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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Mar 4 19:37:34 CET 2011
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 05 Mar, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 349307 Prefixes after maximum aggregation: 157488 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 172148 Total ASes present in the Internet Routing Table: 36007 Prefixes per ASN: 9.70 Origin-only ASes present in the Internet Routing Table: 31031 Origin ASes announcing only one prefix: 14946 Transit ASes present in the Internet Routing Table: 4976 Transit-only ASes present in the Internet Routing Table: 122 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: 375 Unregistered ASNs in the Routing Table: 164 Number of 32-bit ASNs allocated by the RIRs: 1169 Prefixes from 32-bit ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 258 Number of addresses announced to Internet: 2455757344 Equivalent to 146 /8s, 95 /16s and 226 /24s Percentage of available address space announced: 66.3 Percentage of allocated address space announced: 66.3 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 89.1 Total number of prefixes smaller than registry allocations: 144961 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 86769 Total APNIC prefixes after maximum aggregation: 29668 APNIC Deaggregation factor: 2.92 Prefixes being announced from the APNIC address blocks: 83555 Unique aggregates announced from the APNIC address blocks: 36074 APNIC Region origin ASes present in the Internet Routing Table: 4337 APNIC Prefixes per ASN: 19.27 APNIC Region origin ASes announcing only one prefix: 1198 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 594716448 Equivalent to 35 /8s, 114 /16s and 167 /24s Percentage of available APNIC address space announced: 75.4 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, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 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: 140246 Total ARIN prefixes after maximum aggregation: 71637 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110832 Unique aggregates announced from the ARIN address blocks: 44959 ARIN Region origin ASes present in the Internet Routing Table: 14236 ARIN Prefixes per ASN: 7.79 ARIN Region origin ASes announcing only one prefix: 5417 ARIN Region transit ASes present in the Internet Routing Table: 1476 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 787480704 Equivalent to 46 /8s, 240 /16s and 0 /24s Percentage of available ARIN address space announced: 62.6 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, 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, 23/8, 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, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 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: 82597 Total RIPE prefixes after maximum aggregation: 46884 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 75881 Unique aggregates announced from the RIPE address blocks: 49204 RIPE Region origin ASes present in the Internet Routing Table: 15386 RIPE Prefixes per ASN: 4.93 RIPE Region origin ASes announcing only one prefix: 7770 RIPE Region transit ASes present in the Internet Routing Table: 2391 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 478711936 Equivalent to 28 /8s, 136 /16s and 144 /24s Percentage of available RIPE address space announced: 77.1 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 40960-45055, 47104-52223, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31972 Total LACNIC prefixes after maximum aggregation: 7376 LACNIC Deaggregation factor: 4.33 Prefixes being announced from the LACNIC address blocks: 30817 Unique aggregates announced from the LACNIC address blocks: 16093 LACNIC Region origin ASes present in the Internet Routing Table: 1434 LACNIC Prefixes per ASN: 21.49 LACNIC Region origin ASes announcing only one prefix: 433 LACNIC Region transit ASes present in the Internet Routing Table: 263 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 81347200 Equivalent to 4 /8s, 217 /16s and 66 /24s Percentage of available LACNIC address space announced: 53.9 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 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: 7507 Total AfriNIC prefixes after maximum aggregation: 1815 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 5903 Unique aggregates announced from the AfriNIC address blocks: 1957 AfriNIC Region origin ASes present in the Internet Routing Table: 433 AfriNIC Prefixes per ASN: 13.63 AfriNIC Region origin ASes announcing only one prefix: 128 AfriNIC Region transit ASes present in the Internet Routing Table: 96 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21862912 Equivalent to 1 /8s, 77 /16s and 154 /24s Percentage of available AfriNIC address space announced: 32.6 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2419 9501 891 Korea Telecom (KIX) 7545 1603 301 83 TPG Internet Pty Ltd 4755 1421 638 165 TATA Communications formerly 17974 1405 475 29 PT TELEKOMUNIKASI INDONESIA 24560 1120 323 185 Bharti Airtel Ltd., Telemedia 4808 1046 2142 294 CNCGROUP IP network: China169 9583 1045 77 488 Sify Limited 17488 940 161 102 Hathway IP Over Cable Interne 9829 898 764 46 BSNL National Internet Backbo 18101 878 115 139 Reliance Infocom Ltd Internet 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 3683 3855 260 bellsouth.net, inc. 4323 2582 1109 403 Time Warner Telecom 19262 1829 4953 282 Verizon Global Networks 1785 1790 697 131 PaeTec Communications, Inc. 6478 1531 297 94 AT&T Worldnet Services 20115 1527 1534 650 Charter Communications 18566 1522 326 178 Covad Communications 7018 1364 6706 885 AT&T WorldNet Services 2386 1296 537 939 AT&T Data Communications Serv 11492 1288 236 70 Cable One 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 6830 514 1780 319 UPC Distribution Services 9198 470 267 15 Kazakhtelecom Data Network Ad 34984 466 98 146 BILISIM TELEKOM 3292 448 1996 389 TDC Tele Danmark 8866 442 133 23 Bulgarian Telecommunication C 20940 415 99 319 Akamai Technologies European 3320 406 7604 354 Deutsche Telekom AG 8551 405 355 38 Bezeq International 702 396 1800 310 UUNET - Commercial IP service 12479 394 577 6 Uni2 Autonomous System 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 10620 1382 257 165 TVCABLE BOGOTA 8151 1361 2700 363 UniNet S.A. de C.V. 28573 1221 961 83 NET Servicos de Comunicao S.A 6503 1174 354 73 AVANTEL, S.A. 7303 911 464 147 Telecom Argentina Stet-France 14420 644 56 93 CORPORACION NACIONAL DE TELEC 22047 541 310 15 VTR PUNTO NET S.A. 3816 514 225 96 Empresa Nacional de Telecomun 7738 479 922 30 Telecomunicacoes da Bahia S.A 11172 463 83 82 Servicios Alestra S.A de C.V 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 795 445 11 TEDATA 24863 766 147 39 LINKdotNET AS number 15475 439 90 10 Nile Online 36992 301 271 14 Etisalat MISR 3741 266 987 228 The Internet Solution 33776 230 13 5 Starcomms Nigeria Limited 24835 222 78 10 RAYA Telecom - Egypt 29571 192 17 11 Ci Telecom Autonomous system 6713 187 191 17 Itissalat Al-MAGHRIB 16637 147 439 87 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 3683 3855 260 bellsouth.net, inc. 4323 2582 1109 403 Time Warner Telecom 4766 2419 9501 891 Korea Telecom (KIX) 19262 1829 4953 282 Verizon Global Networks 1785 1790 697 131 PaeTec Communications, Inc. 7545 1603 301 83 TPG Internet Pty Ltd 6478 1531 297 94 AT&T Worldnet Services 20115 1527 1534 650 Charter Communications 18566 1522 326 178 Covad Communications 4755 1421 638 165 TATA Communications formerly 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 2582 2179 Time Warner Telecom 1785 1790 1659 PaeTec Communications, Inc. 19262 1829 1547 Verizon Global Networks 4766 2419 1528 Korea Telecom (KIX) 7545 1603 1520 TPG Internet Pty Ltd 6478 1531 1437 AT&T Worldnet Services 17974 1405 1376 PT TELEKOMUNIKASI INDONESIA 18566 1522 1344 Covad Communications 4755 1421 1256 TATA Communications formerly 11492 1288 1218 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 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 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 1.5.0.0/16 38639 NTT Communications Corporatio 1.6.0.0/15 38639 NTT Communications Corporatio 1.8.0.0/16 38639 NTT Communications Corporatio 1.20.0.0/16 38639 NTT Communications Corporatio 1.32.0.0/16 38639 NTT Communications Corporatio 1.37.0.0/16 38639 NTT Communications Corporatio 1.187.0.0/16 38639 NTT Communications Corporatio 14.0.0.0/24 38639 NTT Communications Corporatio 14.0.1.0/24 38639 NTT Communications Corporatio 14.0.2.0/23 38639 NTT Communications Corporatio 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 /8:24 /9:10 /10:26 /11:73 /12:217 /13:446 /14:764 /15:1371 /16:11553 /17:5660 /18:9343 /19:18973 /20:24536 /21:25127 /22:33465 /23:31886 /24:182381 /25:1154 /26:1395 /27:713 /28:171 /29:9 /30:3 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2272 3683 bellsouth.net, inc. 18566 1500 1522 Covad Communications 6478 1485 1531 AT&T Worldnet Services 4323 1391 2582 Time Warner Telecom 10620 1273 1382 TVCABLE BOGOTA 11492 1245 1288 Cable One 7011 1057 1158 Citizens Utilities 1785 1055 1790 PaeTec Communications, Inc. 6503 956 1174 AVANTEL, S.A. 19262 941 1829 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:262 2:61 4:14 5:1 8:339 9:1 12:2029 13:1 14:423 15:15 16:3 17:8 20:9 23:1 24:1508 27:600 31:3 32:60 33:4 34:2 36:2 37:1 38:706 39:1 40:101 41:2295 42:13 44:3 46:686 47:4 49:164 50:174 52:13 55:3 56:2 57:41 58:857 59:477 60:384 61:1108 62:1022 63:1926 64:3850 65:2347 66:4323 67:1777 68:1067 69:2875 70:699 71:406 72:1997 73:1 74:2356 75:291 76:342 77:846 78:697 79:444 80:1058 81:791 82:522 83:463 84:636 85:1046 86:574 87:753 88:357 89:1568 90:169 91:3573 92:493 93:1053 94:1224 95:782 96:463 97:253 98:812 99:33 101:50 106:1 107:4 108:127 109:910 110:471 111:712 112:319 113:388 114:510 115:668 116:955 117:677 118:688 119:1045 120:255 121:701 122:1624 123:1043 124:1290 125:1258 128:266 129:165 130:172 131:562 132:108 133:20 134:219 135:49 136:211 137:146 138:295 139:118 140:486 141:203 142:374 143:386 144:487 145:51 146:435 147:203 148:638 149:273 150:166 151:229 152:299 153:180 154:3 155:376 156:178 157:343 158:127 159:378 160:311 161:210 162:278 163:155 164:486 165:345 166:501 167:409 168:728 169:157 170:758 171:69 172:2 173:1245 174:519 175:321 176:1 177:33 178:786 180:809 181:4 182:387 183:242 184:249 186:1033 187:812 188:906 189:1031 190:4580 192:5769 193:4792 194:3502 195:2953 196:1196 197:4 198:3576 199:3838 200:5577 201:1583 202:8235 203:8430 204:4108 205:2303 206:2652 207:3069 208:3901 209:3483 210:2638 211:1356 212:1927 213:1730 214:758 215:63 216:4843 217:1653 218:544 219:373 220:1152 221:473 222:319 223:104 End of report
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