This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. The posting is sent to APOPS, NANOG, AfNOG, AusNOG, SANOG, PacNOG, LacNOG, CaribNOG and the RIPE Routing Working Group. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.rand.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 26 Feb, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 348212 Prefixes after maximum aggregation: 157161 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 171859 Total ASes present in the Internet Routing Table: 35939 Prefixes per ASN: 9.69 Origin-only ASes present in the Internet Routing Table: 30974 Origin ASes announcing only one prefix: 14951 Transit ASes present in the Internet Routing Table: 4965 Transit-only ASes present in the Internet Routing Table: 120 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 340 Unregistered ASNs in the Routing Table: 141 Number of 32-bit ASNs allocated by the RIRs: 1141 Prefixes from 32-bit ASNs in the Routing Table: 2 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 202 Number of addresses announced to Internet: 2366402016 Equivalent to 141 /8s, 12 /16s and 109 /24s Percentage of available address space announced: 63.8 Percentage of allocated address space announced: 63.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 88.1 Total number of prefixes smaller than registry allocations: 144236 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 86615 Total APNIC prefixes after maximum aggregation: 29555 APNIC Deaggregation factor: 2.93 Prefixes being announced from the APNIC address blocks: 83423 Unique aggregates announced from the APNIC address blocks: 35959 APNIC Region origin ASes present in the Internet Routing Table: 4335 APNIC Prefixes per ASN: 19.24 APNIC Region origin ASes announcing only one prefix: 1203 APNIC Region transit ASes present in the Internet Routing Table: 691 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC addresses announced to Internet: 592208160 Equivalent to 35 /8s, 76 /16s and 97 /24s Percentage of available APNIC address space announced: 75.1 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 1/8, 14/8, 27/8, 36/8, 39/8, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 103/8, 106/8, 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, 133/8, 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, 223/8, ARIN Region Analysis Summary ---------------------------- Prefixes being announced by ARIN Region ASes: 139724 Total ARIN prefixes after maximum aggregation: 71567 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 110380 Unique aggregates announced from the ARIN address blocks: 45012 ARIN Region origin ASes present in the Internet Routing Table: 14211 ARIN Prefixes per ASN: 7.77 ARIN Region origin ASes announcing only one prefix: 5395 ARIN Region transit ASes present in the Internet Routing Table: 1471 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 787499648 Equivalent to 46 /8s, 240 /16s and 74 /24s Percentage of available ARIN address space announced: 62.6 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, 23/8, 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, 50/8, 52/8, 53/8, 54/8, 55/8, 56/8, 57/8, 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, 100/8, 104/8, 107/8, 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: 82337 Total RIPE prefixes after maximum aggregation: 46749 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 75631 Unique aggregates announced from the RIPE address blocks: 49313 RIPE Region origin ASes present in the Internet Routing Table: 15346 RIPE Prefixes per ASN: 4.93 RIPE Region origin ASes announcing only one prefix: 7786 RIPE Region transit ASes present in the Internet Routing Table: 2386 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 461025600 Equivalent to 27 /8s, 122 /16s and 177 /24s Percentage of available RIPE address space announced: 74.3 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, 56320-58367 196608-198655 RIPE Address Blocks 2/8, 5/8, 25/8, 31/8, 37/8, 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, 176/8, 178/8, 185/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31872 Total LACNIC prefixes after maximum aggregation: 7374 LACNIC Deaggregation factor: 4.32 Prefixes being announced from the LACNIC address blocks: 30668 Unique aggregates announced from the LACNIC address blocks: 15906 LACNIC Region origin ASes present in the Internet Routing Table: 1435 LACNIC Prefixes per ASN: 21.37 LACNIC Region origin ASes announcing only one prefix: 434 LACNIC Region transit ASes present in the Internet Routing Table: 264 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 18 Number of LACNIC addresses announced to Internet: 80968832 Equivalent to 4 /8s, 211 /16s and 124 /24s Percentage of available LACNIC address space announced: 53.6 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 179/8, 181/8, 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7451 Total AfriNIC prefixes after maximum aggregation: 1805 AfriNIC Deaggregation factor: 4.13 Prefixes being announced from the AfriNIC address blocks: 5870 Unique aggregates announced from the AfriNIC address blocks: 1836 AfriNIC Region origin ASes present in the Internet Routing Table: 434 AfriNIC Prefixes per ASN: 13.53 AfriNIC Region origin ASes announcing only one prefix: 133 AfriNIC Region transit ASes present in the Internet Routing Table: 92 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21888000 Equivalent to 1 /8s, 77 /16s and 252 /24s Percentage of available AfriNIC address space announced: 32.6 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2421 9501 886 Korea Telecom (KIX) 7545 1614 302 85 TPG Internet Pty Ltd 4755 1418 634 164 TATA Communications formerly 17974 1415 475 29 PT TELEKOMUNIKASI INDONESIA 24560 1115 323 184 Bharti Airtel Ltd., Telemedia 4808 1046 2142 294 CNCGROUP IP network: China169 9583 1045 77 488 Sify Limited 17488 940 161 102 Hathway IP Over Cable Interne 18101 931 117 139 Reliance Infocom Ltd Internet 9829 895 761 45 BSNL National Internet Backbo Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3690 3855 261 bellsouth.net, inc. 4323 2604 1109 404 Time Warner Telecom 19262 1787 4954 285 Verizon Global Networks 1785 1786 697 131 PaeTec Communications, Inc. 20115 1528 1535 647 Charter Communications 6478 1522 296 84 AT&T Worldnet Services 18566 1447 321 156 Covad Communications 7018 1357 6689 874 AT&T WorldNet Services 2386 1297 553 933 AT&T Data Communications Serv 11492 1286 236 70 Cable One Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6830 514 1780 319 UPC Distribution Services 9198 470 267 15 Kazakhtelecom Data Network Ad 34984 465 98 145 BILISIM TELEKOM 3292 447 1996 388 TDC Tele Danmark 8866 442 133 23 Bulgarian Telecommunication C 20940 412 98 316 Akamai Technologies European 3320 410 7620 357 Deutsche Telekom AG 8551 403 353 46 Bezeq International 702 396 1800 310 UUNET - Commercial IP service 3301 383 1822 341 TeliaNet Sweden Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 10620 1383 257 166 TVCABLE BOGOTA 8151 1353 2686 362 UniNet S.A. de C.V. 28573 1234 961 82 NET Servicos de Comunicao S.A 6503 1169 354 73 AVANTEL, S.A. 7303 907 464 145 Telecom Argentina Stet-France 14420 641 57 94 CORPORACION NACIONAL DE TELEC 22047 543 310 15 VTR PUNTO NET S.A. 3816 508 221 101 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 11172 462 83 82 Servicios Alestra S.A de C.V Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 770 445 11 TEDATA 24863 692 147 39 LINKdotNET AS number 15475 473 90 12 Nile Online 36992 299 271 14 Etisalat MISR 3741 264 987 226 The Internet Solution 33776 230 13 5 Starcomms Nigeria Limited 24835 218 78 10 RAYA Telecom - Egypt 6713 205 199 12 Itissalat Al-MAGHRIB 29571 192 17 11 Ci Telecom Autonomous system 16637 156 439 87 MTN Network Solutions Complete listing at http://thyme.rand.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3690 3855 261 bellsouth.net, inc. 4323 2604 1109 404 Time Warner Telecom 4766 2421 9501 886 Korea Telecom (KIX) 19262 1787 4954 285 Verizon Global Networks 1785 1786 697 131 PaeTec Communications, Inc. 7545 1614 302 85 TPG Internet Pty Ltd 20115 1528 1535 647 Charter Communications 6478 1522 296 84 AT&T Worldnet Services 18566 1447 321 156 Covad Communications 4755 1418 634 164 TATA Communications formerly Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 2604 2200 Time Warner Telecom 1785 1786 1655 PaeTec Communications, Inc. 4766 2421 1535 Korea Telecom (KIX) 7545 1614 1529 TPG Internet Pty Ltd 19262 1787 1502 Verizon Global Networks 6478 1522 1438 AT&T Worldnet Services 17974 1415 1386 PT TELEKOMUNIKASI INDONESIA 18566 1447 1291 Covad Communications 4755 1418 1254 TATA Communications formerly 10620 1383 1217 TVCABLE BOGOTA Complete listing at http://thyme.rand.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 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 4323 Time Warner Telecom 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 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.0.0.0/16 12654 RIPE NCC RIS Project 5.1.0.0/21 12654 RIPE NCC RIS Project 5.1.24.0/24 12654 RIPE NCC RIS Project 24.129.192.0/19 7922 Continental Cablevision 31.43.64.0/19 30886 ISP LvivLan autonomous system 37.0.0.0/16 12654 RIPE NCC RIS Project 37.1.0.0/21 12654 RIPE NCC RIS Project 37.1.24.0/24 12654 RIPE NCC RIS Project 41.57.192.0/18 22750 BCSNET 41.222.79.0/24 36938 >>UNKNOWN<< Complete listing at http://thyme.rand.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 /10:26 /11:72 /12:215 /13:444 /14:765 /15:1372 /16:11536 /17:5667 /18:9352 /19:18904 /20:24452 /21:24996 /22:33336 /23:31719 /24:181897 /25:1150 /26:1378 /27:706 /28:169 /29:16 /30:3 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2277 3690 bellsouth.net, inc. 6478 1476 1522 AT&T Worldnet Services 18566 1425 1447 Covad Communications 4323 1403 2604 Time Warner Telecom 10620 1274 1383 TVCABLE BOGOTA 11492 1243 1286 Cable One 7011 1056 1158 Citizens Utilities 1785 1054 1786 PaeTec Communications, Inc. 6503 952 1169 AVANTEL, S.A. 19262 899 1787 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:251 2:40 4:13 5:1 8:333 12:2029 13:1 14:412 15:15 16:3 17:8 20:9 23:1 24:1493 27:596 32:60 33:4 34:2 37:1 38:706 40:101 41:2307 44:3 46:641 47:4 49:153 50:95 52:12 55:2 56:2 57:31 58:865 59:475 60:383 61:1108 62:1042 63:1940 64:3848 65:2360 66:4254 67:1778 68:1030 69:2892 70:730 71:399 72:2012 73:1 74:2350 75:292 76:346 77:854 78:697 79:445 80:1064 81:812 82:522 83:464 84:636 85:1046 86:576 87:738 88:355 89:1578 90:157 91:3542 92:494 93:1047 94:1207 95:771 96:455 97:251 98:790 99:33 101:35 107:3 108:88 109:930 110:484 111:718 112:315 113:369 114:499 115:651 116:946 117:685 118:685 119:1020 120:244 121:696 122:1624 123:1056 124:1291 125:1258 128:266 129:156 130:173 131:568 132:108 133:20 134:220 135:49 136:215 137:146 138:294 139:117 140:490 141:203 142:355 143:386 144:484 145:51 146:441 147:199 148:636 149:273 150:169 151:229 152:298 153:179 154:3 155:377 156:176 157:344 158:128 159:381 160:315 161:208 162:276 163:156 164:486 165:339 166:502 167:411 168:737 169:150 170:755 171:69 172:2 173:1224 174:505 175:320 176:1 177:23 178:771 180:816 181:2 182:363 183:247 184:213 186:1020 187:828 188:896 189:1055 190:4423 192:5806 193:4798 194:3503 195:2964 196:1194 197:3 198:3586 199:3833 200:5603 201:1577 202:8292 203:8444 204:4085 205:2300 206:2644 207:3073 208:3922 209:3485 210:2646 211:1347 212:1932 213:1739 214:768 215:63 216:4856 217:1639 218:547 219:365 220:1201 221:452 222:314 223:104 End of report