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Routing Table Report 04:00 +10GMT Wed 06 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 158926 Prefixes after maximum aggregation: 92690 Unique aggregates announced to Internet: 76522 Total ASes present in the Internet Routing Table: 19288 Origin-only ASes present in the Internet Routing Table: 16794 Origin ASes announcing only one prefix: 7812 Transit ASes present in the Internet Routing Table: 2494 Transit-only ASes present in the Internet Routing Table: 65 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: 14 Number of addresses announced to Internet: 1395436164 Equivalent to 83 /8s, 44 /16s and 170 /24s Percentage of available address space announced: 37.6 Percentage of allocated address space announced: 59.1 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74148
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32322 Total APNIC prefixes after maximum aggregation: 15329 Prefixes being announced from the APNIC address blocks: 30261 Unique aggregates announced from the APNIC address blocks: 15375 APNIC Region origin ASes present in the Internet Routing Table: 2237 APNIC Region origin ASes announcing only one prefix: 650 APNIC Region transit ASes present in the Internet Routing Table: 339 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 180937344 Equivalent to 10 /8s, 200 /16s and 226 /24s Percentage of available APNIC address space announced: 67.1
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: 86520 Total ARIN prefixes after maximum aggregation: 52806 Prefixes being announced from the ARIN address blocks: 67518 Unique aggregates announced from the ARIN address blocks: 24777 ARIN Region origin ASes present in the Internet Routing Table: 9804 ARIN Region origin ASes announcing only one prefix: 3545 ARIN Region transit ASes present in the Internet Routing Table: 920 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 19 Number of ARIN addresses announced to Internet: 243560704 Equivalent to 14 /8s, 132 /16s and 113 /24s Percentage of available ARIN address space announced: 69.1
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, 70/6, 198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 30117 Total RIPE prefixes after maximum aggregation: 20858 Prefixes being announced from the RIPE address blocks: 27186 Unique aggregates announced from the RIPE address blocks: 18098 RIPE Region origin ASes present in the Internet Routing Table: 6482 RIPE Region origin ASes announcing only one prefix: 3403 RIPE Region transit ASes present in the Internet Routing Table: 1080 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 200108740 Equivalent to 11 /8s, 237 /16s and 106 /24s Percentage of available RIPE address space announced: 70.2
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: 8515 Total LACNIC prefixes after maximum aggregation: 2995 Prefixes being announced from the LACNIC address blocks: 6901 Unique aggregates announced from the LACNIC address blocks: 4006 LACNIC Region origin ASes present in the Internet Routing Table: 610 LACNIC Region origin ASes announcing only one prefix: 190 LACNIC Region transit ASes present in the Internet Routing Table: 109 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 18005760 Equivalent to 1 /8s, 18 /16s and 191 /24s Percentage of available LACNIC address space announced: 53.7
LACNIC AS Blocks 26592-26623, 27648-28671 LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary ----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1422 Total AfriNIC prefixes after maximum aggregation: 702 Prefixes being announced from the AfriNIC address blocks: 906 Unique aggregates announced from the AfriNIC address blocks: 726 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: 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: 2190336 Equivalent to 0 /8s, 33 /16s and 108 /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 897 4843 180 CHINANET-BACKBONE 1221 783 1189 556 Telstra Pty Ltd 9583 697 52 43 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 527 242 114 Videsh Sanchar Nigam Ltd. Aut 7545 471 86 68 TPG Internet Pty Ltd 17676 427 6460 72 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 348 1839 322 SINET Japan 17557 335 24 155 Pakistan Telecom 10036 306 28 279 C&M Communication Co. Ltd. 4808 305 250 166 CNCGROUP IP network: China169 7474 295 268 213 SingTel Optus Pty Ltd 4802 282 47 167 Wantree Development 9498 262 82 53 BHARTI BT INTERNET LTD. 703 254 279 208 UUNET - Commercial IP service 2764 253 238 202 AAPT Limited 17974 238 63 12 PT TELEKOMUNIKASI INDONESIA 9800 235 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1471 6530 964 AT&T WorldNet Services 721 1120 21763 314 DLA Systems Automation Center 4323 1090 663 222 Time Warner Telecom 174 1038 5580 880 Cogent Communications 701 1010 8282 861 UUNET Technologies, Inc. 1239 902 2867 654 Sprint 6197 886 384 414 BellSouth Network Solutions, 2386 843 532 625 AT&T Data Communications Serv 18566 787 209 7 Covad Communications 209 647 3475 502 Qwest 20115 599 495 310 Charter Communications 3356 580 10851 430 Level 3 Communications, LLC 852 538 1095 397 Telus Advanced Communications 3561 538 2368 413 Savvis 3602 508 121 93 Sprint Canada, Inc. 5668 478 115 25 CenturyTel Internet Holdings, 22773 476 1188 21 Cox Communications, Inc. 6198 468 541 199 BellSouth Network Solutions, 27364 466 43 18 Armstrong Cable Services 6467 447 143 35 E.Spire Communications, Inc.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 600 2003 490 UUNET - Commercial IP service 3320 303 2993 237 Deutsche Telekom AG 3301 297 1117 287 TeliaNet Sweden 8220 276 468 270 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 476 226 Song Networks 8708 228 251 207 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 162 47 142 Dynamic Network Technologies, 719 156 322 98 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 143 281 126 BT Ignite European Backbone 25186 139 137 97 France Telecom Transpac's Tra 6830 137 513 27 UPC Distribution Services 9051 128 8 34 INCONET Autonomous System 2856 126 2304 113 BTnet UK Regional network
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 351 529 145 UniNet S.A. de C.V. 16814 233 14 6 NSS, S.A. 11172 215 99 52 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 7303 155 67 28 Telecom Argentina Stet-France 11664 153 19 23 Keytech SA 6505 131 90 87 Global One Communicaoes Ltda 14117 119 8 4 Telefonica del Sur S.A. 22047 111 96 6 VTR PUNTO NET S.A. 6503 106 146 75 AVANTEL, S.A. 18822 103 6 15 TELEFONICA MANQUEHUE 13999 100 52 9 Mega Cable S.A. de C.V. 11556 99 49 5 Cable-Wireless Panama 19169 95 6 16 Telconet 23216 86 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 268 635 225 The Internet Solution 5536 117 15 17 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 66 20 5 TEDATA 24835 55 34 6 RAYA Telecom - Egypt 9129 41 3 3 UUNET Kenya 12455 41 7 4 Jambonet Autonomous system 6713 37 54 9 Itissalat Al-MAGHRIB 5713 35 141 28 Telkom SA Ltd 8524 24 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 15475 20 84 4 Nile Online 10798 19 1 11 Standard Bank of South Africa 7460 18 3 5 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 21280 17 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 1090 868 Time Warner Telecom 721 1120 806 DLA Systems Automation Center 18566 787 780 Covad Communications 4134 897 717 CHINANET-BACKBONE 9583 697 654 Sify Limited 6197 886 472 BellSouth Network Solutions, 22773 476 455 Cox Communications, Inc. 5668 478 453 CenturyTel Internet Holdings, 27364 466 448 Armstrong Cable Services 3602 508 415 Sprint Canada, Inc. 4755 527 413 Videsh Sanchar Nigam Ltd. Aut 6467 447 412 E.Spire Communications, Inc. 7545 471 403 TPG Internet Pty Ltd 17676 427 355 Softbank BB Corp. 9929 358 313 China Netcom Corp. 6140 383 312 ImpSat 4766 586 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications 20115 599 289 Charter Communications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication 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 35868 UNALLOCATED 65.88.163.192/26 6395 Broadwing Communicat 35871 UNALLOCATED 66.7.178.0/23 6517 Yipes Communications 35868 UNALLOCATED 68.143.179.64/26 6395 Broadwing Communicat 64500 RESERVED 85.114.96.0/21 1680 NetVision Ltd. 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom 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 /8:19 /9:3 /10:8 /11:15 /12:67 /13:151 /14:307 /15:577 /16:8334 /17:2509 /18:4297 /19:10160 /20:10879 /21:8711 /22:12025 /23:13148 /24:86822 /25:281 /26:264 /27:134 /28:61 /29:23 /30:88 /31:0 /32:43
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 772 787 Covad Communications 6197 727 886 BellSouth Network Solutions, 7018 651 1471 AT&T WorldNet Services 2386 596 843 AT&T Data Communications Serv 9583 516 697 Sify Limited 4323 504 1090 Time Warner Telecom 27364 451 466 Armstrong Cable Services 4766 402 586 Korea Telecom (KIX) 5668 402 478 CenturyTel Internet Holdings, 1239 374 902 Sprint 702 367 600 UUNET - Commercial IP service 6198 337 468 BellSouth Network Solutions, 6467 325 447 E.Spire Communications, Inc. 10036 306 306 C&M Communication Co. Ltd. 6517 290 313 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 264 311 Carolina Online, Inc. 15270 251 270 PaeTec.net -a division of Pae 3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 12:1515 13:1 15:9 16:2 17:3 18:4 20:4 24:748 28:2 31:1 32:64 33:3 38:103 40:54 44:3 47:2 52:3 55:2 56:3 57:23 58:38 59:19 60:25 61:738 62:558 63:1873 64:2651 65:2081 66:2737 67:515 68:508 69:960 70:79 71:6 72:125 80:540 81:523 82:372 83:258 84:143 85:164 128:138 129:158 130:89 131:280 132:34 133:1 134:144 135:41 136:191 137:67 138:160 139:54 140:193 141:106 142:137 143:130 144:173 145:32 146:282 147:100 148:293 149:169 150:97 151:63 152:107 153:87 154:4 155:141 156:69 157:87 158:167 159:172 160:72 161:60 162:201 163:83 164:205 165:159 166:153 167:230 168:415 169:137 170:312 171:8 172:2 192:5661 193:3127 194:2316 195:1541 196:631 198:3933 199:3278 200:3987 201:79 202:5359 203:6138 204:3796 205:2009 206:2439 207:2724 208:2071 209:3276 210:1686 211:830 212:1192 213:1274 214:244 215:31 216:3682 217:1154 218:186 219:102 220:370 221:155 222:75
End of report
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