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 Oct, 2008 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 271514 Prefixes after maximum aggregation: 130898 Deaggregation factor: 2.07 Unique aggregates announced to Internet: 131783 Total ASes present in the Internet Routing Table: 29518 Prefixes per ASN: 9.20 Origin-only ASes present in the Internet Routing Table: 25695 Origin ASes announcing only one prefix: 12506 Transit ASes present in the Internet Routing Table: 3823 Transit-only ASes present in the Internet Routing Table: 81 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 104 Max AS path prepend of ASN (43413) 100 Prefixes from unregistered ASNs in the Routing Table: 562 Unregistered ASNs in the Routing Table: 201 Number of 32-bit ASNs allocated by the RIRs: 61 Prefixes from 32-bit ASNs in the Routing Table: 9 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 752 Number of addresses announced to Internet: 1923950912 Equivalent to 114 /8s, 173 /16s and 41 /24s Percentage of available address space announced: 51.9 Percentage of allocated address space announced: 63.0 Percentage of available address space allocated: 82.3 Percentage of address space in use by end-sites: 73.9 Total number of prefixes smaller than registry allocations: 133641 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 62245 Total APNIC prefixes after maximum aggregation: 23219 APNIC Deaggregation factor: 2.68 Prefixes being announced from the APNIC address blocks: 59212 Unique aggregates announced from the APNIC address blocks: 26686 APNIC Region origin ASes present in the Internet Routing Table: 3404 APNIC Prefixes per ASN: 17.39 APNIC Region origin ASes announcing only one prefix: 906 APNIC Region transit ASes present in the Internet Routing Table: 537 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 19 Number of APNIC addresses announced to Internet: 379108256 Equivalent to 22 /8s, 152 /16s and 187 /24s Percentage of available APNIC address space announced: 80.7 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, 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: 123346 Total ARIN prefixes after maximum aggregation: 64844 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 92672 Unique aggregates announced from the ARIN address blocks: 35033 ARIN Region origin ASes present in the Internet Routing Table: 12538 ARIN Prefixes per ASN: 7.39 ARIN Region origin ASes announcing only one prefix: 4859 ARIN Region transit ASes present in the Internet Routing Table: 1195 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 16 Number of ARIN addresses announced to Internet: 363895840 Equivalent to 21 /8s, 176 /16s and 156 /24s Percentage of available ARIN address space announced: 74.8 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, 173/8, 174/8, 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: 59495 Total RIPE prefixes after maximum aggregation: 35663 RIPE Deaggregation factor: 1.67 Prefixes being announced from the RIPE address blocks: 54642 Unique aggregates announced from the RIPE address blocks: 36307 RIPE Region origin ASes present in the Internet Routing Table: 12030 RIPE Prefixes per ASN: 4.54 RIPE Region origin ASes announcing only one prefix: 6326 RIPE Region transit ASes present in the Internet Routing Table: 1824 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 104 Number of RIPE addresses announced to Internet: 375674272 Equivalent to 22 /8s, 100 /16s and 85 /24s Percentage of available RIPE address space announced: 86.1 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, 47104-49151 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 21833 Total LACNIC prefixes after maximum aggregation: 5417 LACNIC Deaggregation factor: 4.03 Prefixes being announced from the LACNIC address blocks: 19891 Unique aggregates announced from the LACNIC address blocks: 11115 LACNIC Region origin ASes present in the Internet Routing Table: 1014 LACNIC Prefixes per ASN: 19.62 LACNIC Region origin ASes announcing only one prefix: 334 LACNIC Region transit ASes present in the Internet Routing Table: 171 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 57394944 Equivalent to 3 /8s, 107 /16s and 199 /24s Percentage of available LACNIC address space announced: 57.0 LACNIC AS Blocks 26592-26623, 27648-28671, 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: 4036 Total AfriNIC prefixes after maximum aggregation: 1316 AfriNIC Deaggregation factor: 3.07 Prefixes being announced from the AfriNIC address blocks: 4290 Unique aggregates announced from the AfriNIC address blocks: 2100 AfriNIC Region origin ASes present in the Internet Routing Table: 260 AfriNIC Prefixes per ASN: 16.50 AfriNIC Region origin ASes announcing only one prefix: 81 AfriNIC Region transit ASes present in the Internet Routing Table: 52 Average AfriNIC Region AS path length visible: 3.9 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12856576 Equivalent to 0 /8s, 196 /16s and 45 /24s Percentage of available AfriNIC address space announced: 38.3 AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4755 1483 518 196 TATA Communications formerly 17488 1388 96 103 Hathway IP Over Cable Interne 9583 1104 86 474 Sify Limited 4766 879 6407 360 Korea Telecom (KIX) 4134 844 13647 345 CHINANET-BACKBONE 23577 811 34 693 Korea Telecom (ATM-MPLS) 18101 781 161 65 Reliance Infocom Ltd Internet 4780 717 355 62 Digital United Inc. 9498 688 295 53 BHARTI BT INTERNET LTD. 4808 627 1164 142 CNCGROUP IP network: China169 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 4301 3416 339 bellsouth.net, inc. 209 3075 4033 623 Qwest 6298 2010 319 714 Cox Communicatons 20115 1925 1426 718 Charter Communications 1785 1678 717 155 PaeTec Communications, Inc. 2386 1589 699 896 AT&T Data Communications Serv 4323 1550 1083 373 Time Warner Telecom 7018 1413 5859 984 AT&T WorldNet Services 6478 1318 273 198 AT&T Worldnet Services 11492 1212 152 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 3292 434 1777 385 TDC Tele Danmark 30890 348 94 188 SC Kappa Invexim SRL 3215 327 2756 106 France Telecom Transpac 3301 327 1428 298 TeliaNet Sweden 3320 326 7063 275 Deutsche Telekom AG 8866 326 111 23 Bulgarian Telecommunication C 5462 301 794 27 Telewest Broadband 25233 295 45 27 Awalnet 8452 294 188 11 TEDATA 8551 287 270 37 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 1411 2849 221 UniNet S.A. de C.V. 11830 669 299 9 Instituto Costarricense de El 22047 564 270 14 VTR PUNTO NET S.A. 10620 505 122 61 TVCABLE BOGOTA 7303 493 242 69 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 6471 419 85 48 ENTEL CHILE S.A. 11172 405 118 72 Servicios Alestra S.A de C.V 28573 349 460 23 NET Servicos de Comunicao S.A 14117 343 23 9 Telefonica del Sur 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 544 72 40 LINKdotNET AS number 3741 269 856 225 The Internet Solution 2018 233 215 139 Tertiary Education Network 20858 213 34 3 EgyNet 6713 143 135 11 Itissalat Al-MAGHRIB 33783 137 10 13 EEPAD TISP TELECOM & INTERNET 5536 124 8 20 Internet Egypt Network 33776 116 6 3 Starcomms Nigeria Limited 5713 115 555 65 Telkom SA Ltd 29571 112 13 9 Ci Telecom Autonomous system 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 4301 3416 339 bellsouth.net, inc. 209 3075 4033 623 Qwest 6298 2010 319 714 Cox Communicatons 20115 1925 1426 718 Charter Communications 1785 1678 717 155 PaeTec Communications, Inc. 2386 1589 699 896 AT&T Data Communications Serv 4323 1550 1083 373 Time Warner Telecom 4755 1483 518 196 TATA Communications formerly 7018 1413 5859 984 AT&T WorldNet Services 8151 1411 2849 221 UniNet S.A. de C.V. Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 209 3075 2452 Qwest 1785 1678 1523 PaeTec Communications, Inc. 6298 2010 1296 Cox Communicatons 4755 1483 1287 TATA Communications formerly 17488 1388 1285 Hathway IP Over Cable Interne 20115 1925 1207 Charter Communications 11492 1212 1201 Cable One 8151 1411 1190 UniNet S.A. de C.V. 4323 1550 1177 Time Warner Telecom 6478 1318 1120 AT&T Worldnet Services 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 22492 UNALLOCATED 12.2.46.0/24 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 3549 Global Crossing 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 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 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 63.143.71.0/24 701 UUNET Technologies, Inc. 63.143.115.0/24 701 UUNET Technologies, Inc. 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 /9:9 /10:17 /11:46 /12:148 /13:298 /14:536 /15:1066 /16:10125 /17:4399 /18:7590 /19:16364 /20:19244 /21:18707 /22:23677 /23:24603 /24:141889 /25:820 /26:999 /27:851 /28:90 /29:9 /30:1 /31:0 /32:7 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2847 4301 bellsouth.net, inc. 6298 1984 2010 Cox Communicatons 209 1796 3075 Qwest 2386 1268 1589 AT&T Data Communications Serv 11492 1188 1212 Cable One 17488 1179 1388 Hathway IP Over Cable Interne 1785 1139 1678 PaeTec Communications, Inc. 6478 1104 1318 AT&T Worldnet Services 18566 1040 1059 Covad Communications 20115 1033 1925 Charter Communications Complete listing at http://thyme.apnic.net/current/data/sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:12 8:141 12:2186 13:2 15:22 16:3 17:5 18:13 20:38 24:1148 31:1 32:58 38:511 40:92 41:708 43:1 44:2 47:12 52:3 55:3 56:3 57:26 58:521 59:530 60:452 61:983 62:1092 63:2037 64:3240 65:2429 66:3519 67:1286 68:805 69:2346 70:861 71:276 72:2056 73:7 74:1254 75:213 76:279 77:924 78:810 79:279 80:906 81:864 82:587 83:402 84:592 85:1036 86:501 87:706 88:325 89:1380 90:23 91:1602 92:270 93:928 94:258 95:3 96:80 97:102 98:350 99:11 113:15 114:110 115:122 116:985 117:378 118:240 119:523 120:93 121:604 122:852 123:446 124:862 125:1195 128:353 129:207 130:135 131:417 132:72 133:9 134:185 135:31 136:223 137:98 138:144 139:81 140:433 141:106 142:401 143:291 144:326 145:51 146:375 147:153 148:530 149:207 150:128 151:208 152:149 153:135 154:10 155:278 156:173 157:301 158:170 159:305 160:275 161:139 162:255 163:133 164:520 165:511 166:363 167:338 168:644 169:145 170:448 171:33 172:10 173:54 187:16 188:1 189:292 190:2317 192:5750 193:4147 194:3260 195:2617 196:1002 198:3735 199:3299 200:5552 201:1424 202:7820 203:8040 204:3925 205:2164 206:2293 207:2764 208:3708 209:3440 210:2566 211:1102 212:1514 213:1614 214:169 215:50 216:4419 217:1244 218:349 219:439 220:1053 221:413 222:298 End of report