Routing Table Report 04:00 +10GMT Thu 31 Mar, 2005
Analysis Summary ----------------
BGP routing table entries examined: 158833 Prefixes after maximum aggregation: 92581 Unique aggregates announced to Internet: 76258 Total ASes present in the Internet Routing Table: 19259 Origin-only ASes present in the Internet Routing Table: 16770 Origin ASes announcing only one prefix: 7817 Transit ASes present in the Internet Routing Table: 2489 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: 28 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1390523416 Equivalent to 82 /8s, 225 /16s and 180 /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: 74001
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32246 Total APNIC prefixes after maximum aggregation: 15322 Prefixes being announced from the APNIC address blocks: 30160 Unique aggregates announced from the APNIC address blocks: 15320 APNIC Region origin ASes present in the Internet Routing Table: 2232 APNIC Region origin ASes announcing only one prefix: 649 APNIC Region transit ASes present in the Internet Routing Table: 334 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 179946368 Equivalent to 10 /8s, 185 /16s and 195 /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: 86569 Total ARIN prefixes after maximum aggregation: 52765 Prefixes being announced from the ARIN address blocks: 67539 Unique aggregates announced from the ARIN address blocks: 24625 ARIN Region origin ASes present in the Internet Routing Table: 9791 ARIN Region origin ASes announcing only one prefix: 3551 ARIN Region transit ASes present in the Internet Routing Table: 923 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 243172352 Equivalent to 14 /8s, 126 /16s and 132 /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: 30080 Total RIPE prefixes after maximum aggregation: 20784 Prefixes being announced from the RIPE address blocks: 27155 Unique aggregates announced from the RIPE address blocks: 18040 RIPE Region origin ASes present in the Internet Routing Table: 6469 RIPE Region origin ASes announcing only one prefix: 3405 RIPE Region transit ASes present in the Internet Routing Table: 1082 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 196565444 Equivalent to 11 /8s, 183 /16s and 89 /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: 8510 Total LACNIC prefixes after maximum aggregation: 3007 Prefixes being announced from the LACNIC address blocks: 6936 Unique aggregates announced from the LACNIC address blocks: 4009 LACNIC Region origin ASes present in the Internet Routing Table: 606 LACNIC Region origin ASes announcing only one prefix: 188 LACNIC Region transit ASes present in the Internet Routing Table: 108 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 17954304 Equivalent to 1 /8s, 17 /16s and 246 /24s Percentage of available LACNIC address space announced: 53.5
LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary ----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1395 Total AfriNIC prefixes after maximum aggregation: 703 Prefixes being announced from the AfriNIC address blocks: 902 Unique aggregates announced from the AfriNIC address blocks: 725 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: 2191360 Equivalent to 0 /8s, 33 /16s and 112 /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 896 4827 180 CHINANET-BACKBONE 1221 788 1193 560 Telstra Pty Ltd 9583 649 51 40 Sify Limited 4766 585 3415 275 Korea Telecom (KIX) 4755 515 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 486 86 71 TPG Internet Pty Ltd 17676 426 6444 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 344 1823 319 SINET Japan 17557 337 24 158 Pakistan Telecom 10036 306 28 279 C&M Communication Co. Ltd. 4808 302 248 163 CNCGROUP IP network: China169 7474 291 268 211 SingTel Optus Pty Ltd 4802 282 47 167 Wantree Development 9498 263 81 52 BHARTI BT INTERNET LTD. 2764 255 238 203 AAPT Limited 703 253 279 208 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 1480 6562 969 AT&T WorldNet Services 721 1118 21763 314 DLA Systems Automation Center 4323 1092 663 222 Time Warner Telecom 701 1018 8283 867 UUNET Technologies, Inc. 174 973 5576 829 Cogent Communications 1239 910 2865 659 Sprint 6197 882 383 413 BellSouth Network Solutions, 2386 835 500 617 AT&T Data Communications Serv 18566 780 208 6 Covad Communications 209 646 3475 501 Qwest 20115 595 494 308 Charter Communications 3356 583 10852 431 Level 3 Communications, LLC 3561 539 2370 415 Savvis 852 538 1095 397 Telus Advanced Communications 3602 507 121 93 Sprint Canada, Inc. 6478 505 833 114 AT&T Worldnet Services 5668 475 115 27 CenturyTel Internet Holdings, 22773 475 1188 21 Cox Communications, Inc. 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 702 588 2002 479 UUNET - Commercial IP service 3320 298 2992 233 Deutsche Telekom AG 3301 297 1117 287 TeliaNet Sweden 8220 277 466 271 COLT Telecommunications 680 254 2041 239 DFN-IP service G-WiN 3246 231 475 225 Song Networks 8708 226 251 205 Romania Data Systems S.A. 9121 210 242 49 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 8866 165 21 12 Bulgarian Telecommunication C 6746 161 47 141 Dynamic Network Technologies, 719 158 322 99 LANLINK autonomous system 3300 153 184 86 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 9051 127 8 37 INCONET Autonomous System
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 345 505 142 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 148 67 28 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 104 145 74 AVANTEL, S.A. 18822 102 6 14 TELEFONICA MANQUEHUE 13999 99 52 9 Mega Cable S.A. de C.V. 11556 98 49 4 Cable-Wireless Panama 19169 93 6 16 Telconet 6535 87 7 23 Chilesat Servicios Empresari 23216 87 24 24 RAMtelecom Telecomunicaciones 11311 85 8 21 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 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 58 20 5 TEDATA 24835 57 34 6 RAYA Telecom - Egypt 12455 41 7 4 Jambonet Autonomous system 9129 40 3 2 UUNET Kenya 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 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 12258 18 3 12 Vodacom Internet Company 21280 18 2 3 Swift Global Kenya Ltd.Is an 15475 16 84 4 Nile Online 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 870 Time Warner Telecom 721 1118 804 DLA Systems Automation Center 18566 780 774 Covad Communications 4134 896 716 CHINANET-BACKBONE 9583 649 609 Sify Limited 6197 882 469 BellSouth Network Solutions, 22773 475 454 Cox Communications, Inc. 5668 475 448 CenturyTel Internet Holdings, 27364 465 447 Armstrong Cable Services 7545 486 415 TPG Internet Pty Ltd 3602 507 414 Sprint Canada, Inc. 4755 515 403 Videsh Sanchar Nigam Ltd. Aut 6478 505 391 AT&T Worldnet Services 6467 423 388 E.Spire Communications, Inc. 17676 426 353 Softbank BB Corp. 6140 384 313 ImpSat 9929 358 313 China Netcom Corp. 4766 585 310 Korea Telecom (KIX) 9443 370 294 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 64.111.163.0/24 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 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 /13:150 /14:308 /15:580 /16:8327 /17:2504 /18:4291 /19:10135 /20:10888 /21:8724 /22:12116 /23:13158 /24:86645 /25:281 /26:268 /27:133 /28:59 /29:25 /30:90 /31:0 /32:43
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 765 780 Covad Communications 6197 723 882 BellSouth Network Solutions, 7018 654 1480 AT&T WorldNet Services 2386 589 835 AT&T Data Communications Serv 4323 505 1092 Time Warner Telecom 9583 471 649 Sify Limited 27364 450 465 Armstrong Cable Services 4766 401 585 Korea Telecom (KIX) 5668 400 475 CenturyTel Internet Holdings, 1239 376 910 Sprint 702 352 588 UUNET - Commercial IP service 6198 337 470 BellSouth Network Solutions, 6467 314 423 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 264 311 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 12:1511 13:1 15:9 16:2 17:3 18:4 20:4 24:745 32:64 33:4 38:102 40:55 44:3 47:2 52:3 55:2 56:3 57:23 58:5 59:12 60:25 61:739 62:549 63:1877 64:2646 65:2078 66:2734 67:510 68:508 69:961 70:76 71:4 72:119 80:537 81:491 82:385 83:258 84:129 85:173 128:141 129:159 130:90 131:280 132:35 133:1 134:144 135:40 136:190 137:66 138:159 139:51 140:192 141:105 142:137 143:130 144:171 145:32 146:280 147:101 148:294 149:167 150:97 151:63 152:107 153:87 154:4 155:143 156:68 157:86 158:167 159:168 160:72 161:60 162:187 163:84 164:214 165:161 166:152 167:230 168:418 169:135 170:311 171:8 172:1 192:5661 193:3107 194:2316 195:1531 196:628 198:3915 199:3273 200:4072 201:60 202:5376 203:6136 204:3777 205:2056 206:2400 207:2722 208:2071 209:3256 210:1652 211:827 212:1184 213:1273 214:243 215:31 216:3695 217:1148 218:190 219:103 220:373 221:136 222:73
End of report
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Routing Table Analysis