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 Jul, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 291194 Prefixes after maximum aggregation: 138119 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 144889 Total ASes present in the Internet Routing Table: 31769 Prefixes per ASN: 9.17 Origin-only ASes present in the Internet Routing Table: 27636 Origin ASes announcing only one prefix: 13456 Transit ASes present in the Internet Routing Table: 4133 Transit-only ASes present in the Internet Routing Table: 94 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 39 Max AS path prepend of ASN (22394) 36 Prefixes from unregistered ASNs in the Routing Table: 421 Unregistered ASNs in the Routing Table: 124 Number of 32-bit ASNs allocated by the RIRs: 205 Prefixes from 32-bit ASNs in the Routing Table: 68 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 336 Number of addresses announced to Internet: 2071237376 Equivalent to 123 /8s, 116 /16s and 147 /24s Percentage of available address space announced: 55.9 Percentage of allocated address space announced: 64.7 Percentage of available address space allocated: 86.4 Percentage of address space in use by end-sites: 78.3 Total number of prefixes smaller than registry allocations: 144294 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 69386 Total APNIC prefixes after maximum aggregation: 24781 APNIC Deaggregation factor: 2.80 Prefixes being announced from the APNIC address blocks: 68804 Unique aggregates announced from the APNIC address blocks: 31533 APNIC Region origin ASes present in the Internet Routing Table: 3708 APNIC Prefixes per ASN: 18.56 APNIC Region origin ASes announcing only one prefix: 1010 APNIC Region transit ASes present in the Internet Routing Table: 571 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 16 Number of APNIC addresses announced to Internet: 469439936 Equivalent to 27 /8s, 251 /16s and 21 /24s Percentage of available APNIC address space announced: 87.4 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, 180/8, 183/8, 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: 123853 Total ARIN prefixes after maximum aggregation: 66050 ARIN Deaggregation factor: 1.88 Prefixes being announced from the ARIN address blocks: 124535 Unique aggregates announced from the ARIN address blocks: 52165 ARIN Region origin ASes present in the Internet Routing Table: 13114 ARIN Prefixes per ASN: 9.50 ARIN Region origin ASes announcing only one prefix: 5050 ARIN Region transit ASes present in the Internet Routing Table: 1274 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 39 Number of ARIN addresses announced to Internet: 1010319808 Equivalent to 60 /8s, 56 /16s and 65 /24s Percentage of available ARIN address space announced: 194.3 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 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: 66747 Total RIPE prefixes after maximum aggregation: 39472 RIPE Deaggregation factor: 1.69 Prefixes being announced from the RIPE address blocks: 66310 Unique aggregates announced from the RIPE address blocks: 44758 RIPE Region origin ASes present in the Internet Routing Table: 13298 RIPE Prefixes per ASN: 4.99 RIPE Region origin ASes announcing only one prefix: 6939 RIPE Region transit ASes present in the Internet Routing Table: 1991 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 496661184 Equivalent to 29 /8s, 154 /16s and 114 /24s Percentage of available RIPE address space announced: 105.7 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: 24613 Total LACNIC prefixes after maximum aggregation: 6037 LACNIC Deaggregation factor: 4.08 Prefixes being announced from the LACNIC address blocks: 24551 Unique aggregates announced from the LACNIC address blocks: 13594 LACNIC Region origin ASes present in the Internet Routing Table: 1143 LACNIC Prefixes per ASN: 21.48 LACNIC Region origin ASes announcing only one prefix: 368 LACNIC Region transit ASes present in the Internet Routing Table: 191 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 20 Number of LACNIC addresses announced to Internet: 72393856 Equivalent to 4 /8s, 80 /16s and 164 /24s Percentage of available LACNIC address space announced: 71.9 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: 6228 Total AfriNIC prefixes after maximum aggregation: 1503 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 6644 Unique aggregates announced from the AfriNIC address blocks: 2564 AfriNIC Region origin ASes present in the Internet Routing Table: 306 AfriNIC Prefixes per ASN: 21.71 AfriNIC Region origin ASes announcing only one prefix: 89 AfriNIC Region transit ASes present in the Internet Routing Table: 64 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 16 Number of AfriNIC addresses announced to Internet: 20050176 Equivalent to 1 /8s, 49 /16s and 241 /24s Percentage of available AfriNIC address space announced: 59.8 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 1700 6934 407 Korea Telecom (KIX) 17488 1543 137 104 Hathway IP Over Cable Interne 4755 1219 292 144 TATA Communications formerly 9583 1126 87 559 Sify Limited 4134 990 17290 375 CHINANET-BACKBONE 7545 811 198 102 TPG Internet Pty Ltd 9829 800 611 14 BSNL National Internet Backbo 23577 785 34 666 Korea Telecom (ATM-MPLS) 18101 749 201 32 Reliance Infocom Ltd Internet 24560 729 246 168 Bharti Airtel Ltd. 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 4245 3643 323 bellsouth.net, inc. 4323 1894 1048 385 Time Warner Telecom 1785 1711 714 139 PaeTec Communications, Inc. 7018 1507 5909 1049 AT&T WorldNet Services 20115 1415 1460 681 Charter Communications 2386 1267 670 918 AT&T Data Communications Serv 6478 1217 275 311 AT&T Worldnet Services 3356 1180 10961 443 Level 3 Communications, LLC 11492 1127 208 12 Cable One 22773 1076 2604 66 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 30890 483 92 196 Evolva Telecom 12479 473 578 6 Uni2 Autonomous System 3292 455 1902 391 TDC Tele Danmark 702 429 1861 345 UUNET - Commercial IP service 35805 356 40 5 United Telecom of Georgia 3320 351 7082 305 Deutsche Telekom AG 3301 348 1684 310 TeliaNet Sweden 3215 343 3065 108 France Telecom Transpac 8866 333 109 20 Bulgarian Telecommunication C 29049 308 26 3 AzerSat LLC. 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 1474 2882 232 UniNet S.A. de C.V. 10620 949 216 111 TVCABLE BOGOTA 28573 613 575 32 NET Servicos de Comunicao S.A 7303 595 315 92 Telecom Argentina Stet-France 22047 543 302 14 VTR PUNTO NET S.A. 11830 488 309 56 Instituto Costarricense de El 11172 442 99 70 Servicios Alestra S.A de C.V 6471 434 96 31 ENTEL CHILE S.A. 7738 410 858 29 Telecomunicacoes da Bahia S.A 3816 383 188 79 Empresa Nacional de Telecomun 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 1025 188 7 TEDATA 24863 903 90 48 LINKdotNET AS number 20858 323 34 5 EgyNet 3741 276 856 236 The Internet Solution 2018 243 215 143 Tertiary Education Network 6713 176 166 16 Itissalat Al-MAGHRIB 33783 152 10 8 EEPAD TISP TELECOM & INTERNET 29571 140 15 8 Ci Telecom Autonomous system 24835 129 46 9 RAYA Telecom - Egypt 5536 123 8 9 Internet Egypt Network 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 4245 3643 323 bellsouth.net, inc. 4323 1894 1048 385 Time Warner Telecom 1785 1711 714 139 PaeTec Communications, Inc. 4766 1700 6934 407 Korea Telecom (KIX) 17488 1543 137 104 Hathway IP Over Cable Interne 7018 1507 5909 1049 AT&T WorldNet Services 8151 1474 2882 232 UniNet S.A. de C.V. 20115 1415 1460 681 Charter Communications 2386 1267 670 918 AT&T Data Communications Serv 4755 1219 292 144 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 1785 1711 1572 PaeTec Communications, Inc. 4323 1894 1509 Time Warner Telecom 17488 1543 1439 Hathway IP Over Cable Interne 4766 1700 1293 Korea Telecom (KIX) 8151 1474 1242 UniNet S.A. de C.V. 11492 1127 1115 Cable One 4755 1219 1075 TATA Communications formerly 18566 1062 1052 Covad Communications 8452 1025 1018 TEDATA 22773 1076 1010 Cox Communications, Inc. 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 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.112.0/22 5713 Telkom SA Ltd 41.223.176.0/22 36981 >>UNKNOWN<< 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 63.143.251.0/24 22555 Universal Talkware Corporatio 64.31.32.0/19 11955 ServiceCo LLC - Road Runner 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 /10:23 /11:58 /12:169 /13:350 /14:612 /15:1164 /16:10530 /17:4745 /18:8215 /19:17158 /20:20481 /21:20356 /22:26143 /23:26067 /24:152392 /25:930 /26:1033 /27:560 /28:155 /29:8 /30:7 /31:1 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2756 4245 bellsouth.net, inc. 4766 1399 1700 Korea Telecom (KIX) 17488 1289 1543 Hathway IP Over Cable Interne 1785 1182 1711 PaeTec Communications, Inc. 11492 1053 1127 Cable One 18566 1043 1062 Covad Communications 2386 985 1267 AT&T Data Communications Serv 9583 979 1126 Sify Limited 4323 961 1894 Time Warner Telecom 8452 947 1025 TEDATA Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:14 8:209 12:2138 13:7 15:19 16:3 17:5 20:35 24:1100 32:51 34:2 38:578 40:98 41:1788 43:1 44:2 47:22 52:6 55:2 56:2 57:24 58:600 59:648 60:461 61:1076 62:1105 63:2049 64:3711 65:2396 66:3585 67:1609 68:858 69:2662 70:555 71:152 72:1665 73:2 74:1617 75:171 76:343 77:841 78:561 79:353 80:979 81:840 82:570 83:457 84:625 85:1029 86:370 87:678 88:371 89:1444 90:50 91:2404 92:363 93:1086 94:1226 95:1120 96:151 97:215 98:251 99:26 110:174 111:91 112:110 113:142 114:255 115:318 116:1127 117:536 118:356 119:744 120:146 121:782 122:1056 123:698 124:982 125:1374 128:225 129:232 130:128 131:413 132:74 133:9 134:187 135:40 136:219 137:164 138:168 139:80 140:443 141:121 142:385 143:352 144:366 145:48 146:390 147:154 148:520 149:231 150:175 151:193 152:146 153:147 154:2 155:274 156:167 157:300 158:117 159:344 160:289 161:153 162:275 163:162 164:476 165:513 166:465 167:360 168:658 169:172 170:477 171:41 172:10 173:314 174:240 178:1 186:103 187:118 188:282 189:543 190:2923 192:5784 193:4268 194:3302 195:2703 196:1121 198:3611 199:3367 200:5139 201:1284 202:7685 203:8266 204:3897 205:2157 206:2449 207:2742 208:3880 209:3377 210:2523 211:1119 212:1652 213:1639 214:84 215:29 216:4543 217:1353 218:396 219:442 220:1113 221:480 222:326 End of report