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 10 Oct, 2009 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 299909 Prefixes after maximum aggregation: 140664 Deaggregation factor: 2.13 Unique aggregates announced to Internet: 148721 Total ASes present in the Internet Routing Table: 32379 Prefixes per ASN: 9.26 Origin-only ASes present in the Internet Routing Table: 28138 Origin ASes announcing only one prefix: 13738 Transit ASes present in the Internet Routing Table: 4241 Transit-only ASes present in the Internet Routing Table: 102 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: 560 Unregistered ASNs in the Routing Table: 127 Number of 32-bit ASNs allocated by the RIRs: 292 Prefixes from 32-bit ASNs in the Routing Table: 213 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 190 Number of addresses announced to Internet: 2112370016 Equivalent to 125 /8s, 232 /16s and 53 /24s Percentage of available address space announced: 57.0 Percentage of allocated address space announced: 64.6 Percentage of available address space allocated: 88.2 Percentage of address space in use by end-sites: 79.3 Total number of prefixes smaller than registry allocations: 144194 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 71884 Total APNIC prefixes after maximum aggregation: 25318 APNIC Deaggregation factor: 2.84 Prefixes being announced from the APNIC address blocks: 68393 Unique aggregates announced from the APNIC address blocks: 30300 APNIC Region origin ASes present in the Internet Routing Table: 3816 APNIC Prefixes per ASN: 17.92 APNIC Region origin ASes announcing only one prefix: 1047 APNIC Region transit ASes present in the Internet Routing Table: 587 Average APNIC Region AS path length visible: 3.5 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 461684000 Equivalent to 27 /8s, 132 /16s and 189 /24s Percentage of available APNIC address space announced: 78.6 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 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: 126884 Total ARIN prefixes after maximum aggregation: 66823 ARIN Deaggregation factor: 1.90 Prefixes being announced from the ARIN address blocks: 101398 Unique aggregates announced from the ARIN address blocks: 38471 ARIN Region origin ASes present in the Internet Routing Table: 13278 ARIN Prefixes per ASN: 7.64 ARIN Region origin ASes announcing only one prefix: 5135 ARIN Region transit ASes present in the Internet Routing Table: 1301 Average ARIN Region AS path length visible: 3.3 Max ARIN Region AS path length visible: 24 Number of ARIN addresses announced to Internet: 706797568 Equivalent to 42 /8s, 32 /16s and 224 /24s Percentage of available ARIN address space announced: 62.0 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 53248-55295, 393216-394239 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: 68963 Total RIPE prefixes after maximum aggregation: 40347 RIPE Deaggregation factor: 1.71 Prefixes being announced from the RIPE address blocks: 62540 Unique aggregates announced from the RIPE address blocks: 41940 RIPE Region origin ASes present in the Internet Routing Table: 13579 RIPE Prefixes per ASN: 4.61 RIPE Region origin ASes announcing only one prefix: 7080 RIPE Region transit ASes present in the Internet Routing Table: 2043 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 401178048 Equivalent to 23 /8s, 233 /16s and 125 /24s Percentage of available RIPE address space announced: 74.7 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, 196608-197631 RIPE Address Blocks 2/8, 25/8, 46/8, 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: 25802 Total LACNIC prefixes after maximum aggregation: 6344 LACNIC Deaggregation factor: 4.07 Prefixes being announced from the LACNIC address blocks: 24098 Unique aggregates announced from the LACNIC address blocks: 13510 LACNIC Region origin ASes present in the Internet Routing Table: 1190 LACNIC Prefixes per ASN: 20.25 LACNIC Region origin ASes announcing only one prefix: 380 LACNIC Region transit ASes present in the Internet Routing Table: 192 Average LACNIC Region AS path length visible: 4.1 Max LACNIC Region AS path length visible: 21 Number of LACNIC addresses announced to Internet: 67013376 Equivalent to 3 /8s, 254 /16s and 139 /24s Percentage of available LACNIC address space announced: 66.6 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 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: 5925 Total AfriNIC prefixes after maximum aggregation: 1561 AfriNIC Deaggregation factor: 3.80 Prefixes being announced from the AfriNIC address blocks: 4303 Unique aggregates announced from the AfriNIC address blocks: 1546 AfriNIC Region origin ASes present in the Internet Routing Table: 325 AfriNIC Prefixes per ASN: 13.24 AfriNIC Region origin ASes announcing only one prefix: 96 AfriNIC Region transit ASes present in the Internet Routing Table: 67 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 15 Number of AfriNIC addresses announced to Internet: 12557568 Equivalent to 0 /8s, 191 /16s and 157 /24s Percentage of available AfriNIC address space announced: 37.4 AfriNIC AS Blocks 36864-37887, 327680-328703 & 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 1766 6996 458 Korea Telecom (KIX) 17488 1460 137 144 Hathway IP Over Cable Interne 4755 1261 292 145 TATA Communications formerly 9583 1101 87 530 Sify Limited 4134 1010 18168 391 CHINANET-BACKBONE 18101 979 204 33 Reliance Infocom Ltd Internet 7545 893 199 102 TPG Internet Pty Ltd 9829 816 629 21 BSNL National Internet Backbo 17974 790 248 93 PT TELEKOMUNIKASI INDONESIA 24560 775 285 164 Bharti Airtel Ltd., Telemedia 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 4161 3626 313 bellsouth.net, inc. 4323 3697 1037 385 Time Warner Telecom 1785 1762 714 138 PaeTec Communications, Inc. 7018 1543 5860 1057 AT&T WorldNet Services 20115 1484 1480 673 Charter Communications 6478 1405 280 340 AT&T Worldnet Services 2386 1308 641 947 AT&T Data Communications Serv 3356 1221 10963 433 Level 3 Communications, LLC 11492 1133 208 12 Cable One 22773 1111 2604 67 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 509 94 207 Evolva Telecom 3292 450 1908 394 TDC Tele Danmark 35805 445 40 5 United Telecom of Georgia 12479 427 578 6 Uni2 Autonomous System 702 422 1822 340 UUNET - Commercial IP service 9198 390 138 12 Kazakhtelecom Data Network Ad 8866 356 110 21 Bulgarian Telecommunication C 3320 352 7067 303 Deutsche Telekom AG 3301 351 1412 308 TeliaNet Sweden 3215 349 3144 111 France Telecom Transpac 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 1482 2899 243 UniNet S.A. de C.V. 10620 1020 227 95 TVCABLE BOGOTA 28573 762 651 87 NET Servicos de Comunicao S.A 7303 656 346 97 Telecom Argentina Stet-France 22047 545 302 14 VTR PUNTO NET S.A. 11830 475 310 61 Instituto Costarricense de El 11172 440 99 70 Servicios Alestra S.A de C.V 14117 436 29 11 Telefonica del Sur S.A. 7738 428 858 29 Telecomunicacoes da Bahia S.A 6471 421 96 31 ENTEL CHILE 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 8452 984 188 7 TEDATA 24863 926 95 68 LINKdotNET AS number 3741 278 857 239 The Internet Solution 2018 192 187 118 Tertiary Education Network 6713 176 167 12 Itissalat Al-MAGHRIB 29571 140 14 6 Ci Telecom Autonomous system 33776 125 7 11 Starcomms Nigeria Limited 24835 123 46 9 RAYA Telecom - Egypt 5536 122 8 13 Internet Egypt Network 5713 116 508 67 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 4161 3626 313 bellsouth.net, inc. 4323 3697 1037 385 Time Warner Telecom 4766 1766 6996 458 Korea Telecom (KIX) 1785 1762 714 138 PaeTec Communications, Inc. 7018 1543 5860 1057 AT&T WorldNet Services 20115 1484 1480 673 Charter Communications 8151 1482 2899 243 UniNet S.A. de C.V. 17488 1460 137 144 Hathway IP Over Cable Interne 6478 1405 280 340 AT&T Worldnet Services 2386 1308 641 947 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 4323 3697 3312 Time Warner Telecom 1785 1762 1624 PaeTec Communications, Inc. 17488 1460 1316 Hathway IP Over Cable Interne 4766 1766 1308 Korea Telecom (KIX) 8151 1482 1239 UniNet S.A. de C.V. 11492 1133 1121 Cable One 4755 1261 1116 TATA Communications formerly 6478 1405 1065 AT&T Worldnet Services 18566 1062 1052 Covad Communications 22773 1111 1044 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 2.0.0.0/16 12654 RIPE NCC RIS Project 2.1.0.0/21 12654 RIPE NCC RIS Project 2.1.24.0/24 12654 RIPE NCC RIS Project 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.189.0/24 26452 Local Communications Networks 43.245.0.0/16 7502 Internetwork Kyoto 46.0.0.0/16 12654 RIPE NCC RIS Project 46.1.0.0/21 12654 RIPE NCC RIS Project 46.1.24.0/24 12654 RIPE NCC RIS Project 62.61.220.0/24 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 /8:20 /9:10 /10:24 /11:63 /12:176 /13:354 /14:628 /15:1202 /16:10682 /17:4892 /18:8410 /19:17500 /20:21007 /21:21008 /22:27238 /23:26831 /24:157108 /25:932 /26:1091 /27:554 /28:154 /29:8 /30:9 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2694 4161 bellsouth.net, inc. 4323 2353 3697 Time Warner Telecom 4766 1438 1766 Korea Telecom (KIX) 1785 1228 1762 PaeTec Communications, Inc. 17488 1220 1460 Hathway IP Over Cable Interne 11492 1058 1133 Cable One 18566 1043 1062 Covad Communications 9583 953 1101 Sify Limited 10620 926 1020 TVCABLE BOGOTA 8452 912 984 TEDATA Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 2:1 4:14 8:226 12:2147 13:7 15:22 16:3 17:5 20:36 24:1168 32:52 34:2 38:601 40:97 41:1735 43:1 44:2 45:1 46:1 47:21 52:6 55:2 56:2 57:25 58:606 59:642 60:443 61:1078 62:1011 63:2012 64:3638 65:2382 66:4094 67:1795 68:985 69:2777 70:573 71:154 72:1668 73:2 74:1934 75:182 76:350 77:871 78:583 79:390 80:910 81:814 82:504 83:431 84:527 85:1003 86:381 87:688 88:386 89:1498 90:62 91:2590 92:412 93:1217 94:1258 95:1132 96:171 97:271 98:326 99:30 109:51 110:222 111:451 112:143 113:152 114:265 115:428 116:1097 117:552 118:350 119:778 120:135 121:784 122:1287 123:788 124:1044 125:1360 128:220 129:211 130:131 131:415 132:77 133:10 134:182 135:42 136:224 137:168 138:173 139:84 140:440 141:123 142:381 143:336 144:364 145:48 146:393 147:168 148:550 149:204 150:151 151:176 152:215 153:156 154:2 155:271 156:166 157:309 158:100 159:356 160:292 161:168 162:279 163:170 164:279 165:517 166:472 167:390 168:799 169:168 170:469 171:43 172:2 173:414 174:364 175:1 178:1 180:57 182:1 186:143 187:154 188:1134 189:603 190:3101 192:5756 193:4267 194:3295 195:2753 196:1159 198:3550 199:3346 200:5205 201:1351 202:7868 203:8227 204:3926 205:2190 206:2416 207:2976 208:3958 209:3491 210:2561 211:1127 212:1592 213:1620 214:189 215:40 216:4429 217:1336 218:411 219:457 220:1135 221:449 222:316 End of report