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.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 25 Sep, 2010 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 331883 Prefixes after maximum aggregation: 152525 Deaggregation factor: 2.18 Unique aggregates announced to Internet: 161648 Total ASes present in the Internet Routing Table: 34863 Prefixes per ASN: 9.52 Origin-only ASes present in the Internet Routing Table: 30227 Origin ASes announcing only one prefix: 14677 Transit ASes present in the Internet Routing Table: 4636 Transit-only ASes present in the Internet Routing Table: 101 Average AS path length visible in the Internet Routing Table: 3.7 Max AS path length visible: 24 Max AS path prepend of ASN (41664) 21 Prefixes from unregistered ASNs in the Routing Table: 3160 Unregistered ASNs in the Routing Table: 1399 Number of 32-bit ASNs allocated by the RIRs: 794 Prefixes from 32-bit ASNs in the Routing Table: 1017 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 228 Number of addresses announced to Internet: 2273798848 Equivalent to 135 /8s, 135 /16s and 106 /24s Percentage of available address space announced: 61.3 Percentage of allocated address space announced: 65.5 Percentage of available address space allocated: 93.7 Percentage of address space in use by end-sites: 84.9 Total number of prefixes smaller than registry allocations: 156837 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 80968 Total APNIC prefixes after maximum aggregation: 27719 APNIC Deaggregation factor: 2.92 Prefixes being announced from the APNIC address blocks: 77853 Unique aggregates announced from the APNIC address blocks: 32742 APNIC Region origin ASes present in the Internet Routing Table: 4196 APNIC Prefixes per ASN: 18.55 APNIC Region origin ASes announcing only one prefix: 1167 APNIC Region transit ASes present in the Internet Routing Table: 648 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 551901216 Equivalent to 32 /8s, 229 /16s and 88 /24s Percentage of available APNIC address space announced: 78.3 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, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 135903 Total ARIN prefixes after maximum aggregation: 70118 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 108637 Unique aggregates announced from the ARIN address blocks: 43091 ARIN Region origin ASes present in the Internet Routing Table: 13925 ARIN Prefixes per ASN: 7.80 ARIN Region origin ASes announcing only one prefix: 5334 ARIN Region transit ASes present in the Internet Routing Table: 1380 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 734124576 Equivalent to 43 /8s, 193 /16s and 218 /24s Percentage of available ARIN address space announced: 62.5 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, 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, 54/8, 55/8, 56/8, 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, 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: 76059 Total RIPE prefixes after maximum aggregation: 44153 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 69455 Unique aggregates announced from the RIPE address blocks: 45623 RIPE Region origin ASes present in the Internet Routing Table: 14816 RIPE Prefixes per ASN: 4.69 RIPE Region origin ASes announcing only one prefix: 7631 RIPE Region transit ASes present in the Internet Routing Table: 2237 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 24 Number of RIPE addresses announced to Internet: 439384960 Equivalent to 26 /8s, 48 /16s and 123 /24s Percentage of available RIPE address space announced: 77.0 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, 196608-197631 RIPE Address Blocks 2/8, 25/8, 31/8, 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 30249 Total LACNIC prefixes after maximum aggregation: 7285 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 28745 Unique aggregates announced from the LACNIC address blocks: 15259 LACNIC Region origin ASes present in the Internet Routing Table: 1354 LACNIC Prefixes per ASN: 21.23 LACNIC Region origin ASes announcing only one prefix: 422 LACNIC Region transit ASes present in the Internet Routing Table: 232 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 75452800 Equivalent to 4 /8s, 127 /16s and 81 /24s Percentage of available LACNIC address space announced: 56.2 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 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: 7427 Total AfriNIC prefixes after maximum aggregation: 1881 AfriNIC Deaggregation factor: 3.95 Prefixes being announced from the AfriNIC address blocks: 5745 Unique aggregates announced from the AfriNIC address blocks: 1675 AfriNIC Region origin ASes present in the Internet Routing Table: 404 AfriNIC Prefixes per ASN: 14.22 AfriNIC Region origin ASes announcing only one prefix: 123 AfriNIC Region transit ASes present in the Internet Routing Table: 93 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 17 Number of AfriNIC addresses announced to Internet: 20374016 Equivalent to 1 /8s, 54 /16s and 226 /24s Percentage of available AfriNIC address space announced: 60.7 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1859 9436 501 Korea Telecom (KIX) 7545 1395 297 83 TPG Internet Pty Ltd 4755 1348 368 160 TATA Communications formerly 17488 1347 155 124 Hathway IP Over Cable Interne 17974 1240 299 70 PT TELEKOMUNIKASI INDONESIA 24560 1036 304 177 Bharti Airtel Ltd., Telemedia 9583 1015 75 488 Sify Limited 4808 932 1714 261 CNCGROUP IP network: China169 18101 883 100 132 Reliance Infocom Ltd Internet 9829 823 692 33 BSNL National Internet Backbo Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3780 3667 278 bellsouth.net, inc. 4323 2708 1107 388 Time Warner Telecom 19262 1818 4676 286 Verizon Global Networks 1785 1797 698 132 PaeTec Communications, Inc. 20115 1494 1531 652 Charter Communications 7018 1461 5747 947 AT&T WorldNet Services 6478 1352 275 123 AT&T Worldnet Services 2386 1293 554 912 AT&T Data Communications Serv 11492 1207 229 85 Cable One 22773 1195 2858 61 Cox Communications, Inc. Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 3292 447 2026 388 TDC Tele Danmark 30890 442 99 211 Evolva Telecom 8866 405 117 19 Bulgarian Telecommunication C 702 404 1868 318 UUNET - Commercial IP service 8551 402 353 46 Bezeq International 3301 378 1688 333 TeliaNet Sweden 34984 376 90 185 BILISIM TELEKOM 3320 373 7328 323 Deutsche Telekom AG 12479 361 576 5 Uni2 Autonomous System 31148 349 18 75 FreeNet ISP Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1341 2559 367 UniNet S.A. de C.V. 10620 1319 247 148 TVCABLE BOGOTA 28573 1114 869 108 NET Servicos de Comunicao S.A 7303 809 424 103 Telecom Argentina Stet-France 6503 746 223 258 AVANTEL, S.A. 14420 580 38 76 CORPORACION NACIONAL DE TELEC 22047 558 310 15 VTR PUNTO NET S.A. 3816 482 209 95 Empresa Nacional de Telecomun 7738 477 922 30 Telecomunicacoes da Bahia S.A 11172 444 99 76 Servicios Alestra S.A de C.V Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1129 445 10 TEDATA 24863 728 147 39 LINKdotNET AS number 36992 660 279 178 Etisalat MISR 3741 266 906 224 The Internet Solution 6713 203 199 12 Itissalat Al-MAGHRIB 29571 202 19 11 Ci Telecom Autonomous system 2018 197 277 64 Tertiary Education Network 33776 197 12 14 Starcomms Nigeria Limited 24835 165 78 9 RAYA Telecom - Egypt 16637 154 440 92 MTN Network Solutions Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3780 3667 278 bellsouth.net, inc. 4323 2708 1107 388 Time Warner Telecom 4766 1859 9436 501 Korea Telecom (KIX) 19262 1818 4676 286 Verizon Global Networks 1785 1797 698 132 PaeTec Communications, Inc. 20115 1494 1531 652 Charter Communications 7018 1461 5747 947 AT&T WorldNet Services 7545 1395 297 83 TPG Internet Pty Ltd 6478 1352 275 123 AT&T Worldnet Services 4755 1348 368 160 TATA Communications formerly Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2708 2320 Time Warner Telecom 1785 1797 1665 PaeTec Communications, Inc. 19262 1818 1532 Verizon Global Networks 4766 1859 1358 Korea Telecom (KIX) 7545 1395 1312 TPG Internet Pty Ltd 6478 1352 1229 AT&T Worldnet Services 17488 1347 1223 Hathway IP Over Cable Interne 4755 1348 1188 TATA Communications formerly 10620 1319 1171 TVCABLE BOGOTA 17974 1240 1170 PT TELEKOMUNIKASI INDONESIA Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 11946 UNALLOCATED 8.12.155.0/24 40913 Quality Technology S 15040 UNALLOCATED 8.12.156.0/24 3356 Level 3 Communicatio 33084 UNALLOCATED 8.15.195.0/24 3356 Level 3 Communicatio 18826 UNALLOCATED 8.17.208.0/20 2828 XO Communications 16734 UNALLOCATED 8.18.204.0/24 26914 Global Netoptex, Inc 53562 UNALLOCATED 8.19.94.0/24 3356 Level 3 Communicatio 22015 UNALLOCATED 8.22.137.0/24 14989 Broadview Networks 46856 UNALLOCATED 8.22.184.0/22 3356 Level 3 Communicatio 21893 UNALLOCATED 8.26.33.0/24 3356 Level 3 Communicatio 26169 UNALLOCATED 8.225.177.0/24 20225 TelJet Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 31.0.0.0/16 12654 RIPE NCC RIS Project 31.1.0.0/21 12654 RIPE NCC RIS Project 31.1.24.0/24 12654 RIPE NCC RIS Project 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.196.0/24 36990 Alkan Telecom Ltd 41.223.197.0/24 36990 Alkan Telecom Ltd 41.223.198.0/24 36990 Alkan Telecom Ltd 41.223.199.0/24 36990 Alkan Telecom Ltd 46.20.80.0/20 5602 KPNQwest Italia S.p.a Complete listing at http://thyme.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 /9:10 /10:25 /11:67 /12:202 /13:420 /14:730 /15:1318 /16:11289 /17:5447 /18:9267 /19:18479 /20:23532 /21:23780 /22:31095 /23:30369 /24:172749 /25:1048 /26:1163 /27:646 /28:170 /29:47 /30:3 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2407 3780 bellsouth.net, inc. 4766 1476 1859 Korea Telecom (KIX) 4323 1367 2708 Time Warner Telecom 1785 1259 1797 PaeTec Communications, Inc. 10620 1207 1319 TVCABLE BOGOTA 11492 1099 1207 Cable One 17488 1087 1347 Hathway IP Over Cable Interne 18566 1068 1087 Covad Communications 8452 1029 1129 TEDATA 24560 937 1036 Bharti Airtel Ltd., Telemedia Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:72 2:13 4:13 8:310 12:2012 13:8 14:9 15:20 16:3 17:9 20:8 24:1365 27:345 31:1 32:61 33:12 38:702 40:97 41:2519 44:3 46:97 47:10 49:4 52:12 55:5 56:2 57:30 58:867 59:505 60:477 61:1080 62:1049 63:1964 64:3715 65:2305 66:4025 67:1841 68:1136 69:2800 70:739 71:374 72:1959 73:2 74:2312 75:285 76:318 77:873 78:645 79:418 80:1021 81:798 82:498 83:454 84:680 85:1035 86:431 87:688 88:314 89:1574 90:98 91:3061 92:429 93:995 94:1167 95:703 96:397 97:219 98:634 99:32 101:3 108:64 109:711 110:430 111:579 112:297 113:284 114:452 115:594 116:1102 117:659 118:526 119:881 120:158 121:709 122:1541 123:923 124:1222 125:1241 128:226 129:157 130:168 131:558 132:259 133:19 134:207 135:46 136:223 137:138 138:274 139:109 140:478 141:197 142:346 143:351 144:479 145:54 146:428 147:171 148:629 149:305 150:152 151:233 152:288 153:171 154:3 155:366 156:170 157:335 158:111 159:362 160:315 161:189 162:268 163:165 164:414 165:368 166:468 167:409 168:677 169:156 170:724 171:62 172:2 173:1052 174:531 175:171 176:1 177:1 178:498 180:654 181:1 182:210 183:254 184:160 186:647 187:469 188:819 189:786 190:4156 192:5779 193:4739 194:3430 195:2822 196:1200 198:3552 199:3594 200:5397 201:1583 202:8111 203:8288 204:3995 205:2394 206:2554 207:3054 208:3885 209:3492 210:2582 211:1301 212:1773 213:1684 214:674 215:66 216:4753 217:1579 218:473 219:399 220:1176 221:389 222:314 223:42 End of report