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Routing Table Report 04:00 +10GMT Mon 25 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 160566 Prefixes after maximum aggregation: 93383 Unique aggregates announced to Internet: 77305 Total ASes present in the Internet Routing Table: 19478 Origin-only ASes present in the Internet Routing Table: 16943 Origin ASes announcing only one prefix: 7944 Transit ASes present in the Internet Routing Table: 2535 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: 29 Prefixes from unregistered ASNs in the Routing Table: 15 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1401393472 Equivalent to 83 /8s, 135 /16s and 145 /24s Percentage of available address space announced: 37.8 Percentage of allocated address space announced: 59.4 Percentage of available address space allocated: 63.7 Total number of prefixes smaller than registry allocations: 75056
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32794 Total APNIC prefixes after maximum aggregation: 15443 Prefixes being announced from the APNIC address blocks: 30725 Unique aggregates announced from the APNIC address blocks: 15495 APNIC Region origin ASes present in the Internet Routing Table: 2249 APNIC Region origin ASes announcing only one prefix: 661 APNIC Region transit ASes present in the Internet Routing Table: 345 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 181963136 Equivalent to 10 /8s, 216 /16s and 137 /24s Percentage of available APNIC address space announced: 67.5
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: 87200 Total ARIN prefixes after maximum aggregation: 53179 Prefixes being announced from the ARIN address blocks: 68031 Unique aggregates announced from the ARIN address blocks: 25011 ARIN Region origin ASes present in the Internet Routing Table: 9882 ARIN Region origin ASes announcing only one prefix: 3589 ARIN Region transit ASes present in the Internet Routing Table: 933 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 246558464 Equivalent to 14 /8s, 178 /16s and 47 /24s Percentage of available ARIN address space announced: 70.0
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: 30499 Total RIPE prefixes after maximum aggregation: 21058 Prefixes being announced from the RIPE address blocks: 27535 Unique aggregates announced from the RIPE address blocks: 18391 RIPE Region origin ASes present in the Internet Routing Table: 6572 RIPE Region origin ASes announcing only one prefix: 3473 RIPE Region transit ASes present in the Internet Routing Table: 1104 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 29 Number of RIPE addresses announced to Internet: 201827264 Equivalent to 12 /8s, 7 /16s and 163 /24s Percentage of available RIPE address space announced: 70.8
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: 8623 Total LACNIC prefixes after maximum aggregation: 2999 Prefixes being announced from the LACNIC address blocks: 7041 Unique aggregates announced from the LACNIC address blocks: 4068 LACNIC Region origin ASes present in the Internet Routing Table: 611 LACNIC Region origin ASes announcing only one prefix: 195 LACNIC Region transit ASes present in the Internet Routing Table: 110 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18441472 Equivalent to 1 /8s, 25 /16s and 101 /24s Percentage of available LACNIC address space announced: 55.0
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: 1433 Total AfriNIC prefixes after maximum aggregation: 704 Prefixes being announced from the AfriNIC address blocks: 940 Unique aggregates announced from the AfriNIC address blocks: 744 AfriNIC Region origin ASes present in the Internet Routing Table: 99 AfriNIC Region origin ASes announcing only one prefix: 26 AfriNIC Region transit ASes present in the Internet Routing Table: 13 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 13 Number of AfriNIC addresses announced to Internet: 2206976 Equivalent to 0 /8s, 33 /16s and 173 /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 771 1192 548 Telstra Pty Ltd 9583 719 52 67 Sify Limited 4766 584 3413 275 Korea Telecom (KIX) 4755 545 243 112 Videsh Sanchar Nigam Ltd. Aut 7545 487 86 70 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 320 23 154 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 309 251 169 CNCGROUP IP network: China169 7474 298 268 209 SingTel Optus Pty Ltd 9498 284 82 52 BHARTI BT INTERNET LTD. 4802 279 47 164 Wantree Development 2764 260 238 198 AAPT Limited 703 257 279 211 UUNET - Commercial IP service 17974 244 65 13 PT TELEKOMUNIKASI INDONESIA 9800 242 386 69 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1482 6515 958 AT&T WorldNet Services 174 1137 5604 969 Cogent Communications 721 1106 21747 312 DLA Systems Automation Center 4323 1100 665 224 Time Warner Telecom 701 1003 8282 857 UUNET Technologies, Inc. 1239 916 2876 663 Sprint 6197 893 388 414 BellSouth Network Solutions, 2386 840 532 622 AT&T Data Communications Serv 18566 792 224 7 Covad Communications 209 650 3459 497 Qwest 20115 608 502 309 Charter Communications 3356 583 10836 437 Level 3 Communications, LLC 3561 541 2361 414 Savvis 852 531 1095 393 Telus Advanced Communications 27364 518 43 18 Armstrong Cable Services 3602 506 122 94 Sprint Canada, Inc. 5668 489 115 25 CenturyTel Internet Holdings, 22773 479 1188 21 Cox Communications, Inc. 6198 460 439 206 BellSouth Network Solutions, 6467 442 143 35 E.Spire Communications, Inc.
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 227 251 209 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 164 47 143 Dynamic Network Technologies, 8866 160 21 12 Bulgarian Telecommunication C 719 159 340 101 LANLINK autonomous system 3300 152 184 85 AUCS Communications Services 5400 142 284 128 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 373 598 147 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 110 55 6 Cable-Wireless Panama 18822 105 7 15 TELEFONICA MANQUEHUE 6503 104 146 74 AVANTEL, S.A. 13999 102 52 9 Mega Cable S.A. de C.V. 10481 101 40 7 Prima S.A. 19169 97 6 15 Telconet 23216 89 24 22 RAMtelecom Telecomunicaciones 11311 85 8 21 Sinectis S.A. 5639 84 12 9 Telecommunications Services o 22927 80 65 21 TELEFONICA DE ARGENTINA
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 42 7 4 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 2609 17 26 3 Tunisia BackBone AS 7460 17 3 4 LIA Internet Access 12258 17 3 11 Vodacom Internet Company 15808 16 1 1 Communication Solutions Ltd i 21280 16 2 3 Swift Global Kenya Ltd.Is an
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 0 0 65531 * 4323 1100 876 Time Warner Telecom 721 1106 794 DLA Systems Automation Center 18566 792 785 Covad Communications 4134 901 719 CHINANET-BACKBONE 9583 719 652 Sify Limited 27364 518 500 Armstrong Cable Services 6197 893 479 BellSouth Network Solutions, 5668 489 464 CenturyTel Internet Holdings, 22773 479 458 Cox Communications, Inc. 4755 545 433 Videsh Sanchar Nigam Ltd. Aut 7545 487 417 TPG Internet Pty Ltd 3602 506 412 Sprint Canada, Inc. 6467 442 407 E.Spire Communications, Inc. 17676 430 358 Softbank BB Corp. 6140 399 327 ImpSat 9929 357 313 China Netcom Corp. 4766 584 309 Korea Telecom (KIX) 20115 608 299 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 33771 UNALLOCATED 196.201.208.0/24 12491 IPPlanet 33771 UNALLOCATED 196.201.208.0/23 12491 IPPlanet 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 /8:19 /9:3 /10:8 /11:15 /12:68 /13:152 /14:309 /15:589 /16:8383 /17:2531 /18:4362 /19:10157 /20:11015 /21:8904 /22:12210 /23:13243 /24:87715 /25:281 /26:260 /27:135 /28:75 /29:37 /30:66 /31:0 /32:29
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 776 792 Covad Communications 6197 732 893 BellSouth Network Solutions, 7018 666 1482 AT&T WorldNet Services 2386 595 840 AT&T Data Communications Serv 9583 536 719 Sify Limited 4323 513 1100 Time Warner Telecom 27364 506 518 Armstrong Cable Services 5668 407 489 CenturyTel Internet Holdings, 4766 401 584 Korea Telecom (KIX) 1239 383 916 Sprint 702 365 593 UUNET - Commercial IP service 6198 335 460 BellSouth Network Solutions, 6467 322 442 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 6517 295 318 Yipes Communications, Inc. 7011 295 345 Citizens Utilities 9929 282 357 China Netcom Corp. 11456 273 314 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 12:1519 13:1 15:9 16:2 17:3 18:4 20:4 24:874 32:69 33:4 38:109 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:42 59:25 60:20 61:753 62:585 63:1874 64:2678 65:2074 66:2781 67:548 68:515 69:997 70:92 71:5 72:148 80:559 81:537 82:395 83:240 84:158 85:174 86:2 128:140 129:158 130:89 131:280 132:35 133:1 134:150 135:40 136:162 137:65 138:172 139:56 140:190 141:106 142:139 143:130 144:167 145:32 146:280 147:104 148:295 149:169 150:97 151:63 152:107 153:87 154:5 155:143 156:77 157:93 158:167 159:174 160:75 161:53 162:203 163:84 164:206 165:174 166:154 167:231 168:415 169:139 170:306 171:8 172:2 192:5698 193:3169 194:2326 195:1554 196:653 198:3929 199:3278 200:4015 201:116 202:5521 203:6128 204:3811 205:2030 206:2453 207:2755 208:2082 209:3293 210:1707 211:840 212:1185 213:1283 214:272 215:32 216:3572 217:1140 218:189 219:108 220:362 221:194 222:91
End of report
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