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Routing Table Report 04:00 +10GMT Tue 12 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 159521 Prefixes after maximum aggregation: 92922 Unique aggregates announced to Internet: 76730 Total ASes present in the Internet Routing Table: 19351 Origin-only ASes present in the Internet Routing Table: 16836 Origin ASes announcing only one prefix: 7864 Transit ASes present in the Internet Routing Table: 2515 Transit-only ASes present in the Internet Routing Table: 69 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: 47 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1380297600 Equivalent to 82 /8s, 69 /16s and 171 /24s Percentage of available address space announced: 37.2 Percentage of allocated address space announced: 58.5 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 74423
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32500 Total APNIC prefixes after maximum aggregation: 15374 Prefixes being announced from the APNIC address blocks: 30428 Unique aggregates announced from the APNIC address blocks: 15364 APNIC Region origin ASes present in the Internet Routing Table: 2257 APNIC Region origin ASes announcing only one prefix: 657 APNIC Region transit ASes present in the Internet Routing Table: 340 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 181292160 Equivalent to 10 /8s, 206 /16s and 76 /24s Percentage of available APNIC address space announced: 67.3
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: 86692 Total ARIN prefixes after maximum aggregation: 52901 Prefixes being announced from the ARIN address blocks: 67614 Unique aggregates announced from the ARIN address blocks: 24846 ARIN Region origin ASes present in the Internet Routing Table: 9811 ARIN Region origin ASes announcing only one prefix: 3546 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: 244047872 Equivalent to 14 /8s, 139 /16s and 224 /24s Percentage of available ARIN address space announced: 69.3
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 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: 30274 Total RIPE prefixes after maximum aggregation: 20952 Prefixes being announced from the RIPE address blocks: 27305 Unique aggregates announced from the RIPE address blocks: 18203 RIPE Region origin ASes present in the Internet Routing Table: 6519 RIPE Region origin ASes announcing only one prefix: 3442 RIPE Region transit ASes present in the Internet Routing Table: 1092 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 200962752 Equivalent to 11 /8s, 250 /16s and 114 /24s Percentage of available RIPE address space announced: 70.5
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: 8575 Total LACNIC prefixes after maximum aggregation: 2997 Prefixes being announced from the LACNIC address blocks: 6985 Unique aggregates announced from the LACNIC address blocks: 4019 LACNIC Region origin ASes present in the Internet Routing Table: 613 LACNIC Region origin ASes announcing only one prefix: 192 LACNIC Region transit ASes present in the Internet Routing Table: 115 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 18049792 Equivalent to 1 /8s, 19 /16s and 107 /24s Percentage of available LACNIC address space announced: 53.8
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: 1429 Total AfriNIC prefixes after maximum aggregation: 698 Prefixes being announced from the AfriNIC address blocks: 916 Unique aggregates announced from the AfriNIC address blocks: 734 AfriNIC Region origin ASes present in the Internet Routing Table: 100 AfriNIC Region origin ASes announcing only one prefix: 27 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: 2194944 Equivalent to 0 /8s, 33 /16s and 126 /24s Percentage of available AfriNIC address space announced: 13.1
AfriNIC AS Blocks ERX transfers AfriNIC Address Blocks 196/8
APNIC Region per AS prefix count summary ----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4134 899 4835 179 CHINANET-BACKBONE 1221 779 1193 554 Telstra Pty Ltd 9583 702 52 46 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 543 243 111 Videsh Sanchar Nigam Ltd. Aut 7545 437 85 65 TPG Internet Pty Ltd 17676 428 6476 73 Softbank BB Corp. 9443 370 77 76 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 347 1838 321 SINET Japan 17557 335 24 153 Pakistan Telecom 10036 311 28 283 C&M Communication Co. Ltd. 4808 303 250 165 CNCGROUP IP network: China169 7474 295 268 213 SingTel Optus Pty Ltd 4802 279 47 164 Wantree Development 2764 261 238 199 AAPT Limited 9498 261 82 53 BHARTI BT INTERNET LTD. 703 256 279 210 UUNET - Commercial IP service 9800 238 386 69 CHINA UNICOM 17974 238 63 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1471 6530 963 AT&T WorldNet Services 721 1118 21747 313 DLA Systems Automation Center 4323 1092 663 220 Time Warner Telecom 174 1082 5584 920 Cogent Communications 701 1009 8281 858 UUNET Technologies, Inc. 1239 914 2877 661 Sprint 6197 886 384 414 BellSouth Network Solutions, 2386 842 532 623 AT&T Data Communications Serv 18566 788 224 7 Covad Communications 209 646 3475 500 Qwest 20115 600 496 311 Charter Communications 3356 585 10852 434 Level 3 Communications, LLC 3561 542 2370 415 Savvis 852 538 1095 397 Telus Advanced Communications 3602 508 121 93 Sprint Canada, Inc. 27364 504 43 18 Armstrong Cable Services 5668 484 115 25 CenturyTel Internet Holdings, 22773 475 1188 21 Cox Communications, Inc. 6198 458 380 215 BellSouth Network Solutions, 6467 444 143 35 E.Spire Communications, Inc.
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 598 2003 489 UUNET - Commercial IP service 3320 303 2993 237 Deutsche Telekom AG 3301 298 1117 288 TeliaNet Sweden 8220 276 468 269 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 231 475 226 Song Networks 8708 227 251 208 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 161 47 141 Dynamic Network Technologies, 719 157 322 99 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 143 281 127 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 127 2305 115 BTnet UK Regional network
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 350 529 146 UniNet S.A. de C.V. 16814 266 16 7 NSS, S.A. 11172 217 99 53 Servicios Alestra S.A de C.V 6147 205 102 20 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 7303 156 68 25 Telecom Argentina Stet-France 11664 154 19 23 Keytech SA 6505 131 90 88 Global One Communicaoes Ltda 22047 122 96 6 VTR PUNTO NET S.A. 14117 119 8 4 Telefonica del Sur S.A. 6503 108 147 75 AVANTEL, S.A. 13999 103 52 9 Mega Cable S.A. de C.V. 18822 103 6 15 TELEFONICA MANQUEHUE 11556 99 49 5 Cable-Wireless Panama 19169 95 6 16 Telconet 23216 89 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 121 15 14 Internet Egypt Network 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 74 266 68 The Internetworking Company o 8452 64 20 5 TEDATA 24835 59 34 6 RAYA Telecom - Egypt 9129 42 3 3 UUNET Kenya 12455 42 7 5 Jambonet Autonomous system 5713 35 141 28 Telkom SA Ltd 6713 35 54 9 Itissalat Al-MAGHRIB 8524 24 1 4 AUCEGYPT Autonomous System 15475 22 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 21280 18 2 3 Swift Global Kenya Ltd.Is an 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
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 0 0 65531 * 4323 1092 872 Time Warner Telecom 721 1118 805 DLA Systems Automation Center 18566 788 781 Covad Communications 4134 899 720 CHINANET-BACKBONE 9583 702 656 Sify Limited 27364 504 486 Armstrong Cable Services 6197 886 472 BellSouth Network Solutions, 5668 484 459 CenturyTel Internet Holdings, 22773 475 454 Cox Communications, Inc. 4755 543 432 Videsh Sanchar Nigam Ltd. Aut 3602 508 415 Sprint Canada, Inc. 6467 444 409 E.Spire Communications, Inc. 7545 437 372 TPG Internet Pty Ltd 17676 428 355 Softbank BB Corp. 6140 395 324 ImpSat 9929 358 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 9443 370 294 Primus Telecommunications 20115 600 289 Charter Communications
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 35899 UNALLOCATED 12.19.70.0/24 7018 AT&T WorldNet Servic 35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication 35884 UNALLOCATED 38.118.171.0/24 10912 InterNAP Network Ser 35894 UNALLOCATED 63.118.207.0/24 6128 Cablevision Systems 35884 UNALLOCATED 64.74.164.0/24 10912 InterNAP Network Ser 35884 UNALLOCATED 64.74.165.0/24 10912 InterNAP Network Ser 35884 UNALLOCATED 64.74.166.0/24 10912 InterNAP Network Ser 35884 UNALLOCATED 64.74.167.0/24 10912 InterNAP Network Ser 35892 UNALLOCATED 64.124.52.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.105.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.106.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 64.125.110.0/24 6461 AboveNet Communicati 35890 UNALLOCATED 64.193.55.0/24 209 Qwest 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 35895 UNALLOCATED 72.5.143.0/24 10910 InterNAP Network Ser 65503 PRIVATE 193.125.183.0/24 3217 SIMBIRSK 30999 UNALLOCATED 196.192.80.0/24 6774 BELGACOM 35857 UNALLOCATED 199.107.188.0/24 4323 Time Warner Telecom 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 65056 PRIVATE 200.47.114.0/23 11664 Keytech SA 35875 UNALLOCATED 204.117.76.0/24 1239 Sprint 35866 UNALLOCATED 206.13.80.0/24 7132 SBC Internet Service 35849 UNALLOCATED 206.170.102.0/24 174 Cogent Communication 35892 UNALLOCATED 208.184.1.0/24 6461 AboveNet Communicati 35850 UNALLOCATED 209.139.6.0/24 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.22.0/23 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.56.0/22 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.108.0/23 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.110.0/24 3356 Level 3 Communicatio 35850 UNALLOCATED 209.139.180.0/24 3356 Level 3 Communicatio 35892 UNALLOCATED 209.249.93.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 209.249.94.0/24 6461 AboveNet Communicati 35892 UNALLOCATED 209.249.95.0/24 6461 AboveNet Communicati 65444 PRIVATE 212.25.125.0/24 8551 Bezeq International 35892 UNALLOCATED 216.14.0.0/19 6461 AboveNet Communicati 65529 PRIVATE 216.21.199.0/24 14697 VDot.Net 65529 PRIVATE 216.152.237.0/24 14697 VDot.Net 35892 UNALLOCATED 216.200.243.0/24 6461 AboveNet Communicati
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 /12:67 /13:152 /14:307 /15:576 /16:8347 /17:2511 /18:4300 /19:10183 /20:10888 /21:8752 /22:12087 /23:13186 /24:87223 /25:284 /26:269 /27:141 /28:72 /29:35 /30:66 /31:0 /32:31
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 772 788 Covad Communications 6197 727 886 BellSouth Network Solutions, 7018 654 1471 AT&T WorldNet Services 2386 597 842 AT&T Data Communications Serv 9583 521 702 Sify Limited 4323 509 1092 Time Warner Telecom 27364 491 504 Armstrong Cable Services 5668 404 484 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 380 914 Sprint 702 365 598 UUNET - Commercial IP service 6198 336 458 BellSouth Network Solutions, 6467 323 444 E.Spire Communications, Inc. 10036 311 311 C&M Communication Co. Ltd. 6517 290 313 Yipes Communications, Inc. 9929 282 358 China Netcom Corp. 7011 280 329 Citizens Utilities 11456 268 315 Carolina Online, Inc. 15270 252 272 PaeTec.net -a division of Pae 3320 248 303 Deutsche Telekom AG
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 10:6 12:1518 13:1 15:9 16:2 17:3 18:4 20:4 24:793 28:2 31:1 32:63 33:4 38:106 40:53 44:8 47:2 50:1 52:12 54:1 55:3 56:3 57:23 58:37 59:23 60:19 61:736 62:578 63:1881 64:2655 65:2078 66:2738 67:519 68:512 69:962 70:83 71:6 72:131 80:544 81:530 82:375 83:246 84:147 85:158 128:139 129:157 130:89 131:280 132:34 133:1 134:145 135:41 136:191 137:66 138:175 139:56 140:192 141:106 142:137 143:130 144:171 145:32 146:280 147:102 148:296 149:170 150:98 151:63 152:107 153:87 154:4 155:144 156:69 157:89 158:167 159:172 160:73 161:60 162:200 163:87 164:204 165:160 166:154 167:229 168:416 169:137 170:312 171:8 172:2 192:5682 193:3146 194:2325 195:1539 196:642 198:3932 199:3276 200:4007 201:114 202:5471 203:6123 204:3816 205:2015 206:2441 207:2725 208:2079 209:3276 210:1689 211:818 212:1180 213:1267 214:273 215:31 216:3694 217:1158 218:186 219:104 220:371 221:168 222:76
End of report
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