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Routing Table Report 04:00 +10GMT Mon 11 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 159474 Prefixes after maximum aggregation: 92899 Unique aggregates announced to Internet: 76641 Total ASes present in the Internet Routing Table: 19344 Origin-only ASes present in the Internet Routing Table: 16832 Origin ASes announcing only one prefix: 7853 Transit ASes present in the Internet Routing Table: 2512 Transit-only ASes present in the Internet Routing Table: 71 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 23 Prefixes from unregistered ASNs in the Routing Table: 46 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1379697536 Equivalent to 82 /8s, 60 /16s and 131 /24s Percentage of available address space announced: 37.2 Percentage of allocated address space announced: 58.4 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74361
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32575 Total APNIC prefixes after maximum aggregation: 15389 Prefixes being announced from the APNIC address blocks: 30498 Unique aggregates announced from the APNIC address blocks: 15360 APNIC Region origin ASes present in the Internet Routing Table: 2258 APNIC Region origin ASes announcing only one prefix: 657 APNIC Region transit ASes present in the Internet Routing Table: 339 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 181101440 Equivalent to 10 /8s, 203 /16s and 99 /24s Percentage of available APNIC address space announced: 67.2
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: 86664 Total ARIN prefixes after maximum aggregation: 52880 Prefixes being announced from the ARIN address blocks: 67577 Unique aggregates announced from the ARIN address blocks: 24800 ARIN Region origin ASes present in the Internet Routing Table: 9816 ARIN Region origin ASes announcing only one prefix: 3554 ARIN Region transit ASes present in the Internet Routing Table: 927 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 243905280 Equivalent to 14 /8s, 137 /16s and 179 /24s Percentage of available ARIN address space announced: 69.2
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: 30203 Total RIPE prefixes after maximum aggregation: 20927 Prefixes being announced from the RIPE address blocks: 27251 Unique aggregates announced from the RIPE address blocks: 18174 RIPE Region origin ASes present in the Internet Routing Table: 6508 RIPE Region origin ASes announcing only one prefix: 3424 RIPE Region transit ASes present in the Internet Routing Table: 1087 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 200799168 Equivalent to 11 /8s, 247 /16s and 243 /24s Percentage of available RIPE address space announced: 70.4
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: 8560 Total LACNIC prefixes after maximum aggregation: 2997 Prefixes being announced from the LACNIC address blocks: 6982 Unique aggregates announced from the LACNIC address blocks: 4016 LACNIC Region origin ASes present in the Internet Routing Table: 610 LACNIC Region origin ASes announcing only one prefix: 192 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: 18037760 Equivalent to 1 /8s, 19 /16s and 60 /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
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 1421 Total AfriNIC prefixes after maximum aggregation: 706 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: 99 AfriNIC Region origin ASes announcing only one prefix: 26 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: 2202368 Equivalent to 0 /8s, 33 /16s and 155 /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 4134 899 4835 179 CHINANET-BACKBONE 1221 781 1193 555 Telstra Pty Ltd 9583 698 52 45 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 554 244 123 Videsh Sanchar Nigam Ltd. Aut 7545 480 86 67 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 348 1839 322 SINET Japan 17557 337 24 153 Pakistan Telecom 10036 311 28 283 C&M Communication Co. Ltd. 4808 305 250 166 CNCGROUP IP network: China169 7474 295 268 213 SingTel Optus Pty Ltd 4802 282 47 166 Wantree Development 2764 263 238 201 AAPT Limited 9498 261 82 53 BHARTI BT INTERNET LTD. 703 256 279 210 UUNET - Commercial IP service 9800 238 386 69 CHINA UNICOM 17974 237 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1472 6530 964 AT&T WorldNet Services 721 1117 21747 313 DLA Systems Automation Center 4323 1092 663 220 Time Warner Telecom 174 1083 5584 921 Cogent Communications 701 1008 8281 857 UUNET Technologies, Inc. 1239 914 2877 661 Sprint 6197 879 376 413 BellSouth Network Solutions, 2386 841 532 622 AT&T Data Communications Serv 18566 788 224 7 Covad Communications 209 647 3475 500 Qwest 20115 603 498 309 Charter Communications 3356 585 10852 434 Level 3 Communications, LLC 3561 542 2370 415 Savvis 852 537 1079 396 Telus Advanced Communications 3602 508 121 93 Sprint Canada, Inc. 27364 504 43 18 Armstrong Cable Services 5668 483 115 25 CenturyTel Internet Holdings, 22773 475 1188 21 Cox Communications, Inc. 6198 458 380 215 BellSouth Network Solutions, 6467 445 143 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 302 2993 236 Deutsche Telekom AG 3301 298 1117 288 TeliaNet Sweden 8220 276 468 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 476 226 Song Networks 8708 227 251 208 Romania Data Systems S.A. 1257 200 696 176 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 161 47 141 Dynamic Network Technologies, 719 157 322 99 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 143 281 127 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 127 2305 115 BTnet UK Regional network
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 350 529 146 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 217 99 53 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 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 106 146 75 AVANTEL, S.A. 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 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. 22927 79 65 20 TELEFONICA DE ARGENTINA
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 21 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 74 266 68 The Internetworking Company o 8452 64 20 5 TEDATA 24835 59 34 6 RAYA Telecom - Egypt 9129 42 3 3 UUNET Kenya 12455 42 7 5 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 22 84 4 Nile Online 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 21280 18 2 3 Swift Global Kenya Ltd.Is an 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
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 0 0 65531 * 4323 1092 872 Time Warner Telecom 721 1117 804 DLA Systems Automation Center 18566 788 781 Covad Communications 4134 899 720 CHINANET-BACKBONE 9583 698 653 Sify Limited 27364 504 486 Armstrong Cable Services 6197 879 466 BellSouth Network Solutions, 5668 483 458 CenturyTel Internet Holdings, 22773 475 454 Cox Communications, Inc. 4755 554 431 Videsh Sanchar Nigam Ltd. Aut 3602 508 415 Sprint Canada, Inc. 7545 480 413 TPG Internet Pty Ltd 6467 445 410 E.Spire Communications, Inc. 17676 427 355 Softbank BB Corp. 6140 395 324 ImpSat 9929 358 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 20115 603 294 Charter Communications 9443 370 294 Primus Telecommunications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 35899 UNALLOCATED 12.19.70.0/24 7018 AT&T WorldNet Servic 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 35884 UNALLOCATED 64.74.167.0/24 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 35895 UNALLOCATED 72.5.143.0/24 10910 InterNAP Network Ser 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 65056 PRIVATE 200.47.114.0/23 11664 Keytech SA 35875 UNALLOCATED 204.117.76.0/24 1239 Sprint 35866 UNALLOCATED 206.13.80.0/24 7132 SBC Internet Service 35849 UNALLOCATED 206.170.102.0/24 174 Cogent Communication 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 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 35892 UNALLOCATED 216.14.0.0/19 6461 AboveNet Communicati 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 14697 VDot.Net 35892 UNALLOCATED 216.200.243.0/24 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 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 /14:307 /15:576 /16:8339 /17:2507 /18:4299 /19:10187 /20:10894 /21:8757 /22:12091 /23:13179 /24:87179 /25:284 /26:267 /27:139 /28:72 /29:37 /30:66 /31:0 /32:31
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 772 788 Covad Communications 6197 724 879 BellSouth Network Solutions, 7018 654 1472 AT&T WorldNet Services 2386 596 841 AT&T Data Communications Serv 9583 519 698 Sify Limited 4323 508 1092 Time Warner Telecom 27364 491 504 Armstrong Cable Services 5668 403 483 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 380 914 Sprint 702 365 598 UUNET - Commercial IP service 6198 336 458 BellSouth Network Solutions, 6467 324 445 E.Spire Communications, Inc. 10036 311 311 C&M Communication Co. Ltd. 6517 290 313 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 264 311 Carolina Online, Inc. 15270 252 272 PaeTec.net -a division of Pae 3320 247 302 Deutsche Telekom AG
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 10:6 12:1519 13:1 15:9 16:2 17:3 18:4 20:4 24:796 28:2 31:1 32:63 33:4 38:105 40:53 44:8 47:2 50:1 52:12 54:1 55:3 56:3 57:23 58:37 59:22 60:17 61:748 62:574 63:1877 64:2657 65:2077 66:2740 67:516 68:508 69:962 70:84 71:6 72:131 80:540 81:531 82:373 83:225 84:145 85:160 128:137 129:160 130:89 131:281 132:34 133:1 134:145 135:41 136:191 137:67 138:164 139:56 140:193 141:106 142:137 143:130 144:172 145:32 146:280 147:102 148:293 149:169 150:98 151:63 152:107 153:87 154:4 155:144 156:69 157:89 158:167 159:172 160:73 161:60 162:200 163:87 164:207 165:160 166:154 167:227 168:413 169:137 170:312 171:8 172:2 192:5680 193:3146 194:2322 195:1537 196:638 198:3932 199:3266 200:4008 201:113 202:5470 203:6142 204:3817 205:2023 206:2441 207:2727 208:2076 209:3271 210:1688 211:833 212:1179 213:1268 214:272 215:31 216:3676 217:1160 218:186 219:103 220:373 221:165 222:74
End of report
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