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Routing Table Report 04:00 +10GMT Fri 23 Sep, 2005
Analysis Summary ----------------
BGP routing table entries examined: 170921 Prefixes after maximum aggregation: 97315 Unique aggregates announced to Internet: 82249 Total ASes present in the Internet Routing Table: 20557 Origin-only ASes present in the Internet Routing Table: 17873 Origin ASes announcing only one prefix: 8466 Transit ASes present in the Internet Routing Table: 2684 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: 28 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: 12 Number of addresses announced to Internet: 1424564608 Equivalent to 84 /8s, 233 /16s and 33 /24s Percentage of available address space announced: 38.4 Percentage of allocated address space announced: 57.9 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 81509
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35481 Total APNIC prefixes after maximum aggregation: 15575 Prefixes being announced from the APNIC address blocks: 33329 Unique aggregates announced from the APNIC address blocks: 16395 APNIC Region origin ASes present in the Internet Routing Table: 2365 APNIC Region origin ASes announcing only one prefix: 694 APNIC Region transit ASes present in the Internet Routing Table: 362 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 200253952 Equivalent to 11 /8s, 239 /16s and 162 /24s Percentage of available APNIC address space announced: 74.3
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: 91070 Total ARIN prefixes after maximum aggregation: 55237 Prefixes being announced from the ARIN address blocks: 71183 Unique aggregates announced from the ARIN address blocks: 26151 ARIN Region origin ASes present in the Internet Routing Table: 10229 ARIN Region origin ASes announcing only one prefix: 3778 ARIN Region transit ASes present in the Internet Routing Table: 959 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 17 Number of ARIN addresses announced to Internet: 269320960 Equivalent to 16 /8s, 13 /16s and 131 /24s Percentage of available ARIN address space announced: 66.9
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: 33066 Total RIPE prefixes after maximum aggregation: 22477 Prefixes being announced from the RIPE address blocks: 30098 Unique aggregates announced from the RIPE address blocks: 20179 RIPE Region origin ASes present in the Internet Routing Table: 7121 RIPE Region origin ASes announcing only one prefix: 3754 RIPE Region transit ASes present in the Internet Routing Table: 1187 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 28 Number of RIPE addresses announced to Internet: 218455744 Equivalent to 13 /8s, 5 /16s and 94 /24s Percentage of available RIPE address space announced: 65.1
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, 38912-39935 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: 9558 Total LACNIC prefixes after maximum aggregation: 3210 Prefixes being announced from the LACNIC address blocks: 7911 Unique aggregates announced from the LACNIC address blocks: 4601 LACNIC Region origin ASes present in the Internet Routing Table: 637 LACNIC Region origin ASes announcing only one prefix: 198 LACNIC Region transit ASes present in the Internet Routing Table: 123 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 22032896 Equivalent to 1 /8s, 80 /16s and 50 /24s Percentage of available LACNIC address space announced: 32.8
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: 1725 Total AfriNIC prefixes after maximum aggregation: 816 Prefixes being announced from the AfriNIC address blocks: 1065 Unique aggregates announced from the AfriNIC address blocks: 804 AfriNIC Region origin ASes present in the Internet Routing Table: 140 AfriNIC Region origin ASes announcing only one prefix: 42 AfriNIC Region transit ASes present in the Internet Routing Table: 19 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2734336 Equivalent to 0 /8s, 41 /16s and 185 /24s Percentage of available AfriNIC address space announced: 8.1
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 984 6080 203 CHINANET-BACKBONE 9583 798 77 12 Sify Limited 1221 750 1328 516 Telstra Pty Ltd 4755 720 259 66 Videsh Sanchar Nigam Ltd. Aut 4766 610 3927 289 Korea Telecom (KIX) 7545 514 108 72 TPG Internet Pty Ltd 17676 468 6787 101 Softbank BB Corp. 9443 386 84 77 Primus Telecommunications 9498 339 147 59 BHARTI BT INTERNET LTD. 2907 336 1757 313 SINET Japan 9929 335 224 46 China Netcom Corp. 17557 329 23 158 Pakistan Telecom 17488 320 19 8 Hathway IP Over Cable Interne 7474 313 257 216 SingTel Optus Pty Ltd 4802 305 63 153 Wantree Development 17974 301 66 13 PT TELEKOMUNIKASI INDONESIA 18302 293 109 155 SK Global co., Ltd 9837 271 79 172 Powertel Ltd 703 254 263 207 UUNET - Commercial IP service 9800 252 394 66 CHINA UNICOM
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1511 6360 986 AT&T WorldNet Services 4323 1172 705 228 Time Warner Telecom 721 1087 21922 312 DLA Systems Automation Center 174 1070 5850 1002 Cogent Communications 701 992 8104 839 UUNET Technologies, Inc. 6197 943 389 479 BellSouth Network Solutions, 2386 921 515 684 AT&T Data Communications Serv 1239 866 2851 609 Sprint 18566 854 240 7 Covad Communications 20115 649 507 331 Charter Communications 209 628 3457 494 Qwest 3356 575 10643 442 Level 3 Communications, LLC 3602 558 131 110 Sprint Canada, Inc. 27364 558 44 18 Armstrong Cable Services 3561 540 2409 420 Savvis 22773 534 1352 28 Cox Communications, Inc. 5668 490 115 23 CenturyTel Internet Holdings, 6198 472 417 228 BellSouth Network Solutions, 7132 462 4934 395 SBC Internet Services 19262 454 1375 122 Verizon Global Networks
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 608 1994 480 UUNET - Commercial IP service 3301 300 1081 286 TeliaNet Sweden 3320 291 3230 242 Deutsche Telekom AG 8220 268 475 263 COLT Telecommunications 680 244 2040 240 DFN-IP service G-WiN 8708 237 262 217 Romania Data Systems S.A. 3246 230 477 223 Song Networks 9121 223 336 25 TTnet Autonomous System 1257 195 712 173 SWIPnet Swedish IP Network 5515 185 778 127 Sonera Solution Autonomous Sy 6746 185 50 161 Dynamic Network Technologies, 3269 176 1606 69 TELECOM ITALIA 786 174 1795 174 The JANET IP Service 5400 168 288 141 BT Ignite European Backbone 8866 165 37 9 Bulgarian Telecommunication C 6830 157 669 33 UPC Distribution Services 3300 156 185 91 AUCS Communications Services 25186 144 145 101 France Telecom Transpac's Tra 24863 138 37 6 LINKdotNET AS number 3215 137 1181 79 France Telecom Transpac
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 398 650 169 UniNet S.A. de C.V. 16814 298 18 7 NSS, S.A. 11172 247 83 60 Servicios Alestra S.A de C.V 11664 198 20 24 Keytech SA 6147 191 118 21 Telefonica Del Peru 19632 183 14 5 Metropolis Intercom S.A. 22047 171 128 7 VTR PUNTO NET S.A. 14117 156 10 5 Telefonica del Sur S.A. 7303 148 70 13 Telecom Argentina Stet-France 11556 132 64 2 Cable-Wireless Panama 13999 124 52 9 Mega Cable S.A. de C.V. 6505 121 89 85 Global One Communicaoes Ltda 10481 121 48 8 Prima S.A. 19169 120 8 28 Telconet 6503 114 148 75 AVANTEL, S.A. 18822 111 7 15 TELEFONICA MANQUEHUE 21826 105 13 16 INTERCABLE 5639 103 12 9 Telecommunications Services o 11311 97 8 14 Sinectis S.A. 23216 96 24 19 RAMtelecom Telecomunicaciones
AfriNIC Region per AS prefix count summary ------------------------------------------
ASN No of nets /20 equiv MaxAgg Description 3741 266 708 223 The Internet Solution 5536 123 8 12 Internet Egypt Network 2018 96 295 87 Tertiary Education Network 15475 83 84 4 Nile Online 8452 80 32 6 TEDATA 2905 79 211 71 The Internetworking Company o 20928 61 16 2 Noor Advanced Technologies AS 24835 59 34 7 RAYA Telecom - Egypt 6713 51 54 8 Itissalat Al-MAGHRIB 5713 38 149 33 Telkom SA Ltd 12455 36 6 3 Jambonet Autonomous system 15706 31 8 3 Sudatel Internet Exchange Aut 33774 30 4 20 AS Number for Telecom Algeria 8524 24 1 4 AUCEGYPT Autonomous System 16637 23 10 20 Johnnic e-Ventures 23889 23 5 9 MAURITIUS TELECOM 10798 22 1 13 Standard Bank of South Africa 21280 22 4 5 Swift Global Kenya Ltd.Is an 21491 18 17 2 UTL On-line is RF broadband I 12258 17 3 11 Vodacom Internet Company
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 1172 944 Time Warner Telecom 18566 854 847 Covad Communications 9583 798 786 Sify Limited 4134 984 781 CHINANET-BACKBONE 721 1087 775 DLA Systems Automation Center 4755 720 654 Videsh Sanchar Nigam Ltd. Aut 27364 558 540 Armstrong Cable Services 22773 534 506 Cox Communications, Inc. 5668 490 467 CenturyTel Internet Holdings, 6197 943 464 BellSouth Network Solutions, 3602 558 448 Sprint Canada, Inc. 7545 514 442 TPG Internet Pty Ltd 17676 468 367 Softbank BB Corp. 6467 398 349 E.Spire Communications, Inc. 19262 454 332 Verizon Global Networks 11492 336 328 Cable One 4766 610 321 Korea Telecom (KIX) 20115 649 318 Charter Communications 17488 320 312 Hathway IP Over Cable Interne 15270 338 311 PaeTec.net -a division of Pae
List of Unregistered ASNs (Global) ----------------------------------
Bad AS Designation Network Transit AS Description 65506 PRIVATE 64.151.117.0/24 26228 ServePath, LLC 64826 PRIVATE 64.200.250.0/23 7911 Williams Communicati 65511 PRIVATE 65.77.145.0/24 16605 Aaro Broadband Wirel 65205 PRIVATE 152.163.5.0/24 2056 America Online 65111 PRIVATE 194.165.131.0/24 8697 Jordan Telecommunica 65430 PRIVATE 196.44.128.0/19 20459 Telecom Namibia 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 24413 UNALLOCATED 202.46.32.0/19 17623 China Netcom Corp. 18428 UNALLOCATED 203.91.0.0/24 9505 Taiwan Internet Gate 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 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 /9:5 /10:8 /11:17 /12:80 /13:176 /14:323 /15:631 /16:8510 /17:2779 /18:4693 /19:10791 /20:11807 /21:9880 /22:13264 /23:14155 /24:92830 /25:340 /26:273 /27:188 /28:45 /29:14 /30:61 /31:3 /32:31
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 838 854 Covad Communications 6197 772 943 BellSouth Network Solutions, 7018 723 1511 AT&T WorldNet Services 2386 630 921 AT&T Data Communications Serv 9583 624 798 Sify Limited 4323 560 1172 Time Warner Telecom 27364 549 558 Armstrong Cable Services 4766 427 610 Korea Telecom (KIX) 5668 398 490 CenturyTel Internet Holdings, 702 385 608 UUNET - Commercial IP service 7011 369 427 Citizens Utilities 1239 368 866 Sprint 19916 363 369 OLM LLC 6198 345 472 BellSouth Network Solutions, 11492 328 336 Cable One 6517 311 337 Yipes Communications, Inc. 15270 308 338 PaeTec.net -a division of Pae 701 287 992 UUNET Technologies, Inc. 18302 278 293 SK Global co., Ltd 20115 273 649 Charter Communications
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:5 8:24 12:1593 13:1 15:10 16:2 17:3 18:3 20:27 24:1084 30:3 32:65 38:157 40:54 44:4 47:2 52:4 55:1 56:3 57:23 58:157 59:69 60:122 61:760 62:764 63:1896 64:2867 65:2081 66:2914 67:616 68:611 69:1219 70:188 71:17 72:383 80:627 81:525 82:472 83:304 84:251 85:332 86:118 87:16 125:8 128:159 129:167 130:96 131:294 132:36 133:1 134:144 135:43 136:149 137:66 138:165 139:61 140:429 141:105 142:148 143:141 144:218 145:34 146:297 147:118 148:301 149:183 150:108 151:72 152:113 153:89 154:5 155:140 156:80 157:119 158:164 159:171 160:85 161:74 162:231 163:132 164:189 165:186 166:154 167:251 168:439 169:142 170:316 171:8 190:1 192:5706 193:3304 194:2417 195:1560 196:682 198:3878 199:3238 200:4195 201:332 202:6081 203:6419 204:3797 205:2063 206:2446 207:2819 208:2041 209:3393 210:1664 211:812 212:1185 213:1372 214:301 215:36 216:3686 217:1141 218:220 219:138 220:485 221:281 222:129
End of report
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