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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Nov 19 20:10:00 CET 2010
This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats at lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs at cisco.com>. Routing Table Report 04:00 +10GMT Sat 20 Nov, 2010 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 337920 Prefixes after maximum aggregation: 153662 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 165745 Total ASes present in the Internet Routing Table: 35314 Prefixes per ASN: 9.57 Origin-only ASes present in the Internet Routing Table: 30423 Origin ASes announcing only one prefix: 14892 Transit ASes present in the Internet Routing Table: 4891 Transit-only ASes present in the Internet Routing Table: 118 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 374 Unregistered ASNs in the Routing Table: 168 Number of 32-bit ASNs allocated by the RIRs: 901 Prefixes from 32-bit ASNs in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 198 Number of addresses announced to Internet: 2301671776 Equivalent to 137 /8s, 48 /16s and 185 /24s Percentage of available address space announced: 62.1 Percentage of allocated address space announced: 65.4 Percentage of available address space allocated: 95.0 Percentage of address space in use by end-sites: 85.6 Total number of prefixes smaller than registry allocations: 139129 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 82883 Total APNIC prefixes after maximum aggregation: 28130 APNIC Deaggregation factor: 2.95 Prefixes being announced from the APNIC address blocks: 79793 Unique aggregates announced from the APNIC address blocks: 34792 APNIC Region origin ASes present in the Internet Routing Table: 4240 APNIC Prefixes per ASN: 18.82 APNIC Region origin ASes announcing only one prefix: 1191 APNIC Region transit ASes present in the Internet Routing Table: 683 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 564159264 Equivalent to 33 /8s, 160 /16s and 99 /24s Percentage of available APNIC address space announced: 76.4 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 36/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 110/8, 111/8, 112/8, 113/8, 114/8, 115/8, 116/8, 117/8, 118/8, 119/8, 120/8, 121/8, 122/8, 123/8, 124/8, 125/8, 126/8, 133/8, 175/8, 180/8, 182/8, 183/8, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 137691 Total ARIN prefixes after maximum aggregation: 71142 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 108854 Unique aggregates announced from the ARIN address blocks: 43801 ARIN Region origin ASes present in the Internet Routing Table: 14049 ARIN Prefixes per ASN: 7.75 ARIN Region origin ASes announcing only one prefix: 5384 ARIN Region transit ASes present in the Internet Routing Table: 1492 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 740892160 Equivalent to 44 /8s, 41 /16s and 30 /24s Percentage of available ARIN address space announced: 63.1 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, 39936-40959, 46080-47103 53248-55295, 393216-394239 ARIN Address Blocks 3/8, 4/8, 6/8, 7/8, 8/8, 9/8, 11/8, 12/8, 13/8, 15/8, 16/8, 17/8, 18/8, 19/8, 20/8, 21/8, 22/8, 24/8, 26/8, 28/8, 29/8, 30/8, 32/8, 33/8, 34/8, 35/8, 38/8, 40/8, 44/8, 45/8, 47/8, 48/8, 50/8, 52/8, 54/8, 55/8, 56/8, 63/8, 64/8, 65/8, 66/8, 67/8, 68/8, 69/8, 70/8, 71/8, 72/8, 73/8, 74/8, 75/8, 76/8, 96/8, 97/8, 98/8, 99/8, 107/8, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 214/8, 215/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 77905 Total RIPE prefixes after maximum aggregation: 45024 RIPE Deaggregation factor: 1.73 Prefixes being announced from the RIPE address blocks: 71405 Unique aggregates announced from the RIPE address blocks: 46773 RIPE Region origin ASes present in the Internet Routing Table: 15029 RIPE Prefixes per ASN: 4.75 RIPE Region origin ASes announcing only one prefix: 7745 RIPE Region transit ASes present in the Internet Routing Table: 2327 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 444617152 Equivalent to 26 /8s, 128 /16s and 81 /24s Percentage of available RIPE address space announced: 77.9 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 40960-45055, 47104-52223, 196608-197631 RIPE Address Blocks 2/8, 25/8, 31/8, 46/8, 51/8, 62/8, 77/8, 78/8, 79/8, 80/8, 81/8, 82/8, 83/8, 84/8, 85/8, 86/8, 87/8, 88/8, 89/8, 90/8, 91/8, 92/8, 93/8, 94/8, 95/8, 109/8, 176/8, 178/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31585 Total LACNIC prefixes after maximum aggregation: 7363 LACNIC Deaggregation factor: 4.29 Prefixes being announced from the LACNIC address blocks: 30236 Unique aggregates announced from the LACNIC address blocks: 15369 LACNIC Region origin ASes present in the Internet Routing Table: 1392 LACNIC Prefixes per ASN: 21.72 LACNIC Region origin ASes announcing only one prefix: 437 LACNIC Region transit ASes present in the Internet Routing Table: 245 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 77683968 Equivalent to 4 /8s, 161 /16s and 93 /24s Percentage of available LACNIC address space announced: 57.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7617 Total AfriNIC prefixes after maximum aggregation: 1883 AfriNIC Deaggregation factor: 4.05 Prefixes being announced from the AfriNIC address blocks: 5929 Unique aggregates announced from the AfriNIC address blocks: 1759 AfriNIC Region origin ASes present in the Internet Routing Table: 422 AfriNIC Prefixes per ASN: 14.05 AfriNIC Region origin ASes announcing only one prefix: 135 AfriNIC Region transit ASes present in the Internet Routing Table: 93 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21482496 Equivalent to 1 /8s, 71 /16s and 204 /24s Percentage of available AfriNIC address space announced: 42.7 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1874 9470 520 Korea Telecom (KIX) 7545 1437 299 78 TPG Internet Pty Ltd 4755 1389 383 157 TATA Communications formerly 17488 1365 157 115 Hathway IP Over Cable Interne 17974 1312 427 27 PT TELEKOMUNIKASI INDONESIA 24560 1057 309 168 Bharti Airtel Ltd., Telemedia 9583 1028 75 487 Sify Limited 4808 983 1722 267 CNCGROUP IP network: China169 18101 906 116 140 Reliance Infocom Ltd Internet 9829 835 695 30 BSNL National Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3748 3906 277 bellsouth.net, inc. 4323 2653 1104 402 Time Warner Telecom 19262 1838 4866 283 Verizon Global Networks 1785 1802 697 130 PaeTec Communications, Inc. 20115 1512 1532 640 Charter Communications 7018 1406 5659 900 AT&T WorldNet Services 6478 1402 283 104 AT&T Worldnet Services 2386 1310 556 929 AT&T Data Communications Serv 11492 1258 233 66 Cable One 22773 1252 2863 69 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 446 2026 388 TDC Tele Danmark 8866 435 133 25 Bulgarian Telecommunication C 8551 400 353 46 Bezeq International 34984 397 92 191 BILISIM TELEKOM 702 396 1865 310 UUNET - Commercial IP service 3301 382 1696 336 TeliaNet Sweden 3320 379 7316 332 Deutsche Telekom AG 12479 378 576 5 Uni2 Autonomous System 30890 374 79 208 Evolva Telecom 31148 354 18 85 FreeNet ISP Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6503 2011 277 361 AVANTEL, S.A. 8151 1345 2623 366 UniNet S.A. de C.V. 10620 1336 249 156 TVCABLE BOGOTA 28573 1164 928 84 NET Servicos de Comunicao S.A 7303 827 440 105 Telecom Argentina Stet-France 14420 572 48 77 CORPORACION NACIONAL DE TELEC 22047 563 310 15 VTR PUNTO NET S.A. 3816 487 212 95 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 451 32 29 Telefonica del Sur S.A. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1068 445 10 TEDATA 24863 741 147 39 LINKdotNET AS number 36992 652 278 160 Etisalat MISR 3741 265 923 227 The Internet Solution 6713 203 199 12 Itissalat Al-MAGHRIB 29571 200 19 11 Ci Telecom Autonomous system 2018 197 277 64 Tertiary Education Network 33776 195 12 14 Starcomms Nigeria Limited 24835 193 78 10 RAYA Telecom - Egypt 16637 152 440 89 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3748 3906 277 bellsouth.net, inc. 4323 2653 1104 402 Time Warner Telecom 6503 2011 277 361 AVANTEL, S.A. 4766 1874 9470 520 Korea Telecom (KIX) 19262 1838 4866 283 Verizon Global Networks 1785 1802 697 130 PaeTec Communications, Inc. 20115 1512 1532 640 Charter Communications 7545 1437 299 78 TPG Internet Pty Ltd 7018 1406 5659 900 AT&T WorldNet Services 6478 1402 283 104 AT&T Worldnet Services Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2653 2251 Time Warner Telecom 1785 1802 1672 PaeTec Communications, Inc. 6503 2011 1650 AVANTEL, S.A. 19262 1838 1555 Verizon Global Networks 7545 1437 1359 TPG Internet Pty Ltd 4766 1874 1354 Korea Telecom (KIX) 6478 1402 1298 AT&T Worldnet Services 17974 1312 1285 PT TELEKOMUNIKASI INDONESIA 17488 1365 1250 Hathway IP Over Cable Interne 4755 1389 1232 TATA Communications formerly Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 13329 UNALLOCATED 8.19.99.0/24 3356 Level 3 Communicatio 33257 UNALLOCATED 8.20.94.0/24 3356 Level 3 Communicatio 12235 UNALLOCATED 8.28.128.0/20 40498 New Mexico Lambda Ra 23347 UNALLOCATED 8.225.222.0/24 3356 Level 3 Communicatio 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 31.0.0.0/16 12654 RIPE NCC RIS Project 31.1.0.0/21 12654 RIPE NCC RIS Project 31.1.24.0/24 12654 RIPE NCC RIS Project 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 45.127.0.0/16 13767 NetworkTwo Communications Gro 46.22.0.0/20 30910 TAGNet Autonomous System 46.182.16.0/21 13270 DDKOM Autonomous System 46.187.0.0/17 42420 Internet Center Ltd. 62.61.220.0/24 24974 Tachyon Europe BV - Wireless Complete listing at http://thyme.rand.apnic.net/current/data-add-IANA Number of prefixes announced per prefix length (Global) ------------------------------------------------------- /1:0 /2:0 /3:0 /4:0 /5:0 /6:0 /7:0 /8:19 /9:10 /10:25 /11:69 /12:207 /13:423 /14:750 /15:1351 /16:11398 /17:5576 /18:9342 /19:18637 /20:23989 /21:24018 /22:31685 /23:30550 /24:177021 /25:995 /26:1087 /27:586 /28:161 /29:12 /30:2 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2313 3748 bellsouth.net, inc. 6503 1763 2011 AVANTEL, S.A. 4323 1432 2653 Time Warner Telecom 6478 1361 1402 AT&T Worldnet Services 10620 1228 1336 TVCABLE BOGOTA 11492 1215 1258 Cable One 1785 1080 1802 PaeTec Communications, Inc. 18566 1073 1092 Covad Communications 7011 1059 1160 Citizens Utilities 8452 961 1068 TEDATA Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:99 2:15 4:13 8:314 12:2023 13:6 14:58 15:18 16:3 17:8 20:9 24:1413 27:443 31:1 32:61 33:8 34:2 36:1 38:718 40:101 41:2631 42:1 44:3 46:262 47:10 49:16 50:7 52:12 55:6 56:2 57:29 58:848 59:504 60:500 61:1138 62:1006 63:1953 64:3724 65:2328 66:4077 67:1810 68:1126 69:2893 70:717 71:381 72:1917 73:2 74:2278 75:294 76:327 77:865 78:672 79:429 80:1059 81:778 82:499 83:439 84:679 85:1015 86:483 87:699 88:331 89:1571 90:121 91:3202 92:448 93:998 94:1092 95:710 96:404 97:228 98:674 99:33 101:3 107:1 108:69 109:774 110:417 111:655 112:308 113:317 114:477 115:626 116:1130 117:660 118:572 119:1010 120:168 121:713 122:1599 123:963 124:1235 125:1272 128:228 129:152 130:172 131:554 132:239 133:20 134:209 135:46 136:204 137:143 138:284 139:108 140:475 141:195 142:348 143:524 144:503 145:54 146:430 147:169 148:671 149:331 150:149 151:231 152:294 153:175 154:3 155:363 156:167 157:342 158:121 159:366 160:311 161:199 162:276 163:166 164:435 165:331 166:466 167:429 168:702 169:150 170:719 171:63 172:2 173:1109 174:439 175:250 176:1 178:657 180:702 182:256 183:244 184:182 186:813 187:881 188:887 189:1590 190:4225 192:5775 193:4795 194:3466 195:2872 196:1185 197:1 198:3538 199:3644 200:5520 201:1640 202:8224 203:8325 204:4036 205:2346 206:2559 207:3023 208:3875 209:3457 210:2539 211:1296 212:1795 213:1712 214:693 215:63 216:4745 217:1604 218:565 219:401 220:1222 221:422 222:337 223:77 End of report
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