- routing-wg - mailman.ripe.net

Weekly Routing Table Report
by Routing Table Analysis 22 Apr '05

22 Apr '05

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 23 Apr, 2005 Analysis Summary ---------------- BGP routing table entries examined: 160685 Prefixes after maximum aggregation: 93441 Unique aggregates announced to Internet: 77331 Total ASes present in the Internet Routing Table: 19488 Origin-only ASes present in the Internet Routing Table: 16946 Origin ASes announcing only one prefix: 7942 Transit ASes present in the Internet Routing Table: 2542 Transit-only ASes present in the Internet Routing Table: 69 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 29 Prefixes from unregistered ASNs in the Routing Table: 15 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1384702016 Equivalent to 82 /8s, 136 /16s and 224 /24s Percentage of available address space announced: 37.4 Percentage of allocated address space announced: 58.6 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 75129 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32783 Total APNIC prefixes after maximum aggregation: 15452 Prefixes being announced from the APNIC address blocks: 30715 Unique aggregates announced from the APNIC address blocks: 15525 APNIC Region origin ASes present in the Internet Routing Table: 2250 APNIC Region origin ASes announcing only one prefix: 662 APNIC Region transit ASes present in the Internet Routing Table: 347 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 181900160 Equivalent to 10 /8s, 215 /16s and 147 /24s Percentage of available APNIC address space announced: 67.5 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: 87296 Total ARIN prefixes after maximum aggregation: 53207 Prefixes being announced from the ARIN address blocks: 68081 Unique aggregates announced from the ARIN address blocks: 25036 ARIN Region origin ASes present in the Internet Routing Table: 9884 ARIN Region origin ASes announcing only one prefix: 3588 ARIN Region transit ASes present in the Internet Routing Table: 937 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 246540032 Equivalent to 14 /8s, 177 /16s and 231 /24s Percentage of available ARIN address space announced: 70.0 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: 30516 Total RIPE prefixes after maximum aggregation: 21066 Prefixes being announced from the RIPE address blocks: 27554 Unique aggregates announced from the RIPE address blocks: 18353 RIPE Region origin ASes present in the Internet Routing Table: 6575 RIPE Region origin ASes announcing only one prefix: 3470 RIPE Region transit ASes present in the Internet Routing Table: 1101 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 201801920 Equivalent to 12 /8s, 7 /16s and 64 /24s Percentage of available RIPE address space announced: 70.8 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: 8628 Total LACNIC prefixes after maximum aggregation: 3008 Prefixes being announced from the LACNIC address blocks: 7032 Unique aggregates announced from the LACNIC address blocks: 4060 LACNIC Region origin ASes present in the Internet Routing Table: 612 LACNIC Region origin ASes announcing only one prefix: 195 LACNIC Region transit ASes present in the Internet Routing Table: 113 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18427904 Equivalent to 1 /8s, 25 /16s and 48 /24s Percentage of available LACNIC address space announced: 54.9 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: 1445 Total AfriNIC prefixes after maximum aggregation: 708 Prefixes being announced from the AfriNIC address blocks: 937 Unique aggregates announced from the AfriNIC address blocks: 741 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Region origin ASes announcing only one prefix: 27 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: 2210048 Equivalent to 0 /8s, 33 /16s and 185 /24s Percentage of available AfriNIC address space announced: 6.6 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 901 5101 182 CHINANET-BACKBONE 1221 773 1192 550 Telstra Pty Ltd 9583 719 52 67 Sify Limited 4766 584 3413 275 Korea Telecom (KIX) 4755 543 243 111 Videsh Sanchar Nigam Ltd. Aut 7545 488 86 71 TPG Internet Pty Ltd 17676 430 6508 72 Softbank BB Corp. 9443 369 77 75 Primus Telecommunications 9929 357 173 44 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 331 23 155 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 309 251 169 CNCGROUP IP network: China169 7474 298 268 209 SingTel Optus Pty Ltd 9498 284 82 52 BHARTI BT INTERNET LTD. 4802 279 47 164 Wantree Development 2764 260 238 198 AAPT Limited 703 257 279 211 UUNET - Commercial IP service 17974 243 65 13 PT TELEKOMUNIKASI INDONESIA 9800 242 386 69 CHINA UNICOM ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1482 6515 958 AT&T WorldNet Services 174 1138 5604 970 Cogent Communications 721 1119 21763 314 DLA Systems Automation Center 4323 1099 665 223 Time Warner Telecom 701 1006 8282 857 UUNET Technologies, Inc. 1239 916 2876 663 Sprint 6197 886 380 410 BellSouth Network Solutions, 2386 841 532 623 AT&T Data Communications Serv 18566 791 224 7 Covad Communications 209 651 3459 497 Qwest 20115 607 501 308 Charter Communications 3356 583 10836 437 Level 3 Communications, LLC 3561 545 2361 414 Savvis 852 532 1095 393 Telus Advanced Communications 27364 518 43 18 Armstrong Cable Services 3602 507 122 92 Sprint Canada, Inc. 5668 488 115 25 CenturyTel Internet Holdings, 22773 479 1188 21 Cox Communications, Inc. 6198 460 439 206 BellSouth Network Solutions, 7132 442 8654 379 SBC Internet Services RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 593 2002 485 UUNET - Commercial IP service 3320 304 2993 238 Deutsche Telekom AG 3301 296 1116 286 TeliaNet Sweden 8220 275 472 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 231 491 226 Song Networks 8708 228 251 209 Romania Data Systems S.A. 1257 199 727 175 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 6746 164 47 144 Dynamic Network Technologies, 8866 161 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 145 284 129 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 138 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 127 2305 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 265 16 7 NSS, S.A. 11172 223 99 54 Servicios Alestra S.A de C.V 6147 197 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 11664 157 19 23 Keytech SA 7303 147 68 21 Telecom Argentina Stet-France 6505 130 90 87 Global One Communicaoes Ltda 22047 123 96 6 VTR PUNTO NET S.A. 14117 119 8 4 Telefonica del Sur S.A. 11556 105 52 4 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 104 146 74 AVANTEL, S.A. 10481 101 40 7 Prima S.A. 13999 100 52 9 Mega Cable S.A. de C.V. 19169 96 6 17 Telconet 23216 89 24 22 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 22927 80 65 21 TELEFONICA DE ARGENTINA AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 269 635 225 The Internet Solution 5536 119 15 17 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 75 267 69 The Internetworking Company o 8452 64 20 5 TEDATA 24835 61 34 6 RAYA Telecom - Egypt 9129 44 3 3 UUNET Kenya 12455 42 7 4 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 25 1 4 AUCEGYPT Autonomous System 15475 23 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 2609 17 26 3 Tunisia BackBone AS 7460 17 3 4 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 Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65531 * 4323 1099 876 Time Warner Telecom 721 1119 805 DLA Systems Automation Center 18566 791 784 Covad Communications 4134 901 719 CHINANET-BACKBONE 9583 719 652 Sify Limited 27364 518 500 Armstrong Cable Services 6197 886 476 BellSouth Network Solutions, 5668 488 463 CenturyTel Internet Holdings, 22773 479 458 Cox Communications, Inc. 4755 543 432 Videsh Sanchar Nigam Ltd. Aut 7545 488 417 TPG Internet Pty Ltd 3602 507 415 Sprint Canada, Inc. 6467 441 406 E.Spire Communications, Inc. 17676 430 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 357 313 China Netcom Corp. 4766 584 309 Korea Telecom (KIX) 20115 607 299 Charter Communications 9443 369 294 Primus Telecommunications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 33771 UNALLOCATED 196.201.208.0/24 12491 IPPlanet 33771 UNALLOCATED 196.201.208.0/23 12455 Jambonet Autonomous 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 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 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 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 /12:68 /13:152 /14:309 /15:587 /16:8374 /17:2529 /18:4361 /19:10225 /20:10969 /21:8888 /22:12213 /23:13273 /24:87794 /25:288 /26:262 /27:141 /28:76 /29:37 /30:66 /31:0 /32:29 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 775 791 Covad Communications 6197 730 886 BellSouth Network Solutions, 7018 666 1482 AT&T WorldNet Services 2386 595 841 AT&T Data Communications Serv 9583 536 719 Sify Limited 4323 513 1099 Time Warner Telecom 27364 506 518 Armstrong Cable Services 5668 406 488 CenturyTel Internet Holdings, 4766 401 584 Korea Telecom (KIX) 1239 383 916 Sprint 702 365 593 UUNET - Commercial IP service 6198 335 460 BellSouth Network Solutions, 6467 322 441 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 7011 295 345 Citizens Utilities 6517 294 317 Yipes Communications, Inc. 9929 282 357 China Netcom Corp. 11456 273 320 Carolina Online, Inc. 15270 254 274 PaeTec.net -a division of Pae 3320 249 304 Deutsche Telekom AG Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:11 12:1519 13:1 15:9 16:2 17:3 18:4 20:4 24:872 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:42 59:25 60:20 61:751 62:585 63:1877 64:2678 65:2084 66:2774 67:550 68:515 69:996 70:92 71:5 72:145 80:560 81:538 82:391 83:240 84:155 85:174 86:1 128:141 129:158 130:89 131:280 132:36 133:1 134:150 135:40 136:191 137:66 138:172 139:56 140:191 141:106 142:139 143:131 144:167 145:32 146:280 147:104 148:292 149:169 150:97 151:63 152:107 153:87 154:5 155:143 156:77 157:92 158:167 159:174 160:75 161:55 162:203 163:84 164:205 165:176 166:154 167:232 168:417 169:139 170:313 171:8 172:2 192:5705 193:3173 194:2332 195:1553 196:649 198:3942 199:3278 200:4015 201:114 202:5521 203:6137 204:3816 205:2030 206:2455 207:2754 208:2083 209:3292 210:1696 211:835 212:1188 213:1286 214:271 215:32 216:3581 217:1147 218:189 219:108 220:361 221:194 222:91 End of report

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The Cidr Report
by cidr-report＠potaroo.net 22 Apr '05

22 Apr '05

This report has been generated at Fri Apr 22 21:44:56 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 15-04-05 156270 107049 16-04-05 156458 107074 17-04-05 156453 107094 18-04-05 156496 107190 19-04-05 156537 107298 20-04-05 156687 107243 21-04-05 156814 107312 22-04-05 156923 107451 AS Summary 19392 Number of ASes in routing system 7957 Number of ASes announcing only one prefix 1468 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90503424 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 22Apr05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 157106 107454 49652 31.6% All ASes AS4323 1094 226 868 79.3% TWTC - Time Warner Telecom AS18566 791 8 783 99.0% COVAD - Covad Communications AS4134 888 216 672 75.7% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1113 561 552 49.6% DLA-ASNBLOCK-AS - DoD Network Information Center AS7018 1468 948 520 35.4% ATT-INTERNET4 - AT&T WorldNet Services AS27364 518 22 496 95.8% ACS-INTERNET - Armstrong Cable Services AS22773 479 23 456 95.2% CCINET-2 - Cox Communications Inc. AS6197 886 468 418 47.2% BATI-ATL - BellSouth Network Solutions, Inc AS3602 507 141 366 72.2% SPRINT-CA-AS - Sprint Canada Inc. AS17676 430 77 353 82.1% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 346 44 302 87.3% CNCNET-CN China Netcom Corp. AS4766 570 277 293 51.4% KIXS-AS-KR Korea Telecom AS6478 387 101 286 73.9% ATT-INTERNET3 - AT&T WorldNet Services AS7545 488 217 271 55.5% TPG-INTERNET-AP TPG Internet Pty Ltd AS9583 718 450 268 37.3% SIFY-AS-IN Sify Limited AS6140 399 141 258 64.7% IMPSAT-USA - ImpSat AS14654 264 6 258 97.7% WAYPORT - Wayport AS9443 373 122 251 67.3% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 911 663 248 27.2% SPRINTLINK - Sprint AS23126 253 15 238 94.1% KMCTELCOM-DIA - KMC Telecom, Inc. AS15270 267 36 231 86.5% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS4755 450 220 230 51.1% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS6198 455 232 223 49.0% BATI-MIA - BellSouth Network Solutions, Inc AS5668 489 270 219 44.8% AS-5668 - CenturyTel Internet Holdings, Inc. AS2386 840 623 217 25.8% INS-AS - AT&T Data Communications Services AS9498 287 73 214 74.6% BBIL-AP BHARTI BT INTERNET LTD. AS11456 320 112 208 65.0% NUVOX - NuVox Communications, Inc. AS6167 274 78 196 71.5% CELLCO-PART - Cellco Partnership AS22909 349 157 192 55.0% DNEO-OSP1 - Comcast Cable Communications, Inc. AS6517 315 125 190 60.3% YIPESCOM - Yipes Communications, Inc. Total 16929 6652 10277 60.7% Top 30 total Possible Bogus Routes 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE - BridgeNet, LC 64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc 67.47.0.0/17 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.0.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.64.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.3.162.0/24 AS6083 AFRINIC African Network Information Center 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.118.0/23 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK 208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc 209.27.51.0/24 AS14132 INTERNETGATEWAY - Internet Gateway Inc. 209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.48.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.49.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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New IPv6 Address Block Allocated to the RIPE NCC
by Filiz Yilmaz 20 Apr '05

20 Apr '05

Dear Colleagues, The RIPE NCC received the IPv6 address range 2A00::/21 from the IANA in April 2005. You may wish to adjust any filters you have in place accordingly. More information on the IP space administered by the RIPE NCC can be found on our web site at: <https://www.ripe.net/ripe/docs/smallest-alloc-sizes.html> Regards, -- Filiz Yilmaz RIPE NCC

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Routing working groupp agenda and call for items
by Joao Damas 19 Apr '05

19 Apr '05

Dear all, with the new format of the RIPE Meeting at RIPE 50, the plenary (Monday-Wednesday) is the space where most presentation will take place, whereas the working groups are being geared towards being a space for discussion and development of work items leading to recommendations or problem statements. These may be derived from the talks taking place during the plenary and, if content is generated, would ideally result in RIPE Documents. With this in mind, following is the draft agenda for the routing working group at RIPE 50: - Administrativia: Minutes of previous meeting, Appointment of scribe, review of open actions, attendee list - Discussion space for the topics covered in talks: - Traffic engineering and the effect of business practices on the routing table - Route flap damping today in particular discussing the current RIPE Route flap damp(en)ing recommendations as described in RIPE Document 229 and - DDoS Detection & Mitigation Experience using Arbor/Peakflow & Cisco/Guard - Watch your Flows with NfSen and NFDUMP - Traffic Anomaly Detection, DDoS Mitigation, Coordinated Attack Fingerprinting should more time than available in the plenary be necessary for discussion At this time, also, suggestions for topics specific to routing are welcome for inclusion in the agenda Regards Joao Damas ISC

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Weekly Routing Table Report
by Routing Table Analysis 15 Apr '05

15 Apr '05

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 16 Apr, 2005 Analysis Summary ---------------- BGP routing table entries examined: 159923 Prefixes after maximum aggregation: 93150 Unique aggregates announced to Internet: 76898 Total ASes present in the Internet Routing Table: 19422 Origin-only ASes present in the Internet Routing Table: 16899 Origin ASes announcing only one prefix: 7905 Transit ASes present in the Internet Routing Table: 2523 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: 13 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1381478720 Equivalent to 82 /8s, 87 /16s and 177 /24s Percentage of available address space announced: 37.3 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74677 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 32657 Total APNIC prefixes after maximum aggregation: 15410 Prefixes being announced from the APNIC address blocks: 30588 Unique aggregates announced from the APNIC address blocks: 15419 APNIC Region origin ASes present in the Internet Routing Table: 2240 APNIC Region origin ASes announcing only one prefix: 652 APNIC Region transit ASes present in the Internet Routing Table: 340 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 181601920 Equivalent to 10 /8s, 211 /16s and 6 /24s Percentage of available APNIC address space announced: 67.4 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: 86956 Total ARIN prefixes after maximum aggregation: 53107 Prefixes being announced from the ARIN address blocks: 67784 Unique aggregates announced from the ARIN address blocks: 24901 ARIN Region origin ASes present in the Internet Routing Table: 9862 ARIN Region origin ASes announcing only one prefix: 3573 ARIN Region transit ASes present in the Internet Routing Table: 929 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 244720640 Equivalent to 14 /8s, 150 /16s and 36 /24s Percentage of available ARIN address space announced: 69.5 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: 30300 Total RIPE prefixes after maximum aggregation: 20946 Prefixes being announced from the RIPE address blocks: 27340 Unique aggregates announced from the RIPE address blocks: 18226 RIPE Region origin ASes present in the Internet Routing Table: 6543 RIPE Region origin ASes announcing only one prefix: 3457 RIPE Region transit ASes present in the Internet Routing Table: 1092 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 201347264 Equivalent to 12 /8s, 0 /16s and 80 /24s Percentage of available RIPE address space announced: 70.6 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: 8565 Total LACNIC prefixes after maximum aggregation: 2979 Prefixes being announced from the LACNIC address blocks: 6989 Unique aggregates announced from the LACNIC address blocks: 4043 LACNIC Region origin ASes present in the Internet Routing Table: 611 LACNIC Region origin ASes announcing only one prefix: 196 LACNIC Region transit ASes present in the Internet Routing Table: 115 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18093568 Equivalent to 1 /8s, 20 /16s and 22 /24s Percentage of available LACNIC address space announced: 53.9 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: 1428 Total AfriNIC prefixes after maximum aggregation: 708 Prefixes being announced from the AfriNIC address blocks: 929 Unique aggregates announced from the AfriNIC address blocks: 738 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Region origin ASes announcing only one prefix: 27 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: 2205952 Equivalent to 0 /8s, 33 /16s and 169 /24s Percentage of available AfriNIC address space announced: 6.6 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 901 4845 181 CHINANET-BACKBONE 1221 775 1193 552 Telstra Pty Ltd 9583 708 52 46 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 545 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 484 86 70 TPG Internet Pty Ltd 17676 430 6508 72 Softbank BB Corp. 9443 369 77 75 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 336 24 152 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 310 251 169 CNCGROUP IP network: China169 7474 296 268 213 SingTel Optus Pty Ltd 4802 279 47 164 Wantree Development 9498 268 82 52 BHARTI BT INTERNET LTD. 2764 260 238 198 AAPT Limited 703 256 279 210 UUNET - Commercial IP service 9800 238 386 69 CHINA UNICOM 17974 238 63 12 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1481 6530 963 AT&T WorldNet Services 174 1143 5589 974 Cogent Communications 721 1117 21747 313 DLA Systems Automation Center 4323 1093 647 220 Time Warner Telecom 701 1011 8282 859 UUNET Technologies, Inc. 1239 915 2877 662 Sprint 6197 892 384 414 BellSouth Network Solutions, 2386 842 532 623 AT&T Data Communications Serv 18566 789 224 7 Covad Communications 209 636 3442 492 Qwest 20115 604 499 313 Charter Communications 3356 588 10854 437 Level 3 Communications, LLC 3561 544 2369 417 Savvis 852 532 1095 394 Telus Advanced Communications 27364 517 43 18 Armstrong Cable Services 3602 507 121 92 Sprint Canada, Inc. 5668 489 115 25 CenturyTel Internet Holdings, 22773 477 1188 21 Cox Communications, Inc. 6198 458 380 215 BellSouth Network Solutions, 6467 438 143 35 E.Spire Communications, Inc. RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 598 2003 489 UUNET - Commercial IP service 3320 303 2993 237 Deutsche Telekom AG 3301 295 1116 285 TeliaNet Sweden 8220 278 472 271 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 227 251 208 Romania Data Systems S.A. 1257 198 695 174 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 174 1778 174 The JANET IP Service 3269 167 1472 73 TELECOM ITALIA 8866 164 21 12 Bulgarian Telecommunication C 6746 161 47 141 Dynamic Network Technologies, 719 159 340 101 LANLINK autonomous system 3300 149 184 84 AUCS Communications Services 5400 144 281 127 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 138 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 127 2305 115 BTnet UK Regional network LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 351 533 145 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 222 99 54 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 7303 157 68 21 Telecom Argentina Stet-France 11664 153 19 23 Keytech SA 6505 131 90 88 Global One Communicaoes Ltda 22047 122 96 6 VTR PUNTO NET S.A. 14117 119 8 4 Telefonica del Sur S.A. 6503 105 146 74 AVANTEL, S.A. 18822 104 7 16 TELEFONICA MANQUEHUE 13999 103 52 9 Mega Cable S.A. de C.V. 11556 99 49 5 Cable-Wireless Panama 19169 95 6 16 Telconet 23216 89 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 118 15 17 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 75 267 69 The Internetworking Company o 8452 64 20 5 TEDATA 24835 59 34 6 RAYA Telecom - Egypt 9129 43 3 3 UUNET Kenya 12455 43 7 4 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 24 1 4 AUCEGYPT Autonomous System 15475 23 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 7460 17 3 4 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 15808 16 1 1 Communication Solutions Ltd i 21491 16 1 3 UTL On-line is RF broadband I 15706 15 4 2 Sudatel Internet Exchange Aut Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65531 * 4323 1093 873 Time Warner Telecom 721 1117 804 DLA Systems Automation Center 18566 789 782 Covad Communications 4134 901 720 CHINANET-BACKBONE 9583 708 662 Sify Limited 27364 517 499 Armstrong Cable Services 6197 892 478 BellSouth Network Solutions, 5668 489 464 CenturyTel Internet Holdings, 22773 477 456 Cox Communications, Inc. 4755 545 433 Videsh Sanchar Nigam Ltd. Aut 3602 507 415 Sprint Canada, Inc. 7545 484 414 TPG Internet Pty Ltd 6467 438 403 E.Spire Communications, Inc. 17676 430 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 358 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 9443 369 294 Primus Telecommunications 20115 604 291 Charter Communications List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 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 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 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 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 /12:67 /13:152 /14:308 /15:578 /16:8351 /17:2518 /18:4313 /19:10199 /20:10936 /21:8802 /22:12150 /23:13219 /24:87403 /25:285 /26:263 /27:139 /28:67 /29:38 /30:63 /31:0 /32:28 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 773 789 Covad Communications 6197 733 892 BellSouth Network Solutions, 7018 662 1481 AT&T WorldNet Services 2386 597 842 AT&T Data Communications Serv 9583 527 708 Sify Limited 4323 511 1093 Time Warner Telecom 27364 505 517 Armstrong Cable Services 5668 407 489 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 383 915 Sprint 702 365 598 UUNET - Commercial IP service 6198 336 458 BellSouth Network Solutions, 6467 319 438 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 6517 294 317 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 271 318 Carolina Online, Inc. 15270 253 273 PaeTec.net -a division of Pae 174 249 1143 Cogent Communications Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:11 12:1522 13:1 15:9 16:2 17:3 18:4 20:4 24:814 32:64 33:4 38:106 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:42 59:24 60:19 61:741 62:581 63:1890 64:2670 65:2079 66:2770 67:536 68:515 69:977 70:89 71:6 72:134 80:534 81:512 82:380 83:234 84:142 85:153 128:140 129:157 130:88 131:281 132:35 133:1 134:149 135:41 136:191 137:66 138:172 139:55 140:191 141:106 142:138 143:130 144:173 145:32 146:280 147:103 148:290 149:169 150:98 151:63 152:107 153:87 154:4 155:143 156:76 157:89 158:162 159:172 160:73 161:60 162:200 163:86 164:205 165:176 166:155 167:232 168:417 169:139 170:309 171:8 172:2 192:5676 193:3149 194:2332 195:1556 196:644 198:3936 199:3276 200:4008 201:114 202:5460 203:6148 204:3818 205:2030 206:2448 207:2748 208:2091 209:3282 210:1694 211:840 212:1185 213:1273 214:270 215:31 216:3582 217:1154 218:187 219:105 220:373 221:190 222:85 End of report

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The Cidr Report
by cidr-report＠potaroo.net 15 Apr '05

15 Apr '05

This report has been generated at Fri Apr 15 21:48:05 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 08-04-05 155649 106425 09-04-05 155822 106490 10-04-05 155876 106556 11-04-05 155931 106518 12-04-05 155938 106693 13-04-05 156063 106855 14-04-05 156161 106970 15-04-05 156270 107016 AS Summary 19324 Number of ASes in routing system 7911 Number of ASes announcing only one prefix 1470 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90489600 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 15Apr05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 156432 106991 49441 31.6% All ASes AS4323 1090 225 865 79.4% TWTC - Time Warner Telecom AS18566 789 8 781 99.0% COVAD - Covad Communications AS4134 887 216 671 75.6% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1118 563 555 49.6% DLA-ASNBLOCK-AS - DoD Network Information Center AS7018 1470 953 517 35.2% ATT-INTERNET4 - AT&T WorldNet Services AS27364 517 22 495 95.7% ACS-INTERNET - Armstrong Cable Services AS22773 477 23 454 95.2% CCINET-2 - Cox Communications Inc. AS6197 887 469 418 47.1% BATI-ATL - BellSouth Network Solutions, Inc AS3602 507 141 366 72.2% SPRINT-CA-AS - Sprint Canada Inc. AS17676 430 77 353 82.1% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 347 45 302 87.0% CNCNET-CN China Netcom Corp. AS4766 572 277 295 51.6% KIXS-AS-KR Korea Telecom AS6478 383 96 287 74.9% ATT-INTERNET3 - AT&T WorldNet Services AS9583 708 448 260 36.7% SIFY-AS-IN Sify Limited AS6140 399 142 257 64.4% IMPSAT-USA - ImpSat AS14654 263 6 257 97.7% WAYPORT - Wayport AS9443 373 122 251 67.3% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 911 663 248 27.2% SPRINTLINK - Sprint AS7545 484 250 234 48.3% TPG-INTERNET-AP TPG Internet Pty Ltd AS4755 451 219 232 51.4% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS23126 252 21 231 91.7% KMCTELCOM-DIA - KMC Telecom, Inc. AS15270 266 37 229 86.1% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS6198 457 232 225 49.2% BATI-MIA - BellSouth Network Solutions, Inc AS2386 842 624 218 25.9% INS-AS - AT&T Data Communications Services AS5668 489 282 207 42.3% AS-5668 - CenturyTel Internet Holdings, Inc. AS11456 318 111 207 65.1% NUVOX - NuVox Communications, Inc. AS9498 270 72 198 73.3% BBIL-AP BHARTI BT INTERNET LTD. AS22909 348 151 197 56.6% DNEO-OSP1 - Comcast Cable Communications, Inc. AS6167 272 78 194 71.3% CELLCO-PART - Cellco Partnership AS6147 205 20 185 90.2% Telefonica del Peru S.A.A. Total 16782 6593 10189 60.7% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI - Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE - BridgeNet, LC 64.57.160.0/19 AS3561 SAVVIS - Savvis 64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc 67.47.0.0/17 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.0.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.64.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.2.96.0/20 AS2905 UUNET-ZA uunet south africa 196.192.0.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.12.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.32.0/24 AS5511 OPENTRANSIT France Telecom 196.192.33.0/24 AS5511 OPENTRANSIT France Telecom 196.192.34.0/24 AS5511 OPENTRANSIT France Telecom 196.192.35.0/24 AS5511 OPENTRANSIT France Telecom 196.192.36.0/24 AS5511 OPENTRANSIT France Telecom 196.192.37.0/24 AS22351 INTELSAT Intelsat Global BGP Routing Policy 196.192.38.0/24 AS5511 OPENTRANSIT France Telecom 196.192.39.0/24 AS5511 OPENTRANSIT France Telecom 196.192.40.0/24 AS5511 OPENTRANSIT France Telecom 196.192.41.0/24 AS22351 INTELSAT Intelsat Global BGP Routing Policy 196.192.45.0/24 AS5511 OPENTRANSIT France Telecom 196.192.46.0/24 AS5511 OPENTRANSIT France Telecom 196.192.47.0/24 AS5511 OPENTRANSIT France Telecom 196.192.64.0/21 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.80.0/24 AS30999 196.192.96.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS4748 RESOLINK-AS Resources Linke Network Limited 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.123.0.0/19 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.2.0/24 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.8.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.16.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.99.142.0/24 AS9826 ILINK-HK-AP iLink.net Ltd 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.53.224.0/19 AS13576 SDNET - SOUTH DAKOTA NETWORK 208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc 209.27.51.0/24 AS14132 INTERNETGATEWAY - Internet Gateway Inc. 209.134.0.0/18 AS8082 WORLDSITE - Worldsite Networks 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.48.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.49.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.82.160.0/20 AS13823 CALYX-USA - Calyx Internet Access Corp. 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Weekly Routing Table Report
by Routing Table Analysis 08 Apr '05

08 Apr '05

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 09 Apr, 2005 Analysis Summary ---------------- BGP routing table entries examined: 139674 Prefixes after maximum aggregation: 83474 Unique aggregates announced to Internet: 67116 Total ASes present in the Internet Routing Table: 17729 Origin-only ASes present in the Internet Routing Table: 15381 Origin ASes announcing only one prefix: 7282 Transit ASes present in the Internet Routing Table: 2348 Transit-only ASes present in the Internet Routing Table: 194 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: 38 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1212269440 Equivalent to 72 /8s, 65 /16s and 195 /24s Percentage of available address space announced: 32.7 Percentage of allocated address space announced: 51.3 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 61623 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 27665 Total APNIC prefixes after maximum aggregation: 13807 Prefixes being announced from the APNIC address blocks: 25625 Unique aggregates announced from the APNIC address blocks: 13601 APNIC Region origin ASes present in the Internet Routing Table: 2170 APNIC Region origin ASes announcing only one prefix: 672 APNIC Region transit ASes present in the Internet Routing Table: 331 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 100659328 Equivalent to 5 /8s, 255 /16s and 240 /24s Percentage of available APNIC address space announced: 37.4 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: 79734 Total ARIN prefixes after maximum aggregation: 49337 Prefixes being announced from the ARIN address blocks: 61099 Unique aggregates announced from the ARIN address blocks: 21894 ARIN Region origin ASes present in the Internet Routing Table: 9396 ARIN Region origin ASes announcing only one prefix: 3492 ARIN Region transit ASes present in the Internet Routing Table: 886 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 229050368 Equivalent to 13 /8s, 167 /16s and 8 /24s Percentage of available ARIN address space announced: 65.0 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 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: 22768 Total RIPE prefixes after maximum aggregation: 16764 Prefixes being announced from the RIPE address blocks: 19187 Unique aggregates announced from the RIPE address blocks: 13327 RIPE Region origin ASes present in the Internet Routing Table: 5289 RIPE Region origin ASes announcing only one prefix: 2902 RIPE Region transit ASes present in the Internet Routing Table: 966 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 154207424 Equivalent to 9 /8s, 49 /16s and 4 /24s Percentage of available RIPE address space announced: 54.1 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: 8378 Total LACNIC prefixes after maximum aggregation: 2926 Prefixes being announced from the LACNIC address blocks: 6986 Unique aggregates announced from the LACNIC address blocks: 4018 LACNIC Region origin ASes present in the Internet Routing Table: 609 LACNIC Region origin ASes announcing only one prefix: 187 LACNIC Region transit ASes present in the Internet Routing Table: 111 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 18041856 Equivalent to 1 /8s, 19 /16s and 76 /24s Percentage of available LACNIC address space announced: 53.8 LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7 Emerging AfriNIC Region Analysis Summary ---------------------------------------- Prefixes being announced by AfriNIC Region ASes: 1087 Total AfriNIC prefixes after maximum aggregation: 640 Prefixes being announced from the AfriNIC address blocks: 916 Unique aggregates announced from the AfriNIC address blocks: 732 AfriNIC Region origin ASes present in the Internet Routing Table: 84 AfriNIC Region origin ASes announcing only one prefix: 29 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.4 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2198272 Equivalent to 0 /8s, 33 /16s and 139 /24s Percentage of available AfriNIC address space announced: 13.1 AfriNIC AS Blocks ERX transfers AfriNIC Address Blocks 196/8 APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 1221 781 1193 555 Telstra Pty Ltd 9583 584 44 11 Sify Limited 4755 488 211 112 Videsh Sanchar Nigam Ltd. Aut 4134 430 1943 104 CHINANET-BACKBONE 9443 370 77 76 Primus Telecommunications 4766 366 1699 151 Korea Telecom (KIX) 7545 365 54 66 TPG Internet Pty Ltd 2907 348 1839 322 SINET Japan 17557 334 24 151 Pakistan Telecom 10036 308 28 281 C&M Communication Co. Ltd. 7474 296 268 214 SingTel Optus Pty Ltd 4802 282 47 166 Wantree Development 9498 261 82 53 BHARTI BT INTERNET LTD. 2764 251 238 200 AAPT Limited 703 250 273 205 UUNET - Commercial IP service 9929 246 94 19 China Netcom Corp. 4808 231 168 129 CNCGROUP IP network: China169 18302 218 34 128 SK Global co., Ltd 17488 213 15 11 Hathway IP Over Cable Interne 17974 193 47 11 PT TELEKOMUNIKASI INDONESIA ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 7018 1408 6477 922 AT&T WorldNet Services 174 1065 5544 905 Cogent Communications 721 1019 15619 312 DLA Systems Automation Center 701 966 8209 821 UUNET Technologies, Inc. 4323 961 635 212 Time Warner Telecom 1239 874 2864 627 Sprint 6197 838 365 384 BellSouth Network Solutions, 2386 817 528 616 AT&T Data Communications Serv 18566 788 224 7 Covad Communications 209 624 3372 479 Qwest 20115 599 495 310 Charter Communications 852 534 1069 393 Telus Advanced Communications 3356 524 10745 394 Level 3 Communications, LLC 3602 507 119 92 Sprint Canada, Inc. 3561 506 2199 384 Savvis 27364 504 43 18 Armstrong Cable Services 5668 482 115 25 CenturyTel Internet Holdings, 22773 471 1180 20 Cox Communications, Inc. 7132 427 8385 370 SBC Internet Services 6198 419 372 193 BellSouth Network Solutions, RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 702 524 1674 447 UUNET - Commercial IP service 3320 293 2057 229 Deutsche Telekom AG 3301 286 902 276 TeliaNet Sweden 680 252 2025 237 DFN-IP service G-WiN 8220 239 309 235 COLT Telecommunications 3246 206 388 201 Song Networks 8708 194 243 177 Romania Data Systems S.A. 786 174 1776 174 The JANET IP Service 5515 174 743 124 Sonera Solution Autonomous Sy 1257 172 587 163 SWIPnet Swedish IP Network 719 153 288 96 LANLINK autonomous system 3300 148 168 84 AUCS Communications Services 6746 139 44 121 Dynamic Network Technologies, 3269 138 1273 58 TELECOM ITALIA 25186 136 137 94 France Telecom Transpac's Tra 5400 126 236 112 BT Ignite European Backbone 2856 115 1948 104 BTnet UK Regional network 3215 114 963 68 France Telecom Transpac 3303 106 471 101 Swisscom Ltd 5511 106 157 76 France Telecom LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 349 527 145 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 216 99 52 Servicios Alestra S.A de C.V 6147 204 100 22 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 7303 156 68 25 Telecom Argentina Stet-France 11664 155 19 23 Keytech SA 22047 122 96 6 VTR PUNTO NET S.A. 6503 106 146 75 AVANTEL, S.A. 6505 105 84 68 Global One Communicaoes Ltda 13999 103 52 9 Mega Cable S.A. de C.V. 18822 103 6 15 TELEFONICA MANQUEHUE 11556 99 49 5 Cable-Wireless Panama 19169 95 6 16 Telconet 14117 86 6 3 Telefonica del Sur S.A. 5639 84 12 9 Telecommunications Services o 10481 82 32 7 Prima S.A. 4270 79 18 9 Red de Interconexion Universi 22927 79 65 20 TELEFONICA DE ARGENTINA 23216 78 23 15 RAMtelecom Telecomunicaciones AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 3741 268 635 225 The Internet Solution 2018 90 295 87 Tertiary Education Network 5536 85 13 16 Internet Egypt Network 2905 67 264 61 The Internetworking Company o 8452 54 16 3 TEDATA 24835 53 28 4 RAYA Telecom - Egypt 5713 35 141 28 Telkom SA Ltd 6713 29 46 8 Itissalat Al-MAGHRIB 9129 27 2 2 UUNET Kenya 12455 24 5 4 Jambonet Autonomous system 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 7460 17 3 4 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 15808 16 1 1 Communication Solutions Ltd i 21491 14 1 1 UTL On-line is RF broadband I 17148 13 1 7 First National Bank 11845 12 9 11 Data Pro Business Online 17400 12 1 1 Pacomm-LDA 21280 12 1 2 Swift Global Kenya Ltd.Is an Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 0 0 65531 * 18566 788 781 Covad Communications 4323 961 749 Time Warner Telecom 721 1019 707 DLA Systems Automation Center 9583 584 573 Sify Limited 27364 504 486 Armstrong Cable Services 5668 482 457 CenturyTel Internet Holdings, 6197 838 454 BellSouth Network Solutions, 22773 471 451 Cox Communications, Inc. 3602 507 415 Sprint Canada, Inc. 4755 488 376 Videsh Sanchar Nigam Ltd. Aut 4134 430 326 CHINANET-BACKBONE 6140 395 324 ImpSat 6467 345 313 E.Spire Communications, Inc. 7545 365 299 TPG Internet Pty Ltd 9443 370 294 Primus Telecommunications 20115 599 289 Charter Communications 6478 378 288 AT&T Worldnet Services 376 391 276 Reseau Interordinateurs Scien 16814 266 259 NSS, S.A. List of Unregistered ASNs (Global) ---------------------------------- Bad AS Designation Network Transit AS Description 35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication 35884 UNALLOCATED 38.118.171.0/24 10912 InterNAP Network Ser 35894 UNALLOCATED 63.118.207.0/24 6128 Cablevision Systems 35884 UNALLOCATED 64.74.164.0/24 10912 InterNAP Network Ser 35884 UNALLOCATED 64.74.165.0/24 10912 InterNAP Network Ser 35884 UNALLOCATED 64.74.166.0/24 10912 InterNAP Network Ser 35892 UNALLOCATED 64.124.52.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.105.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.106.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.110.0/24 6461 AboveNet Communicati 35890 UNALLOCATED 64.193.55.0/24 209 Qwest 35868 UNALLOCATED 65.88.163.192/26 6395 Broadwing Communicat 35871 UNALLOCATED 66.7.178.0/23 6517 Yipes Communications 35868 UNALLOCATED 68.143.179.64/26 6395 Broadwing Communicat 33507 UNALLOCATED 70.183.41.0/24 15218 COX Communications 35895 UNALLOCATED 72.5.143.0/24 10910 InterNAP Network Ser 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 35875 UNALLOCATED 204.117.76.0/24 1239 Sprint 35892 UNALLOCATED 208.184.1.0/24 6461 AboveNet Communicati 35850 UNALLOCATED 209.139.6.0/24 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.22.0/23 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.56.0/22 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.108.0/23 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.110.0/24 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.180.0/24 3356 Level 3 Communicatio 35892 UNALLOCATED 209.249.93.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 209.249.94.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 209.249.95.0/24 6461 AboveNet Communicati 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 /8:17 /9:2 /10:8 /11:13 /12:60 /13:127 /14:260 /15:472 /16:7497 /17:2028 /18:3414 /19:7717 /20:8814 /21:7649 /22:10537 /23:11751 /24:78503 /25:252 /26:228 /27:130 /28:68 /29:37 /30:61 /31:0 /32:29 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 18566 772 788 Covad Communications 6197 683 838 BellSouth Network Solutions, 7018 610 1408 AT&T WorldNet Services 2386 572 817 AT&T Data Communications Serv 27364 491 504 Armstrong Cable Services 9583 406 584 Sify Limited 4323 402 961 Time Warner Telecom 5668 402 482 CenturyTel Internet Holdings, 1239 348 874 Sprint 702 327 524 UUNET - Commercial IP service 10036 308 308 C&M Communication Co. Ltd. 6198 300 419 BellSouth Network Solutions, 6517 288 311 Yipes Communications, Inc. 7011 270 318 Citizens Utilities 15270 251 269 PaeTec.net -a division of Pae 3320 245 293 Deutsche Telekom AG 20115 244 599 Charter Communications 23126 239 250 KMC Telecom, Inc 22773 236 471 Cox Communications, Inc. 11456 228 268 Carolina Online, Inc. Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:4 8:11 10:6 12:1516 13:1 15:9 16:2 17:3 18:4 20:4 24:794 28:2 31:1 32:64 33:4 38:104 40:53 44:7 47:2 50:1 52:11 54:1 55:3 56:3 57:23 58:37 59:22 60:17 61:738 62:574 63:1879 64:2648 65:2079 66:2734 67:519 68:508 69:961 70:83 71:6 72:128 80:535 81:528 82:369 83:225 84:137 85:160 128:141 129:160 130:89 131:281 132:33 133:1 134:145 135:41 136:191 137:67 138:164 139:56 140:193 141:103 142:137 143:130 144:172 145:32 146:272 147:102 148:293 149:169 150:97 151:63 152:107 153:87 154:4 155:144 156:69 157:89 158:167 159:172 160:73 161:60 162:199 163:83 164:203 165:159 166:154 167:228 168:416 169:137 170:311 171:8 172:1 192:5674 193:3146 194:2326 195:1536 196:638 198:3934 199:3268 200:4010 201:113 202:5443 203:6136 204:3818 205:2006 206:2439 207:2731 208:2075 209:3278 210:1675 211:759 End of report

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The Cidr Report
by cidr-report＠potaroo.net 08 Apr '05

08 Apr '05

This report has been generated at Fri Apr 8 21:44:57 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 01-04-05 155627 106634 02-04-05 155490 106620 03-04-05 155470 106596 04-04-05 155479 106765 05-04-05 155734 106188 06-04-05 155419 106297 07-04-05 155608 106264 08-04-05 155649 106385 AS Summary 19246 Number of ASes in routing system 7854 Number of ASes announcing only one prefix 1461 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90489856 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 08Apr05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 155786 106324 49462 31.7% All ASes AS4323 1089 225 864 79.3% TWTC - Time Warner Telecom AS18566 788 8 780 99.0% COVAD - Covad Communications AS4134 885 213 672 75.9% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1119 564 555 49.6% DLA-ASNBLOCK-AS - DoD Network Information Center AS7018 1461 954 507 34.7% ATT-INTERNET4 - AT&T WorldNet Services AS27364 504 22 482 95.6% ACS-INTERNET - Armstrong Cable Services AS22773 474 23 451 95.1% CCINET-2 - Cox Communications Inc. AS6197 882 469 413 46.8% BATI-ATL - BellSouth Network Solutions, Inc AS3602 508 142 366 72.0% SPRINT-CA-AS - Sprint Canada Inc. AS17676 427 77 350 82.0% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS9929 347 45 302 87.0% CNCNET-CN China Netcom Corp. AS4766 572 277 295 51.6% KIXS-AS-KR Korea Telecom AS6478 378 90 288 76.2% ATT-INTERNET3 - AT&T WorldNet Services AS9583 684 420 264 38.6% SIFY-AS-IN Sify Limited AS14654 263 6 257 97.7% WAYPORT - Wayport AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 911 662 249 27.3% SPRINTLINK - Sprint AS6140 383 138 245 64.0% IMPSAT-USA - ImpSat AS4755 481 238 243 50.5% VSNL-AS Videsh Sanchar Nigam Ltd. Autonomous System AS23126 251 13 238 94.8% KMCTELCOM-DIA - KMC Telecom, Inc. AS7545 479 246 233 48.6% TPG-INTERNET-AP TPG Internet Pty Ltd AS15270 263 35 228 86.7% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS6198 457 232 225 49.2% BATI-MIA - BellSouth Network Solutions, Inc AS2386 842 624 218 25.9% INS-AS - AT&T Data Communications Services AS5668 482 267 215 44.6% AS-5668 - CenturyTel Internet Holdings, Inc. AS11456 311 106 205 65.9% NUVOX - NuVox Communications, Inc. AS9498 263 60 203 77.2% BBIL-AP BHARTI BT INTERNET LTD. AS22909 345 150 195 56.5% DNEO-OSP1 - Comcast Cable Communications, Inc. AS6167 272 78 194 71.3% CELLCO-PART - Cellco Partnership AS6517 311 122 189 60.8% YIPESCOM - Yipes Communications, Inc. Total 16806 6629 10177 60.6% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI - Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE - BridgeNet, LC 64.20.32.0/20 AS21698 NEBRIX-CA - Nebrix Communications Inc. 64.57.160.0/19 AS3561 SAVVIS - Savvis 64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.209.192.0/19 AS3561 SAVVIS - Savvis 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc 67.47.0.0/17 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.0.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.64.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 172.122.28.0/24 AS210 WEST-NET-WEST - Utah Education Network 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.192.0.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.12.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.32.0/24 AS5511 OPENTRANSIT France Telecom 196.192.33.0/24 AS5511 OPENTRANSIT France Telecom 196.192.34.0/24 AS5511 OPENTRANSIT France Telecom 196.192.35.0/24 AS5511 OPENTRANSIT France Telecom 196.192.36.0/24 AS5511 OPENTRANSIT France Telecom 196.192.37.0/24 AS5511 OPENTRANSIT France Telecom 196.192.38.0/24 AS5511 OPENTRANSIT France Telecom 196.192.39.0/24 AS5511 OPENTRANSIT France Telecom 196.192.40.0/24 AS5511 OPENTRANSIT France Telecom 196.192.45.0/24 AS5511 OPENTRANSIT France Telecom 196.192.46.0/24 AS5511 OPENTRANSIT France Telecom 196.192.47.0/24 AS5511 OPENTRANSIT France Telecom 196.192.64.0/21 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.96.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.123.0.0/19 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.2.0/24 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.8.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.16.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc 209.27.51.0/24 AS14132 INTERNETGATEWAY - Internet Gateway Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.48.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.49.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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Weekly Routing Table Report
by Routing Table Analysis 01 Apr '05

01 Apr '05

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 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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The Cidr Report
by cidr-report＠potaroo.net 01 Apr '05

01 Apr '05

This report has been generated at Fri Apr 1 21:44:47 2005 AEST. The report analyses the BGP Routing Table of an AS4637 (Reach) router and generates a report on aggregation potential within the table. Check http://www.cidr-report.org/as4637 for a current version of this report. Recent Table History Date Prefixes CIDR Agg 26-03-05 154810 106377 27-03-05 155148 106497 27-03-05 155155 106485 28-03-05 155145 106544 29-03-05 155203 106651 30-03-05 155573 106553 31-03-05 155520 106583 01-04-05 155627 106572 AS Summary 19174 Number of ASes in routing system 7831 Number of ASes announcing only one prefix 1470 Largest number of prefixes announced by an AS AS7018 : ATT-INTERNET4 - AT&T WorldNet Services 90490368 Largest address span announced by an AS (/32s) AS721 : DLA-ASNBLOCK-AS - DoD Network Information Center Aggregation Summary The algorithm used in this report proposes aggregation only when there is a precise match using the AS path, so as to preserve traffic transit policies. Aggregation is also proposed across non-advertised address space ('holes'). --- 01Apr05 --- ASnum NetsNow NetsAggr NetGain % Gain Description Table 155550 106615 48935 31.5% All ASes AS4323 1086 225 861 79.3% TWTC - Time Warner Telecom AS18566 780 7 773 99.1% COVAD - Covad Communications AS4134 882 212 670 76.0% CHINANET-BACKBONE No.31,Jin-rong Street AS721 1121 566 555 49.5% DLA-ASNBLOCK-AS - DoD Network Information Center AS22773 475 23 452 95.2% CCINET-2 - Cox Communications Inc. AS27364 465 22 443 95.3% ACS-INTERNET - Armstrong Cable Services AS6197 880 467 413 46.9% BATI-ATL - BellSouth Network Solutions, Inc AS7018 1470 1084 386 26.3% ATT-INTERNET4 - AT&T WorldNet Services AS3602 507 144 363 71.6% SPRINT-CA-AS - Sprint Canada Inc. AS17676 427 77 350 82.0% JPNIC-JP-ASN-BLOCK Japan Network Information Center AS6478 515 167 348 67.6% ATT-INTERNET3 - AT&T WorldNet Services AS9929 347 45 302 87.0% CNCNET-CN China Netcom Corp. AS4766 572 277 295 51.6% KIXS-AS-KR Korea Telecom AS14654 262 6 256 97.7% WAYPORT - Wayport AS9443 374 123 251 67.1% INTERNETPRIMUS-AS-AP Primus Telecommunications AS1239 904 656 248 27.4% SPRINTLINK - Sprint AS6140 383 137 246 64.2% IMPSAT-USA - ImpSat AS7545 466 226 240 51.5% TPG-INTERNET-AP TPG Internet Pty Ltd AS9583 663 428 235 35.4% SIFY-AS-IN Sify Limited AS4355 289 60 229 79.2% ERMS-EARTHLNK - EARTHLINK, INC AS15270 262 34 228 87.0% AS-PAETEC-NET - PaeTec.net -a division of PaeTecCommunications, Inc. AS6198 459 232 227 49.5% BATI-MIA - BellSouth Network Solutions, Inc AS5668 477 265 212 44.4% AS-5668 - CenturyTel Internet Holdings, Inc. AS11456 311 106 205 65.9% NUVOX - NuVox Communications, Inc. AS9498 263 60 203 77.2% BBIL-AP BHARTI BT INTERNET LTD. AS2386 835 633 202 24.2% INS-AS - AT&T Data Communications Services AS6167 274 78 196 71.5% CELLCO-PART - Cellco Partnership AS6517 311 124 187 60.1% YIPESCOM - Yipes Communications, Inc. AS6147 205 20 185 90.2% Telefonica del Peru S.A.A. AS16852 239 66 173 72.4% FOCAL-CHICAGO - Focal Data Communications of Illinois Total 16504 6570 9934 60.2% Top 30 total Possible Bogus Routes 24.138.80.0/20 AS11260 ANDARA-HSI - Andara High Speed Internet c/o Halifax Cable Ltd. 24.246.0.0/17 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 24.246.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.17.32.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.33.0/24 AS5024 BRIDGE - BridgeNet, LC 64.17.37.0/24 AS5024 BRIDGE - BridgeNet, LC 64.57.160.0/19 AS3561 SAVVIS - Savvis 64.127.0.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 64.209.192.0/19 AS3561 SAVVIS - Savvis 66.37.96.0/20 AS3764 IA-HOU-AS - Internet America, Inc. 66.164.232.0/24 AS6197 BATI-ATL - BellSouth Network Solutions, Inc 67.47.0.0/17 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.0.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 67.47.64.0/18 AS4765 WORLDNET-AS World Net & Services Co., Ltd. 172.32.0.0/24 AS7011 CITLINK - Citizens Utilities 192.30.93.0/24 AS17757 HPAUS-AP HP Australia 192.30.94.0/24 AS17757 HPAUS-AP HP Australia 192.40.105.0/24 AS5515 SONERA-GLOBAL-IP Sonera Solution Autonomous System 192.43.230.0/24 AS7575 AARNET-AS-AP Australian Academic and Reasearch Network (AARNet) 192.44.0.0/19 AS702 AS702 MCI EMEA - Commercial IP service provider in Europe 192.44.0.0/24 AS5501 FRAUNHOFER-CLUSTER-BW Fraunhofer Gesellschaft 192.70.164.0/24 AS25689 NRCNET-AS - National Research Council of Canada 192.81.182.0/24 AS719 ELISA-AS Elisa Oyj 192.81.183.0/24 AS719 ELISA-AS Elisa Oyj 192.81.184.0/24 AS719 ELISA-AS Elisa Oyj 192.119.135.0/24 AS270 PSCNI-AS - National Aeronautics and Space Administration 192.124.252.0/22 AS680 DFN-IP service G-WiN 192.133.6.0/24 AS4004 GLOBALONE-EQUANT-UK Equant UK & Greece Autonomous System 192.135.50.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 192.136.53.0/24 AS8346 SONATEL-AS Autonomous System 192.153.144.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.172.0.0/19 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.187.16.0/21 AS766 REDIRIS RedIRIS Autonomous System 192.187.24.0/23 AS766 REDIRIS RedIRIS Autonomous System 192.188.208.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 192.200.100.0/24 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 196.2.95.0/24 AS8668 TELONE-AS TelOne Zimbabwe P/L 196.192.0.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.12.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.32.0/24 AS5511 OPENTRANSIT France Telecom 196.192.33.0/24 AS5511 OPENTRANSIT France Telecom 196.192.34.0/24 AS5511 OPENTRANSIT France Telecom 196.192.35.0/24 AS5511 OPENTRANSIT France Telecom 196.192.36.0/24 AS5511 OPENTRANSIT France Telecom 196.192.37.0/24 AS5511 OPENTRANSIT France Telecom 196.192.38.0/24 AS5511 OPENTRANSIT France Telecom 196.192.39.0/24 AS5511 OPENTRANSIT France Telecom 196.192.40.0/24 AS5511 OPENTRANSIT France Telecom 196.192.45.0/24 AS5511 OPENTRANSIT France Telecom 196.192.46.0/24 AS5511 OPENTRANSIT France Telecom 196.192.47.0/24 AS5511 OPENTRANSIT France Telecom 196.192.64.0/21 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 196.192.96.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 198.23.26.0/24 AS4390 BELLATLANTIC-COM - Bell Atlantic, Inc. 198.97.72.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.80.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.88.0/24 AS89 NUSC-CSTLNET-AS - Naval Underwater Systems Center 198.97.240.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.97.247.0/24 AS3475 LANT-AFLOAT - Department of the Navy 198.101.4.0/22 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 198.136.32.0/20 AS19329 MCNET - Martin County Board of County Commissioners 198.144.32.0/19 AS3998 CITY-NET - CityNet, Inc. 198.160.171.0/24 AS7046 UUNET-CUSTOMER - UUNET Technologies, Inc. 198.161.87.0/24 AS6539 GROUPTLCOM - GT Group Telecom Services Corp. 198.163.155.0/24 AS684 MBNET-AS - Manitoba Regional Network 198.167.0.0/16 AS7456 INTERHOP - Interhop Network SERVICES Inc. 198.167.163.0/24 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 198.168.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 198.169.0.0/16 AS803 SASKTEL - SaskTel 198.232.133.0/24 AS23075 SKOTOS-AS - Skotos Tech, Inc 199.10.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.60.0.0/20 AS271 BCNET-AS - University of British Columbia 199.96.44.0/23 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.96.46.0/24 AS19092 360NETWORKS-US - 360Networks (USA) Inc. 199.114.0.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.128.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.130.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.132.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.134.0/24 AS3541 ITSDN-U4 - DISA/UNRRA 199.114.136.0/24 AS27044 DDN-ASNBLK1 - DoD Network Information Center 199.114.138.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.140.0/24 AS3544 ITSDN-U7 - DISA/UNRRA 199.114.142.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.144.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.148.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.150.0/24 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.114.152.0/24 AS27033 DDN-ASNBLK1 - DoD Network Information Center 199.114.154.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.114.156.0/24 AS27034 DDN-ASNBLK1 - DoD Network Information Center 199.114.160.0/24 AS1733 CENTAF-SWA - AF DDN PMO 199.120.32.0/19 AS16582 NEXTLEVELINTERNET - NEXTLEVEL INTERNET, INC. 199.121.0.0/16 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.0.0/18 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.16.0/20 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.123.80.0/21 AS721 DLA-ASNBLOCK-AS - DoD Network Information Center 199.189.32.0/19 AS7332 IQUEST-AS - IQuest Internet 199.202.0.0/16 AS701 ALTERNET-AS - UUNET Technologies, Inc. 202.72.240.0/20 AS24320 RAILCOM Mongolian Railway Commercial Center Railcom 202.86.252.0/22 AS9304 HUTCHISON-AS-AP Hutchison Global Communications 202.93.0.0/20 AS4134 CHINANET-BACKBONE No.31,Jin-rong Street 202.123.0.0/19 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.2.0/24 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.8.0/22 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.123.16.0/20 AS23889 MAURITIUS-TELECOM-AS-AP MAURITIUS TELECOM 202.164.224.0/19 AS7599 IPXC-AS-AP IP Exchange 203.32.4.0/23 AS7617 TELEONE-HK TeleTeleOne (HK) Limited 203.62.0.0/17 AS7572 AARNET-ACT-RNO Australian Academic and Reasearch Network (AARNet) 203.99.0.0/19 AS17746 ORCONINTERNET-NZ-AP Orcon Internet 203.210.69.0/24 AS17536 PRODIGY-AS-AP Prodidgy Telecommunications 204.48.119.0/24 AS29912 CITIZENS-PROPERTY-INSURANCE-CORPORATION - Citizens Property Insurance Corporation 204.154.125.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.126.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.154.127.0/24 AS3952 TELLABS-ASN - TELLABS Operations, Inc. 204.194.110.0/23 AS30653 EXOBIT - Exobit Networks Inc. 205.150.0.0/15 AS701 ALTERNET-AS - UUNET Technologies, Inc. 206.108.96.0/19 AS577 BACOM - Bell Advanced Communications Inc. 206.128.104.0/21 AS11709 VIC - VIRTUAL INTERACTIVE CENTER 206.167.57.0/24 AS376 RISQ-AS - Reseau Interordinateurs Scientique Quebecois (RISQ) 206.191.64.0/18 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 206.191.96.0/19 AS15290 ALLST-15290 - Allstream Corp. Corporation Allstream 207.231.96.0/19 AS11194 NUNETPA - NuNet Inc 208.138.48.0/20 AS6971 ATG-1 - Advanced Telcom Group, Inc 209.27.51.0/24 AS14132 INTERNETGATEWAY - Internet Gateway Inc. 209.205.69.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.70.0/24 AS21578 Universidad autonoma de Bucaramanga 209.205.81.0/24 AS15066 SkyNet de Colombia S.A. 209.205.82.0/24 AS15066 SkyNet de Colombia S.A. 209.205.84.0/24 AS15066 SkyNet de Colombia S.A. 209.213.32.0/19 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.48.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.213.49.0/24 AS10629 INTERPAC - Inter-Pacific Network Services 209.222.137.0/24 AS27429 TIL - Telesat International Ltd. 209.251.0.0/19 AS11036 SISCOM - SISCOM, Inc 216.37.110.0/23 AS4264 CERNET-ASN-BLOCK - California Education and Research Federation Network 216.96.128.0/18 AS7018 ATT-INTERNET4 - AT&T WorldNet Services 216.145.200.0/21 AS20304 JVLNET - JVLNET Internet Services 216.171.96.0/20 AS3356 LEVEL3 Level 3 Communications Please see http://www.cidr-report.org for the full report ------------------------------------ Copies of this report are mailed to: nanog(a)merit.edu eof-list(a)ripe.net apops(a)apops.net routing-wg(a)ripe.net afnog(a)afnog.org swinog(a)swinog.ch

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