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Routing Table Report 04:00 +10GMT Tue 09 Aug, 2005
Analysis Summary ----------------
BGP routing table entries examined: 167859 Prefixes after maximum aggregation: 96530 Unique aggregates announced to Internet: 81181 Total ASes present in the Internet Routing Table: 20239 Origin-only ASes present in the Internet Routing Table: 17655 Origin ASes announcing only one prefix: 8344 Transit ASes present in the Internet Routing Table: 2584 Transit-only ASes present in the Internet Routing Table: 72 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 26 Prefixes from unregistered ASNs in the Routing Table: 17 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1401448213 Equivalent to 83 /8s, 136 /16s and 103 /24s Percentage of available address space announced: 37.8 Percentage of allocated address space announced: 56.9 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 79645
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 34906 Total APNIC prefixes after maximum aggregation: 15745 Prefixes being announced from the APNIC address blocks: 32754 Unique aggregates announced from the APNIC address blocks: 16291 APNIC Region origin ASes present in the Internet Routing Table: 2323 APNIC Region origin ASes announcing only one prefix: 688 APNIC Region transit ASes present in the Internet Routing Table: 343 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 192633472 Equivalent to 11 /8s, 123 /16s and 90 /24s Percentage of available APNIC address space announced: 71.5
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911 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: 89759 Total ARIN prefixes after maximum aggregation: 54720 Prefixes being announced from the ARIN address blocks: 70099 Unique aggregates announced from the ARIN address blocks: 25929 ARIN Region origin ASes present in the Internet Routing Table: 10137 ARIN Region origin ASes announcing only one prefix: 3747 ARIN Region transit ASes present in the Internet Routing Table: 944 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 255957781 Equivalent to 15 /8s, 65 /16s and 155 /24s Percentage of available ARIN address space announced: 63.6
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, 74/7, 76/8, 198/7, 204/6, 208/7 and 216/8
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 32398 Total RIPE prefixes after maximum aggregation: 22122 Prefixes being announced from the RIPE address blocks: 29415 Unique aggregates announced from the RIPE address blocks: 19783 RIPE Region origin ASes present in the Internet Routing Table: 6954 RIPE Region origin ASes announcing only one prefix: 3678 RIPE Region transit ASes present in the Internet Routing Table: 1132 Average RIPE Region AS path length visible: 5.2 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 214233728 Equivalent to 12 /8s, 196 /16s and 242 /24s Percentage of available RIPE address space announced: 63.8
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, 88/6, 188/8, 193/8, 194/7, 212/7 and 217/8
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 9124 Total LACNIC prefixes after maximum aggregation: 3159 Prefixes being announced from the LACNIC address blocks: 7501 Unique aggregates announced from the LACNIC address blocks: 4398 LACNIC Region origin ASes present in the Internet Routing Table: 628 LACNIC Region origin ASes announcing only one prefix: 195 LACNIC Region transit ASes present in the Internet Routing Table: 116 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 20786944 Equivalent to 1 /8s, 61 /16s and 47 /24s Percentage of available LACNIC address space announced: 31.0
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers LACNIC Address Blocks 189/8, 190/8, 200/7
AfriNIC Region Analysis Summary -------------------------------
Prefixes being announced by AfriNIC Region ASes: 1649 Total AfriNIC prefixes after maximum aggregation: 784 Prefixes being announced from the AfriNIC address blocks: 1008 Unique aggregates announced from the AfriNIC address blocks: 771 AfriNIC Region origin ASes present in the Internet Routing Table: 132 AfriNIC Region origin ASes announcing only one prefix: 36 AfriNIC Region transit ASes present in the Internet Routing Table: 16 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2358016 Equivalent to 0 /8s, 35 /16s and 251 /24s Percentage of available AfriNIC address space announced: 7.0
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 954 5521 192 CHINANET-BACKBONE 1221 768 1327 529 Telstra Pty Ltd 9583 747 77 14 Sify Limited 4755 678 259 65 Videsh Sanchar Nigam Ltd. Aut 4766 593 3413 279 Korea Telecom (KIX) 7545 515 108 72 TPG Internet Pty Ltd 17676 463 6707 98 Softbank BB Corp. 9443 382 82 77 Primus Telecommunications 9929 346 224 48 China Netcom Corp. 9498 340 83 61 BHARTI BT INTERNET LTD. 2907 338 1789 315 SINET Japan 17557 326 23 157 Pakistan Telecom 7474 315 273 217 SingTel Optus Pty Ltd 17488 305 18 8 Hathway IP Over Cable Interne 4802 299 53 165 Wantree Development 18302 295 109 158 SK Global co., Ltd 9837 277 79 180 Powertel Ltd 17974 271 65 14 PT TELEKOMUNIKASI INDONESIA 703 253 262 206 UUNET - Commercial IP service 9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1503 6402 974 AT&T WorldNet Services 4323 1139 704 220 Time Warner Telecom 174 1126 5825 1040 Cogent Communications 721 1083 21779 312 DLA Systems Automation Center 701 1014 8157 859 UUNET Technologies, Inc. 6197 940 497 447 BellSouth Network Solutions, 2386 892 528 655 AT&T Data Communications Serv 1239 871 2863 629 Sprint 18566 833 224 7 Covad Communications 20115 651 499 322 Charter Communications 209 622 3470 490 Qwest 3356 587 10697 449 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 549 125 105 Sprint Canada, Inc. 3561 534 2385 422 Savvis 22773 507 1316 22 Cox Communications, Inc. 5668 501 115 23 CenturyTel Internet Holdings, 6198 467 396 224 BellSouth Network Solutions, 7132 450 4689 385 SBC Internet Services 852 445 1093 384 Telus Advanced Communications
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 593 1999 483 UUNET - Commercial IP service 3301 299 1081 285 TeliaNet Sweden 3320 292 3232 241 Deutsche Telekom AG 8220 262 472 258 COLT Telecommunications 680 245 2041 241 DFN-IP service G-WiN 3246 230 469 223 Song Networks 8708 228 262 214 Romania Data Systems S.A. 1257 196 712 174 SWIPnet Swedish IP Network 5515 181 778 127 Sonera Solution Autonomous Sy 6746 179 49 155 Dynamic Network Technologies, 5400 177 289 149 BT Ignite European Backbone 786 174 1794 174 The JANET IP Service 3269 170 1520 72 TELECOM ITALIA 719 168 340 100 LANLINK autonomous system 8866 163 20 7 Bulgarian Telecommunication C 9121 156 274 43 TTnet Autonomous System 3300 155 184 89 AUCS Communications Services 6830 149 665 32 UPC Distribution Services 25186 143 145 100 France Telecom Transpac's Tra 8551 139 120 20 Bezeq International
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 380 599 160 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 241 99 59 Servicios Alestra S.A de C.V 6147 192 110 21 Telefonica Del Peru 11664 181 20 23 Keytech SA 14117 152 9 5 Telefonica del Sur S.A. 7303 144 69 18 Telecom Argentina Stet-France 22047 143 112 7 VTR PUNTO NET S.A. 19632 142 14 5 Metropolis Intercom S.A. 11556 131 64 3 Cable-Wireless Panama 6505 130 90 87 Global One Communicaoes Ltda 19169 120 8 26 Telconet 6503 115 148 76 AVANTEL, S.A. 13999 111 52 9 Mega Cable S.A. de C.V. 18822 110 7 14 TELEFONICA MANQUEHUE 21826 102 13 19 INTERCABLE 10481 101 40 7 Prima S.A. 22927 97 81 26 TELEFONICA DE ARGENTINA 5639 96 12 9 Telecommunications Services o 23216 96 24 21 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 263 621 221 The Internet Solution 5536 120 15 17 Internet Egypt Network 8452 99 32 7 TEDATA 2018 96 295 87 Tertiary Education Network 2905 76 266 68 The Internetworking Company o 24835 57 34 6 RAYA Telecom - Egypt 20928 56 16 2 Noor Advanced Technologies AS 6713 51 54 8 Itissalat Al-MAGHRIB 15475 47 84 4 Nile Online 9129 42 3 3 UUNET Kenya 5713 39 148 31 Telkom SA Ltd 12455 36 6 3 Jambonet Autonomous system 15706 31 8 3 Sudatel Internet Exchange Aut 8524 25 1 4 AUCEGYPT Autonomous System 16637 22 10 19 Johnnic e-Ventures 10798 21 1 12 Standard Bank of South Africa 23889 20 5 9 MAURITIUS TELECOM 12258 17 3 11 Vodacom Internet Company 15808 17 2 2 Communication Solutions Ltd i 21491 17 1 1 UTL On-line is RF broadband I
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1139 919 Time Warner Telecom 18566 833 826 Covad Communications 721 1083 771 DLA Systems Automation Center 4134 954 762 CHINANET-BACKBONE 9583 747 733 Sify Limited 4755 678 613 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 6197 940 493 BellSouth Network Solutions, 22773 507 485 Cox Communications, Inc. 5668 501 478 CenturyTel Internet Holdings, 3602 549 444 Sprint Canada, Inc. 7545 515 443 TPG Internet Pty Ltd 17676 463 365 Softbank BB Corp. 6467 435 362 E.Spire Communications, Inc. 20115 651 329 Charter Communications 19262 441 320 Verizon Global Networks 4766 593 314 Korea Telecom (KIX) 11492 312 306 Cable One 9443 382 305 Primus Telecommunications 9929 346 298 China Netcom Corp.
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 65050 PRIVATE 168.96.148.0/24 6140 ImpSat 65507 PRIVATE 200.0.64.0/24 27750 Cooperación Latino A 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 64512 PRIVATE 200.61.48.0/20 11664 Keytech SA 64512 PRIVATE 200.61.58.0/23 11664 Keytech SA 64512 PRIVATE 200.80.148.0/23 11664 Keytech SA 64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt 64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam
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 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 /8:17 /9:3 /10:8 /11:16 /12:74 /13:166 /14:318 /15:608 /16:8475 /17:2675 /18:4552 /19:10570 /20:11591 /21:9618 /22:13027 /23:13936 /24:91145 /25:373 /26:318 /27:179 /28:49 /29:28 /30:77 /31:0 /32:36
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 817 833 Covad Communications 6197 767 940 BellSouth Network Solutions, 7018 705 1503 AT&T WorldNet Services 2386 603 892 AT&T Data Communications Serv 9583 564 747 Sify Limited 27364 545 554 Armstrong Cable Services 4323 541 1139 Time Warner Telecom 4766 411 593 Korea Telecom (KIX) 5668 405 501 CenturyTel Internet Holdings, 702 365 593 UUNET - Commercial IP service 19916 363 370 OLM LLC 1239 362 871 Sprint 6198 342 467 BellSouth Network Solutions, 7011 328 380 Citizens Utilities 11492 304 312 Cable One 6517 297 319 Yipes Communications, Inc. 15270 296 320 PaeTec.net -a division of Pae 6467 289 435 E.Spire Communications, Inc. 20115 283 651 Charter Communications 18302 280 295 SK Global co., Ltd
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:7 8:23 12:1555 13:1 15:9 16:2 17:3 18:3 20:4 24:969 30:2 32:70 33:1 38:140 40:55 44:4 47:2 52:4 55:2 56:3 57:23 58:143 59:58 60:104 61:730 62:680 63:1884 64:2818 65:2097 66:2922 67:581 68:571 69:1139 70:153 71:13 72:286 80:597 81:559 82:449 83:294 84:226 85:295 86:73 87:24 128:155 129:168 130:88 131:294 132:38 133:1 134:145 135:42 136:137 137:70 138:166 139:61 140:403 141:105 142:144 143:141 144:194 145:34 146:291 147:110 148:291 149:177 150:107 151:64 152:108 153:89 154:5 155:141 156:77 157:100 158:167 159:168 160:82 161:71 162:219 163:96 164:189 165:192 166:154 167:243 168:436 169:145 170:321 171:8 172:1 190:1 192:5735 193:3239 194:2424 195:1573 196:651 198:3865 199:3289 200:4054 201:229 202:5978 203:6386 204:3792 205:2039 206:2455 207:2821 208:2048 209:3350 210:1638 211:738 212:1258 213:1338 214:271 215:32 216:3631 217:1110 218:212 219:181 220:433 221:235 222:123
End of report
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