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Routing Table Report 04:00 +10GMT Sun 17 Apr, 2005
Analysis Summary ----------------
BGP routing table entries examined: 159938 Prefixes after maximum aggregation: 93223 Unique aggregates announced to Internet: 76993 Total ASes present in the Internet Routing Table: 19418 Origin-only ASes present in the Internet Routing Table: 16899 Origin ASes announcing only one prefix: 7908 Transit ASes present in the Internet Routing Table: 2519 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: 23 Prefixes from unregistered ASNs in the Routing Table: 13 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 14 Number of addresses announced to Internet: 1383128384 Equivalent to 82 /8s, 112 /16s and 221 /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: 74693
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 32636 Total APNIC prefixes after maximum aggregation: 15404 Prefixes being announced from the APNIC address blocks: 30575 Unique aggregates announced from the APNIC address blocks: 15399 APNIC Region origin ASes present in the Internet Routing Table: 2242 APNIC Region origin ASes announcing only one prefix: 658 APNIC Region transit ASes present in the Internet Routing Table: 341 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 181620864 Equivalent to 10 /8s, 211 /16s and 80 /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: 86872 Total ARIN prefixes after maximum aggregation: 53131 Prefixes being announced from the ARIN address blocks: 67734 Unique aggregates announced from the ARIN address blocks: 24909 ARIN Region origin ASes present in the Internet Routing Table: 9853 ARIN Region origin ASes announcing only one prefix: 3571 ARIN Region transit ASes present in the Internet Routing Table: 928 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 21 Number of ARIN addresses announced to Internet: 246054912 Equivalent to 14 /8s, 170 /16s and 128 /24s Percentage of available ARIN address space announced: 69.8
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: 30383 Total RIPE prefixes after maximum aggregation: 20992 Prefixes being announced from the RIPE address blocks: 27414 Unique aggregates announced from the RIPE address blocks: 18315 RIPE Region origin ASes present in the Internet Routing Table: 6547 RIPE Region origin ASes announcing only one prefix: 3459 RIPE Region transit ASes present in the Internet Routing Table: 1090 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 23 Number of RIPE addresses announced to Internet: 201378240 Equivalent to 12 /8s, 0 /16s and 201 /24s Percentage of available RIPE address space announced: 70.6
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: 8604 Total LACNIC prefixes after maximum aggregation: 2987 Prefixes being announced from the LACNIC address blocks: 6973 Unique aggregates announced from the LACNIC address blocks: 4029 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: 115 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 18084864 Equivalent to 1 /8s, 19 /16s and 244 /24s Percentage of available LACNIC address space announced: 53.9
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: 1426 Total AfriNIC prefixes after maximum aggregation: 709 Prefixes being announced from the AfriNIC address blocks: 930 Unique aggregates announced from the AfriNIC address blocks: 738 AfriNIC Region origin ASes present in the Internet Routing Table: 101 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: 2205952 Equivalent to 0 /8s, 33 /16s and 169 /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 4845 181 CHINANET-BACKBONE 1221 775 1193 552 Telstra Pty Ltd 9583 712 52 46 Sify Limited 4766 586 3415 275 Korea Telecom (KIX) 4755 546 243 113 Videsh Sanchar Nigam Ltd. Aut 7545 484 86 70 TPG Internet Pty Ltd 17676 430 6508 72 Softbank BB Corp. 9443 369 77 75 Primus Telecommunications 9929 358 175 45 China Netcom Corp. 2907 345 1838 319 SINET Japan 17557 335 24 152 Pakistan Telecom 10036 313 28 284 C&M Communication Co. Ltd. 4808 310 251 169 CNCGROUP IP network: China169 7474 296 268 213 SingTel Optus Pty Ltd 4802 279 47 164 Wantree Development 9498 268 82 52 BHARTI BT INTERNET LTD. 2764 260 238 198 AAPT Limited 703 256 279 212 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 1477 6530 960 AT&T WorldNet Services 174 1142 5589 974 Cogent Communications 721 1117 21731 313 DLA Systems Automation Center 4323 1093 663 221 Time Warner Telecom 701 1003 8281 855 UUNET Technologies, Inc. 1239 911 2876 658 Sprint 6197 892 384 414 BellSouth Network Solutions, 2386 844 532 625 AT&T Data Communications Serv 18566 790 224 7 Covad Communications 209 641 3475 496 Qwest 20115 604 499 313 Charter Communications 3356 586 10838 439 Level 3 Communications, LLC 3561 546 2369 414 Savvis 852 533 1095 394 Telus Advanced Communications 27364 517 43 18 Armstrong Cable Services 3602 507 121 91 Sprint Canada, Inc. 5668 489 115 25 CenturyTel Internet Holdings, 22773 477 1188 21 Cox Communications, Inc. 6198 458 380 215 BellSouth Network Solutions, 7132 441 8654 378 SBC Internet Services
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 594 2003 486 UUNET - Commercial IP service 3320 303 2993 237 Deutsche Telekom AG 3301 295 1116 285 TeliaNet Sweden 8220 278 472 271 COLT Telecommunications 680 253 2041 238 DFN-IP service G-WiN 3246 232 491 227 Song Networks 8708 227 251 208 Romania Data Systems S.A. 1257 198 695 174 SWIPnet Swedish IP Network 5515 178 778 128 Sonera Solution Autonomous Sy 786 173 1778 173 The JANET IP Service 3269 167 1472 73 TELECOM ITALIA 8866 164 21 12 Bulgarian Telecommunication C 6746 161 47 141 Dynamic Network Technologies, 719 159 340 101 LANLINK autonomous system 3300 150 184 84 AUCS Communications Services 5400 146 286 129 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 352 533 146 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 222 99 54 Servicios Alestra S.A de C.V 6147 197 102 20 Telefonica Del Peru 19632 189 14 12 Metropolis Intercom S.A. 7303 157 68 21 Telecom Argentina Stet-France 11664 153 19 23 Keytech SA 23216 136 24 24 RAMtelecom Telecomunicaciones 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 105 146 74 AVANTEL, S.A. 18822 104 7 16 TELEFONICA MANQUEHUE 13999 102 52 9 Mega Cable S.A. de C.V. 11556 99 49 5 Cable-Wireless Panama 19169 96 6 17 Telconet 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 118 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 59 34 6 RAYA Telecom - Egypt 9129 43 3 3 UUNET Kenya 12455 43 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 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 1093 872 Time Warner Telecom 721 1117 804 DLA Systems Automation Center 18566 790 783 Covad Communications 4134 901 720 CHINANET-BACKBONE 9583 712 666 Sify Limited 27364 517 499 Armstrong Cable Services 6197 892 478 BellSouth Network Solutions, 5668 489 464 CenturyTel Internet Holdings, 22773 477 456 Cox Communications, Inc. 4755 546 433 Videsh Sanchar Nigam Ltd. Aut 3602 507 416 Sprint Canada, Inc. 7545 484 414 TPG Internet Pty Ltd 6467 437 402 E.Spire Communications, Inc. 17676 430 358 Softbank BB Corp. 6140 398 326 ImpSat 9929 358 313 China Netcom Corp. 4766 586 311 Korea Telecom (KIX) 9443 369 294 Primus Telecommunications 20115 604 291 Charter Communications
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 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 /12:67 /13:152 /14:308 /15:581 /16:8367 /17:2516 /18:4314 /19:10197 /20:10937 /21:8801 /22:12153 /23:13220 /24:87401 /25:287 /26:259 /27:138 /28:67 /29:38 /30:63 /31:0 /32:28
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 774 790 Covad Communications 6197 733 892 BellSouth Network Solutions, 7018 662 1477 AT&T WorldNet Services 2386 599 844 AT&T Data Communications Serv 9583 531 712 Sify Limited 4323 511 1093 Time Warner Telecom 27364 505 517 Armstrong Cable Services 5668 407 489 CenturyTel Internet Holdings, 4766 402 586 Korea Telecom (KIX) 1239 380 911 Sprint 702 364 594 UUNET - Commercial IP service 6198 336 458 BellSouth Network Solutions, 6467 319 437 E.Spire Communications, Inc. 10036 313 313 C&M Communication Co. Ltd. 6517 294 317 Yipes Communications, Inc. 7011 294 343 Citizens Utilities 9929 282 358 China Netcom Corp. 11456 271 318 Carolina Online, Inc. 15270 254 274 PaeTec.net -a division of Pae 174 250 1142 Cogent Communications
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:4 8:11 12:1521 13:1 15:9 16:2 17:3 18:4 20:4 24:813 32:64 33:4 38:108 40:53 44:3 47:2 52:4 55:2 56:3 57:24 58:42 59:24 60:19 61:740 62:581 63:1886 64:2679 65:2081 66:2770 67:537 68:516 69:981 70:89 71:6 72:136 80:542 81:533 82:378 83:234 84:145 85:163 128:143 129:157 130:88 131:281 132:34 133:1 134:146 135:41 136:147 137:66 138:172 139:56 140:191 141:106 142:138 143:129 144:171 145:32 146:280 147:103 148:290 149:169 150:98 151:63 152:107 153:87 154:5 155:142 156:76 157:109 158:168 159:172 160:73 161:60 162:202 163:85 164:205 165:176 166:155 167:232 168:417 169:139 170:313 171:8 172:2 192:5695 193:3156 194:2333 195:1551 196:645 198:3903 199:3275 200:3995 201:115 202:5477 203:6138 204:3817 205:2028 206:2448 207:2750 208:2086 209:3273 210:1696 211:839 212:1188 213:1279 214:272 215:31 216:3572 217:1157 218:187 219:105 220:359 221:190 222:85
End of report
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