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 22 Aug, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 293735 Prefixes after maximum aggregation: 139010 Deaggregation factor: 2.11 Unique aggregates announced to Internet: 146284 Total ASes present in the Internet Routing Table: 31976 Prefixes per ASN: 9.19 Origin-only ASes present in the Internet Routing Table: 27800 Origin ASes announcing only one prefix: 13547 Transit ASes present in the Internet Routing Table: 4176 Transit-only ASes present in the Internet Routing Table: 100 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 Max AS path prepend of ASN (12026) 22 Prefixes from unregistered ASNs in the Routing Table: 629 Unregistered ASNs in the Routing Table: 167 Number of 32-bit ASNs allocated by the RIRs: 241 Prefixes from 32-bit ASNs in the Routing Table: 92 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 328 Number of addresses announced to Internet: 2089063616 Equivalent to 124 /8s, 132 /16s and 148 /24s Percentage of available address space announced: 56.4 Percentage of allocated address space announced: 64.5 Percentage of available address space allocated: 87.3 Percentage of address space in use by end-sites: 78.7 Total number of prefixes smaller than registry allocations: 140471 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 70153 Total APNIC prefixes after maximum aggregation: 24877 APNIC Deaggregation factor: 2.82 Prefixes being announced from the APNIC address blocks: 69601 Unique aggregates announced from the APNIC address blocks: 31611 APNIC Region origin ASes present in the Internet Routing Table: 3747 APNIC Prefixes per ASN: 18.58 APNIC Region origin ASes announcing only one prefix: 1023 APNIC Region transit ASes present in the Internet Routing Table: 579 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 481521344 Equivalent to 28 /8s, 179 /16s and 110 /24s Percentage of available APNIC address space announced: 82.0 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 APNIC Address Blocks 43/8, 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, 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, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 124497 Total ARIN prefixes after maximum aggregation: 66423 ARIN Deaggregation factor: 1.87 Prefixes being announced from the ARIN address blocks: 125109 Unique aggregates announced from the ARIN address blocks: 52466 ARIN Region origin ASes present in the Internet Routing Table: 13183 ARIN Prefixes per ASN: 9.49 ARIN Region origin ASes announcing only one prefix: 5077 ARIN Region transit ASes present in the Internet Routing Table: 1290 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 24 Number of ARIN addresses announced to Internet: 1012944512 Equivalent to 60 /8s, 96 /16s and 78 /24s Percentage of available ARIN address space announced: 88.8 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 53248-55295 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, 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, 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: 67501 Total RIPE prefixes after maximum aggregation: 39779 RIPE Deaggregation factor: 1.70 Prefixes being announced from the RIPE address blocks: 67114 Unique aggregates announced from the RIPE address blocks: 45359 RIPE Region origin ASes present in the Internet Routing Table: 13379 RIPE Prefixes per ASN: 5.02 RIPE Region origin ASes announcing only one prefix: 6987 RIPE Region transit ASes present in the Internet Routing Table: 2000 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 499549376 Equivalent to 29 /8s, 198 /16s and 132 /24s Percentage of available RIPE address space announced: 99.3 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 25/8, 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, 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: 24997 Total LACNIC prefixes after maximum aggregation: 6135 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 24966 Unique aggregates announced from the LACNIC address blocks: 13957 LACNIC Region origin ASes present in the Internet Routing Table: 1160 LACNIC Prefixes per ASN: 21.52 LACNIC Region origin ASes announcing only one prefix: 375 LACNIC Region transit ASes present in the Internet Routing Table: 188 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 22 Number of LACNIC addresses announced to Internet: 73280448 Equivalent to 4 /8s, 94 /16s and 43 /24s Percentage of available LACNIC address space announced: 72.8 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: 6210 Total AfriNIC prefixes after maximum aggregation: 1526 AfriNIC Deaggregation factor: 4.07 Prefixes being announced from the AfriNIC address blocks: 6617 Unique aggregates announced from the AfriNIC address blocks: 2630 AfriNIC Region origin ASes present in the Internet Routing Table: 307 AfriNIC Prefixes per ASN: 21.55 AfriNIC Region origin ASes announcing only one prefix: 85 AfriNIC Region transit ASes present in the Internet Routing Table: 69 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 20242944 Equivalent to 1 /8s, 52 /16s and 226 /24s Percentage of available AfriNIC address space announced: 60.3 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 1724 6979 424 Korea Telecom (KIX) 17488 1554 140 103 Hathway IP Over Cable Interne 4755 1227 292 140 TATA Communications formerly 9583 1088 86 530 Sify Limited 4134 998 18167 389 CHINANET-BACKBONE 18101 959 202 32 Reliance Infocom Ltd Internet 7545 819 198 103 TPG Internet Pty Ltd 9829 807 620 16 BSNL National Internet Backbo 23577 787 34 667 Korea Telecom (ATM-MPLS) 4808 762 1533 176 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 4177 3607 314 bellsouth.net, inc. 4323 1908 1049 390 Time Warner Telecom 1785 1728 714 138 PaeTec Communications, Inc. 7018 1492 5875 1052 AT&T WorldNet Services 20115 1471 1474 674 Charter Communications 6478 1381 282 271 AT&T Worldnet Services 2386 1289 657 937 AT&T Data Communications Serv 3356 1210 10979 438 Level 3 Communications, LLC 11492 1110 208 12 Cable One 22773 1086 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 484 92 197 Evolva Telecom 12479 475 578 6 Uni2 Autonomous System 3292 462 1905 397 TDC Tele Danmark 702 430 1861 346 UUNET - Commercial IP service 35805 380 40 5 United Telecom of Georgia 9198 366 138 12 Kazakhtelecom Data Network Ad 3320 348 7067 301 Deutsche Telekom AG 3215 344 3081 109 France Telecom Transpac 3301 344 1412 308 TeliaNet Sweden 8866 340 109 20 Bulgarian Telecommunication C 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 1475 2882 246 UniNet S.A. de C.V. 10620 990 220 93 TVCABLE BOGOTA 7303 625 332 96 Telecom Argentina Stet-France 28573 619 582 37 NET Servicos de Comunicao S.A 22047 541 302 14 VTR PUNTO NET S.A. 11830 485 308 67 Instituto Costarricense de El 11172 442 99 70 Servicios Alestra S.A de C.V 6471 421 96 31 ENTEL CHILE S.A. 7738 415 858 29 Telecomunicacoes da Bahia S.A 3816 396 191 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 1002 188 7 TEDATA 24863 917 91 50 LINKdotNET AS number 20858 324 34 6 EgyNet 3741 277 857 237 The Internet Solution 2018 200 180 141 Tertiary Education Network 6713 175 166 16 Itissalat Al-MAGHRIB 33783 152 10 8 EEPAD TISP TELECOM & INTERNET 29571 143 14 6 Ci Telecom Autonomous system 24835 130 46 9 RAYA Telecom - Egypt 5536 122 8 13 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 4177 3607 314 bellsouth.net, inc. 4323 1908 1049 390 Time Warner Telecom 1785 1728 714 138 PaeTec Communications, Inc. 4766 1724 6979 424 Korea Telecom (KIX) 17488 1554 140 103 Hathway IP Over Cable Interne 7018 1492 5875 1052 AT&T WorldNet Services 8151 1475 2882 246 UniNet S.A. de C.V. 20115 1471 1474 674 Charter Communications 6478 1381 282 271 AT&T Worldnet Services 2386 1289 657 937 AT&T Data Communications Serv Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 1785 1728 1590 PaeTec Communications, Inc. 4323 1908 1518 Time Warner Telecom 17488 1554 1451 Hathway IP Over Cable Interne 4766 1724 1300 Korea Telecom (KIX) 8151 1475 1229 UniNet S.A. de C.V. 6478 1381 1110 AT&T Worldnet Services 11492 1110 1098 Cable One 4755 1227 1087 TATA Communications formerly 18566 1062 1052 Covad Communications 22773 1086 1020 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 24.225.128.0/17 36377 PATRIOT MEDIA AND COMMUNICATI 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.176.0/22 36981 >>UNKNOWN<< 41.223.188.0/24 22351 Intelsat 41.223.189.0/24 26452 Local Communications Networks 43.245.0.0/16 7502 Internetwork Kyoto 43.245.96.0/20 7502 Internetwork Kyoto 43.245.112.0/20 7502 Internetwork Kyoto 43.245.192.0/20 7502 Internetwork Kyoto 43.245.208.0/20 7502 Internetwork Kyoto 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 /10:24 /11:59 /12:168 /13:351 /14:623 /15:1176 /16:10626 /17:4809 /18:8355 /19:17303 /20:20678 /21:20624 /22:26600 /23:26336 /24:153249 /25:924 /26:1039 /27:585 /28:153 /29:8 /30:7 /31:1 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2707 4177 bellsouth.net, inc. 4766 1412 1724 Korea Telecom (KIX) 17488 1300 1554 Hathway IP Over Cable Interne 1785 1199 1728 PaeTec Communications, Inc. 18566 1043 1062 Covad Communications 11492 1037 1110 Cable One 4323 960 1908 Time Warner Telecom 9583 941 1088 Sify Limited 8452 926 1002 TEDATA 10620 896 990 TVCABLE BOGOTA Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 4:14 8:213 12:2138 13:7 15:21 16:3 17:5 20:35 24:1129 32:52 34:2 38:598 40:97 41:1760 43:1 44:2 47:10 52:6 55:2 56:2 57:25 58:621 59:608 60:461 61:973 62:1105 63:2013 64:3624 65:2404 66:3416 67:1740 68:870 69:2729 70:556 71:162 72:1654 73:2 74:1707 75:179 76:314 77:851 78:569 79:372 80:933 81:850 82:598 83:453 84:633 85:1070 86:375 87:674 88:372 89:1462 90:48 91:2499 92:398 93:1114 94:1195 95:1160 96:166 97:264 98:283 99:28 110:185 111:382 112:118 113:152 114:238 115:287 116:1141 117:551 118:330 119:770 120:120 121:651 122:1238 123:755 124:1026 125:1338 128:224 129:219 130:128 131:416 132:75 133:9 134:182 135:43 136:225 137:160 138:170 139:83 140:444 141:123 142:384 143:353 144:388 145:49 146:390 147:156 148:530 149:222 150:208 151:192 152:210 153:148 154:2 155:272 156:167 157:301 158:112 159:344 160:290 161:164 162:269 163:164 164:275 165:529 166:465 167:360 168:701 169:161 170:475 171:41 172:2 173:381 174:316 175:1 178:1 180:7 182:1 186:129 187:164 188:416 189:583 190:2922 192:5784 193:4257 194:3294 195:2689 196:1115 198:3650 199:3364 200:5111 201:1304 202:7744 203:8275 204:3882 205:2166 206:2451 207:2738 208:3929 209:3408 210:2529 211:1103 212:1604 213:1655 214:132 215:30 216:4303 217:1349 218:405 219:415 220:1118 221:461 222:329 End of report