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Routing Table Report 04:00 +10GMT Wed 13 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 159633 Prefixes after maximum aggregation: 92957 Unique aggregates announced to Internet: 76761 Total ASes present in the Internet Routing Table: 19375 Origin-only ASes present in the Internet Routing Table: 16857 Origin ASes announcing only one prefix: 7880 Transit ASes present in the Internet Routing Table: 2518 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: 51 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1380430208 Equivalent to 82 /8s, 71 /16s and 177 /24s Percentage of available address space announced: 37.2 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74493
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32587 Total APNIC prefixes after maximum aggregation: 15377 Prefixes being announced from the APNIC address blocks: 30515 Unique aggregates announced from the APNIC address blocks: 15380 APNIC Region origin ASes present in the Internet Routing Table: 2259 APNIC Region origin ASes announcing only one prefix: 659 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: 15 Number of APNIC addresses announced to Internet: 181390976 Equivalent to 10 /8s, 207 /16s and 206 /24s Percentage of available APNIC address space announced: 67.3
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: 86726 Total ARIN prefixes after maximum aggregation: 52924 Prefixes being announced from the ARIN address blocks: 67637 Unique aggregates announced from the ARIN address blocks: 24820 ARIN Region origin ASes present in the Internet Routing Table: 9828 ARIN Region origin ASes announcing only one prefix: 3560 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: 244207872 Equivalent to 14 /8s, 142 /16s and 81 /24s Percentage of available ARIN address space announced: 69.3
ARIN AS Blocks 1-1876, 1902-2042, 2044-2046, 2048-2106 (pre-ERX allocations) 2138-2584, 2615-2772, 2823-2829, 2880-3153 3354-4607, 4865-5119, 5632-6655, 6912-7466 7723-8191, 10240-12287, 13312-15359, 16384-17407 18432-20479, 21504-23551, 25600-26591, 26624-27647, 29696-30719, 31744-33791 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: 30302 Total RIPE prefixes after maximum aggregation: 20961 Prefixes being announced from the RIPE address blocks: 27328 Unique aggregates announced from the RIPE address blocks: 18242 RIPE Region origin ASes present in the Internet Routing Table: 6526 RIPE Region origin ASes announcing only one prefix: 3443 RIPE Region transit ASes present in the Internet Routing Table: 1088 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 201003712 Equivalent to 11 /8s, 251 /16s and 18 /24s Percentage of available RIPE address space announced: 70.5
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: 8536 Total LACNIC prefixes after maximum aggregation: 2989 Prefixes being announced from the LACNIC address blocks: 6974 Unique aggregates announced from the LACNIC address blocks: 4012 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: 113 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 18060800 Equivalent to 1 /8s, 19 /16s and 150 /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: 1427 Total AfriNIC prefixes after maximum aggregation: 706 Prefixes being announced from the AfriNIC address blocks: 926 Unique aggregates announced from the AfriNIC address blocks: 735 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2201344 Equivalent to 0 /8s, 33 /16s and 151 /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 900 4843 180 CHINANET-BACKBONE 1221 772 1192 550 Telstra Pty Ltd 9583 704 52 45 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 546 243 113 Videsh Sanchar Nigam Ltd. Aut 7545 479 86 66 TPG Internet Pty Ltd 17676 429 6492 71 Softbank BB Corp. 9443 369 77 75 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 347 1838 321 SINET Japan 17557 337 24 152 Pakistan Telecom 10036 312 28 284 C&M Communication Co. Ltd. 4808 303 250 165 CNCGROUP IP network: China169 7474 295 268 213 SingTel Optus Pty Ltd 4802 278 47 163 Wantree Development 9498 264 82 52 BHARTI BT INTERNET LTD. 2764 261 238 199 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 1470 6530 961 AT&T WorldNet Services 721 1119 21763 314 DLA Systems Automation Center 4323 1091 663 220 Time Warner Telecom 174 1085 5584 923 Cogent Communications 701 1011 8282 860 UUNET Technologies, Inc. 1239 915 2877 662 Sprint 6197 888 384 414 BellSouth Network Solutions, 2386 842 532 623 AT&T Data Communications Serv 18566 788 224 7 Covad Communications 209 646 3475 500 Qwest 20115 602 498 311 Charter Communications 3356 586 10852 435 Level 3 Communications, LLC 3561 542 2370 415 Savvis 852 538 1095 397 Telus Advanced Communications 3602 508 121 93 Sprint Canada, Inc. 27364 504 43 18 Armstrong Cable Services 5668 484 115 25 CenturyTel Internet Holdings, 22773 475 1188 21 Cox Communications, Inc. 6198 458 380 215 BellSouth Network Solutions, 6467 440 143 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 276 468 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 230 474 225 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 151 184 85 AUCS Communications Services 5400 143 281 127 BT Ignite European Backbone 25186 138 137 96 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 351 533 147 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 218 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 156 68 25 Telecom Argentina Stet-France 11664 152 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. 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. 4270 79 18 9 Red de Interconexion Universi
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 267 635 224 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 74 266 68 The Internetworking Company o 8452 64 20 5 TEDATA 24835 59 34 6 RAYA Telecom - Egypt 12455 42 7 5 Jambonet Autonomous system 9129 36 3 3 UUNET Kenya 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 7460 18 3 5 LIA Internet Access 21280 18 2 3 Swift Global Kenya Ltd.Is an 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 1091 871 Time Warner Telecom 721 1119 805 DLA Systems Automation Center 18566 788 781 Covad Communications 4134 900 720 CHINANET-BACKBONE 9583 704 659 Sify Limited 27364 504 486 Armstrong Cable Services 6197 888 474 BellSouth Network Solutions, 5668 484 459 CenturyTel Internet Holdings, 22773 475 454 Cox Communications, Inc. 4755 546 433 Videsh Sanchar Nigam Ltd. Aut 3602 508 415 Sprint Canada, Inc. 7545 479 413 TPG Internet Pty Ltd 6467 440 405 E.Spire Communications, Inc. 17676 429 358 Softbank BB Corp. 6140 396 325 ImpSat 9929 358 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 9443 369 294 Primus Telecommunications 20115 602 291 Charter Communications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 35899 UNALLOCATED 12.19.70.0/24 7018 AT&T WorldNet Servic 35910 UNALLOCATED 24.248.247.0/24 15218 COX Communications 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 35882 UNALLOCATED 63.169.171.0/24 701 UUNET Technologies, 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 35882 UNALLOCATED 65.217.48.0/24 701 UUNET Technologies, 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 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 35857 UNALLOCATED 199.107.188.0/24 4264 California Education 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 35882 UNALLOCATED 204.180.198.0/23 701 UUNET Technologies, 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 /16:8346 /17:2510 /18:4304 /19:10193 /20:10895 /21:8781 /22:12108 /23:13192 /24:87260 /25:284 /26:269 /27:142 /28:72 /29:37 /30:66 /31:0 /32:28
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 772 788 Covad Communications 6197 729 888 BellSouth Network Solutions, 7018 654 1470 AT&T WorldNet Services 2386 597 842 AT&T Data Communications Serv 9583 523 704 Sify Limited 4323 508 1091 Time Warner Telecom 27364 491 504 Armstrong Cable Services 5668 404 484 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 382 915 Sprint 702 365 598 UUNET - Commercial IP service 6198 336 458 BellSouth Network Solutions, 6467 320 440 E.Spire Communications, Inc. 10036 312 312 C&M Communication Co. Ltd. 6517 290 313 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 269 316 Carolina Online, Inc. 15270 253 273 PaeTec.net -a division of Pae 3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 10:6 12:1520 13:1 15:9 16:2 17:3 18:4 20:4 24:793 28:2 31:1 32:63 33:4 38:105 40:53 42:2 44:8 47:2 50:1 52:13 54:1 55:3 56:3 57:24 58:39 59:23 60:19 61:737 62:581 63:1886 64:2659 65:2080 66:2740 67:523 68:515 69:967 70:84 71:6 72:130 80:541 81:531 82:375 83:231 84:147 85:166 128:137 129:157 130:89 131:281 132:35 133:1 134:145 135:41 136:187 137:66 138:175 139:56 140:193 141:106 142:137 143:129 144:173 145:32 146:280 147:102 148:272 149:170 150:98 151:63 152:107 153:87 154:4 155:144 156:69 157:89 158:168 159:172 160:73 161:60 162:200 163:87 164:204 165:160 166:154 167:231 168:416 169:137 170:312 171:8 172:2 192:5679 193:3144 194:2323 195:1541 196:642 198:3935 199:3275 200:4003 201:114 202:5473 203:6142 204:3816 205:2016 206:2443 207:2724 208:2074 209:3275 210:1688 211:835 212:1176 213:1277 214:273 215:31 216:3686 217:1161 218:186 219:104 220:373 221:174 222:77
End of report
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