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Weekly Routing Table Report
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Routing Table Analysis
cscora at apnic.net
Fri Apr 1 20:10:30 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 02 Apr, 2005 Analysis Summary ---------------- BGP routing table entries examined: 158858 Prefixes after maximum aggregation: 92606 Unique aggregates announced to Internet: 76314 Total ASes present in the Internet Routing Table: 19277 Origin-only ASes present in the Internet Routing Table: 16774 Origin ASes announcing only one prefix: 7827 Transit ASes present in the Internet Routing Table: 2503 Transit-only ASes present in the Internet Routing Table: 68 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: 31 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1394234240 Equivalent to 83 /8s, 26 /16s and 83 /24s Percentage of available address space announced: 37.6 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74106 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32310 Total APNIC prefixes after maximum aggregation: 15324 Prefixes being announced from the APNIC address blocks: 30240 Unique aggregates announced from the APNIC address blocks: 15312 APNIC Region origin ASes present in the Internet Routing Table: 2239 APNIC Region origin ASes announcing only one prefix: 653 APNIC Region transit ASes present in the Internet Routing Table: 338 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 180060544 Equivalent to 10 /8s, 187 /16s and 129 /24s Percentage of available APNIC address space announced: 66.8 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 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: 86512 Total ARIN prefixes after maximum aggregation: 52745 Prefixes being announced from the ARIN address blocks: 67502 Unique aggregates announced from the ARIN address blocks: 24656 ARIN Region origin ASes present in the Internet Routing Table: 9794 ARIN Region origin ASes announcing only one prefix: 3550 ARIN Region transit ASes present in the Internet Routing Table: 926 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 243382272 Equivalent to 14 /8s, 129 /16s and 184 /24s Percentage of available ARIN address space announced: 69.1 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, 29696-30719, 31744-33791 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: 30109 Total RIPE prefixes after maximum aggregation: 20838 Prefixes being announced from the RIPE address blocks: 27161 Unique aggregates announced from the RIPE address blocks: 18075 RIPE Region origin ASes present in the Internet Routing Table: 6476 RIPE Region origin ASes announcing only one prefix: 3412 RIPE Region transit ASes present in the Internet Routing Table: 1083 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 199895488 Equivalent to 11 /8s, 234 /16s and 41 /24s Percentage of available RIPE address space announced: 70.1 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, 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: 8480 Total LACNIC prefixes after maximum aggregation: 2996 Prefixes being announced from the LACNIC address blocks: 6881 Unique aggregates announced from the LACNIC address blocks: 4000 LACNIC Region origin ASes present in the Internet Routing Table: 610 LACNIC Region origin ASes announcing only one prefix: 188 LACNIC Region transit ASes present in the Internet Routing Table: 109 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 18006016 Equivalent to 1 /8s, 18 /16s and 192 /24s Percentage of available LACNIC address space announced: 53.7 LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1411 Total AfriNIC prefixes after maximum aggregation: 703 Prefixes being announced from the AfriNIC address blocks: 907 Unique aggregates announced from the AfriNIC address blocks: 729 AfriNIC Region origin ASes present in the Internet Routing Table: 98 AfriNIC Region origin ASes announcing only one prefix: 24 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2190592 Equivalent to 0 /8s, 33 /16s and 109 /24s Percentage of available AfriNIC address space announced: 13.1 AfriNIC AS Blocks <none> AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4134 897 4843 180 CHINANET-BACKBONE 1221 783 1189 556 Telstra Pty Ltd 9583 691 51 41 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 521 243 114 Videsh Sanchar Nigam Ltd. Aut 7545 469 86 69 TPG Internet Pty Ltd 17676 427 6460 72 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 342 1822 318 SINET Japan 17557 341 24 159 Pakistan Telecom 10036 306 28 279 C&M Communication Co. Ltd. 4808 302 248 163 CNCGROUP IP network: China169 7474 294 268 213 SingTel Optus Pty Ltd 4802 283 47 167 Wantree Development 9498 262 82 53 BHARTI BT INTERNET LTD. 2764 253 238 202 AAPT Limited 703 251 279 206 UUNET - Commercial IP service 9800 235 386 69 CHINA UNICOM 17974 235 63 12 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1483 6562 973 AT&T WorldNet Services 721 1121 21763 314 DLA Systems Automation Center 4323 1091 663 222 Time Warner Telecom 701 1010 8282 860 UUNET Technologies, Inc. 174 995 5577 846 Cogent Communications 1239 908 2865 657 Sprint 6197 883 384 412 BellSouth Network Solutions, 2386 835 500 617 AT&T Data Communications Serv 18566 780 208 6 Covad Communications 209 646 3475 501 Qwest 20115 597 494 309 Charter Communications 3356 583 10852 431 Level 3 Communications, LLC 3561 539 2368 414 Savvis 852 538 1095 397 Telus Advanced Communications 6478 515 836 116 AT&T Worldnet Services 3602 507 121 93 Sprint Canada, Inc. 5668 477 115 25 CenturyTel Internet Holdings, 22773 475 1188 21 Cox Communications, Inc. 6198 469 541 199 BellSouth Network Solutions, 27364 464 43 18 Armstrong Cable Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 604 2003 494 UUNET - Commercial IP service 3320 302 2993 236 Deutsche Telekom AG 3301 297 1117 287 TeliaNet Sweden 8220 277 468 271 COLT Telecommunications 680 254 2041 239 DFN-IP service G-WiN 3246 232 476 226 Song Networks 8708 227 251 206 Romania Data Systems S.A. 1257 201 712 177 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 176 1794 176 The JANET IP Service 3269 167 1472 73 TELECOM ITALIA 8866 166 21 12 Bulgarian Telecommunication C 6746 162 47 142 Dynamic Network Technologies, 719 157 322 99 LANLINK autonomous system 3300 153 184 86 AUCS Communications Services 5400 144 281 127 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 126 2304 113 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 350 527 146 UniNet S.A. de C.V. 16814 233 14 6 NSS, S.A. 11172 214 99 52 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 11664 151 19 23 Keytech SA 7303 148 67 28 Telecom Argentina Stet-France 6505 131 90 87 Global One Communicaoes Ltda 14117 119 8 4 Telefonica del Sur S.A. 22047 116 96 6 VTR PUNTO NET S.A. 6503 106 146 75 AVANTEL, S.A. 18822 103 6 15 TELEFONICA MANQUEHUE 11556 99 49 5 Cable-Wireless Panama 13999 98 52 9 Mega Cable S.A. de C.V. 19169 94 6 16 Telconet 23216 87 24 23 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 10481 82 32 7 Prima S.A. 4270 79 18 9 Red de Interconexion Universi AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 268 635 225 The Internet Solution 5536 116 15 19 Internet Egypt Network 20928 91 16 2 Noor Advanced Technologies AS 2018 90 295 87 Tertiary Education Network 2905 74 266 68 The Internetworking Company o 8452 57 20 5 TEDATA 24835 55 34 6 RAYA Telecom - Egypt 12455 41 7 4 Jambonet Autonomous system 9129 40 3 2 UUNET Kenya 6713 37 54 9 Itissalat Al-MAGHRIB 5713 35 141 28 Telkom SA Ltd 8524 24 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 15475 20 84 4 Nile Online 10798 19 1 11 Standard Bank of South Africa 7460 18 3 5 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 21280 17 2 3 Swift Global Kenya Ltd.Is an 15808 16 1 1 Communication Solutions Ltd i 21491 16 1 3 UTL On-line is RF broadband I Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65531 * 4323 1091 869 Time Warner Telecom 721 1121 807 DLA Systems Automation Center 18566 780 774 Covad Communications 4134 897 717 CHINANET-BACKBONE 9583 691 650 Sify Limited 6197 883 471 BellSouth Network Solutions, 22773 475 454 Cox Communications, Inc. 5668 477 452 CenturyTel Internet Holdings, 27364 464 446 Armstrong Cable Services 3602 507 414 Sprint Canada, Inc. 4755 521 407 Videsh Sanchar Nigam Ltd. Aut 7545 469 400 TPG Internet Pty Ltd 6478 515 399 AT&T Worldnet Services 6467 423 388 E.Spire Communications, Inc. 17676 427 355 Softbank BB Corp. 9929 358 313 China Netcom Corp. 6140 383 312 ImpSat 4766 586 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication 65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.163.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.166.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.167.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.168.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.169.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.170.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.171.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.172.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.173.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.174.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.175.0/24 33205 KMC Telecom Solution 64832 PRIVATE 64.193.112.0/21 7911 Williams Communicati 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd. 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom 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 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 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 172.32.0.0/24 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 192.172.0.0/19 721 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 /8:19 /9:3 /10:8 /11:15 /12:66 /13:150 /14:307 /15:577 /16:8330 /17:2509 /18:4288 /19:10145 /20:10902 /21:8737 /22:12073 /23:13137 /24:86697 /25:281 /26:268 /27:133 /28:60 /29:23 /30:87 /31:0 /32:43 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 765 780 Covad Communications 6197 724 883 BellSouth Network Solutions, 7018 657 1483 AT&T WorldNet Services 2386 588 835 AT&T Data Communications Serv 9583 510 691 Sify Limited 4323 504 1091 Time Warner Telecom 27364 449 464 Armstrong Cable Services 4766 402 586 Korea Telecom (KIX) 5668 401 477 CenturyTel Internet Holdings, 1239 376 908 Sprint 702 368 604 UUNET - Commercial IP service 6198 338 469 BellSouth Network Solutions, 6467 314 423 E.Spire Communications, Inc. 10036 306 306 C&M Communication Co. Ltd. 6517 291 314 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 264 311 Carolina Online, Inc. 15270 250 269 PaeTec.net -a division of Pae 3320 247 302 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:12 12:1510 13:1 15:9 16:2 17:3 18:4 20:4 24:745 32:64 33:4 38:103 40:55 44:3 47:2 52:3 55:2 56:3 57:23 58:38 59:13 60:25 61:740 62:558 63:1873 64:2654 65:2075 66:2731 67:513 68:508 69:958 70:77 71:5 72:120 80:538 81:513 82:401 83:261 84:135 85:158 128:142 129:158 130:89 131:280 132:36 133:1 134:144 135:40 136:191 137:67 138:160 139:52 140:193 141:106 142:137 143:130 144:173 145:32 146:280 147:101 148:294 149:167 150:96 151:63 152:107 153:87 154:4 155:143 156:68 157:87 158:167 159:171 160:73 161:60 162:200 163:83 164:205 165:161 166:153 167:230 168:413 169:137 170:311 171:8 172:1 192:5663 193:3119 194:2313 195:1548 196:634 198:3933 199:3271 200:3992 201:64 202:5385 203:6121 204:3780 205:2029 206:2399 207:2710 208:2073 209:3252 210:1684 211:828 212:1192 213:1272 214:244 215:31 216:3677 217:1155 218:188 219:99 220:371 221:147 222:73 End of report
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