This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. 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 Apr, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 285512 Prefixes after maximum aggregation: 135036 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 140735 Total ASes present in the Internet Routing Table: 30995 Prefixes per ASN: 9.21 Origin-only ASes present in the Internet Routing Table: 26993 Origin ASes announcing only one prefix: 13113 Transit ASes present in the Internet Routing Table: 4002 Transit-only ASes present in the Internet Routing Table: 96 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 33 Max AS path prepend of ASN (43683) 31 Prefixes from unregistered ASNs in the Routing Table: 457 Unregistered ASNs in the Routing Table: 153 Number of 32-bit ASNs allocated by the RIRs: 140 Prefixes from 32-bit ASNs in the Routing Table: 22 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 213 Number of addresses announced to Internet: 2032726080 Equivalent to 121 /8s, 40 /16s and 240 /24s Percentage of available address space announced: 54.8 Percentage of allocated address space announced: 64.1 Percentage of available address space allocated: 85.5 Percentage of address space in use by end-sites: 76.4 Total number of prefixes smaller than registry allocations: 140850 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 66222 Total APNIC prefixes after maximum aggregation: 23572 APNIC Deaggregation factor: 2.81 Prefixes being announced from the APNIC address blocks: 62977 Unique aggregates announced from the APNIC address blocks: 28795 APNIC Region origin ASes present in the Internet Routing Table: 3598 APNIC Prefixes per ASN: 17.50 APNIC Region origin ASes announcing only one prefix: 966 APNIC Region transit ASes present in the Internet Routing Table: 545 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 410974496 Equivalent to 24 /8s, 126 /16s and 249 /24s Percentage of available APNIC address space announced: 81.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 124873 Total ARIN prefixes after maximum aggregation: 65846 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 94104 Unique aggregates announced from the ARIN address blocks: 36841 ARIN Region origin ASes present in the Internet Routing Table: 12932 ARIN Prefixes per ASN: 7.28 ARIN Region origin ASes announcing only one prefix: 4994 ARIN Region transit ASes present in the Internet Routing Table: 1253 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 426730496 Equivalent to 25 /8s, 111 /16s and 100 /24s Percentage of available ARIN address space announced: 82.0 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 ARIN Address Blocks 24/8, 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, 108/8, 173/8, 174/8, 184/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8, RIPE Region Analysis Summary ---------------------------- Prefixes being announced by RIPE Region ASes: 65460 Total RIPE prefixes after maximum aggregation: 38031 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 59789 Unique aggregates announced from the RIPE address blocks: 39893 RIPE Region origin ASes present in the Internet Routing Table: 12842 RIPE Prefixes per ASN: 4.66 RIPE Region origin ASes announcing only one prefix: 6717 RIPE Region transit ASes present in the Internet Routing Table: 1917 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 33 Number of RIPE addresses announced to Internet: 392815392 Equivalent to 23 /8s, 105 /16s and 227 /24s Percentage of available RIPE address space announced: 83.6 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 RIPE Address Blocks 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, 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: 23655 Total LACNIC prefixes after maximum aggregation: 5842 LACNIC Deaggregation factor: 4.05 Prefixes being announced from the LACNIC address blocks: 21807 Unique aggregates announced from the LACNIC address blocks: 11984 LACNIC Region origin ASes present in the Internet Routing Table: 1093 LACNIC Prefixes per ASN: 19.95 LACNIC Region origin ASes announcing only one prefix: 348 LACNIC Region transit ASes present in the Internet Routing Table: 182 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 62475520 Equivalent to 3 /8s, 185 /16s and 77 /24s Percentage of available LACNIC address space announced: 62.1 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247 plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 4879 Total AfriNIC prefixes after maximum aggregation: 1403 AfriNIC Deaggregation factor: 3.48 Prefixes being announced from the AfriNIC address blocks: 4565 Unique aggregates announced from the AfriNIC address blocks: 1365 AfriNIC Region origin ASes present in the Internet Routing Table: 292 AfriNIC Prefixes per ASN: 15.63 AfriNIC Region origin ASes announcing only one prefix: 88 AfriNIC Region transit ASes present in the Internet Routing Table: 58 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 10237184 Equivalent to 0 /8s, 156 /16s and 53 /24s Percentage of available AfriNIC address space announced: 30.5 AfriNIC AS Blocks 36864-37887 & 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 1692 6929 396 Korea Telecom (KIX) 17488 1536 123 97 Hathway IP Over Cable Interne 4755 1181 405 177 TATA Communications formerly 9583 1090 87 539 Sify Limited 4134 894 16580 371 CHINANET-BACKBONE 7545 784 164 106 TPG Internet Pty Ltd 18101 755 217 31 Reliance Infocom Ltd Internet 24560 682 228 174 Bharti Airtel Ltd. 9498 671 296 50 BHARTI BT INTERNET LTD. 9829 640 495 21 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 4303 3669 345 bellsouth.net, inc. 209 2646 4150 621 Qwest 4323 1834 1049 374 Time Warner Telecom 1785 1746 717 139 PaeTec Communications, Inc. 20115 1613 1430 720 Charter Communications 7018 1476 5896 1016 AT&T WorldNet Services 6478 1361 305 468 AT&T Worldnet Services 2386 1247 681 896 AT&T Data Communications Serv 3356 1191 10980 453 Level 3 Communications, LLC 11492 1172 192 11 Cable One 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 8452 1252 188 7 TEDATA 30890 538 88 200 SC Kappa Invexim SRL 3292 451 1764 389 TDC Tele Danmark 12479 405 578 6 Uni2 Autonomous System 3320 343 7081 294 Deutsche Telekom AG 3215 340 3025 108 France Telecom Transpac 3301 339 1669 305 TeliaNet Sweden 8866 336 109 21 Bulgarian Telecommunication C 29049 321 26 3 AzerSat LLC. 35805 319 24 4 United Telecom of Georgia 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 1444 2848 231 UniNet S.A. de C.V. 10620 859 194 101 TVCABLE BOGOTA 22047 611 302 14 VTR PUNTO NET S.A. 7303 525 270 74 Telecom Argentina Stet-France 11830 516 294 34 Instituto Costarricense de El 16814 461 31 10 NSS, S.A. 6471 442 96 31 ENTEL CHILE S.A. 11172 414 102 72 Servicios Alestra S.A de C.V 28573 404 528 27 NET Servicos de Comunicao S.A 7738 397 794 28 Telecomunicacoes da Bahia S.A 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 24863 855 78 35 LINKdotNET AS number 20858 297 34 4 This AS will be used to conne 3741 277 860 237 The Internet Solution 2018 243 215 143 Tertiary Education Network 6713 159 150 15 Itissalat Al-MAGHRIB 33783 151 10 8 EEPAD TISP TELECOM & INTERNET 29571 138 15 9 Ci Telecom Autonomous system 5536 123 8 9 Internet Egypt Network 33776 117 6 3 Starcomms Nigeria Limited 5713 115 507 66 Telkom SA Ltd 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 4303 3669 345 bellsouth.net, inc. 209 2646 4150 621 Qwest 4323 1834 1049 374 Time Warner Telecom 1785 1746 717 139 PaeTec Communications, Inc. 4766 1692 6929 396 Korea Telecom (KIX) 20115 1613 1430 720 Charter Communications 17488 1536 123 97 Hathway IP Over Cable Interne 7018 1476 5896 1016 AT&T WorldNet Services 8151 1444 2848 231 UniNet S.A. de C.V. 6478 1361 305 468 AT&T Worldnet Services Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 2646 2025 Qwest 1785 1746 1607 PaeTec Communications, Inc. 4323 1834 1460 Time Warner Telecom 17488 1536 1439 Hathway IP Over Cable Interne 4766 1692 1296 Korea Telecom (KIX) 8452 1252 1245 TEDATA 8151 1444 1213 UniNet S.A. de C.V. 11492 1172 1161 Cable One 18566 1060 1050 Covad Communications 4755 1181 1004 TATA Communications formerly Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 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 12.39.159.0/24 7018 AT&T WorldNet Servic 32326 UNALLOCATED 12.40.49.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.55.64.0/19 36423 San Juan Cable, LLC 24.75.116.0/22 10796 ServiceCo LLC - Road Runner 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 41.220.16.0/20 8668 TelOne Zimbabwe P/L 41.223.112.0/22 5713 Telkom SA Ltd 41.223.188.0/24 22351 Intelsat 41.223.189.0/24 26452 Local Communications Networks 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.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 /10:20 /11:58 /12:165 /13:335 /14:592 /15:1146 /16:10413 /17:4686 /18:7985 /19:17011 /20:20268 /21:20061 /22:25644 /23:25322 /24:149670 /25:718 /26:868 /27:347 /28:119 /29:37 /30:10 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2804 4303 bellsouth.net, inc. 4766 1394 1692 Korea Telecom (KIX) 209 1351 2646 Qwest 17488 1304 1536 Hathway IP Over Cable Interne 8452 1231 1252 TEDATA 1785 1154 1746 PaeTec Communications, Inc. 11492 1116 1172 Cable One 18566 1041 1060 Covad Communications 4323 956 1834 Time Warner Telecom 2386 947 1247 AT&T Data Communications Serv Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:13 8:192 12:2213 13:3 15:19 16:3 17:4 20:35 24:1076 32:51 38:526 40:97 41:2001 43:1 44:2 47:22 52:3 55:2 56:3 57:25 58:573 59:613 60:459 61:1108 62:1091 63:2024 64:3661 65:2400 66:3590 67:1511 68:715 69:2563 70:531 71:134 72:1647 73:2 74:1487 75:168 76:318 77:841 78:552 79:314 80:971 81:807 82:544 83:415 84:606 85:1030 86:390 87:633 88:358 89:1449 90:44 91:2126 92:341 93:1115 94:1187 95:1026 96:108 97:188 98:470 99:17 109:1 110:58 112:101 113:97 114:217 115:227 116:1156 117:498 118:287 119:670 120:150 121:708 122:1004 123:673 124:960 125:1307 128:224 129:227 130:128 131:416 132:73 133:9 134:184 135:214 136:242 137:149 138:148 139:79 140:425 141:105 142:392 143:330 144:332 145:45 146:372 147:151 148:520 149:237 150:149 151:199 152:151 153:138 154:2 155:271 156:170 157:300 158:127 159:301 160:282 161:134 162:273 163:149 164:481 165:532 166:268 167:363 168:693 169:161 170:473 171:38 172:10 173:270 174:176 178:1 186:8 187:78 188:13 189:334 190:2664 192:5805 193:4216 194:3303 195:2640 196:1068 198:3738 199:3312 200:5428 201:1332 202:7857 203:8161 204:3802 205:2152 206:2415 207:2808 208:3900 209:3389 210:2648 211:1101 212:1517 213:1689 214:71 215:30 216:4554 217:1254 218:361 219:425 220:1207 221:453 222:291 End of report