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 18 Sep, 2010 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 331135 Prefixes after maximum aggregation: 152252 Deaggregation factor: 2.17 Unique aggregates announced to Internet: 162663 Total ASes present in the Internet Routing Table: 34823 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 30197 Origin ASes announcing only one prefix: 14661 Transit ASes present in the Internet Routing Table: 4626 Transit-only ASes present in the Internet Routing Table: 101 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 Max AS path prepend of ASN (41664) 21 Prefixes from unregistered ASNs in the Routing Table: 2711 Unregistered ASNs in the Routing Table: 1247 Number of 32-bit ASNs allocated by the RIRs: 777 Prefixes from 32-bit ASNs in the Routing Table: 1013 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 195 Number of addresses announced to Internet: 2269815744 Equivalent to 135 /8s, 74 /16s and 163 /24s Percentage of available address space announced: 61.2 Percentage of allocated address space announced: 65.4 Percentage of available address space allocated: 93.7 Percentage of address space in use by end-sites: 84.8 Total number of prefixes smaller than registry allocations: 156540 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 80501 Total APNIC prefixes after maximum aggregation: 27663 APNIC Deaggregation factor: 2.91 Prefixes being announced from the APNIC address blocks: 77482 Unique aggregates announced from the APNIC address blocks: 34148 APNIC Region origin ASes present in the Internet Routing Table: 4193 APNIC Prefixes per ASN: 18.48 APNIC Region origin ASes announcing only one prefix: 1170 APNIC Region transit ASes present in the Internet Routing Table: 649 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 548634656 Equivalent to 32 /8s, 179 /16s and 128 /24s Percentage of available APNIC address space announced: 77.9 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: 135830 Total ARIN prefixes after maximum aggregation: 70008 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 108483 Unique aggregates announced from the ARIN address blocks: 42882 ARIN Region origin ASes present in the Internet Routing Table: 13915 ARIN Prefixes per ASN: 7.80 ARIN Region origin ASes announcing only one prefix: 5331 ARIN Region transit ASes present in the Internet Routing Table: 1382 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 733654048 Equivalent to 43 /8s, 186 /16s and 172 /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: 76004 Total RIPE prefixes after maximum aggregation: 44137 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 69440 Unique aggregates announced from the RIPE address blocks: 45491 RIPE Region origin ASes present in the Internet Routing Table: 14793 RIPE Prefixes per ASN: 4.69 RIPE Region origin ASes announcing only one prefix: 7615 RIPE Region transit ASes present in the Internet Routing Table: 2223 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 24 Number of RIPE addresses announced to Internet: 439134848 Equivalent to 26 /8s, 44 /16s and 170 /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: 30120 Total LACNIC prefixes after maximum aggregation: 7214 LACNIC Deaggregation factor: 4.18 Prefixes being announced from the LACNIC address blocks: 28673 Unique aggregates announced from the LACNIC address blocks: 15258 LACNIC Region origin ASes present in the Internet Routing Table: 1350 LACNIC Prefixes per ASN: 21.24 LACNIC Region origin ASes announcing only one prefix: 421 LACNIC Region transit ASes present in the Internet Routing Table: 235 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 75506304 Equivalent to 4 /8s, 128 /16s and 34 /24s Percentage of available LACNIC address space announced: 56.3 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: 7414 Total AfriNIC prefixes after maximum aggregation: 1892 AfriNIC Deaggregation factor: 3.92 Prefixes being announced from the AfriNIC address blocks: 5721 Unique aggregates announced from the AfriNIC address blocks: 1674 AfriNIC Region origin ASes present in the Internet Routing Table: 405 AfriNIC Prefixes per ASN: 14.13 AfriNIC Region origin ASes announcing only one prefix: 124 AfriNIC Region transit ASes present in the Internet Routing Table: 90 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 20253184 Equivalent to 1 /8s, 53 /16s and 10 /24s Percentage of available AfriNIC address space announced: 60.4 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 1860 9436 501 Korea Telecom (KIX) 7545 1369 298 84 TPG Internet Pty Ltd 4755 1346 370 160 TATA Communications formerly 17488 1346 153 123 Hathway IP Over Cable Interne 17974 1234 298 70 PT TELEKOMUNIKASI INDONESIA 24560 1029 304 177 Bharti Airtel Ltd., Telemedia 9583 1016 76 490 Sify Limited 4808 931 1713 260 CNCGROUP IP network: China169 18101 879 99 131 Reliance Infocom Ltd Internet 9829 821 691 36 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 3792 3667 278 bellsouth.net, inc. 4323 2702 1107 390 Time Warner Telecom 19262 1816 4668 286 Verizon Global Networks 1785 1793 698 131 PaeTec Communications, Inc. 20115 1494 1529 653 Charter Communications 7018 1459 5732 946 AT&T WorldNet Services 6478 1341 274 132 AT&T Worldnet Services 2386 1293 554 911 AT&T Data Communications Serv 11492 1194 228 89 Cable One 22773 1193 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 448 2026 389 TDC Tele Danmark 30890 439 99 209 Evolva Telecom 702 409 1869 323 UUNET - Commercial IP service 8866 403 117 19 Bulgarian Telecommunication C 8551 402 353 46 Bezeq International 3301 376 1672 331 TeliaNet Sweden 34984 374 90 185 BILISIM TELEKOM 3320 371 7328 323 Deutsche Telekom AG 12479 360 576 5 Uni2 Autonomous System 31148 338 18 79 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 1381 2655 343 UniNet S.A. de C.V. 10620 1319 247 148 TVCABLE BOGOTA 28573 1095 866 109 NET Servicos de Comunicao S.A 7303 794 408 101 Telecom Argentina Stet-France 6503 772 193 277 AVANTEL, S.A. 14420 578 37 74 CORPORACION NACIONAL DE TELEC 22047 559 310 15 VTR PUNTO NET S.A. 3816 480 209 94 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 1152 445 10 TEDATA 24863 728 147 39 LINKdotNET AS number 36992 661 279 176 Etisalat MISR 3741 266 906 224 The Internet Solution 6713 203 199 12 Itissalat Al-MAGHRIB 29571 200 19 11 Ci Telecom Autonomous system 2018 197 277 64 Tertiary Education Network 33776 196 12 14 Starcomms Nigeria Limited 24835 165 78 9 RAYA Telecom - Egypt 16637 155 440 93 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 3792 3667 278 bellsouth.net, inc. 4323 2702 1107 390 Time Warner Telecom 4766 1860 9436 501 Korea Telecom (KIX) 19262 1816 4668 286 Verizon Global Networks 1785 1793 698 131 PaeTec Communications, Inc. 20115 1494 1529 653 Charter Communications 7018 1459 5732 946 AT&T WorldNet Services 8151 1381 2655 343 UniNet S.A. de C.V. 7545 1369 298 84 TPG Internet Pty Ltd 4755 1346 370 160 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 2702 2312 Time Warner Telecom 1785 1793 1662 PaeTec Communications, Inc. 19262 1816 1530 Verizon Global Networks 4766 1860 1359 Korea Telecom (KIX) 7545 1369 1285 TPG Internet Pty Ltd 17488 1346 1223 Hathway IP Over Cable Interne 6478 1341 1209 AT&T Worldnet Services 4755 1346 1186 TATA Communications formerly 10620 1319 1171 TVCABLE BOGOTA 17974 1234 1164 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 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 32249 UNALLOCATED 8.225.178.0/24 3356 Level 3 Communicatio 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<< 41.223.196.0/24 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 46.45.128.0/21 42926 RIPE Network Coordination Cen 46.45.136.0/21 42926 RIPE Network Coordination Cen 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 /8:19 /9:10 /10:25 /11:67 /12:201 /13:419 /14:730 /15:1320 /16:11275 /17:5437 /18:9283 /19:18511 /20:23458 /21:23639 /22:30953 /23:30252 /24:172587 /25:1015 /26:1124 /27:583 /28:167 /29:47 /30:6 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2418 3792 bellsouth.net, inc. 4766 1477 1860 Korea Telecom (KIX) 4323 1367 2702 Time Warner Telecom 1785 1256 1793 PaeTec Communications, Inc. 10620 1207 1319 TVCABLE BOGOTA 11492 1096 1194 Cable One 17488 1087 1346 Hathway IP Over Cable Interne 18566 1068 1087 Covad Communications 8452 1044 1152 TEDATA 24560 930 1029 Bharti Airtel Ltd., Telemedia Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:71 2:11 4:13 8:307 12:2012 13:8 14:4 15:20 16:3 17:9 20:8 24:1393 27:339 31:1 32:61 33:12 38:701 40:97 41:2526 44:3 46:72 47:13 49:1 52:12 55:6 56:2 57:29 58:827 59:497 60:474 61:1081 62:1020 63:1968 64:3722 65:2300 66:3998 67:1862 68:1136 69:2797 70:739 71:372 72:1948 73:2 74:2326 75:284 76:329 77:906 78:647 79:414 80:1011 81:781 82:496 83:445 84:680 85:1036 86:432 87:682 88:324 89:1562 90:96 91:3044 92:426 93:992 94:1419 95:705 96:380 97:219 98:623 99:34 101:1 108:64 109:667 110:502 111:580 112:298 113:291 114:453 115:587 116:1098 117:658 118:510 119:869 120:137 121:703 122:1541 123:918 124:1221 125:1242 128:226 129:157 130:170 131:541 132:258 133:20 134:201 135:46 136:223 137:138 138:273 139:109 140:479 141:197 142:345 143:353 144:475 145:54 146:428 147:169 148:630 149:294 150:152 151:233 152:288 153:170 154:3 155:365 156:169 157:335 158:112 159:359 160:313 161:190 162:268 163:167 164:418 165:370 166:468 167:413 168:666 169:156 170:727 171:61 172:2 173:1078 174:500 175:169 176:1 177:1 178:483 180:648 181:1 182:211 183:254 184:156 186:644 187:479 188:809 189:811 190:4139 192:5775 193:4736 194:3435 195:2798 196:1188 198:3557 199:3579 200:5398 201:1578 202:8098 203:8290 204:3996 205:2383 206:2537 207:3065 208:3868 209:3469 210:2560 211:1307 212:1742 213:1684 214:673 215:66 216:4753 217:1573 218:473 219:398 220:1176 221:386 222:316 223:45 End of report