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Routing Table Report 04:00 +10GMT Thu 21 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 160337 Prefixes after maximum aggregation: 93306 Unique aggregates announced to Internet: 77220 Total ASes present in the Internet Routing Table: 19455 Origin-only ASes present in the Internet Routing Table: 16920 Origin ASes announcing only one prefix: 7931 Transit ASes present in the Internet Routing Table: 2535 Transit-only ASes present in the Internet Routing Table: 73 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 25 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: 1384090688 Equivalent to 82 /8s, 127 /16s and 140 /24s Percentage of available address space announced: 37.3 Percentage of allocated address space announced: 58.6 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74978
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32670 Total APNIC prefixes after maximum aggregation: 15418 Prefixes being announced from the APNIC address blocks: 30604 Unique aggregates announced from the APNIC address blocks: 15492 APNIC Region origin ASes present in the Internet Routing Table: 2243 APNIC Region origin ASes announcing only one prefix: 657 APNIC Region transit ASes present in the Internet Routing Table: 342 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 181798784 Equivalent to 10 /8s, 214 /16s and 7 /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: 87157 Total ARIN prefixes after maximum aggregation: 53136 Prefixes being announced from the ARIN address blocks: 67942 Unique aggregates announced from the ARIN address blocks: 24975 ARIN Region origin ASes present in the Internet Routing Table: 9864 ARIN Region origin ASes announcing only one prefix: 3578 ARIN Region transit ASes present in the Internet Routing Table: 932 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 246268928 Equivalent to 14 /8s, 173 /16s and 196 /24s Percentage of available ARIN address space announced: 69.9
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: 30456 Total RIPE prefixes after maximum aggregation: 21041 Prefixes being announced from the RIPE address blocks: 27482 Unique aggregates announced from the RIPE address blocks: 18350 RIPE Region origin ASes present in the Internet Routing Table: 6565 RIPE Region origin ASes announcing only one prefix: 3475 RIPE Region transit ASes present in the Internet Routing Table: 1100 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 201700800 Equivalent to 12 /8s, 5 /16s and 181 /24s Percentage of available RIPE address space announced: 70.7
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: 8599 Total LACNIC prefixes after maximum aggregation: 3002 Prefixes being announced from the LACNIC address blocks: 7000 Unique aggregates announced from the LACNIC address blocks: 4042 LACNIC Region origin ASes present in the Internet Routing Table: 612 LACNIC Region origin ASes announcing only one prefix: 194 LACNIC Region transit ASes present in the Internet Routing Table: 116 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18162176 Equivalent to 1 /8s, 21 /16s and 34 /24s Percentage of available LACNIC address space announced: 54.1
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: 1438 Total AfriNIC prefixes after maximum aggregation: 709 Prefixes being announced from the AfriNIC address blocks: 936 Unique aggregates announced from the AfriNIC address blocks: 740 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: 13 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2209792 Equivalent to 0 /8s, 33 /16s and 184 /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 774 1193 551 Telstra Pty Ltd 9583 714 52 64 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 543 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 487 86 71 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 329 23 152 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 311 251 169 CNCGROUP IP network: China169 7474 299 268 210 SingTel Optus Pty Ltd 9498 285 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 244 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 1476 6514 960 AT&T WorldNet Services 174 1141 5605 973 Cogent Communications 721 1119 21763 314 DLA Systems Automation Center 4323 1098 664 221 Time Warner Telecom 701 1003 8281 855 UUNET Technologies, Inc. 1239 914 2876 661 Sprint 6197 886 380 410 BellSouth Network Solutions, 2386 840 532 623 AT&T Data Communications Serv 18566 791 224 7 Covad Communications 209 643 3474 495 Qwest 20115 606 501 312 Charter Communications 3356 586 10836 440 Level 3 Communications, LLC 3561 545 2361 414 Savvis 852 532 1095 393 Telus Advanced Communications 27364 517 43 18 Armstrong Cable Services 3602 508 122 92 Sprint Canada, Inc. 5668 488 115 25 CenturyTel Internet Holdings, 22773 479 1188 21 Cox Communications, Inc. 6198 461 439 205 BellSouth Network Solutions, 7132 441 8654 378 SBC Internet Services
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 592 2002 484 UUNET - Commercial IP service 3320 304 2993 238 Deutsche Telekom AG 3301 296 1116 286 TeliaNet Sweden 8220 276 472 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 230 491 225 Song Networks 8708 227 251 208 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 163 47 143 Dynamic Network Technologies, 8866 163 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 151 184 84 AUCS Communications Services 5400 146 284 129 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 353 533 146 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 197 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 11664 157 19 23 Keytech SA 7303 148 68 21 Telecom Argentina Stet-France 6505 131 90 88 Global One Communicaoes Ltda 22047 123 96 6 VTR PUNTO NET S.A. 14117 119 8 4 Telefonica del Sur S.A. 11556 106 52 5 Cable-Wireless Panama 18822 104 7 16 TELEFONICA MANQUEHUE 6503 103 146 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 86 24 22 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 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 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 43 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 7460 18 3 5 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 1098 877 Time Warner Telecom 721 1119 805 DLA Systems Automation Center 18566 791 784 Covad Communications 4134 901 719 CHINANET-BACKBONE 9583 714 650 Sify Limited 27364 517 499 Armstrong Cable Services 6197 886 476 BellSouth Network Solutions, 5668 488 463 CenturyTel Internet Holdings, 22773 479 458 Cox Communications, Inc. 4755 543 431 Videsh Sanchar Nigam Ltd. Aut 3602 508 416 Sprint Canada, Inc. 7545 487 416 TPG Internet Pty Ltd 6467 440 405 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) 20115 606 294 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 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 /14:308 /15:585 /16:8371 /17:2519 /18:4316 /19:10200 /20:10964 /21:8877 /22:12191 /23:13243 /24:87601 /25:285 /26:263 /27:141 /28:76 /29:38 /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 661 1476 AT&T WorldNet Services 2386 596 840 AT&T Data Communications Serv 9583 534 714 Sify Limited 4323 514 1098 Time Warner Telecom 27364 505 517 Armstrong Cable Services 5668 406 488 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 382 914 Sprint 702 365 592 UUNET - Commercial IP service 6198 336 461 BellSouth Network Solutions, 6467 321 440 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 7011 295 344 Citizens Utilities 6517 294 317 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 11456 273 320 Carolina Online, Inc. 15270 254 274 PaeTec.net -a division of Pae 174 249 1141 Cogent Communications
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 12:1524 13:1 15:9 16:2 17:3 18:4 20:4 24:843 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:41 59:25 60:20 61:757 62:584 63:1876 64:2679 65:2083 66:2777 67:541 68:512 69:977 70:90 71:6 72:135 80:552 81:537 82:383 83:233 84:148 85:173 86:1 128:148 129:158 130:88 131:281 132:35 133:1 134:150 135:41 136:191 137:66 138:171 139:56 140:191 141:106 142:138 143:130 144:171 145:32 146:279 147:103 148:293 149:169 150:98 151:63 152:107 153:87 154:5 155:143 156:77 157:88 158:167 159:173 160:73 161:60 162:202 163:84 164:205 165:176 166:155 167:232 168:416 169:139 170:312 171:8 172:2 192:5700 193:3166 194:2333 195:1558 196:648 198:3941 199:3282 200:4004 201:114 202:5465 203:6130 204:3814 205:2018 206:2459 207:2754 208:2088 209:3281 210:1691 211:840 212:1188 213:1285 214:273 215:31 216:3590 217:1137 218:186 219:107 220:355 221:194 222:91
End of report
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