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Routing Table Report 04:00 +10GMT Fri 08 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 155568 Prefixes after maximum aggregation: 91755 Unique aggregates announced to Internet: 75325 Total ASes present in the Internet Routing Table: 19272 Origin-only ASes present in the Internet Routing Table: 16768 Origin ASes announcing only one prefix: 7843 Transit ASes present in the Internet Routing Table: 2504 Transit-only ASes present in the Internet Routing Table: 66 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: 32 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1318962816 Equivalent to 78 /8s, 157 /16s and 198 /24s Percentage of available address space announced: 35.6 Percentage of allocated address space announced: 55.9 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 72650
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 28872 Total APNIC prefixes after maximum aggregation: 14248 Prefixes being announced from the APNIC address blocks: 26809 Unique aggregates announced from the APNIC address blocks: 14058 APNIC Region origin ASes present in the Internet Routing Table: 2199 APNIC Region origin ASes announcing only one prefix: 668 APNIC Region transit ASes present in the Internet Routing Table: 333 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 120723072 Equivalent to 7 /8s, 50 /16s and 22 /24s Percentage of available APNIC address space announced: 44.8
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: 86544 Total ARIN prefixes after maximum aggregation: 52912 Prefixes being announced from the ARIN address blocks: 67541 Unique aggregates announced from the ARIN address blocks: 24821 ARIN Region origin ASes present in the Internet Routing Table: 9808 ARIN Region origin ASes announcing only one prefix: 3543 ARIN Region transit ASes present in the Internet Routing Table: 922 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 243746560 Equivalent to 14 /8s, 135 /16s and 71 /24s Percentage of available ARIN address space announced: 69.2
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: 30184 Total RIPE prefixes after maximum aggregation: 20893 Prefixes being announced from the RIPE address blocks: 27228 Unique aggregates announced from the RIPE address blocks: 18160 RIPE Region origin ASes present in the Internet Routing Table: 6502 RIPE Region origin ASes announcing only one prefix: 3417 RIPE Region transit ASes present in the Internet Routing Table: 1091 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 200742336 Equivalent to 11 /8s, 247 /16s and 21 /24s Percentage of available RIPE address space announced: 70.4
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: 8521 Total LACNIC prefixes after maximum aggregation: 3000 Prefixes being announced from the LACNIC address blocks: 6899 Unique aggregates announced from the LACNIC address blocks: 4010 LACNIC Region origin ASes present in the Internet Routing Table: 611 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: 18014720 Equivalent to 1 /8s, 18 /16s and 226 /24s Percentage of available LACNIC address space announced: 53.7
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 200/7
Emerging AfriNIC Region Analysis Summary ----------------------------------------
Prefixes being announced by AfriNIC Region ASes: 1409 Total AfriNIC prefixes after maximum aggregation: 702 Prefixes being announced from the AfriNIC address blocks: 912 Unique aggregates announced from the AfriNIC address blocks: 727 AfriNIC Region origin ASes present in the Internet Routing Table: 98 AfriNIC Region origin ASes announcing only one prefix: 25 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: 2194432 Equivalent to 0 /8s, 33 /16s and 124 /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 1221 778 1193 553 Telstra Pty Ltd 4134 636 2627 139 CHINANET-BACKBONE 9583 585 44 11 Sify Limited 4755 482 211 112 Videsh Sanchar Nigam Ltd. Aut 4766 413 1957 167 Korea Telecom (KIX) 9443 370 77 76 Primus Telecommunications 2907 348 1839 322 SINET Japan 17557 336 24 155 Pakistan Telecom 9929 311 151 27 China Netcom Corp. 10036 309 28 281 C&M Communication Co. Ltd. 7474 295 268 213 SingTel Optus Pty Ltd 4802 282 47 166 Wantree Development 9498 261 82 53 BHARTI BT INTERNET LTD. 703 252 273 207 UUNET - Commercial IP service 2764 252 238 201 AAPT Limited 7545 244 51 36 TPG Internet Pty Ltd 4808 234 171 131 CNCGROUP IP network: China169 18302 218 42 130 SK Global co., Ltd 7563 216 48 159 Korea Internet Infrastructure 17488 213 15 11 Hathway IP Over Cable Interne
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1473 6530 965 AT&T WorldNet Services 721 1118 21763 314 DLA Systems Automation Center 4323 1091 663 220 Time Warner Telecom 174 1081 5584 919 Cogent Communications 701 1009 8266 858 UUNET Technologies, Inc. 1239 915 2877 661 Sprint 6197 886 384 414 BellSouth Network Solutions, 2386 842 532 624 AT&T Data Communications Serv 18566 788 224 7 Covad Communications 209 647 3475 500 Qwest 20115 600 496 311 Charter Communications 3356 585 10852 434 Level 3 Communications, LLC 3561 540 2368 414 Savvis 852 538 1095 397 Telus Advanced Communications 3602 508 121 93 Sprint Canada, Inc. 27364 504 43 18 Armstrong Cable Services 5668 478 115 25 CenturyTel Internet Holdings, 22773 474 1188 21 Cox Communications, Inc. 6198 459 380 215 BellSouth Network Solutions, 6467 447 143 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 302 2993 236 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 232 476 226 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 142 281 126 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 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 234 14 7 NSS, S.A. 11172 215 99 52 Servicios Alestra S.A de C.V 6147 191 100 22 Telefonica Del Peru 19632 190 14 7 Metropolis Intercom S.A. 7303 156 68 25 Telecom Argentina Stet-France 11664 153 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 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 88 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 2018 90 295 87 Tertiary Education Network 20928 90 16 2 Noor Advanced Technologies AS 2905 74 266 68 The Internetworking Company o 8452 60 20 5 TEDATA 24835 59 34 6 RAYA Telecom - Egypt 9129 42 3 3 UUNET Kenya 12455 41 7 4 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 65530 * 4323 1091 871 Time Warner Telecom 721 1118 804 DLA Systems Automation Center 18566 788 781 Covad Communications 9583 585 574 Sify Limited 4134 636 497 CHINANET-BACKBONE 27364 504 486 Armstrong Cable Services 6197 886 472 BellSouth Network Solutions, 5668 478 453 CenturyTel Internet Holdings, 22773 474 453 Cox Communications, Inc. 3602 508 415 Sprint Canada, Inc. 6467 447 412 E.Spire Communications, Inc. 4755 482 370 Videsh Sanchar Nigam Ltd. Aut 6140 383 312 ImpSat 9443 370 294 Primus Telecommunications 20115 600 289 Charter Communications 6478 378 288 AT&T Worldnet Services 9929 311 284 China Netcom Corp. 376 391 276 Reseau Interordinateurs Scien 11456 311 264 Carolina Online, Inc.
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 35864 UNALLOCATED 38.117.202.0/24 174 Cogent Communication 35884 UNALLOCATED 38.118.171.0/24 10912 InterNAP Network Ser 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 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 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 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 35875 UNALLOCATED 204.117.76.0/24 1239 Sprint 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 192.44.0.0/24 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 /11:14 /12:63 /13:132 /14:284 /15:522 /16:7875 /17:2324 /18:3992 /19:9705 /20:10524 /21:8434 /22:11691 /23:12913 /24:86194 /25:273 /26:261 /27:132 /28:72 /29:37 /30:68 /31:0 /32:29
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 1473 AT&T WorldNet Services 2386 596 842 AT&T Data Communications Serv 4323 507 1091 Time Warner Telecom 27364 491 504 Armstrong Cable Services 9583 406 585 Sify Limited 5668 402 478 CenturyTel Internet Holdings, 1239 381 915 Sprint 702 365 598 UUNET - Commercial IP service 6198 336 459 BellSouth Network Solutions, 6467 325 447 E.Spire Communications, Inc. 10036 309 309 C&M Communication Co. Ltd. 6517 289 312 Yipes Communications, Inc. 7011 280 329 Citizens Utilities 11456 264 311 Carolina Online, Inc. 15270 251 270 PaeTec.net -a division of Pae 9929 248 311 China Netcom Corp. 3320 247 302 Deutsche Telekom AG 4766 246 413 Korea Telecom (KIX)
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 10:6 12:1517 13:1 15:9 16:2 17:3 18:4 20:4 24:795 28:2 31:1 32:64 33:4 38:104 40:53 44:7 47:2 52:12 55:3 56:3 57:23 58:37 59:22 60:25 61:739 62:574 63:1879 64:2642 65:2080 66:2743 67:519 68:508 69:963 70:79 71:6 72:127 80:539 81:527 82:371 83:255 84:139 85:166 128:140 129:160 130:89 131:281 132:33 133:1 134:145 135:41 136:192 137:67 138:164 139:55 140:193 141:106 142:137 143:129 144:173 145:32 146:281 147:102 148:293 149:169 150:97 151:63 152:107 153:87 154:4 155:144 156:69 157:89 158:167 159:172 160:73 161:60 162:201 163:83 164:202 165:159 166:153 167:228 168:416 169:137 170:311 171:8 172:2 192:5669 193:3112 194:2321 195:1546 196:636 198:3912 199:3272 200:3965 201:80 202:5434 203:6064 204:3816 205:2015 206:2439 207:2729 208:2081 209:3277 210:1673 211:833 212:1178 213:1276 214:243 215:31 216:3687 217:1154 218:186
End of report
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