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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Jun 3 21:01:02 CEST 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 <pfsinoz at gmail.com>. Routing Table Report 04:00 +10GMT Sat 04 Jun, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 358561 Prefixes after maximum aggregation: 162439 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 178183 Total ASes present in the Internet Routing Table: 37775 Prefixes per ASN: 9.49 Origin-only ASes present in the Internet Routing Table: 31544 Origin ASes announcing only one prefix: 15151 Transit ASes present in the Internet Routing Table: 5102 Transit-only ASes present in the Internet Routing Table: 134 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 747 Unregistered ASNs in the Routing Table: 395 Number of 32-bit ASNs allocated by the RIRs: 1425 Number of 32-bit ASNs visible in the Routing Table: 1129 Prefixes from 32-bit ASNs in the Routing Table: 2579 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 165 Number of addresses announced to Internet: 2450918336 Equivalent to 146 /8s, 22 /16s and 11 /24s Percentage of available address space announced: 66.1 Percentage of allocated address space announced: 66.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.0 Total number of prefixes smaller than registry allocations: 149599 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 88800 Total APNIC prefixes after maximum aggregation: 30084 APNIC Deaggregation factor: 2.95 Prefixes being announced from the APNIC address blocks: 85253 Unique aggregates announced from the APNIC address blocks: 36662 APNIC Region origin ASes present in the Internet Routing Table: 4475 APNIC Prefixes per ASN: 19.05 APNIC Region origin ASes announcing only one prefix: 1253 APNIC Region transit ASes present in the Internet Routing Table: 705 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 20 Number of APNIC region 32-bit ASNs visible in the Routing Table: 47 Number of APNIC addresses announced to Internet: 619636256 Equivalent to 36 /8s, 238 /16s and 230 /24s Percentage of available APNIC address space announced: 78.6 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: 140579 Total ARIN prefixes after maximum aggregation: 71516 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112681 Unique aggregates announced from the ARIN address blocks: 46229 ARIN Region origin ASes present in the Internet Routing Table: 14406 ARIN Prefixes per ASN: 7.82 ARIN Region origin ASes announcing only one prefix: 5495 ARIN Region transit ASes present in the Internet Routing Table: 1510 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 801985792 Equivalent to 47 /8s, 205 /16s and 85 /24s Percentage of available ARIN address space announced: 63.7 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, 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: 85208 Total RIPE prefixes after maximum aggregation: 48504 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 78635 Unique aggregates announced from the RIPE address blocks: 52035 RIPE Region origin ASes present in the Internet Routing Table: 15661 RIPE Prefixes per ASN: 5.02 RIPE Region origin ASes announcing only one prefix: 7830 RIPE Region transit ASes present in the Internet Routing Table: 2461 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 834 Number of RIPE addresses announced to Internet: 475054592 Equivalent to 28 /8s, 80 /16s and 194 /24s Percentage of available RIPE address space announced: 76.5 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: 33171 Total LACNIC prefixes after maximum aggregation: 7536 LACNIC Deaggregation factor: 4.40 Prefixes being announced from the LACNIC address blocks: 32258 Unique aggregates announced from the LACNIC address blocks: 16961 LACNIC Region origin ASes present in the Internet Routing Table: 1462 LACNIC Prefixes per ASN: 22.06 LACNIC Region origin ASes announcing only one prefix: 431 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: 29 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 231 Number of LACNIC addresses announced to Internet: 84647424 Equivalent to 5 /8s, 11 /16s and 158 /24s Percentage of available LACNIC address space announced: 56.1 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: 7999 Total AfriNIC prefixes after maximum aggregation: 1909 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6308 Unique aggregates announced from the AfriNIC address blocks: 1917 AfriNIC Region origin ASes present in the Internet Routing Table: 458 AfriNIC Prefixes per ASN: 13.77 AfriNIC Region origin ASes announcing only one prefix: 142 AfriNIC Region transit ASes present in the Internet Routing Table: 100 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23586048 Equivalent to 1 /8s, 103 /16s and 229 /24s Percentage of available AfriNIC address space announced: 35.1 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 2460 9500 922 Korea Telecom (KIX) 17974 1541 441 38 PT TELEKOMUNIKASI INDONESIA 7545 1537 301 86 TPG Internet Pty Ltd 4755 1470 634 166 TATA Communications formerly 24560 1155 337 187 Bharti Airtel Ltd., Telemedia 7552 1141 1064 7 Vietel Corporation 4808 1086 2144 308 CNCGROUP IP network: China169 9583 1082 80 510 Sify Limited 9829 956 843 82 BSNL National Internet Backbo 18101 931 116 139 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 3641 3822 256 bellsouth.net, inc. 4323 1973 1081 400 Time Warner Telecom 18566 1875 355 269 Covad Communications 1785 1790 681 122 PaeTec Communications, Inc. 6478 1716 318 45 AT&T Worldnet Services 20115 1535 1540 633 Charter Communications 19262 1492 4936 307 Verizon Global Networks 7018 1367 7068 892 AT&T WorldNet Services 22773 1337 2897 88 Cox Communications, Inc. 2386 1268 536 911 AT&T Data Communications Serv 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 517 1780 320 UPC Distribution Services 34984 517 106 179 BILISIM TELEKOM 3292 461 2078 396 TDC Tele Danmark 20940 458 134 350 Akamai Technologies European 29049 451 33 48 AzerSat LLC. 8866 445 134 26 Bulgarian Telecommunication C 12479 432 593 7 Uni2 Autonomous System 3320 425 8152 370 Deutsche Telekom AG 8551 405 354 48 Bezeq International 702 396 1803 310 UUNET - Commercial IP service 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 1512 278 157 TVCABLE BOGOTA 8151 1383 2724 364 UniNet S.A. de C.V. 28573 1319 992 86 NET Servicos de Comunicao S.A 7303 960 504 154 Telecom Argentina Stet-France 6503 734 354 73 AVANTEL, S.A. 14420 675 54 89 CORPORACION NACIONAL DE TELEC 22047 565 310 15 VTR PUNTO NET S.A. 3816 527 231 93 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 13489 515 262 124 Orbitel S.A. E.S.P. 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 833 445 11 TEDATA 24863 721 147 37 LINKdotNET AS number 15475 544 90 8 Nile Online 36992 294 399 14 Etisalat MISR 3741 265 937 226 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 218 12 11 Starcomms Nigeria Limited 24835 208 78 10 RAYA Telecom - Egypt 29571 193 19 12 Ci Telecom Autonomous system 16637 150 441 86 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 3641 3822 256 bellsouth.net, inc. 23456 2579 639 1398 32-bit ASN transition 4766 2460 9500 922 Korea Telecom (KIX) 4323 1973 1081 400 Time Warner Telecom 18566 1875 355 269 Covad Communications 1785 1790 681 122 PaeTec Communications, Inc. 6478 1716 318 45 AT&T Worldnet Services 17974 1541 441 38 PT TELEKOMUNIKASI INDONESIA 7545 1537 301 86 TPG Internet Pty Ltd 20115 1535 1540 633 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6478 1716 1671 AT&T Worldnet Services 1785 1790 1668 PaeTec Communications, Inc. 18566 1875 1606 Covad Communications 4323 1973 1573 Time Warner Telecom 4766 2460 1538 Korea Telecom (KIX) 17974 1541 1503 PT TELEKOMUNIKASI INDONESIA 7545 1537 1451 TPG Internet Pty Ltd 10620 1512 1355 TVCABLE BOGOTA 4755 1470 1304 TATA Communications formerly 22773 1337 1249 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 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 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 27.0.128.0/17 7514 Media Exchange, Inc. 41.190.32.0/23 31856 CABSAS 41.190.34.0/23 31856 CABSAS 41.190.36.0/23 31856 CABSAS 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 /8:20 /9:12 /10:28 /11:81 /12:228 /13:461 /14:798 /15:1395 /16:11917 /17:5834 /18:9733 /19:19342 /20:25663 /21:25940 /22:34114 /23:33063 /24:186681 /25:1084 /26:1275 /27:711 /28:165 /29:8 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2243 3641 bellsouth.net, inc. 18566 1838 1875 Covad Communications 6478 1670 1716 AT&T Worldnet Services 10620 1402 1512 TVCABLE BOGOTA 23456 1260 2579 32-bit ASN transition 11492 1107 1153 Cable One 7011 1061 1160 Citizens Utilities 1785 1050 1790 PaeTec Communications, Inc. 4323 886 1973 Time Warner Telecom 22773 852 1337 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:282 2:48 4:16 5:1 6:3 8:336 12:1980 13:1 14:464 15:15 16:3 17:8 20:10 23:6 24:1613 27:752 31:419 32:60 33:4 34:2 37:1 38:737 40:102 41:2524 42:6 44:3 46:934 47:3 49:200 50:435 52:13 54:2 55:6 56:2 57:29 58:840 59:479 60:387 61:1131 62:1035 63:1937 64:3941 65:2289 66:4148 67:1867 68:1091 69:2989 70:704 71:352 72:1883 73:1 74:2354 75:305 76:341 77:873 78:700 79:460 80:1078 81:836 82:493 83:440 84:677 85:1070 86:592 87:753 88:331 89:1531 90:203 91:3808 92:524 93:1049 94:1283 95:820 96:506 97:249 98:860 99:35 101:61 103:47 106:1 107:7 108:85 109:957 110:600 111:708 112:304 113:404 114:535 115:668 116:957 117:693 118:797 119:1148 120:311 121:671 122:1626 123:962 124:1270 125:1217 128:261 129:173 130:164 131:570 132:109 133:19 134:213 135:48 136:214 137:145 138:300 139:109 140:481 141:239 142:404 143:406 144:487 145:54 146:447 147:211 148:595 149:244 150:172 151:185 152:328 153:179 154:3 155:397 156:195 157:352 158:138 159:380 160:317 161:207 162:281 163:165 164:501 165:354 166:515 167:427 168:728 169:155 170:801 171:77 172:1 173:1554 174:551 175:370 176:130 177:145 178:995 180:858 181:18 182:459 183:211 184:293 185:1 186:1215 187:771 188:849 189:897 190:4863 192:5849 193:4901 194:3494 195:2997 196:1220 197:19 198:3565 199:3923 200:5547 201:1484 202:8271 203:8390 204:4180 205:2310 206:2686 207:2875 208:3973 209:3476 210:2725 211:1398 212:1998 213:1723 214:730 215:72 216:4943 217:1638 218:546 219:363 220:1204 221:490 222:316 223:150 End of report
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