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Routing Table Report 04:00 +10GMT Mon 08 Aug, 2005
Analysis Summary ----------------
BGP routing table entries examined: 167731 Prefixes after maximum aggregation: 96491 Unique aggregates announced to Internet: 81139 Total ASes present in the Internet Routing Table: 20224 Origin-only ASes present in the Internet Routing Table: 17638 Origin ASes announcing only one prefix: 8332 Transit ASes present in the Internet Routing Table: 2586 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: 1400184597 Equivalent to 83 /8s, 117 /16s and 31 /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: 79587
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 34909 Total APNIC prefixes after maximum aggregation: 15746 Prefixes being announced from the APNIC address blocks: 32751 Unique aggregates announced from the APNIC address blocks: 16283 APNIC Region origin ASes present in the Internet Routing Table: 2324 APNIC Region origin ASes announcing only one prefix: 687 APNIC Region transit ASes present in the Internet Routing Table: 344 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 192578432 Equivalent to 11 /8s, 122 /16s and 131 /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: 89654 Total ARIN prefixes after maximum aggregation: 54701 Prefixes being announced from the ARIN address blocks: 70035 Unique aggregates announced from the ARIN address blocks: 25894 ARIN Region origin ASes present in the Internet Routing Table: 10132 ARIN Region origin ASes announcing only one prefix: 3745 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: 255308053 Equivalent to 15 /8s, 55 /16s and 177 /24s Percentage of available ARIN address space announced: 63.4
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: 32368 Total RIPE prefixes after maximum aggregation: 22099 Prefixes being announced from the RIPE address blocks: 29386 Unique aggregates announced from the RIPE address blocks: 19766 RIPE Region origin ASes present in the Internet Routing Table: 6943 RIPE Region origin ASes announcing only one prefix: 3669 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: 213683584 Equivalent to 12 /8s, 188 /16s and 141 /24s Percentage of available RIPE address space announced: 63.7
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: 9125 Total LACNIC prefixes after maximum aggregation: 3159 Prefixes being announced from the LACNIC address blocks: 7499 Unique aggregates announced from the LACNIC address blocks: 4417 LACNIC Region origin ASes present in the Internet Routing Table: 627 LACNIC Region origin ASes announcing only one prefix: 194 LACNIC Region transit ASes present in the Internet Routing Table: 117 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 20778752 Equivalent to 1 /8s, 61 /16s and 15 /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: 1652 Total AfriNIC prefixes after maximum aggregation: 786 Prefixes being announced from the AfriNIC address blocks: 1007 Unique aggregates announced from the AfriNIC address blocks: 771 AfriNIC Region origin ASes present in the Internet Routing Table: 133 AfriNIC Region origin ASes announcing only one prefix: 37 AfriNIC Region transit ASes present in the Internet Routing Table: 16 Average AfriNIC Region AS path length visible: 4.6 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 767 1327 528 Telstra Pty Ltd 9583 747 77 14 Sify Limited 4755 680 259 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 344 224 46 China Netcom Corp. 9498 340 83 61 BHARTI BT INTERNET LTD. 2907 338 1789 315 SINET Japan 17557 325 23 156 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 294 109 158 SK Global co., Ltd 9837 278 79 181 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 1508 6403 974 AT&T WorldNet Services 4323 1139 704 220 Time Warner Telecom 174 1126 5825 1040 Cogent Communications 721 1078 21779 311 DLA Systems Automation Center 701 1016 8157 861 UUNET Technologies, Inc. 6197 940 497 447 BellSouth Network Solutions, 2386 891 528 654 AT&T Data Communications Serv 1239 871 2863 629 Sprint 18566 833 224 7 Covad Communications 20115 651 499 322 Charter Communications 209 621 3470 489 Qwest 3356 585 10697 448 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 549 125 105 Sprint Canada, Inc. 3561 533 2385 421 Savvis 22773 508 1188 23 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 169 1520 72 TELECOM ITALIA 719 168 340 100 LANLINK autonomous system 8866 163 20 7 Bulgarian Telecommunication C 3300 155 184 89 AUCS Communications Services 9121 155 274 42 TTnet Autonomous System 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 119 7 25 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 10481 101 40 7 Prima S.A. 21826 101 13 18 INTERCABLE 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 100 32 8 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 48 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 1078 767 DLA Systems Automation Center 4134 954 762 CHINANET-BACKBONE 9583 747 733 Sify Limited 4755 680 615 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 6197 940 493 BellSouth Network Solutions, 22773 508 485 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 436 320 Verizon Global Networks 4766 593 314 Korea Telecom (KIX) 11492 312 306 Cable One 9443 382 305 Primus Telecommunications 9929 344 298 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 /11:15 /12:75 /13:167 /14:317 /15:608 /16:8469 /17:2674 /18:4547 /19:10577 /20:11582 /21:9611 /22:13032 /23:13926 /24:91042 /25:376 /26:317 /27:178 /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 709 1508 AT&T WorldNet Services 2386 602 891 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 330 382 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 279 294 SK Global co., Ltd
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:7 8:23 9:1 12:1559 13:1 15:9 16:2 17:3 18:3 20:4 24:968 30:2 32:70 33:1 38:140 40:55 44:4 47:2 52:4 55:2 56:3 57:23 58:143 59:60 60:104 61:731 62:678 63:1881 64:2817 65:2097 66:2926 67:576 68:572 69:1139 70:153 71:13 72:281 80:594 81:556 82:443 83:294 84:225 85:298 86:74 87:24 128:156 129:168 130:88 131:294 132:38 133:1 134:145 135:42 136:137 137:70 138:166 139:61 140:400 141:105 142:144 143:141 144:191 145:34 146:286 147:110 148:292 149:177 150:107 151:65 152:108 153:89 154:5 155:141 156:77 157:102 158:167 159:168 160:82 161:71 162:218 163:95 164:188 165:192 166:154 167:243 168:436 169:145 170:328 171:8 172:1 190:1 192:5704 193:3235 194:2420 195:1579 196:651 198:3866 199:3289 200:4054 201:230 202:5985 203:6382 204:3788 205:2048 206:2420 207:2816 208:2028 209:3349 210:1637 211:740 212:1255 213:1337 214:272 215:32 216:3630 217:1116 218:212 219:184 220:421 221:237 222:123
End of report
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