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Routing Table Report 04:00 +10GMT Fri 22 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 160479 Prefixes after maximum aggregation: 93364 Unique aggregates announced to Internet: 77285 Total ASes present in the Internet Routing Table: 19478 Origin-only ASes present in the Internet Routing Table: 16938 Origin ASes announcing only one prefix: 7950 Transit ASes present in the Internet Routing Table: 2540 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 29 Prefixes from unregistered ASNs in the Routing Table: 14 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1384331648 Equivalent to 82 /8s, 131 /16s and 57 /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: 75014
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32725 Total APNIC prefixes after maximum aggregation: 15420 Prefixes being announced from the APNIC address blocks: 30654 Unique aggregates announced from the APNIC address blocks: 15501 APNIC Region origin ASes present in the Internet Routing Table: 2245 APNIC Region origin ASes announcing only one prefix: 660 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: 15 Number of APNIC addresses announced to Internet: 181658496 Equivalent to 10 /8s, 211 /16s and 227 /24s Percentage of available APNIC address space announced: 67.4
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: 87218 Total ARIN prefixes after maximum aggregation: 53172 Prefixes being announced from the ARIN address blocks: 67997 Unique aggregates announced from the ARIN address blocks: 25002 ARIN Region origin ASes present in the Internet Routing Table: 9883 ARIN Region origin ASes announcing only one prefix: 3591 ARIN Region transit ASes present in the Internet Routing Table: 938 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 246376768 Equivalent to 14 /8s, 175 /16s and 105 /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: 30476 Total RIPE prefixes after maximum aggregation: 21063 Prefixes being announced from the RIPE address blocks: 27505 Unique aggregates announced from the RIPE address blocks: 18361 RIPE Region origin ASes present in the Internet Routing Table: 6570 RIPE Region origin ASes announcing only one prefix: 3478 RIPE Region transit ASes present in the Internet Routing Table: 1101 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 201786560 Equivalent to 12 /8s, 7 /16s and 4 /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: 8615 Total LACNIC prefixes after maximum aggregation: 3001 Prefixes being announced from the LACNIC address blocks: 7027 Unique aggregates announced from the LACNIC address blocks: 4061 LACNIC Region origin ASes present in the Internet Routing Table: 610 LACNIC Region origin ASes announcing only one prefix: 193 LACNIC Region transit ASes present in the Internet Routing Table: 112 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18419200 Equivalent to 1 /8s, 25 /16s and 14 /24s Percentage of available LACNIC address space announced: 54.9
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: 1428 Total AfriNIC prefixes after maximum aggregation: 708 Prefixes being announced from the AfriNIC address blocks: 936 Unique aggregates announced from the AfriNIC address blocks: 741 AfriNIC Region origin ASes present in the Internet Routing Table: 101 AfriNIC Region origin ASes announcing only one prefix: 28 AfriNIC Region transit ASes present in the Internet Routing Table: 14 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2206208 Equivalent to 0 /8s, 33 /16s and 170 /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 718 52 66 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 544 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 488 86 71 TPG Internet Pty Ltd 17676 430 6508 72 Softbank BB Corp. 9443 369 77 75 Primus Telecommunications 9929 357 173 44 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 331 23 154 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 307 251 168 CNCGROUP IP network: China169 7474 299 268 210 SingTel Optus Pty Ltd 9498 285 82 52 BHARTI BT INTERNET LTD. 4802 278 47 163 Wantree Development 2764 260 238 198 AAPT Limited 703 257 279 211 UUNET - Commercial IP service 9800 242 386 69 CHINA UNICOM 18302 232 74 131 SK Global co., Ltd
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1482 6515 958 AT&T WorldNet Services 174 1139 5604 971 Cogent Communications 721 1116 21747 312 DLA Systems Automation Center 4323 1100 665 223 Time Warner Telecom 701 1005 8282 856 UUNET Technologies, Inc. 1239 916 2876 663 Sprint 6197 887 380 410 BellSouth Network Solutions, 2386 841 532 623 AT&T Data Communications Serv 18566 791 224 7 Covad Communications 209 646 3474 498 Qwest 20115 607 502 308 Charter Communications 3356 583 10836 437 Level 3 Communications, LLC 3561 545 2361 414 Savvis 852 532 1095 393 Telus Advanced Communications 27364 518 43 18 Armstrong Cable Services 3602 505 122 92 Sprint Canada, Inc. 5668 489 115 25 CenturyTel Internet Holdings, 22773 479 1188 21 Cox Communications, Inc. 6198 461 439 205 BellSouth Network Solutions, 7132 442 8654 379 SBC Internet Services
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 593 2002 485 UUNET - Commercial IP service 3320 304 2993 238 Deutsche Telekom AG 3301 296 1116 286 TeliaNet Sweden 8220 275 472 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 228 251 209 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 162 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 145 284 129 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 372 598 146 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 223 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 147 68 21 Telecom Argentina Stet-France 6505 130 90 87 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 105 7 15 TELEFONICA MANQUEHUE 6503 104 146 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 87 24 22 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 14522 79 8 7 SatNet 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 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 41 6 3 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 1100 877 Time Warner Telecom 721 1116 804 DLA Systems Automation Center 18566 791 784 Covad Communications 4134 901 719 CHINANET-BACKBONE 9583 718 652 Sify Limited 27364 518 500 Armstrong Cable Services 6197 887 477 BellSouth Network Solutions, 5668 489 464 CenturyTel Internet Holdings, 22773 479 458 Cox Communications, Inc. 4755 544 432 Videsh Sanchar Nigam Ltd. Aut 7545 488 417 TPG Internet Pty Ltd 3602 505 413 Sprint Canada, Inc. 6467 440 405 E.Spire Communications, Inc. 17676 430 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 357 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 20115 607 299 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 33058 UNALLOCATED 198.22.153.0/24 16852 Focal Data Communica 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 /14:309 /15:586 /16:8375 /17:2529 /18:4346 /19:10219 /20:10972 /21:8885 /22:12205 /23:13254 /24:87641 /25:288 /26:264 /27:134 /28:76 /29:37 /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 731 887 BellSouth Network Solutions, 7018 666 1482 AT&T WorldNet Services 2386 595 841 AT&T Data Communications Serv 9583 535 718 Sify Limited 4323 514 1100 Time Warner Telecom 27364 506 518 Armstrong Cable Services 5668 407 489 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 383 916 Sprint 702 365 593 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 282 357 China Netcom Corp. 11456 273 320 Carolina Online, Inc. 15270 254 274 PaeTec.net -a division of Pae 3320 249 304 Deutsche Telekom AG
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 12:1518 13:1 15:9 16:2 17:3 18:4 20:4 24:871 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:40 59:25 60:21 61:724 62:581 63:1874 64:2677 65:2085 66:2765 67:550 68:515 69:983 70:92 71:6 72:143 80:551 81:536 82:394 83:238 84:149 85:171 86:1 128:144 129:158 130:88 131:280 132:36 133:1 134:150 135:41 136:187 137:66 138:172 139:56 140:191 141:106 142:138 143:129 144:171 145:32 146:280 147:104 148:293 149:169 150:98 151:63 152:107 153:87 154:5 155:143 156:77 157:90 158:167 159:172 160:75 161:60 162:202 163:84 164:205 165:176 166:154 167:232 168:417 169:139 170:307 171:8 172:2 192:5704 193:3170 194:2332 195:1553 196:650 198:3913 199:3282 200:4013 201:114 202:5489 203:6135 204:3813 205:2027 206:2459 207:2752 208:2083 209:3284 210:1694 211:848 212:1188 213:1286 214:272 215:32 216:3588 217:1138 218:189 219:107 220:360 221:193 222:90
End of report
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