Routing Table Report 04:00 +10GMT Tue 29 Mar, 2005
Analysis Summary ----------------
BGP routing table entries examined: 158701 Prefixes after maximum aggregation: 92595 Unique aggregates announced to Internet: 76365 Total ASes present in the Internet Routing Table: 19245 Origin-only ASes present in the Internet Routing Table: 16742 Origin ASes announcing only one prefix: 7799 Transit ASes present in the Internet Routing Table: 2503 Transit-only ASes present in the Internet Routing Table: 70 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: 25 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1390098200 Equivalent to 82 /8s, 219 /16s and 55 /24s Percentage of available address space announced: 37.5 Percentage of allocated address space announced: 59.3 Percentage of available address space allocated: 63.2 Total number of prefixes smaller than registry allocations: 74045
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32124 Total APNIC prefixes after maximum aggregation: 15284 Prefixes being announced from the APNIC address blocks: 30039 Unique aggregates announced from the APNIC address blocks: 15316 APNIC Region origin ASes present in the Internet Routing Table: 2230 APNIC Region origin ASes announcing only one prefix: 650 APNIC Region transit ASes present in the Internet Routing Table: 336 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 179654272 Equivalent to 10 /8s, 181 /16s and 78 /24s Percentage of available APNIC address space announced: 66.7
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: 86347 Total ARIN prefixes after maximum aggregation: 52819 Prefixes being announced from the ARIN address blocks: 67362 Unique aggregates announced from the ARIN address blocks: 24785 ARIN Region origin ASes present in the Internet Routing Table: 9785 ARIN Region origin ASes announcing only one prefix: 3542 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: 243284480 Equivalent to 14 /8s, 128 /16s and 58 /24s Percentage of available ARIN address space announced: 72.5
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, 70/7, 72/8, 198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 30299 Total RIPE prefixes after maximum aggregation: 20772 Prefixes being announced from the RIPE address blocks: 27313 Unique aggregates announced from the RIPE address blocks: 18033 RIPE Region origin ASes present in the Internet Routing Table: 6459 RIPE Region origin ASes announcing only one prefix: 3394 RIPE Region transit ASes present in the Internet Routing Table: 1086 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 196479172 Equivalent to 11 /8s, 182 /16s and 8 /24s Percentage of available RIPE address space announced: 68.9
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: 8508 Total LACNIC prefixes after maximum aggregation: 3022 Prefixes being announced from the LACNIC address blocks: 6933 Unique aggregates announced from the LACNIC address blocks: 3995 LACNIC Region origin ASes present in the Internet Routing Table: 609 LACNIC Region origin ASes announcing only one prefix: 190 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: 17839104 Equivalent to 1 /8s, 16 /16s and 52 /24s Percentage of available LACNIC address space announced: 53.2
LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary ----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1393 Total AfriNIC prefixes after maximum aggregation: 698 Prefixes being announced from the AfriNIC address blocks: 895 Unique aggregates announced from the AfriNIC address blocks: 719 AfriNIC Region origin ASes present in the Internet Routing Table: 97 AfriNIC Region origin ASes announcing only one prefix: 23 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: 2189824 Equivalent to 0 /8s, 33 /16s and 106 /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 894 4761 178 CHINANET-BACKBONE 1221 787 1191 559 Telstra Pty Ltd 9583 638 51 34 Sify Limited 4766 584 3415 275 Korea Telecom (KIX) 4755 511 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 486 86 71 TPG Internet Pty Ltd 17676 426 6444 73 Softbank BB Corp. 9443 371 77 77 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 345 1823 319 SINET Japan 17557 337 24 155 Pakistan Telecom 10036 306 28 279 C&M Communication Co. Ltd. 4808 300 247 161 CNCGROUP IP network: China169 7474 291 268 211 SingTel Optus Pty Ltd 4802 283 47 167 Wantree Development 9498 260 81 52 BHARTI BT INTERNET LTD. 2764 255 238 203 AAPT Limited 703 248 279 207 UUNET - Commercial IP service 9800 235 386 69 CHINA UNICOM 17974 233 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1476 6562 965 AT&T WorldNet Services 721 1117 21763 314 DLA Systems Automation Center 4323 1086 663 224 Time Warner Telecom 701 1019 8283 868 UUNET Technologies, Inc. 174 927 5570 785 Cogent Communications 1239 917 2868 663 Sprint 6197 881 383 412 BellSouth Network Solutions, 2386 834 500 616 AT&T Data Communications Serv 18566 780 208 6 Covad Communications 209 635 3476 500 Qwest 20115 594 492 310 Charter Communications 3356 583 10852 431 Level 3 Communications, LLC 852 540 1095 399 Telus Advanced Communications 3561 539 2370 415 Savvis 3602 506 121 93 Sprint Canada, Inc. 6478 498 833 115 AT&T Worldnet Services 22773 475 1188 21 Cox Communications, Inc. 5668 474 115 27 CenturyTel Internet Holdings, 6198 470 567 191 BellSouth Network Solutions, 27364 465 43 18 Armstrong Cable Services
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 603 2004 493 UUNET - Commercial IP service 3320 296 2992 231 Deutsche Telekom AG 3301 289 1116 279 TeliaNet Sweden 8220 276 466 270 COLT Telecommunications 680 254 2041 239 DFN-IP service G-WiN 3246 231 475 225 Song Networks 8708 225 251 204 Romania Data Systems S.A. 13083 218 51 8 Mannesmann Datenverarbeitung 9121 209 240 47 TTnet Autonomous System 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 166 1456 72 TELECOM ITALIA 6746 162 47 142 Dynamic Network Technologies, 719 158 322 99 LANLINK autonomous system 8866 155 20 7 Bulgarian Telecommunication C 3300 152 184 85 AUCS Communications Services 6830 143 529 28 UPC Distribution Services 5400 142 281 124 BT Ignite European Backbone 25186 142 138 100 France Telecom Transpac's Tra
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 337 488 140 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 191 14 7 Metropolis Intercom S.A. 11664 149 19 23 Keytech SA 7303 147 67 31 Telecom Argentina Stet-France 6505 132 90 88 Global One Communicaoes Ltda 14117 119 8 4 Telefonica del Sur S.A. 22047 116 96 6 VTR PUNTO NET S.A. 6503 103 145 73 AVANTEL, S.A. 18822 102 6 14 TELEFONICA MANQUEHUE 13999 100 52 9 Mega Cable S.A. de C.V. 11556 98 49 4 Cable-Wireless Panama 19169 93 6 16 Telconet 23216 88 24 24 RAMtelecom Telecomunicaciones 6535 87 7 23 Chilesat Servicios Empresari 11311 86 8 22 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 10481 80 32 7 Prima S.A.
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 268 635 225 The Internet Solution 5536 114 15 18 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 24835 58 34 6 RAYA Telecom - Egypt 8452 55 20 5 TEDATA 12455 41 7 4 Jambonet Autonomous system 9129 39 3 2 UUNET Kenya 6713 35 54 9 Itissalat Al-MAGHRIB 5713 27 141 24 Telkom SA Ltd 8524 24 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 19 1 11 Standard Bank of South Africa 7460 18 3 5 LIA Internet Access 8346 18 10 11 SONATEL-AS Autonomous System 12258 18 3 12 Vodacom Internet Company 21280 18 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 1086 862 Time Warner Telecom 721 1117 803 DLA Systems Automation Center 18566 780 774 Covad Communications 4134 894 716 CHINANET-BACKBONE 9583 638 604 Sify Limited 6197 881 469 BellSouth Network Solutions, 22773 475 454 Cox Communications, Inc. 5668 474 447 CenturyTel Internet Holdings, 27364 465 447 Armstrong Cable Services 7545 486 415 TPG Internet Pty Ltd 3602 506 413 Sprint Canada, Inc. 4755 511 399 Videsh Sanchar Nigam Ltd. Aut 6467 418 384 E.Spire Communications, Inc. 6478 498 383 AT&T Worldnet Services 17676 426 353 Softbank BB Corp. 6140 384 313 ImpSat 9929 358 313 China Netcom Corp. 4766 584 309 Korea Telecom (KIX) 9443 371 294 Primus Telecommunications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 65535 PRIVATE 64.111.161.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.162.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.164.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.165.0/24 33205 KMC Telecom Solution 65535 PRIVATE 64.111.167.0/24 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 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 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 /11:14 /12:64 /13:151 /14:305 /15:576 /16:8328 /17:2493 /18:4269 /19:10136 /20:10859 /21:8725 /22:12122 /23:13206 /24:86555 /25:264 /26:256 /27:128 /28:60 /29:26 /30:91 /31:0 /32:43
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 765 780 Covad Communications 6197 722 881 BellSouth Network Solutions, 7018 650 1476 AT&T WorldNet Services 2386 587 834 AT&T Data Communications Serv 4323 506 1086 Time Warner Telecom 9583 460 638 Sify Limited 27364 450 465 Armstrong Cable Services 4766 400 584 Korea Telecom (KIX) 5668 400 474 CenturyTel Internet Holdings, 1239 381 917 Sprint 702 366 603 UUNET - Commercial IP service 6198 337 470 BellSouth Network Solutions, 6467 310 418 E.Spire Communications, Inc. 10036 306 306 C&M Communication Co. Ltd. 6517 289 311 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 263 310 Carolina Online, Inc. 15270 249 268 PaeTec.net -a division of Pae 13609 247 292 Choice One Communications Inc
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:12 12:1508 13:1 15:9 16:2 17:3 18:4 20:4 24:741 32:64 33:4 38:102 40:55 44:3 47:2 52:3 55:2 56:3 57:23 58:5 59:11 60:25 61:736 62:541 63:1877 64:2635 65:2081 66:2734 67:510 68:506 69:950 70:77 71:5 72:122 80:538 81:507 82:386 83:253 84:131 85:199 128:137 129:156 130:90 131:280 132:34 133:1 134:144 135:40 136:190 137:66 138:158 139:50 140:193 141:105 142:139 143:130 144:171 145:45 146:281 147:101 148:293 149:167 150:97 151:63 152:108 153:86 154:3 155:143 156:67 157:87 158:167 159:168 160:72 161:60 162:200 163:84 164:214 165:160 166:127 167:230 168:418 169:135 170:312 171:8 172:1 192:5654 193:3106 194:2318 195:1615 196:621 198:3916 199:3265 200:4064 201:60 202:5364 203:6135 204:3752 205:2051 206:2363 207:2713 208:2081 209:3226 210:1646 211:826 212:1177 213:1280 214:241 215:31 216:3687 217:1142 218:190 219:101 220:371 221:127 222:73
End of report
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Routing Table Analysis