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 04 Apr, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 284279 Prefixes after maximum aggregation: 134697 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 139818 Total ASes present in the Internet Routing Table: 30933 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 26928 Origin ASes announcing only one prefix: 13076 Transit ASes present in the Internet Routing Table: 4005 Transit-only ASes present in the Internet Routing Table: 98 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 28 Max AS path prepend of ASN (12445) 18 Prefixes from unregistered ASNs in the Routing Table: 470 Unregistered ASNs in the Routing Table: 159 Number of 32-bit ASNs allocated by the RIRs: 138 Prefixes from 32-bit ASNs in the Routing Table: 19 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 226 Number of addresses announced to Internet: 2024619360 Equivalent to 120 /8s, 173 /16s and 61 /24s Percentage of available address space announced: 54.6 Percentage of allocated address space announced: 63.9 Percentage of available address space allocated: 85.5 Percentage of address space in use by end-sites: 76.2 Total number of prefixes smaller than registry allocations: 139764 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 65840 Total APNIC prefixes after maximum aggregation: 23485 APNIC Deaggregation factor: 2.80 Prefixes being announced from the APNIC address blocks: 62608 Unique aggregates announced from the APNIC address blocks: 28689 APNIC Region origin ASes present in the Internet Routing Table: 3591 APNIC Prefixes per ASN: 17.43 APNIC Region origin ASes announcing only one prefix: 964 APNIC Region transit ASes present in the Internet Routing Table: 554 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 409929248 Equivalent to 24 /8s, 111 /16s and 6 /24s Percentage of available APNIC address space announced: 81.4 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: 124467 Total ARIN prefixes after maximum aggregation: 65792 ARIN Deaggregation factor: 1.89 Prefixes being announced from the ARIN address blocks: 93786 Unique aggregates announced from the ARIN address blocks: 36438 ARIN Region origin ASes present in the Internet Routing Table: 12879 ARIN Prefixes per ASN: 7.28 ARIN Region origin ASes announcing only one prefix: 4954 ARIN Region transit ASes present in the Internet Routing Table: 1241 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 20 Number of ARIN addresses announced to Internet: 420976128 Equivalent to 25 /8s, 23 /16s and 150 /24s Percentage of available ARIN address space announced: 80.9 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 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: 65066 Total RIPE prefixes after maximum aggregation: 37870 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 59653 Unique aggregates announced from the RIPE address blocks: 39647 RIPE Region origin ASes present in the Internet Routing Table: 12843 RIPE Prefixes per ASN: 4.64 RIPE Region origin ASes announcing only one prefix: 6726 RIPE Region transit ASes present in the Internet Routing Table: 1932 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 26 Number of RIPE addresses announced to Internet: 392241952 Equivalent to 23 /8s, 97 /16s and 35 /24s Percentage of available RIPE address space announced: 83.5 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: 23658 Total LACNIC prefixes after maximum aggregation: 5819 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 21871 Unique aggregates announced from the LACNIC address blocks: 11884 LACNIC Region origin ASes present in the Internet Routing Table: 1087 LACNIC Prefixes per ASN: 20.12 LACNIC Region origin ASes announcing only one prefix: 345 LACNIC Region transit ASes present in the Internet Routing Table: 176 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 28 Number of LACNIC addresses announced to Internet: 62027008 Equivalent to 3 /8s, 178 /16s and 117 /24s Percentage of available LACNIC address space announced: 61.6 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: 4817 Total AfriNIC prefixes after maximum aggregation: 1382 AfriNIC Deaggregation factor: 3.49 Prefixes being announced from the AfriNIC address blocks: 4505 Unique aggregates announced from the AfriNIC address blocks: 1345 AfriNIC Region origin ASes present in the Internet Routing Table: 289 AfriNIC Prefixes per ASN: 15.59 AfriNIC Region origin ASes announcing only one prefix: 87 AfriNIC Region transit ASes present in the Internet Routing Table: 55 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 10176000 Equivalent to 0 /8s, 155 /16s and 70 /24s Percentage of available AfriNIC address space announced: 30.3 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 1687 6929 394 Korea Telecom (KIX) 17488 1538 121 98 Hathway IP Over Cable Interne 4755 1179 405 179 TATA Communications formerly 9583 1086 86 534 Sify Limited 4134 918 16382 367 CHINANET-BACKBONE 7545 784 164 106 TPG Internet Pty Ltd 18101 754 206 30 Reliance Infocom Ltd Internet 9498 686 297 49 BHARTI BT INTERNET LTD. 24560 680 228 176 Bharti Airtel Ltd. 9829 637 491 20 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 4315 3669 346 bellsouth.net, inc. 209 2656 4151 623 Qwest 4323 1816 1049 376 Time Warner Telecom 1785 1742 717 139 PaeTec Communications, Inc. 20115 1592 1426 725 Charter Communications 7018 1442 5895 1015 AT&T WorldNet Services 6478 1308 296 501 AT&T Worldnet Services 2386 1263 683 905 AT&T Data Communications Serv 11492 1202 192 11 Cable One 3356 1189 10978 450 Level 3 Communications, LLC 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 1232 188 7 TEDATA 3292 450 1764 389 TDC Tele Danmark 30890 435 86 194 SC Kappa Invexim SRL 12479 409 578 6 Uni2 Autonomous System 3320 343 7081 294 Deutsche Telekom AG 3215 340 3025 108 France Telecom Transpac 3301 340 1685 305 TeliaNet Sweden 8866 337 109 22 Bulgarian Telecommunication C 29049 322 26 3 AzerSat LLC. 8551 313 288 40 Bezeq International 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 1445 2832 235 UniNet S.A. de C.V. 10620 848 193 102 TVCABLE BOGOTA 22047 607 302 14 VTR PUNTO NET S.A. 16814 594 31 10 NSS, S.A. 7303 519 264 74 Telecom Argentina Stet-France 11830 519 294 42 Instituto Costarricense de El 6471 443 96 31 ENTEL CHILE S.A. 11172 411 102 72 Servicios Alestra S.A de C.V 7738 397 794 28 Telecomunicacoes da Bahia S.A 28573 385 526 25 NET Servicos de Comunicao 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 845 76 34 LINKdotNET AS number 20858 293 34 3 This AS will be used to conne 3741 272 858 232 The Internet Solution 2018 242 215 142 Tertiary Education Network 6713 159 150 15 Itissalat Al-MAGHRIB 33783 148 10 8 EEPAD TISP TELECOM & INTERNET 29571 137 15 8 Ci Telecom Autonomous system 5536 123 8 9 Internet Egypt Network 5713 113 507 65 Telkom SA Ltd 33776 109 6 3 Starcomms Nigeria Limited 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 4315 3669 346 bellsouth.net, inc. 209 2656 4151 623 Qwest 4323 1816 1049 376 Time Warner Telecom 1785 1742 717 139 PaeTec Communications, Inc. 4766 1687 6929 394 Korea Telecom (KIX) 20115 1592 1426 725 Charter Communications 17488 1538 121 98 Hathway IP Over Cable Interne 8151 1445 2832 235 UniNet S.A. de C.V. 7018 1442 5895 1015 AT&T WorldNet Services 6478 1308 296 501 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 2656 2033 Qwest 1785 1742 1603 PaeTec Communications, Inc. 4323 1816 1440 Time Warner Telecom 17488 1538 1440 Hathway IP Over Cable Interne 4766 1687 1293 Korea Telecom (KIX) 8452 1232 1225 TEDATA 8151 1445 1210 UniNet S.A. de C.V. 11492 1202 1191 Cable One 18566 1061 1051 Covad Communications 4755 1179 1000 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 24.75.116.0/22 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 63.140.213.0/24 22555 Universal Talkware Corporatio 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 /11:56 /12:163 /13:333 /14:590 /15:1147 /16:10411 /17:4658 /18:8021 /19:17048 /20:20269 /21:19962 /22:25500 /23:25315 /24:148796 /25:645 /26:792 /27:352 /28:119 /29:37 /30:9 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2805 4315 bellsouth.net, inc. 4766 1390 1687 Korea Telecom (KIX) 209 1358 2656 Qwest 17488 1305 1538 Hathway IP Over Cable Interne 8452 1211 1232 TEDATA 11492 1155 1202 Cable One 1785 1150 1742 PaeTec Communications, Inc. 18566 1042 1061 Covad Communications 2386 965 1263 AT&T Data Communications Serv 4323 942 1816 Time Warner Telecom Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:13 8:177 12:2207 13:3 15:19 16:3 17:4 20:35 24:1100 32:51 38:547 40:96 41:1974 43:1 44:2 47:22 52:3 55:2 56:3 57:25 58:533 59:621 60:460 61:1109 62:1075 63:2032 64:3641 65:2412 66:3605 67:1494 68:696 69:2554 70:525 71:140 72:1653 73:2 74:1474 75:171 76:310 77:836 78:547 79:311 80:969 81:824 82:527 83:412 84:613 85:1020 86:397 87:633 88:355 89:1442 90:44 91:2113 92:339 93:1129 94:1222 95:822 96:106 97:184 98:245 99:17 109:1 110:36 112:92 113:92 114:223 115:223 116:1140 117:490 118:286 119:665 120:144 121:707 122:1010 123:537 124:954 125:1304 128:222 129:227 130:129 131:415 132:74 133:9 134:188 135:39 136:241 137:153 138:147 139:77 140:421 141:101 142:391 143:327 144:332 145:44 146:373 147:150 148:519 149:235 150:143 151:200 152:150 153:137 154:11 155:269 156:170 157:299 158:129 159:273 160:280 161:134 162:275 163:149 164:478 165:533 166:277 167:361 168:680 169:162 170:476 171:38 172:10 173:260 174:163 178:1 186:8 187:59 188:9 189:325 190:2734 192:5805 193:4227 194:3324 195:2661 196:1057 198:3735 199:3319 200:5488 201:1361 202:7851 203:8093 204:3792 205:2160 206:2384 207:2804 208:3900 209:3437 210:2641 211:1095 212:1528 213:1717 214:69 215:26 216:4539 217:1259 218:361 219:414 220:1206 221:451 222:280 End of report