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 15 Oct, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 377646 Prefixes after maximum aggregation: 169419 Deaggregation factor: 2.23 Unique aggregates announced to Internet: 184801 Total ASes present in the Internet Routing Table: 39069 Prefixes per ASN: 9.67 Origin-only ASes present in the Internet Routing Table: 32330 Origin ASes announcing only one prefix: 15494 Transit ASes present in the Internet Routing Table: 5223 Transit-only ASes present in the Internet Routing Table: 133 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1442 Unregistered ASNs in the Routing Table: 793 Number of 32-bit ASNs allocated by the RIRs: 1853 Number of 32-bit ASNs visible in the Routing Table: 1516 Prefixes from 32-bit ASNs in the Routing Table: 3464 Special use prefixes present in the Routing Table: 8 Prefixes being announced from unallocated address space: 89 Number of addresses announced to Internet: 2483714272 Equivalent to 148 /8s, 10 /16s and 120 /24s Percentage of available address space announced: 67.0 Percentage of allocated address space announced: 67.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.5 Total number of prefixes smaller than registry allocations: 158719 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 94500 Total APNIC prefixes after maximum aggregation: 30930 APNIC Deaggregation factor: 3.06 Prefixes being announced from the APNIC address blocks: 90960 Unique aggregates announced from the APNIC address blocks: 37953 APNIC Region origin ASes present in the Internet Routing Table: 4582 APNIC Prefixes per ASN: 19.85 APNIC Region origin ASes announcing only one prefix: 1261 APNIC Region transit ASes present in the Internet Routing Table: 702 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 93 Number of APNIC addresses announced to Internet: 628403296 Equivalent to 37 /8s, 116 /16s and 172 /24s Percentage of available APNIC address space announced: 79.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 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: 145503 Total ARIN prefixes after maximum aggregation: 74267 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 117507 Unique aggregates announced from the ARIN address blocks: 47802 ARIN Region origin ASes present in the Internet Routing Table: 14725 ARIN Prefixes per ASN: 7.98 ARIN Region origin ASes announcing only one prefix: 5665 ARIN Region transit ASes present in the Internet Routing Table: 1559 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804636672 Equivalent to 47 /8s, 245 /16s and 200 /24s Percentage of available ARIN address space announced: 63.9 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: 90583 Total RIPE prefixes after maximum aggregation: 50537 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 83285 Unique aggregates announced from the RIPE address blocks: 53898 RIPE Region origin ASes present in the Internet Routing Table: 16041 RIPE Prefixes per ASN: 5.19 RIPE Region origin ASes announcing only one prefix: 7967 RIPE Region transit ASes present in the Internet Routing Table: 2509 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1068 Number of RIPE addresses announced to Internet: 490801024 Equivalent to 29 /8s, 65 /16s and 7 /24s Percentage of available RIPE address space announced: 79.1 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: 34946 Total LACNIC prefixes after maximum aggregation: 7861 LACNIC Deaggregation factor: 4.45 Prefixes being announced from the LACNIC address blocks: 34338 Unique aggregates announced from the LACNIC address blocks: 17889 LACNIC Region origin ASes present in the Internet Routing Table: 1539 LACNIC Prefixes per ASN: 22.31 LACNIC Region origin ASes announcing only one prefix: 449 LACNIC Region transit ASes present in the Internet Routing Table: 280 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 339 Number of LACNIC addresses announced to Internet: 90805120 Equivalent to 5 /8s, 105 /16s and 147 /24s Percentage of available LACNIC address space announced: 60.1 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: 8488 Total AfriNIC prefixes after maximum aggregation: 2006 AfriNIC Deaggregation factor: 4.23 Prefixes being announced from the AfriNIC address blocks: 6576 Unique aggregates announced from the AfriNIC address blocks: 1966 AfriNIC Region origin ASes present in the Internet Routing Table: 486 AfriNIC Prefixes per ASN: 13.53 AfriNIC Region origin ASes announcing only one prefix: 152 AfriNIC Region transit ASes present in the Internet Routing Table: 105 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27811072 Equivalent to 1 /8s, 168 /16s and 93 /24s Percentage of available AfriNIC address space announced: 41.4 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 2500 11063 960 Korea Telecom (KIX) 17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1612 303 86 TPG Internet Pty Ltd 4755 1540 639 173 TATA Communications formerly 7552 1387 1064 7 Vietel Corporation 9829 1165 989 28 BSNL National Internet Backbo 9583 1087 80 503 Sify Limited 4808 1081 2100 308 CNCGROUP IP network: China169 24560 1018 342 229 Bharti Airtel Ltd., Telemedia 18101 952 165 142 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 3547 3815 221 bellsouth.net, inc. 7029 2119 1016 197 Windstream Communications Inc 18566 2098 383 177 Covad Communications 1785 1836 680 121 PaeTec Communications, Inc. 4323 1631 1083 392 Time Warner Telecom 20115 1591 1541 635 Charter Communications 22773 1461 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1389 250 673 Mediacom Communications Corp 7018 1343 7079 850 AT&T WorldNet Services 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 8402 1455 352 13 Corbina telecom 6830 653 1927 415 UPC Distribution Services 34984 582 108 180 BILISIM TELEKOM 20940 544 183 418 Akamai Technologies European 3320 502 8169 384 Deutsche Telekom AG 3292 482 2082 408 TDC Tele Danmark 12479 482 593 7 Uni2 Autonomous System 8866 458 133 26 Bulgarian Telecommunication C 29049 424 31 55 AzerSat LLC. 8551 404 354 44 Bezeq International 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 1681 310 155 TVCABLE BOGOTA 8151 1425 2861 349 UniNet S.A. de C.V. 28573 1376 1015 68 NET Servicos de Comunicao S.A 7303 1164 683 175 Telecom Argentina Stet-France 22047 580 322 17 VTR PUNTO NET S.A. 27947 578 72 83 Telconet S.A 6503 574 450 69 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 527 230 101 Empresa Nacional de Telecomun 11172 522 85 95 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 24863 802 146 36 LINKdotNET AS number 8452 633 446 12 TEDATA 15475 444 74 8 Nile Online 36992 298 415 19 Etisalat MISR 3741 278 938 230 The Internet Solution 15706 244 32 6 Sudatel Internet Exchange Aut 6713 242 519 14 Itissalat Al-MAGHRIB 29571 217 17 13 Ci Telecom Autonomous system 33776 207 13 14 Starcomms Nigeria Limited 12258 198 28 58 Vodacom Internet Company 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 3547 3815 221 bellsouth.net, inc. 4766 2500 11063 960 Korea Telecom (KIX) 7029 2119 1016 197 Windstream Communications Inc 18566 2098 383 177 Covad Communications 17974 1937 519 33 PT TELEKOMUNIKASI INDONESIA 1785 1836 680 121 PaeTec Communications, Inc. 10620 1681 310 155 TVCABLE BOGOTA 4323 1631 1083 392 Time Warner Telecom 7545 1612 303 86 TPG Internet Pty Ltd 20115 1591 1541 635 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 7029 2119 1922 Windstream Communications Inc 18566 2098 1921 Covad Communications 17974 1937 1904 PT TELEKOMUNIKASI INDONESIA 1785 1836 1715 PaeTec Communications, Inc. 4766 2500 1540 Korea Telecom (KIX) 10620 1681 1526 TVCABLE BOGOTA 7545 1612 1526 TPG Internet Pty Ltd 8402 1455 1442 Corbina telecom 7552 1387 1380 Vietel Corporation 4755 1540 1367 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 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 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 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.80.0/24 30977 JSC "Yugra-Telecom" 128.0.81.0/24 30977 JSC "Yugra-Telecom" 128.0.82.0/24 30977 JSC "Yugra-Telecom" 128.0.83.0/24 30977 JSC "Yugra-Telecom" 128.0.84.0/24 30977 JSC "Yugra-Telecom" 128.0.85.0/24 30977 JSC "Yugra-Telecom" 128.0.86.0/24 30977 JSC "Yugra-Telecom" 128.0.87.0/24 30977 JSC "Yugra-Telecom" Complete listing at http://thyme.rand.apnic.net/current/data-dsua 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 /8:19 /9:12 /10:27 /11:81 /12:235 /13:464 /14:808 /15:1425 /16:11992 /17:6030 /18:10040 /19:19927 /20:27282 /21:27301 /22:36966 /23:35015 /24:196595 /25:1149 /26:1355 /27:745 /28:169 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2186 3547 bellsouth.net, inc. 18566 2047 2098 Covad Communications 7029 1806 2119 Windstream Communications Inc 10620 1576 1681 TVCABLE BOGOTA 8402 1432 1455 Corbina telecom 30036 1351 1389 Mediacom Communications Corp 11492 1115 1153 Cable One 1785 1056 1836 PaeTec Communications, Inc. 7011 1048 1166 Citizens Utilities 22773 949 1461 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:401 2:479 4:15 5:1 6:3 8:357 12:1954 13:1 14:541 15:11 16:3 17:7 20:9 23:58 24:1682 27:959 31:598 32:65 33:4 34:2 36:4 38:752 40:108 41:2630 42:50 44:3 46:990 47:3 49:268 50:447 52:13 55:6 56:2 57:37 58:876 59:493 60:364 61:1191 62:1093 63:1930 64:4103 65:2306 66:4255 67:1961 68:1156 69:3228 70:883 71:377 72:1863 74:2572 75:378 76:346 77:897 78:862 79:479 80:1124 81:825 82:500 83:536 84:637 85:1117 86:397 87:902 88:354 89:1590 90:269 91:4199 92:527 93:1512 94:1303 95:1046 96:438 97:283 98:908 99:37 101:214 103:359 106:70 107:66 108:54 109:1059 110:667 111:793 112:327 113:480 114:602 115:699 116:879 117:715 118:898 119:1240 120:339 121:693 122:1565 123:1032 124:1363 125:1385 128:256 129:178 130:166 131:587 132:121 133:21 134:218 135:54 136:213 137:139 138:289 139:120 140:488 141:294 142:389 143:428 144:493 145:63 146:473 147:215 148:635 149:258 150:164 151:192 152:448 153:178 154:7 155:387 156:207 157:359 158:151 159:476 160:321 161:214 162:339 163:175 164:509 165:364 166:536 167:435 168:745 169:145 170:872 171:85 172:4 173:1691 174:669 175:423 176:272 177:322 178:1054 180:1115 181:36 182:635 183:215 184:371 185:1 186:1284 187:666 188:928 189:850 190:5096 192:5905 193:5023 194:3544 195:3093 196:1235 197:169 198:3631 199:4152 200:5519 201:1655 202:8566 203:8477 204:4290 205:2366 206:2672 207:2821 208:4049 209:3594 210:2681 211:1454 212:2048 213:1768 214:796 215:90 216:4985 217:1617 218:561 219:336 220:1241 221:515 222:344 223:280 End of report