Routing Table Report 04:00 +10GMT Tue 18 Oct, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 378248 Prefixes after maximum aggregation: 169498 Deaggregation factor: 2.23 Unique aggregates announced to Internet: 185128 Total ASes present in the Internet Routing Table: 39095 Prefixes per ASN: 9.68 Origin-only ASes present in the Internet Routing Table: 32337 Origin ASes announcing only one prefix: 15499 Transit ASes present in the Internet Routing Table: 5240 Transit-only ASes present in the Internet Routing Table: 137 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: 1457 Unregistered ASNs in the Routing Table: 803 Number of 32-bit ASNs allocated by the RIRs: 1866 Number of 32-bit ASNs visible in the Routing Table: 1518 Prefixes from 32-bit ASNs in the Routing Table: 3477 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 89 Number of addresses announced to Internet: 2484356320 Equivalent to 148 /8s, 20 /16s and 68 /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: 159086 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 94609 Total APNIC prefixes after maximum aggregation: 30905 APNIC Deaggregation factor: 3.06 Prefixes being announced from the APNIC address blocks: 91082 Unique aggregates announced from the APNIC address blocks: 37980 APNIC Region origin ASes present in the Internet Routing Table: 4585 APNIC Prefixes per ASN: 19.87 APNIC Region origin ASes announcing only one prefix: 1260 APNIC Region transit ASes present in the Internet Routing Table: 709 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: 628726624 Equivalent to 37 /8s, 121 /16s and 155 /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: 145732 Total ARIN prefixes after maximum aggregation: 74280 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 117719 Unique aggregates announced from the ARIN address blocks: 47820 ARIN Region origin ASes present in the Internet Routing Table: 14730 ARIN Prefixes per ASN: 7.99 ARIN Region origin ASes announcing only one prefix: 5665 ARIN Region transit ASes present in the Internet Routing Table: 1560 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: 804676608 Equivalent to 47 /8s, 246 /16s and 100 /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: 90711 Total RIPE prefixes after maximum aggregation: 50620 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 83403 Unique aggregates announced from the RIPE address blocks: 54163 RIPE Region origin ASes present in the Internet Routing Table: 16049 RIPE Prefixes per ASN: 5.20 RIPE Region origin ASes announcing only one prefix: 7972 RIPE Region transit ASes present in the Internet Routing Table: 2515 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: 1067 Number of RIPE addresses announced to Internet: 490712192 Equivalent to 29 /8s, 63 /16s and 172 /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: 34997 Total LACNIC prefixes after maximum aggregation: 7855 LACNIC Deaggregation factor: 4.46 Prefixes being announced from the LACNIC address blocks: 34392 Unique aggregates announced from the LACNIC address blocks: 17894 LACNIC Region origin ASes present in the Internet Routing Table: 1540 LACNIC Prefixes per ASN: 22.33 LACNIC Region origin ASes announcing only one prefix: 447 LACNIC Region transit ASes present in the Internet Routing Table: 281 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: 342 Number of LACNIC addresses announced to Internet: 91006592 Equivalent to 5 /8s, 108 /16s and 166 /24s Percentage of available LACNIC address space announced: 60.3 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: 8550 Total AfriNIC prefixes after maximum aggregation: 2019 AfriNIC Deaggregation factor: 4.23 Prefixes being announced from the AfriNIC address blocks: 6616 Unique aggregates announced from the AfriNIC address blocks: 1994 AfriNIC Region origin ASes present in the Internet Routing Table: 490 AfriNIC Prefixes per ASN: 13.50 AfriNIC Region origin ASes announcing only one prefix: 155 AfriNIC Region transit ASes present in the Internet Routing Table: 107 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: 27845632 Equivalent to 1 /8s, 168 /16s and 228 /24s Percentage of available AfriNIC address space announced: 41.5 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 2497 11079 958 Korea Telecom (KIX) 17974 1945 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1612 303 86 TPG Internet Pty Ltd 4755 1539 639 173 TATA Communications formerly 7552 1388 1064 7 Vietel Corporation 9829 1162 989 28 BSNL National Internet Backbo 9583 1087 80 503 Sify Limited 4808 1080 2100 308 CNCGROUP IP network: China169 24560 988 336 234 Bharti Airtel Ltd., Telemedia 18101 953 165 143 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 2150 1016 197 Windstream Communications Inc 18566 2098 383 177 Covad Communications 1785 1837 680 121 PaeTec Communications, Inc. 4323 1630 1083 391 Time Warner Telecom 20115 1592 1541 635 Charter Communications 22773 1462 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1391 251 673 Mediacom Communications Corp 7018 1342 7079 849 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 1505 352 13 Corbina telecom 6830 653 1927 415 UPC Distribution Services 34984 582 108 180 BILISIM TELEKOM 20940 546 183 420 Akamai Technologies European 3320 500 8169 382 Deutsche Telekom AG 12479 482 593 7 Uni2 Autonomous System 3292 481 2080 407 TDC Tele Danmark 8866 458 133 26 Bulgarian Telecommunication C 29049 423 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 1423 2861 350 UniNet S.A. de C.V. 28573 1378 1031 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 579 72 83 Telconet S.A 6503 574 450 69 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 538 233 96 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 801 146 36 LINKdotNET AS number 8452 653 446 12 TEDATA 15475 443 74 8 Nile Online 36992 300 415 21 Etisalat MISR 3741 281 939 232 The Internet Solution 6713 242 519 14 Itissalat Al-MAGHRIB 15706 240 32 6 Sudatel Internet Exchange Aut 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 2497 11079 958 Korea Telecom (KIX) 7029 2150 1016 197 Windstream Communications Inc 18566 2098 383 177 Covad Communications 17974 1945 519 33 PT TELEKOMUNIKASI INDONESIA 1785 1837 680 121 PaeTec Communications, Inc. 10620 1681 310 155 TVCABLE BOGOTA 4323 1630 1083 391 Time Warner Telecom 7545 1612 303 86 TPG Internet Pty Ltd 20115 1592 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 2150 1953 Windstream Communications Inc 18566 2098 1921 Covad Communications 17974 1945 1912 PT TELEKOMUNIKASI INDONESIA 1785 1837 1716 PaeTec Communications, Inc. 4766 2497 1539 Korea Telecom (KIX) 10620 1681 1526 TVCABLE BOGOTA 7545 1612 1526 TPG Internet Pty Ltd 8402 1505 1492 Corbina telecom 7552 1388 1381 Vietel Corporation 4755 1539 1366 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 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 /15:1426 /16:11999 /17:6032 /18:10050 /19:19942 /20:27280 /21:27347 /22:36998 /23:35111 /24:197005 /25:1151 /26:1339 /27:745 /28:168 /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 1837 2150 Windstream Communications Inc 10620 1576 1681 TVCABLE BOGOTA 8402 1482 1505 Corbina telecom 30036 1353 1391 Mediacom Communications Corp 11492 1117 1155 Cable One 1785 1057 1837 PaeTec Communications, Inc. 7011 1048 1166 Citizens Utilities 22773 950 1462 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:399 2:484 4:15 5:1 6:3 8:359 12:1953 13:1 14:539 15:11 16:3 17:7 20:9 23:58 24:1686 27:964 31:596 32:65 33:4 34:2 36:4 38:752 40:109 41:2665 42:52 44:3 46:995 47:3 49:299 50:444 52:13 55:5 56:2 57:37 58:884 59:491 60:363 61:1183 62:1090 63:1929 64:4108 65:2308 66:4278 67:1966 68:1157 69:3228 70:887 71:377 72:1864 74:2583 75:381 76:346 77:884 78:868 79:474 80:1124 81:825 82:500 83:529 84:637 85:1116 86:400 87:890 88:354 89:1595 90:269 91:4201 92:528 93:1525 94:1299 95:1069 96:437 97:283 98:908 99:37 101:216 103:372 106:70 107:69 108:68 109:1055 110:668 111:788 112:327 113:482 114:607 115:698 116:881 117:714 118:900 119:1258 120:339 121:692 122:1568 123:1020 124:1363 125:1386 128:248 129:180 130:166 131:585 132:145 133:21 134:217 135:54 136:212 137:139 138:290 139:120 140:487 141:295 142:382 143:428 144:495 145:63 146:473 147:216 148:641 149:258 150:167 151:192 152:448 153:178 154:7 155:386 156:206 157:359 158:152 159:476 160:324 161:214 162:339 163:174 164:509 165:371 166:536 167:436 168:737 169:145 170:873 171:86 172:4 173:1697 174:672 175:424 176:281 177:323 178:1057 180:1109 181:36 182:636 183:218 184:373 185:1 186:1248 187:692 188:930 189:868 190:5101 192:5906 193:5029 194:3557 195:3104 196:1255 197:167 198:3629 199:4161 200:5507 201:1658 202:8566 203:8485 204:4291 205:2372 206:2677 207:2824 208:4064 209:3625 210:2691 211:1455 212:2067 213:1767 214:788 215:90 216:5021 217:1614 218:562 219:335 220:1241 221:515 222:346 223:278 End of report