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@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 30 Jul, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 365335 Prefixes after maximum aggregation: 165793 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 181250 Total ASes present in the Internet Routing Table: 38300 Prefixes per ASN: 9.54 Origin-only ASes present in the Internet Routing Table: 31802 Origin ASes announcing only one prefix: 15306 Transit ASes present in the Internet Routing Table: 5217 Transit-only ASes present in the Internet Routing Table: 138 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 34 Max AS path prepend of ASN (22394) 31 Prefixes from unregistered ASNs in the Routing Table: 1005 Unregistered ASNs in the Routing Table: 569 Number of 32-bit ASNs allocated by the RIRs: 1603 Number of 32-bit ASNs visible in the Routing Table: 1281 Prefixes from 32-bit ASNs in the Routing Table: 2966 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 118 Number of addresses announced to Internet: 2488168960 Equivalent to 148 /8s, 78 /16s and 114 /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: 91.2 Total number of prefixes smaller than registry allocations: 152319 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 91501 Total APNIC prefixes after maximum aggregation: 30401 APNIC Deaggregation factor: 3.01 Prefixes being announced from the APNIC address blocks: 88083 Unique aggregates announced from the APNIC address blocks: 37486 APNIC Region origin ASes present in the Internet Routing Table: 4521 APNIC Prefixes per ASN: 19.48 APNIC Region origin ASes announcing only one prefix: 1253 APNIC Region transit ASes present in the Internet Routing Table: 713 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 66 Number of APNIC addresses announced to Internet: 622567776 Equivalent to 37 /8s, 27 /16s and 161 /24s Percentage of available APNIC address space announced: 79.0 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: 141849 Total ARIN prefixes after maximum aggregation: 73135 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 113666 Unique aggregates announced from the ARIN address blocks: 46757 ARIN Region origin ASes present in the Internet Routing Table: 14520 ARIN Prefixes per ASN: 7.83 ARIN Region origin ASes announcing only one prefix: 5565 ARIN Region transit ASes present in the Internet Routing Table: 1537 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 803106176 Equivalent to 47 /8s, 222 /16s and 109 /24s Percentage of available ARIN address space announced: 63.8 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: 86823 Total RIPE prefixes after maximum aggregation: 49404 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 80166 Unique aggregates announced from the RIPE address blocks: 53029 RIPE Region origin ASes present in the Internet Routing Table: 15823 RIPE Prefixes per ASN: 5.07 RIPE Region origin ASes announcing only one prefix: 7899 RIPE Region transit ASes present in the Internet Routing Table: 2509 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: 924 Number of RIPE addresses announced to Internet: 484366720 Equivalent to 28 /8s, 222 /16s and 217 /24s Percentage of available RIPE address space announced: 78.0 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: 33819 Total LACNIC prefixes after maximum aggregation: 7619 LACNIC Deaggregation factor: 4.44 Prefixes being announced from the LACNIC address blocks: 33043 Unique aggregates announced from the LACNIC address blocks: 17222 LACNIC Region origin ASes present in the Internet Routing Table: 1492 LACNIC Prefixes per ASN: 22.15 LACNIC Region origin ASes announcing only one prefix: 440 LACNIC Region transit ASes present in the Internet Routing Table: 275 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 275 Number of LACNIC addresses announced to Internet: 87208704 Equivalent to 5 /8s, 50 /16s and 179 /24s Percentage of available LACNIC address space announced: 57.8 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: 8186 Total AfriNIC prefixes after maximum aggregation: 1976 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 6472 Unique aggregates announced from the AfriNIC address blocks: 2027 AfriNIC Region origin ASes present in the Internet Routing Table: 476 AfriNIC Prefixes per ASN: 13.60 AfriNIC Region origin ASes announcing only one prefix: 149 AfriNIC Region transit ASes present in the Internet Routing Table: 106 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: 4 Number of AfriNIC addresses announced to Internet: 26891520 Equivalent to 1 /8s, 154 /16s and 85 /24s Percentage of available AfriNIC address space announced: 40.1 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 2478 11045 945 Korea Telecom (KIX) 17974 1747 516 31 PT TELEKOMUNIKASI INDONESIA 7545 1558 301 85 TPG Internet Pty Ltd 4755 1513 635 172 TATA Communications formerly 7552 1314 1064 7 Vietel Corporation 24560 1194 336 187 Bharti Airtel Ltd., Telemedia 9829 1115 929 42 BSNL National Internet Backbo 9583 1061 78 499 Sify Limited 4808 1052 2093 299 CNCGROUP IP network: China169 17488 977 189 114 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 3620 3818 237 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1812 681 121 PaeTec Communications, Inc. 4323 1615 1082 401 Time Warner Telecom 7029 1604 993 229 Windstream Communications Inc 20115 1591 1538 623 Charter Communications 19262 1413 4792 392 Verizon Global Networks 22773 1406 2900 90 Cox Communications, Inc. 7018 1362 7068 890 AT&T WorldNet Services 2386 1257 520 906 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 534 106 185 BILISIM TELEKOM 6830 512 1788 316 UPC Distribution Services 3292 468 2078 403 TDC Tele Danmark 20940 466 133 358 Akamai Technologies European 12479 456 593 7 Uni2 Autonomous System 8866 454 133 26 Bulgarian Telecommunication C 29049 431 31 49 AzerSat LLC. 3320 425 8151 371 Deutsche Telekom AG 8551 404 354 44 Bezeq International 3301 397 1855 346 TeliaNet Sweden 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 1565 288 167 TVCABLE BOGOTA 8151 1421 2748 352 UniNet S.A. de C.V. 28573 1283 996 67 NET Servicos de Comunicao S.A 7303 1065 577 175 Telecom Argentina Stet-France 6503 749 450 68 AVANTEL, S.A. 14420 701 56 82 CORPORACION NACIONAL DE TELEC 22047 578 322 17 VTR PUNTO NET S.A. 3816 532 232 97 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 510 53 54 Telconet 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 24863 799 147 36 LINKdotNET AS number 8452 794 445 11 TEDATA 15475 510 74 8 Nile Online 3741 265 937 226 The Internet Solution 6713 260 519 14 Itissalat Al-MAGHRIB 36992 259 415 15 Etisalat MISR 33776 227 13 6 Starcomms Nigeria Limited 24835 177 78 10 RAYA Telecom - Egypt 29571 158 17 11 Ci Telecom Autonomous system 16637 146 665 84 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 3620 3818 237 bellsouth.net, inc. 23456 2966 713 1585 32-bit ASN transition 4766 2478 11045 945 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 1785 1812 681 121 PaeTec Communications, Inc. 17974 1747 516 31 PT TELEKOMUNIKASI INDONESIA 4323 1615 1082 401 Time Warner Telecom 7029 1604 993 229 Windstream Communications Inc 20115 1591 1538 623 Charter Communications 10620 1565 288 167 TVCABLE BOGOTA Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 17974 1747 1716 PT TELEKOMUNIKASI INDONESIA 1785 1812 1691 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2478 1533 Korea Telecom (KIX) 7545 1558 1473 TPG Internet Pty Ltd 10620 1565 1398 TVCABLE BOGOTA 23456 2966 1381 32-bit ASN transition 7029 1604 1375 Windstream Communications Inc 4755 1513 1341 TATA Communications formerly 22773 1406 1316 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 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 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 /8:20 /9:12 /10:27 /11:80 /12:233 /13:465 /14:799 /15:1407 /16:12045 /17:5889 /18:9805 /19:19535 /20:26307 /21:26309 /22:35049 /23:33972 /24:190038 /25:1098 /26:1287 /27:738 /28:203 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2243 3620 bellsouth.net, inc. 18566 1869 1913 Covad Communications 23456 1463 2966 32-bit ASN transition 10620 1460 1565 TVCABLE BOGOTA 7029 1303 1604 Windstream Communications Inc 11492 1096 1142 Cable One 7011 1056 1158 Citizens Utilities 1785 1053 1812 PaeTec Communications, Inc. 6478 968 996 AT&T Worldnet Services 22773 905 1406 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:340 2:46 4:16 5:1 6:3 8:339 12:1957 13:1 14:498 15:15 16:3 17:5 20:10 23:18 24:1678 27:861 31:508 32:64 33:4 34:2 36:4 38:729 40:104 41:2560 42:36 44:3 46:1051 47:3 49:201 50:376 52:13 54:2 55:6 56:2 57:34 58:870 59:487 60:378 61:1178 62:1045 63:1938 64:3987 65:2295 66:3905 67:1887 68:1113 69:3057 70:779 71:373 72:1864 74:2436 75:328 76:341 77:864 78:706 79:468 80:1119 81:839 82:502 83:466 84:689 85:1064 86:517 87:763 88:333 89:1533 90:224 91:3980 92:528 93:1056 94:1334 95:864 96:420 97:264 98:912 99:37 101:82 103:162 106:78 107:26 108:73 109:1029 110:605 111:715 112:305 113:407 114:554 115:685 116:987 117:682 118:856 119:1176 120:314 121:678 122:1608 123:976 124:1312 125:1328 128:245 129:169 130:169 131:579 132:113 133:21 134:214 135:52 136:215 137:132 138:296 139:115 140:477 141:255 142:403 143:421 144:486 145:56 146:454 147:216 148:673 149:248 150:160 151:189 152:341 153:182 154:5 155:399 156:199 157:353 158:140 159:454 160:315 161:205 162:310 163:166 164:507 165:369 166:531 167:432 168:746 169:153 170:836 171:81 172:1 173:1617 174:610 175:390 176:147 177:184 178:994 180:911 181:26 182:513 183:234 184:342 185:1 186:1310 187:765 188:894 189:967 190:5031 192:5916 193:4980 194:3507 195:3061 196:1199 197:46 198:3582 199:3993 200:5508 201:1479 202:8397 203:8455 204:4240 205:2317 206:2663 207:2800 208:3992 209:3410 210:2679 211:1454 212:2089 213:1782 214:792 215:69 216:4900 217:1632 218:548 219:342 220:1226 221:494 222:358 223:235 End of report