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[routing-wg] Weekly Routing Table Report
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Routing Analysis Role Account
cscora at apnic.net
Fri Jun 10 21:02:38 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 11 Jun, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 359107 Prefixes after maximum aggregation: 162630 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 178253 Total ASes present in the Internet Routing Table: 37831 Prefixes per ASN: 9.49 Origin-only ASes present in the Internet Routing Table: 31580 Origin ASes announcing only one prefix: 15168 Transit ASes present in the Internet Routing Table: 5113 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 783 Unregistered ASNs in the Routing Table: 419 Number of 32-bit ASNs allocated by the RIRs: 1446 Number of 32-bit ASNs visible in the Routing Table: 1138 Prefixes from 32-bit ASNs in the Routing Table: 2602 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 164 Number of addresses announced to Internet: 2487684608 Equivalent to 148 /8s, 71 /16s and 14 /24s Percentage of available address space announced: 67.1 Percentage of allocated address space announced: 67.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.1 Total number of prefixes smaller than registry allocations: 149733 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 88931 Total APNIC prefixes after maximum aggregation: 29983 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 85430 Unique aggregates announced from the APNIC address blocks: 36696 APNIC Region origin ASes present in the Internet Routing Table: 4477 APNIC Prefixes per ASN: 19.08 APNIC Region origin ASes announcing only one prefix: 1251 APNIC Region transit ASes present in the Internet Routing Table: 703 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 46 Number of APNIC addresses announced to Internet: 620146464 Equivalent to 36 /8s, 246 /16s and 175 /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: 140907 Total ARIN prefixes after maximum aggregation: 71613 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112819 Unique aggregates announced from the ARIN address blocks: 46088 ARIN Region origin ASes present in the Internet Routing Table: 14426 ARIN Prefixes per ASN: 7.82 ARIN Region origin ASes announcing only one prefix: 5503 ARIN Region transit ASes present in the Internet Routing Table: 1517 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: 818671872 Equivalent to 48 /8s, 203 /16s and 241 /24s Percentage of available ARIN address space announced: 65.1 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, 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: 85501 Total RIPE prefixes after maximum aggregation: 48681 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 78946 Unique aggregates announced from the RIPE address blocks: 52214 RIPE Region origin ASes present in the Internet Routing Table: 15695 RIPE Prefixes per ASN: 5.03 RIPE Region origin ASes announcing only one prefix: 7840 RIPE Region transit ASes present in the Internet Routing Table: 2472 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 847 Number of RIPE addresses announced to Internet: 477055488 Equivalent to 28 /8s, 111 /16s and 74 /24s Percentage of available RIPE address space announced: 76.9 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, 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: 32899 Total LACNIC prefixes after maximum aggregation: 7498 LACNIC Deaggregation factor: 4.39 Prefixes being announced from the LACNIC address blocks: 31955 Unique aggregates announced from the LACNIC address blocks: 16895 LACNIC Region origin ASes present in the Internet Routing Table: 1451 LACNIC Prefixes per ASN: 22.02 LACNIC Region origin ASes announcing only one prefix: 433 LACNIC Region transit ASes present in the Internet Routing Table: 253 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: 228 Number of LACNIC addresses announced to Internet: 84687104 Equivalent to 5 /8s, 12 /16s and 57 /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: 8043 Total AfriNIC prefixes after maximum aggregation: 1920 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6357 Unique aggregates announced from the AfriNIC address blocks: 1904 AfriNIC Region origin ASes present in the Internet Routing Table: 460 AfriNIC Prefixes per ASN: 13.82 AfriNIC Region origin ASes announcing only one prefix: 141 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: 24155648 Equivalent to 1 /8s, 112 /16s and 150 /24s Percentage of available AfriNIC address space announced: 36.0 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 2462 9500 924 Korea Telecom (KIX) 17974 1561 441 38 PT TELEKOMUNIKASI INDONESIA 7545 1539 301 86 TPG Internet Pty Ltd 4755 1471 634 166 TATA Communications formerly 24560 1152 336 187 Bharti Airtel Ltd., Telemedia 7552 1146 1064 7 Vietel Corporation 9583 1071 79 500 Sify Limited 4808 1052 2098 299 CNCGROUP IP network: China169 9829 1029 870 67 BSNL National Internet Backbo 17488 946 191 102 Hathway IP Over Cable Interne 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 3628 3822 252 bellsouth.net, inc. 4323 1963 1097 401 Time Warner Telecom 18566 1913 365 237 Covad Communications 1785 1791 681 122 PaeTec Communications, Inc. 6478 1721 319 45 AT&T Worldnet Services 20115 1539 1541 633 Charter Communications 19262 1490 4932 314 Verizon Global Networks 7018 1364 7052 891 AT&T WorldNet Services 22773 1340 2897 87 Cox Communications, Inc. 2386 1271 536 912 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 34984 521 106 180 BILISIM TELEKOM 6830 513 1780 320 UPC Distribution Services 3292 464 2078 399 TDC Tele Danmark 20940 462 135 354 Akamai Technologies European 29049 451 33 48 AzerSat LLC. 8866 445 134 26 Bulgarian Telecommunication C 12479 436 593 7 Uni2 Autonomous System 3320 425 8152 370 Deutsche Telekom AG 8551 406 355 45 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 1513 278 157 TVCABLE BOGOTA 28573 1321 992 80 NET Servicos de Comunicao S.A 8151 1268 2727 364 UniNet S.A. de C.V. 7303 990 506 170 Telecom Argentina Stet-France 6503 739 354 73 AVANTEL, S.A. 14420 677 54 80 CORPORACION NACIONAL DE TELEC 22047 564 310 15 VTR PUNTO NET S.A. 3816 528 231 94 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 13489 516 262 124 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 797 445 11 TEDATA 24863 795 147 37 LINKdotNET AS number 15475 527 74 8 Nile Online 36992 308 415 18 Etisalat MISR 3741 264 937 225 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 24835 210 78 10 RAYA Telecom - Egypt 33776 200 12 11 Starcomms Nigeria Limited 29571 192 17 11 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 3628 3822 252 bellsouth.net, inc. 23456 2602 639 1421 32-bit ASN transition 4766 2462 9500 924 Korea Telecom (KIX) 4323 1963 1097 401 Time Warner Telecom 18566 1913 365 237 Covad Communications 1785 1791 681 122 PaeTec Communications, Inc. 6478 1721 319 45 AT&T Worldnet Services 17974 1561 441 38 PT TELEKOMUNIKASI INDONESIA 7545 1539 301 86 TPG Internet Pty Ltd 20115 1539 1541 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 18566 1913 1676 Covad Communications 6478 1721 1676 AT&T Worldnet Services 1785 1791 1669 PaeTec Communications, Inc. 4323 1963 1562 Time Warner Telecom 4766 2462 1538 Korea Telecom (KIX) 17974 1561 1523 PT TELEKOMUNIKASI INDONESIA 7545 1539 1453 TPG Internet Pty Ltd 10620 1513 1356 TVCABLE BOGOTA 4755 1471 1305 TATA Communications formerly 22773 1340 1253 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. 31.131.192.0/19 42368 RIPE Network Coordination Cen 41.190.32.0/23 31856 CABSAS 41.190.34.0/23 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 /8:22 /9:12 /10:28 /11:80 /12:230 /13:462 /14:800 /15:1394 /16:11946 /17:5847 /18:9787 /19:19372 /20:25829 /21:26021 /22:34187 /23:33194 /24:186895 /25:1055 /26:1225 /27:663 /28:41 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2233 3628 bellsouth.net, inc. 18566 1870 1913 Covad Communications 6478 1675 1721 AT&T Worldnet Services 10620 1403 1513 TVCABLE BOGOTA 23456 1290 2602 32-bit ASN transition 11492 1092 1138 Cable One 7011 1061 1161 Citizens Utilities 1785 1050 1791 PaeTec Communications, Inc. 7029 909 1159 Alltel Information Services, 4323 875 1963 Time Warner Telecom Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:285 2:48 4:16 5:1 6:3 8:338 12:1977 13:1 14:461 15:15 16:3 17:8 20:10 23:11 24:1611 27:772 31:429 32:60 33:4 34:2 37:1 38:737 40:103 41:2515 42:2 44:3 46:957 47:3 49:187 50:405 52:13 54:2 55:4 56:2 57:29 58:841 59:475 60:387 61:1122 62:1053 63:1935 64:3939 65:2254 66:4138 67:1884 68:1086 69:3003 70:705 71:373 72:1846 74:2354 75:309 76:340 77:881 78:706 79:457 80:1106 81:832 82:493 83:457 84:666 85:1080 86:581 87:751 88:330 89:1529 90:204 91:3839 92:526 93:1037 94:1292 95:825 96:444 97:251 98:871 99:36 101:68 103:56 106:6 107:11 108:83 109:973 110:601 111:710 112:299 113:399 114:537 115:687 116:959 117:675 118:793 119:1142 120:313 121:669 122:1627 123:950 124:1274 125:1217 128:261 129:175 130:164 131:577 132:110 133:19 134:214 135:48 136:214 137:144 138:300 139:112 140:469 141:238 142:404 143:417 144:495 145:54 146:448 147:214 148:606 149:247 150:172 151:187 152:330 153:180 154:3 155:399 156:195 157:352 158:138 159:380 160:318 161:208 162:309 163:165 164:500 165:352 166:530 167:424 168:729 169:155 170:832 171:77 172:1 173:1605 174:584 175:371 176:133 177:135 178:1003 180:886 181:18 182:466 183:216 184:297 185:1 186:1188 187:753 188:848 189:910 190:4890 192:5841 193:4918 194:3497 195:3003 196:1231 197:20 198:3585 199:3927 200:5498 201:1480 202:8316 203:8357 204:4187 205:2339 206:2679 207:2826 208:3946 209:3471 210:2713 211:1400 212:2008 213:1727 214:742 215:68 216:4923 217:1638 218:548 219:364 220:1205 221:490 222:317 223:156 End of report
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