 728 176 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 6746 165 47 144 Dynamic Network Technologies, 3269 164 1488 69 TELECOM ITALIA 8866 164 21 11 Bulgarian Telecommunication C 5400 161 285 135 BT Ignite European Backbone 719 159 340 101 LANLINK autonomous system 3300 155 185 88 AUCS Communications Services 25186 138 137 98 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 127 2304 115 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 373 598 147 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 225 99 54 Servicios Alestra S.A de C.V 6147 177 102 20 Telefonica Del Peru 11664 153 19 22 Keytech SA 7303 148 68 21 Telecom Argentina Stet-France 14117 136 9 5 Telefonica del Sur S.A. 6505 131 90 88 Global One Communicaoes Ltda 22047 131 96 6 VTR PUNTO NET S.A. 19632 119 14 5 Metropolis Intercom S.A. 13999 112 52 9 Mega Cable S.A. de C.V. 11556 111 55 7 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 103 146 73 AVANTEL, S.A. 19169 99 6 16 Telconet 10481 98 40 7 Prima S.A. 21826 92 12 18 INTERCABLE 22927 92 65 22 TELEFONICA DE ARGENTINA 11311 89 8 18 Sinectis S.A. 23216 89 24 23 RAMtelecom Telecomunicaciones AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 270 637 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 20928 93 16 2 Noor Advanced Technologies AS 2018 90 295 86 Tertiary Education Network 2905 74 266 68 The Internetworking Company o 8452 71 28 6 TEDATA 24835 63 34 6 RAYA Telecom - Egypt 9129 44 3 3 UUNET Kenya 12455 39 6 3 Jambonet Autonomous system 5713 36 142 29 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 15706 31 8 3 Sudatel Internet Exchange Aut 2609 26 26 3 Tunisia BackBone AS 8524 25 1 4 AUCEGYPT Autonomous System 15475 24 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 33765 19 3 8 TANZANIA TELECOMMUNICATIONS C 7460 17 3 5 LIA Internet Access 12258 17 3 11 Vodacom Internet Company Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 1105 887 Time Warner Telecom 721 1115 803 DLA Systems Automation Center 18566 806 799 Covad Communications 4134 906 721 CHINANET-BACKBONE 9583 735 660 Sify Limited 27364 565 547 Armstrong Cable Services 4755 590 467 Videsh Sanchar Nigam Ltd. Aut 5668 487 462 CenturyTel Internet Holdings, 22773 483 462 Cox Communications, Inc. 6197 905 444 BellSouth Network Solutions, 7725 449 434 MediaOne 7545 495 423 TPG Internet Pty Ltd 3602 513 416 Sprint Canada, Inc. 6467 419 384 E.Spire Communications, Inc. 17676 431 358 Softbank BB Corp. 6140 402 329 ImpSat 9929 360 314 China Netcom Corp. 4766 590 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications 6478 415 289 AT&T Worldnet Services List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65050 PRIVATE 168.96.148.0/24 6140 ImpSat 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 64512 PRIVATE 200.61.32.0/23 11664 Keytech SA 64512 PRIVATE 200.61.48.0/20 11664 Keytech SA 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 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 172.1.0.0/16 12956 Telefonica Data Autonomous Sy 172.2.0.0/16 12956 Telefonica Data Autonomous Sy 172.3.0.0/16 12956 Telefonica Data Autonomous Sy 172.4.0.0/16 12956 Telefonica Data Autonomous Sy 172.5.0.0/16 12956 Telefonica Data Autonomous Sy 172.6.0.0/16 12956 Telefonica Data Autonomous Sy 172.7.0.0/16 12956 Telefonica Data Autonomous Sy 172.8.0.0/16 12956 Telefonica Data Autonomous Sy 172.9.0.0/16 12956 Telefonica Data Autonomous Sy 172.10.0.0/16 12956 Telefonica Data Autonomous Sy 172.11.0.0/16 12956 Telefonica Data Autonomous Sy 172.12.0.0/16 12956 Telefonica Data Autonomous Sy 172.13.0.0/16 12956 Telefonica Data Autonomous Sy 172.14.0.0/16 12956 Telefonica Data Autonomous Sy 172.15.0.0/16 12956 Telefonica Data Autonomous Sy 172.32.0.0/24 7011 Citizens Utilities 172.50.0.0/16 12956 Telefonica Data Autonomous Sy 172.51.0.0/16 12956 Telefonica Data Autonomous Sy 172.52.0.0/16 12956 Telefonica Data Autonomous Sy 172.74.0.0/16 12956 Telefonica Data Autonomous Sy 172.122.28.0/24 210 Utah Education Network 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 192.172.0.0/19 721 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 /8:18 /9:3 /10:8 /11:15 /12:70 /13:156 /14:306 /15:599 /16:8407 /17:2550 /18:4377 /19:10319 /20:11111 /21:9001 /22:12466 /23:13410 /24:88429 /25:279 /26:242 /27:136 /28:67 /29:38 /30:71 /31:0 /32:30 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 790 806 Covad Communications 6197 744 905 BellSouth Network Solutions, 7018 677 1489 AT&T WorldNet Services 2386 603 853 AT&T Data Communications Serv 27364 556 565 Armstrong Cable Services 9583 551 735 Sify Limited 4323 523 1105 Time Warner Telecom 7725 422 449 MediaOne 4766 407 590 Korea Telecom (KIX) 5668 402 487 CenturyTel Internet Holdings, 1239 378 899 Sprint 702 368 596 UUNET - Commercial IP service 6198 342 465 BellSouth Network Solutions, 10036 317 317 C&M Communication Co. Ltd. 6467 300 419 E.Spire Communications, Inc. 6517 300 323 Yipes Communications, Inc. 7011 298 348 Citizens Utilities 9929 281 360 China Netcom Corp. 11456 278 319 Carolina Online, Inc. 15270 259 279 PaeTec.net -a division of Pae Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:3 8:13 12:1531 13:1 15:9 16:2 17:3 18:4 20:4 24:1123 30:2 32:69 33:4 38:114 40:53 44:3 47:2 52:4 55:2 56:3 57:21 58:47 59:32 60:33 61:796 62:609 63:1881 64:2717 65:2072 66:2850 67:577 68:528 69:1014 70:105 71:17 72:175 80:570 81:549 82:404 83:263 84:178 85:194 86:9 128:152 129:160 130:82 131:277 132:35 133:1 134:148 135:40 136:189 137:65 138:169 139:57 140:191 141:105 142:153 143:142 144:182 145:33 146:281 147:108 148:291 149:165 150:97 151:65 152:106 153:86 154:5 155:144 156:78 157:92 158:161 159:174 160:77 161:65 162:203 163:82 164:207 165:175 166:154 167:233 168:423 169:140 170:315 171:8 172:2 192:5705 193:3199 194:2361 195:1558 196:655 198:3935 199:3277 200:3907 201:128 202:5554 203:6178 204:3822 205:2016 206:2476 207:2786 208:2064 209:3294 210:1689 211:829 212:1142 213:1281 214:266 215:31 216:3439 217:1133 218:198 219:105 220:377 221:214 222:102 End of report
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