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Routing Table Report 04:00 +10GMT Wed 24 Aug, 2005
Analysis Summary ----------------
BGP routing table entries examined: 168529 Prefixes after maximum aggregation: 96938 Unique aggregates announced to Internet: 81767 Total ASes present in the Internet Routing Table: 20357 Origin-only ASes present in the Internet Routing Table: 17713 Origin ASes announcing only one prefix: 8387 Transit ASes present in the Internet Routing Table: 2644 Transit-only ASes present in the Internet Routing Table: 73 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: 15 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 12 Number of addresses announced to Internet: 1410077601 Equivalent to 84 /8s, 12 /16s and 19 /24s Percentage of available address space announced: 38.0 Percentage of allocated address space announced: 57.3 Percentage of available address space allocated: 66.4 Total number of prefixes smaller than registry allocations: 79953
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 35044 Total APNIC prefixes after maximum aggregation: 15803 Prefixes being announced from the APNIC address blocks: 32894 Unique aggregates announced from the APNIC address blocks: 16570 APNIC Region origin ASes present in the Internet Routing Table: 2342 APNIC Region origin ASes announcing only one prefix: 696 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: 195183232 Equivalent to 11 /8s, 162 /16s and 66 /24s Percentage of available APNIC address space announced: 72.4
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: 90120 Total ARIN prefixes after maximum aggregation: 54939 Prefixes being announced from the ARIN address blocks: 70418 Unique aggregates announced from the ARIN address blocks: 26100 ARIN Region origin ASes present in the Internet Routing Table: 10172 ARIN Region origin ASes announcing only one prefix: 3747 ARIN Region transit ASes present in the Internet Routing Table: 955 Average ARIN Region AS path length visible: 4.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 260643745 Equivalent to 15 /8s, 137 /16s and 27 /24s Percentage of available ARIN address space announced: 64.7
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: 32442 Total RIPE prefixes after maximum aggregation: 22230 Prefixes being announced from the RIPE address blocks: 29454 Unique aggregates announced from the RIPE address blocks: 19853 RIPE Region origin ASes present in the Internet Routing Table: 7010 RIPE Region origin ASes announcing only one prefix: 3707 RIPE Region transit ASes present in the Internet Routing Table: 1168 Average RIPE Region AS path length visible: 5.1 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 215279488 Equivalent to 12 /8s, 212 /16s and 231 /24s Percentage of available RIPE address space announced: 64.2
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: 9247 Total LACNIC prefixes after maximum aggregation: 3178 Prefixes being announced from the LACNIC address blocks: 7606 Unique aggregates announced from the LACNIC address blocks: 4411 LACNIC Region origin ASes present in the Internet Routing Table: 633 LACNIC Region origin ASes announcing only one prefix: 197 LACNIC Region transit ASes present in the Internet Routing Table: 116 Average LACNIC Region AS path length visible: 5.1 Max LACNIC Region AS path length visible: 23 Number of LACNIC addresses announced to Internet: 21702912 Equivalent to 1 /8s, 75 /16s and 41 /24s Percentage of available LACNIC address space announced: 32.3
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: 1656 Total AfriNIC prefixes after maximum aggregation: 788 Prefixes being announced from the AfriNIC address blocks: 1015 Unique aggregates announced from the AfriNIC address blocks: 784 AfriNIC Region origin ASes present in the Internet Routing Table: 133 AfriNIC Region origin ASes announcing only one prefix: 40 AfriNIC Region transit ASes present in the Internet Routing Table: 17 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 12 Number of AfriNIC addresses announced to Internet: 2631424 Equivalent to 0 /8s, 40 /16s and 39 /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 957 5524 194 CHINANET-BACKBONE 1221 758 1327 527 Telstra Pty Ltd 9583 756 77 14 Sify Limited 4755 702 259 65 Videsh Sanchar Nigam Ltd. Aut 4766 599 3926 283 Korea Telecom (KIX) 7545 519 108 74 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 330 24 153 Pakistan Telecom 7474 315 257 218 SingTel Optus Pty Ltd 18302 301 109 158 SK Global co., Ltd 17488 300 18 18 Hathway IP Over Cable Interne 4802 296 53 157 Wantree Development 9837 277 80 179 Powertel Ltd 703 256 262 207 UUNET - Commercial IP service 9800 250 390 64 CHINA UNICOM 17974 244 46 12 PT TELEKOMUNIKASI INDONESIA
ARIN Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 7018 1517 6377 987 AT&T WorldNet Services 4323 1151 704 221 Time Warner Telecom 174 1122 5825 1027 Cogent Communications 721 1092 21906 314 DLA Systems Automation Center 701 1003 8154 854 UUNET Technologies, Inc. 6197 945 502 450 BellSouth Network Solutions, 2386 900 528 664 AT&T Data Communications Serv 1239 866 2848 628 Sprint 18566 834 224 7 Covad Communications 20115 641 502 324 Charter Communications 209 628 3470 490 Qwest 3356 576 10662 445 Level 3 Communications, LLC 27364 554 44 18 Armstrong Cable Services 3602 550 125 106 Sprint Canada, Inc. 3561 534 2416 422 Savvis 22773 523 1352 27 Cox Communications, Inc. 5668 501 115 23 CenturyTel Internet Holdings, 6198 473 417 227 BellSouth Network Solutions, 7132 455 4948 389 SBC Internet Services 19262 449 1362 120 Verizon Global Networks
RIPE Region per AS prefix count summary ---------------------------------------
ASN No of nets /20 equiv MaxAgg Description 702 592 1983 483 UUNET - Commercial IP service 3301 299 1081 285 TeliaNet Sweden 3320 290 3232 239 Deutsche Telekom AG 8220 263 474 259 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 171 1528 68 TELECOM ITALIA 9121 167 279 43 TTnet Autonomous System 5400 165 289 139 BT Ignite European Backbone 8866 165 20 7 Bulgarian Telecommunication C 6830 157 669 33 UPC Distribution Services 3300 156 184 90 AUCS Communications Services 25186 144 145 101 France Telecom Transpac's Tra 8551 139 120 20 Bezeq International 1273 137 174 96 Cable & Wireless Deutschland
LACNIC Region per AS prefix count summary -----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 8151 396 648 167 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 194 110 21 Telefonica Del Peru 11664 190 20 23 Keytech SA 14117 152 9 5 Telefonica del Sur S.A. 22047 145 128 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 10481 120 48 8 Prima S.A. 19169 120 8 26 Telconet 18822 110 7 14 TELEFONICA MANQUEHUE 13999 109 52 9 Mega Cable S.A. de C.V. 6503 103 147 76 AVANTEL, 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 102 32 7 TEDATA 2018 96 295 87 Tertiary Education Network 2905 76 266 68 The Internetworking Company o 15475 66 84 4 Nile Online 24835 58 34 7 RAYA Telecom - Egypt 20928 57 16 2 Noor Advanced Technologies AS 6713 51 54 8 Itissalat Al-MAGHRIB 5713 41 149 32 Telkom SA Ltd 9129 31 3 3 UUNET Kenya 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 957 763 CHINANET-BACKBONE 9583 756 742 Sify Limited 4755 702 637 Videsh Sanchar Nigam Ltd. Aut 27364 554 536 Armstrong Cable Services 22773 523 496 Cox Communications, Inc. 6197 945 495 BellSouth Network Solutions, 5668 501 478 CenturyTel Internet Holdings, 7545 519 445 TPG Internet Pty Ltd 3602 550 444 Sprint Canada, Inc. 17676 465 366 Softbank BB Corp. 6467 437 364 E.Spire Communications, Inc. 19262 449 329 Verizon Global Networks 20115 641 317 Charter Communications 4766 599 316 Korea Telecom (KIX) 11492 319 312 Cable One 9443 382 305 Primus Telecommunications 6140 415 293 ImpSat
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
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 /9:3 /10:8 /11:17 /12:76 /13:170 /14:320 /15:604 /16:8494 /17:2694 /18:4587 /19:10648 /20:11616 /21:9696 /22:13105 /23:13995 /24:91422 /25:340 /26:336 /27:192 /28:50 /29:28 /30:77 /31:1 /32:33
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 18566 818 834 Covad Communications 6197 768 945 BellSouth Network Solutions, 7018 722 1517 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 416 599 Korea Telecom (KIX) 5668 405 501 CenturyTel Internet Holdings, 702 366 592 UUNET - Commercial IP service 19916 363 370 OLM LLC 1239 360 866 Sprint 6198 345 473 BellSouth Network Solutions, 7011 343 398 Citizens Utilities 11492 311 319 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 286 301 SK Global co., Ltd 701 279 1003 UUNET Technologies, Inc.
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:7 8:23 11:1 12:1574 13:1 15:9 16:2 17:3 18:3 20:5 24:960 30:3 32:61 33:1 38:143 40:56 44:4 47:2 52:4 55:2 56:3 57:23 58:154 59:62 60:111 61:721 62:710 63:1891 64:2833 65:2075 66:2896 67:593 68:581 69:1148 70:172 71:12 72:339 80:593 81:540 82:458 83:298 84:226 85:277 86:80 87:27 128:152 129:167 130:90 131:299 132:34 133:1 134:143 135:42 136:149 137:63 138:163 139:62 140:397 141:105 142:145 143:137 144:192 145:33 146:292 147:111 148:299 149:180 150:107 151:64 152:108 153:89 154:5 155:143 156:78 157:99 158:167 159:167 160:82 161:72 162:220 163:111 164:188 165:195 166:154 167:247 168:437 169:142 170:317 171:8 190:1 192:5745 193:3258 194:2400 195:1579 196:654 198:3876 199:3282 200:4119 201:234 202:6031 203:6367 204:3788 205:2032 206:2460 207:2833 208:2043 209:3338 210:1659 211:784 212:1223 213:1316 214:293 215:35 216:3639 217:1113 218:217 219:165 220:434 221:243 222:118
End of report