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Routing Table Report 04:00 +10GMT Thu 22 Sep, 2005
Analysis Summary ----------------
BGP routing table entries examined: 170657 Prefixes after maximum aggregation: 97312 Unique aggregates announced to Internet: 82505 Total ASes present in the Internet Routing Table: 20558 Origin-only ASes present in the Internet Routing Table: 17888 Origin ASes announcing only one prefix: 8475 Transit ASes present in the Internet Routing Table: 2670 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: 20 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1425249344 Equivalent to 84 /8s, 243 /16s and 148 /24s Percentage of available address space announced: 38.5 Percentage of allocated address space announced: 57.9 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 81379
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35432 Total APNIC prefixes after maximum aggregation: 15606 Prefixes being announced from the APNIC address blocks: 33287 Unique aggregates announced from the APNIC address blocks: 16480 APNIC Region origin ASes present in the Internet Routing Table: 2366 APNIC Region origin ASes announcing only one prefix: 695 APNIC Region transit ASes present in the Internet Routing Table: 362 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 200202240 Equivalent to 11 /8s, 238 /16s and 216 /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: 90935 Total ARIN prefixes after maximum aggregation: 55219 Prefixes being announced from the ARIN address blocks: 71065 Unique aggregates announced from the ARIN address blocks: 26226 ARIN Region origin ASes present in the Internet Routing Table: 10237 ARIN Region origin ASes announcing only one prefix: 3782 ARIN Region transit ASes present in the Internet Routing Table: 954 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 268238336 Equivalent to 15 /8s, 252 /16s and 254 /24s Percentage of available ARIN address space announced: 66.6
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: 33033 Total RIPE prefixes after maximum aggregation: 22474 Prefixes being announced from the RIPE address blocks: 30064 Unique aggregates announced from the RIPE address blocks: 20279 RIPE Region origin ASes present in the Internet Routing Table: 7119 RIPE Region origin ASes announcing only one prefix: 3762 RIPE Region transit ASes present in the Internet Routing Table: 1179 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 218185856 Equivalent to 13 /8s, 1 /16s and 64 /24s Percentage of available RIPE address space announced: 65.0
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: 9527 Total LACNIC prefixes after maximum aggregation: 3203 Prefixes being announced from the LACNIC address blocks: 7880 Unique aggregates announced from the LACNIC address blocks: 4595 LACNIC Region origin ASes present in the Internet Routing Table: 634 LACNIC Region origin ASes announcing only one prefix: 196 LACNIC Region transit ASes present in the Internet Routing Table: 121 Average LACNIC Region AS path length visible: 5.2 Max LACNIC Region AS path length visible: 25 Number of LACNIC addresses announced to Internet: 22022400 Equivalent to 1 /8s, 80 /16s and 9 /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: 1706 Total AfriNIC prefixes after maximum aggregation: 810 Prefixes being announced from the AfriNIC address blocks: 1057 Unique aggregates announced from the AfriNIC address blocks: 799 AfriNIC Region origin ASes present in the Internet Routing Table: 138 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 18 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2711552 Equivalent to 0 /8s, 41 /16s and 96 /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 983 6076 202 CHINANET-BACKBONE 9583 794 77 12 Sify Limited 1221 748 1328 515 Telstra Pty Ltd 4755 719 259 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 60 BHARTI BT INTERNET LTD. 2907 336 1757 313 SINET Japan 9929 335 224 46 China Netcom Corp. 17557 330 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 18302 294 109 154 SK Global co., Ltd 9837 273 79 174 Powertel Ltd 17974 270 65 14 PT TELEKOMUNIKASI INDONESIA 703 253 263 206 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 1507 6359 986 AT&T WorldNet Services 4323 1172 705 228 Time Warner Telecom 174 1070 5850 1002 Cogent Communications 721 1053 21919 313 DLA Systems Automation Center 701 993 8120 838 UUNET Technologies, Inc. 6197 942 389 479 BellSouth Network Solutions, 2386 920 515 683 AT&T Data Communications Serv 1239 866 2852 609 Sprint 18566 852 227 21 Covad Communications 20115 647 507 329 Charter Communications 209 628 3457 494 Qwest 3356 575 10643 442 Level 3 Communications, LLC 3602 557 131 110 Sprint Canada, Inc. 27364 554 44 18 Armstrong Cable Services 3561 540 2409 420 Savvis 22773 534 1352 28 Cox Communications, Inc. 5668 495 115 23 CenturyTel Internet Holdings, 6198 472 417 228 BellSouth Network Solutions, 7132 460 4950 393 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 266 474 261 COLT Telecommunications 680 244 2040 240 DFN-IP service G-WiN 8708 237 262 217 Romania Data Systems S.A. 3246 229 476 222 Song Networks 9121 208 295 42 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 169 289 142 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 397 650 168 UniNet S.A. de C.V. 16814 298 18 7 NSS, S.A. 11172 248 83 60 Servicios Alestra S.A de C.V 6147 191 118 21 Telefonica Del Peru 11664 190 20 24 Keytech SA 19632 183 14 5 Metropolis Intercom S.A. 22047 171 128 7 VTR PUNTO NET S.A. 14117 153 10 5 Telefonica del Sur S.A. 7303 148 70 13 Telecom Argentina Stet-France 11556 132 64 2 Cable-Wireless Panama 6505 121 89 85 Global One Communicaoes Ltda 10481 121 48 8 Prima S.A. 19169 120 8 28 Telconet 13999 115 52 9 Mega Cable S.A. de C.V. 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 79 32 6 TEDATA 2905 74 210 66 The Internetworking Company o 20928 60 16 2 Noor Advanced Technologies AS 24835 58 34 7 RAYA Telecom - Egypt 6713 51 54 8 Itissalat Al-MAGHRIB 5713 38 149 33 Telkom SA Ltd 12455 34 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 852 831 Covad Communications 9583 794 782 Sify Limited 4134 983 781 CHINANET-BACKBONE 721 1053 740 DLA Systems Automation Center 4755 719 653 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 22773 534 506 Cox Communications, Inc. 5668 495 472 CenturyTel Internet Holdings, 6197 942 463 BellSouth Network Solutions, 3602 557 447 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 647 318 Charter Communications 17488 320 312 Hathway IP Over Cable Interne 15270 337 310 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 65500 PRIVATE 211.158.36.0/22 23851 Chongqing Broadband 65500 PRIVATE 211.158.40.0/22 23851 Chongqing Broadband 65500 PRIVATE 211.158.44.0/22 23851 Chongqing Broadband
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 /15:627 /16:8540 /17:2762 /18:4687 /19:10763 /20:11802 /21:9857 /22:13239 /23:14130 /24:92710 /25:323 /26:266 /27:170 /28:46 /29:14 /30:61 /31:3 /32:31
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 837 852 Covad Communications 6197 771 942 BellSouth Network Solutions, 7018 717 1507 AT&T WorldNet Services 2386 632 920 AT&T Data Communications Serv 9583 620 794 Sify Limited 4323 561 1172 Time Warner Telecom 27364 545 554 Armstrong Cable Services 4766 427 610 Korea Telecom (KIX) 5668 403 495 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 310 336 Yipes Communications, Inc. 15270 307 337 PaeTec.net -a division of Pae 701 286 993 UUNET Technologies, Inc. 18302 279 294 SK Global co., Ltd 20115 271 647 Charter Communications
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:5 8:24 12:1597 13:1 15:10 16:2 17:3 18:3 20:27 24:1079 30:3 32:65 38:155 40:54 44:4 47:2 52:4 55:1 56:3 57:23 58:156 59:69 60:122 61:744 62:762 63:1894 64:2869 65:2079 66:2913 67:615 68:613 69:1219 70:187 71:17 72:393 80:611 81:523 82:472 83:305 84:247 85:334 86:118 87:16 125:8 128:158 129:167 130:96 131:293 132:36 133:1 134:145 135:43 136:151 137:66 138:165 139:61 140:429 141:105 142:145 143:140 144:218 145:34 146:297 147:118 148:301 149:181 150:108 151:72 152:113 153:89 154:5 155:137 156:80 157:118 158:164 159:171 160:85 161:74 162:231 163:132 164:181 165:187 166:154 167:252 168:436 169:142 170:315 171:8 190:1 192:5688 193:3303 194:2419 195:1561 196:678 198:3875 199:3264 200:4179 201:328 202:6108 203:6411 204:3791 205:2021 206:2444 207:2777 208:2038 209:3388 210:1665 211:822 212:1211 213:1368 214:299 215:36 216:3694 217:1139 218:220 219:138 220:485 221:278 222:126
End of report
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