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Routing Table Report 04:00 +10GMT Mon 22 Aug, 2005
Analysis Summary ----------------
BGP routing table entries examined: 168490 Prefixes after maximum aggregation: 96883 Unique aggregates announced to Internet: 81574 Total ASes present in the Internet Routing Table: 20329 Origin-only ASes present in the Internet Routing Table: 17700 Origin ASes announcing only one prefix: 8379 Transit ASes present in the Internet Routing Table: 2629 Transit-only ASes present in the Internet Routing Table: 74 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: 16 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 13 Number of addresses announced to Internet: 1406488353 Equivalent to 83 /8s, 213 /16s and 79 /24s Percentage of available address space announced: 37.9 Percentage of allocated address space announced: 57.1 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 79846
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35077 Total APNIC prefixes after maximum aggregation: 15779 Prefixes being announced from the APNIC address blocks: 32974 Unique aggregates announced from the APNIC address blocks: 16380 APNIC Region origin ASes present in the Internet Routing Table: 2340 APNIC Region origin ASes announcing only one prefix: 695 APNIC Region transit ASes present in the Internet Routing Table: 353 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 192803456 Equivalent to 11 /8s, 125 /16s and 242 /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: 90076 Total ARIN prefixes after maximum aggregation: 54925 Prefixes being announced from the ARIN address blocks: 70394 Unique aggregates announced from the ARIN address blocks: 26115 ARIN Region origin ASes present in the Internet Routing Table: 10158 ARIN Region origin ASes announcing only one prefix: 3745 ARIN Region transit ASes present in the Internet Routing Table: 953 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 259673633 Equivalent to 15 /8s, 122 /16s and 78 /24s Percentage of available ARIN address space announced: 64.5
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: 32431 Total RIPE prefixes after maximum aggregation: 22212 Prefixes being announced from the RIPE address blocks: 29444 Unique aggregates announced from the RIPE address blocks: 19864 RIPE Region origin ASes present in the Internet Routing Table: 6998 RIPE Region origin ASes announcing only one prefix: 3702 RIPE Region transit ASes present in the Internet Routing Table: 1155 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 215124352 Equivalent to 12 /8s, 210 /16s and 137 /24s Percentage of available RIPE address space announced: 64.1
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: 9232 Total LACNIC prefixes after maximum aggregation: 3181 Prefixes being announced from the LACNIC address blocks: 7581 Unique aggregates announced from the LACNIC address blocks: 4402 LACNIC Region origin ASes present in the Internet Routing Table: 633 LACNIC Region origin ASes announcing only one prefix: 198 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: 21633792 Equivalent to 1 /8s, 74 /16s and 27 /24s Percentage of available LACNIC address space announced: 32.2
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: 1653 Total AfriNIC prefixes after maximum aggregation: 786 Prefixes being announced from the AfriNIC address blocks: 1011 Unique aggregates announced from the AfriNIC address blocks: 777 AfriNIC Region origin ASes present in the Internet Routing Table: 133 AfriNIC Region origin ASes announcing only one prefix: 39 AfriNIC Region transit ASes present in the Internet Routing Table: 15 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC addresses announced to Internet: 2629376 Equivalent to 0 /8s, 40 /16s and 31 /24s Percentage of available AfriNIC address space announced: 7.8
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 956 5524 194 CHINANET-BACKBONE 1221 757 1327 526 Telstra Pty Ltd 9583 756 77 14 Sify Limited 4755 700 259 65 Videsh Sanchar Nigam Ltd. Aut 4766 597 3414 281 Korea Telecom (KIX) 7545 519 108 73 TPG Internet Pty Ltd 17676 465 6739 99 Softbank BB Corp. 9443 382 82 77 Primus Telecommunications 9498 341 83 61 BHARTI BT INTERNET LTD. 9929 338 224 46 China Netcom Corp. 2907 337 1789 314 SINET Japan 17557 326 24 151 Pakistan Telecom 7474 315 257 218 SingTel Optus Pty Ltd 17488 308 18 8 Hathway IP Over Cable Interne 18302 299 109 156 SK Global co., Ltd 4802 296 53 157 Wantree Development 9837 277 80 179 Powertel Ltd 703 255 262 206 UUNET - Commercial IP service 17974 252 65 14 PT TELEKOMUNIKASI INDONESIA 9800 250 390 64 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1516 6376 986 AT&T WorldNet Services 4323 1151 704 221 Time Warner Telecom 174 1115 5820 1026 Cogent Communications 721 1092 21907 314 DLA Systems Automation Center 701 1004 8154 854 UUNET Technologies, Inc. 6197 942 498 450 BellSouth Network Solutions, 2386 900 528 664 AT&T Data Communications Serv 1239 867 2848 629 Sprint 18566 834 224 7 Covad Communications 20115 644 503 326 Charter Communications 209 626 3470 490 Qwest 3356 577 10662 446 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 549 125 106 Sprint Canada, Inc. 3561 528 2416 418 Savvis 22773 523 1352 27 Cox Communications, Inc. 5668 501 115 23 CenturyTel Internet Holdings, 6198 471 414 226 BellSouth Network Solutions, 7132 455 4948 389 SBC Internet Services 19262 446 1353 119 Verizon Global Networks
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 593 1999 484 UUNET - Commercial IP service 3301 299 1081 285 TeliaNet Sweden 3320 291 3232 240 Deutsche Telekom AG 8220 262 474 258 COLT Telecommunications 680 245 2041 241 DFN-IP service G-WiN 3246 230 469 223 Song Networks 8708 227 261 213 Romania Data Systems S.A. 1257 198 713 176 SWIPnet Swedish IP Network 5515 181 778 127 Sonera Solution Autonomous Sy 6746 181 49 157 Dynamic Network Technologies, 786 174 1794 174 The JANET IP Service 3269 169 1518 71 TELECOM ITALIA 5400 166 289 140 BT Ignite European Backbone 9121 165 278 42 TTnet Autonomous System 8866 164 20 7 Bulgarian Telecommunication C 3300 155 184 89 AUCS Communications Services 6830 154 665 32 UPC Distribution Services 25186 144 145 101 France Telecom Transpac's Tra 8551 138 120 20 Bezeq International 1273 136 174 97 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 393 632 166 UniNet S.A. de C.V. 16814 265 16 7 NSS, S.A. 11172 242 99 57 Servicios Alestra S.A de C.V 6147 193 110 21 Telefonica Del Peru 11664 190 20 23 Keytech SA 14117 152 9 5 Telefonica del Sur S.A. 22047 144 128 7 VTR PUNTO NET S.A. 7303 143 68 15 Telecom Argentina Stet-France 19632 143 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 113 147 74 AVANTEL, S.A. 18822 110 7 14 TELEFONICA MANQUEHUE 13999 109 52 9 Mega Cable S.A. de C.V. 10481 104 48 8 Prima S.A. 21826 103 13 15 INTERCABLE 5639 101 12 9 Telecommunications Services o 11311 97 8 14 Sinectis S.A. 23216 95 24 20 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 264 685 222 The Internet Solution 5536 122 8 15 Internet Egypt Network 8452 103 32 7 TEDATA 2018 96 295 87 Tertiary Education Network 2905 76 266 68 The Internetworking Company o 20928 57 16 2 Noor Advanced Technologies AS 24835 57 34 6 RAYA Telecom - Egypt 6713 51 54 8 Itissalat Al-MAGHRIB 15475 48 84 4 Nile Online 9129 42 3 3 UUNET Kenya 5713 41 149 32 Telkom SA Ltd 15706 31 8 3 Sudatel Internet Exchange Aut 12455 30 5 6 Jambonet Autonomous system 8524 24 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 15804 17 2 1 AS of The Way Out Internet So 15808 17 2 2 Communication Solutions Ltd i
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1151 930 Time Warner Telecom 18566 834 827 Covad Communications 721 1092 778 DLA Systems Automation Center 4134 956 762 CHINANET-BACKBONE 9583 756 742 Sify Limited 4755 700 635 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 22773 523 496 Cox Communications, Inc. 6197 942 492 BellSouth Network Solutions, 5668 501 478 CenturyTel Internet Holdings, 7545 519 446 TPG Internet Pty Ltd 3602 549 443 Sprint Canada, Inc. 17676 465 366 Softbank BB Corp. 6467 437 364 E.Spire Communications, Inc. 19262 446 327 Verizon Global Networks 20115 644 318 Charter Communications 4766 597 316 Korea Telecom (KIX) 11492 318 312 Cable One 9443 382 305 Primus Telecommunications 17488 308 300 Hathway IP Over Cable Interne
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel 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 64943 PRIVATE 202.41.14.0/24 24110 Security Mail Pty Lt 64942 PRIVATE 202.41.15.0/24 24110 Security Mail Pty Lt 24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp. 65005 PRIVATE 203.200.197.0/24 4755 Videsh Sanchar Nigam 63946 RESERVED 204.222.174.0/23 268 Uniformed Services U 65103 PRIVATE 216.53.126.0/23 7270 Net2Phone Corp.
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 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 192.145.251.0/24 17860 WEBZEN 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 /12:76 /13:169 /14:319 /15:604 /16:8490 /17:2688 /18:4574 /19:10640 /20:11631 /21:9662 /22:13090 /23:13990 /24:91432 /25:360 /26:334 /27:193 /28:51 /29:28 /30:81 /31:1 /32:33
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 818 834 Covad Communications 6197 769 942 BellSouth Network Solutions, 7018 722 1516 AT&T WorldNet Services 2386 607 900 AT&T Data Communications Serv 9583 573 756 Sify Limited 4323 550 1151 Time Warner Telecom 27364 545 554 Armstrong Cable Services 4766 415 597 Korea Telecom (KIX) 5668 405 501 CenturyTel Internet Holdings, 702 366 593 UUNET - Commercial IP service 19916 363 370 OLM LLC 1239 361 867 Sprint 6198 344 471 BellSouth Network Solutions, 7011 344 399 Citizens Utilities 11492 310 318 Cable One 6517 301 323 Yipes Communications, Inc. 15270 300 324 PaeTec.net -a division of Pae 6467 291 437 E.Spire Communications, Inc. 18302 284 299 SK Global co., Ltd 701 279 1004 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:7 8:23 11:1 12:1573 13:1 15:9 16:2 17:3 18:3 20:5 24:960 30:3 32:61 33:1 38:142 40:56 44:4 47:2 52:4 55:2 56:3 57:23 58:154 59:61 60:110 61:723 62:678 63:1886 64:2836 65:2076 66:2901 67:584 68:580 69:1142 70:170 71:12 72:339 80:599 81:545 82:457 83:296 84:228 85:307 86:82 87:27 128:154 129:167 130:90 131:300 132:34 133:1 134:144 135:42 136:150 137:63 138:137 139:61 140:398 141:105 142:145 143:136 144:191 145:33 146:292 147:110 148:296 149:180 150:107 151:64 152:108 153:89 154:5 155:143 156:76 157:99 158:167 159:166 160:82 161:72 162:219 163:111 164:188 165:195 166:153 167:242 168:437 169:145 170:317 171:8 190:1 192:5745 193:3248 194:2403 195:1578 196:650 198:3880 199:3280 200:4109 201:239 202:6051 203:6406 204:3806 205:2056 206:2457 207:2832 208:2037 209:3334 210:1655 211:779 212:1231 213:1312 214:293 215:35 216:3636 217:1108 218:213 219:163 220:434 221:242 222:116
End of report
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