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 12 Feb, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 345778 Prefixes after maximum aggregation: 155766 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 170953 Total ASes present in the Internet Routing Table: 35854 Prefixes per ASN: 9.64 Origin-only ASes present in the Internet Routing Table: 30896 Origin ASes announcing only one prefix: 14961 Transit ASes present in the Internet Routing Table: 4958 Transit-only ASes present in the Internet Routing Table: 124 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: 332 Unregistered ASNs in the Routing Table: 131 Number of 32-bit ASNs allocated by the RIRs: 1110 Prefixes from 32-bit ASNs in the Routing Table: 1 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 205 Number of addresses announced to Internet: 2391302464 Equivalent to 142 /8s, 136 /16s and 97 /24s Percentage of available address space announced: 64.5 Percentage of allocated address space announced: 64.5 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 87.9 Total number of prefixes smaller than registry allocations: 142918 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 85341 Total APNIC prefixes after maximum aggregation: 28875 APNIC Deaggregation factor: 2.96 Prefixes being announced from the APNIC address blocks: 82125 Unique aggregates announced from the APNIC address blocks: 35753 APNIC Region origin ASes present in the Internet Routing Table: 4317 APNIC Prefixes per ASN: 19.02 APNIC Region origin ASes announcing only one prefix: 1203 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 587134752 Equivalent to 34 /8s, 254 /16s and 247 /24s Percentage of available APNIC address space announced: 74.5 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: 139230 Total ARIN prefixes after maximum aggregation: 71212 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110113 Unique aggregates announced from the ARIN address blocks: 44882 ARIN Region origin ASes present in the Internet Routing Table: 14196 ARIN Prefixes per ASN: 7.76 ARIN Region origin ASes announcing only one prefix: 5420 ARIN Region transit ASes present in the Internet Routing Table: 1476 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 786454144 Equivalent to 46 /8s, 224 /16s and 86 /24s Percentage of available ARIN address space announced: 62.5 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: 81886 Total RIPE prefixes after maximum aggregation: 46434 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 75207 Unique aggregates announced from the RIPE address blocks: 48805 RIPE Region origin ASes present in the Internet Routing Table: 15293 RIPE Prefixes per ASN: 4.92 RIPE Region origin ASes announcing only one prefix: 7772 RIPE Region transit ASes present in the Internet Routing Table: 2377 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 459033920 Equivalent to 27 /8s, 92 /16s and 77 /24s Percentage of available RIPE address space announced: 73.9 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: 31630 Total LACNIC prefixes after maximum aggregation: 7330 LACNIC Deaggregation factor: 4.32 Prefixes being announced from the LACNIC address blocks: 30383 Unique aggregates announced from the LACNIC address blocks: 15919 LACNIC Region origin ASes present in the Internet Routing Table: 1430 LACNIC Prefixes per ASN: 21.25 LACNIC Region origin ASes announcing only one prefix: 434 LACNIC Region transit ASes present in the Internet Routing Table: 258 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 80671104 Equivalent to 4 /8s, 206 /16s and 241 /24s Percentage of available LACNIC address space announced: 53.4 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: 7471 Total AfriNIC prefixes after maximum aggregation: 1804 AfriNIC Deaggregation factor: 4.14 Prefixes being announced from the AfriNIC address blocks: 5880 Unique aggregates announced from the AfriNIC address blocks: 1832 AfriNIC Region origin ASes present in the Internet Routing Table: 435 AfriNIC Prefixes per ASN: 13.52 AfriNIC Region origin ASes announcing only one prefix: 131 AfriNIC Region transit ASes present in the Internet Routing Table: 93 Average AfriNIC Region AS path length visible: 5.3 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21855488 Equivalent to 1 /8s, 77 /16s and 125 /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 1991 9487 584 Korea Telecom (KIX) 7545 1633 301 84 TPG Internet Pty Ltd 4755 1412 633 161 TATA Communications formerly 17974 1408 467 28 PT TELEKOMUNIKASI INDONESIA 24560 1108 323 181 Bharti Airtel Ltd., Telemedia 4808 1042 2142 294 CNCGROUP IP network: China169 9583 1042 76 487 Sify Limited 17488 952 162 104 Hathway IP Over Cable Interne 18101 929 117 144 Reliance Infocom Ltd Internet 9829 898 763 42 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 3704 3855 264 bellsouth.net, inc. 4323 2625 1109 403 Time Warner Telecom 19262 1842 4951 283 Verizon Global Networks 1785 1786 697 131 PaeTec Communications, Inc. 20115 1529 1534 646 Charter Communications 6478 1500 296 62 AT&T Worldnet Services 7018 1353 6673 870 AT&T WorldNet Services 2386 1299 553 936 AT&T Data Communications Serv 11492 1282 236 73 Cable One 18566 1282 311 104 Covad Communications 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 511 1764 316 UPC Distribution Services 9198 465 266 14 Kazakhtelecom Data Network Ad 34984 456 97 137 BILISIM TELEKOM 3292 445 1996 387 TDC Tele Danmark 8866 440 133 23 Bulgarian Telecommunication C 3320 406 7620 355 Deutsche Telekom AG 8551 403 353 46 Bezeq International 20940 401 93 308 Akamai Technologies European 702 395 1800 308 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 1371 255 165 TVCABLE BOGOTA 8151 1342 2663 359 UniNet S.A. de C.V. 28573 1237 961 82 NET Servicos de Comunicao S.A 6503 1189 355 78 AVANTEL, S.A. 7303 872 445 142 Telecom Argentina Stet-France 14420 638 57 92 CORPORACION NACIONAL DE TELEC 22047 543 310 15 VTR PUNTO NET S.A. 3816 503 220 94 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 27947 458 53 53 Telconet S.A 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 771 445 11 TEDATA 24863 763 147 39 LINKdotNET AS number 36992 584 305 17 Etisalat MISR 3741 264 987 226 The Internet Solution 15475 220 56 9 Nile Online 24835 218 78 10 RAYA Telecom - Egypt 6713 205 199 12 Itissalat Al-MAGHRIB 33776 194 12 15 Starcomms Nigeria Limited 29571 193 19 11 Ci Telecom Autonomous system 16637 147 422 83 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 3704 3855 264 bellsouth.net, inc. 4323 2625 1109 403 Time Warner Telecom 4766 1991 9487 584 Korea Telecom (KIX) 19262 1842 4951 283 Verizon Global Networks 1785 1786 697 131 PaeTec Communications, Inc. 7545 1633 301 84 TPG Internet Pty Ltd 20115 1529 1534 646 Charter Communications 6478 1500 296 62 AT&T Worldnet Services 4755 1412 633 161 TATA Communications formerly 17974 1408 467 28 PT TELEKOMUNIKASI INDONESIA 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 2625 2222 Time Warner Telecom 1785 1786 1655 PaeTec Communications, Inc. 19262 1842 1559 Verizon Global Networks 7545 1633 1549 TPG Internet Pty Ltd 6478 1500 1438 AT&T Worldnet Services 4766 1991 1407 Korea Telecom (KIX) 17974 1408 1380 PT TELEKOMUNIKASI INDONESIA 4755 1412 1251 TATA Communications formerly 11492 1282 1209 Cable One 10620 1371 1206 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 31.28.0.0/19 29076 Hoster.RU 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 39.0.0.0/8 237 Merit Network 41.57.192.0/18 22750 BCSNET 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 /8:21 /9:10 /10:26 /11:71 /12:215 /13:444 /14:764 /15:1364 /16:11492 /17:5636 /18:9315 /19:18823 /20:24344 /21:24767 /22:32958 /23:31632 /24:181055 /25:986 /26:1087 /27:570 /28:171 /29:16 /30:3 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2283 3704 bellsouth.net, inc. 6478 1454 1500 AT&T Worldnet Services 4323 1414 2625 Time Warner Telecom 10620 1262 1371 TVCABLE BOGOTA 18566 1260 1282 Covad Communications 11492 1239 1282 Cable One 7011 1062 1165 Citizens Utilities 1785 1055 1786 PaeTec Communications, Inc. 6503 966 1189 AVANTEL, S.A. 19262 954 1842 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:177 2:45 4:13 5:1 8:331 12:2028 13:1 14:412 15:15 16:3 17:8 20:9 23:1 24:1480 27:579 32:61 33:5 34:2 37:1 38:701 40:101 41:2285 44:3 46:585 47:5 49:145 50:82 52:12 55:7 56:2 57:32 58:868 59:477 60:391 61:1114 62:1095 63:1944 64:3781 65:2363 66:4163 67:1761 68:1025 69:2914 70:739 71:400 72:2006 73:1 74:2324 75:292 76:345 77:864 78:705 79:444 80:1048 81:824 82:538 83:471 84:645 85:1052 86:553 87:740 88:355 89:1574 90:156 91:3462 92:494 93:1040 94:1200 95:754 96:428 97:251 98:792 99:33 101:27 107:3 108:88 109:955 110:471 111:695 112:311 113:360 114:502 115:640 116:934 117:679 118:668 119:1021 120:239 121:702 122:1634 123:1061 124:1270 125:1225 128:264 129:153 130:172 131:570 132:109 133:20 134:217 135:49 136:216 137:147 138:291 139:117 140:492 141:196 142:358 143:387 144:483 145:51 146:431 147:202 148:635 149:274 150:161 151:229 152:306 153:179 154:3 155:350 156:176 157:342 158:129 159:380 160:314 161:205 162:272 163:161 164:486 165:339 166:498 167:422 168:742 169:151 170:750 171:69 172:2 173:1289 174:519 175:315 176:1 177:4 178:758 180:796 182:350 183:240 184:209 186:988 187:809 188:908 189:1044 190:4340 192:5797 193:4799 194:3504 195:2955 196:1177 197:3 198:3576 199:3829 200:5573 201:1580 202:8272 203:8432 204:4115 205:2337 206:2631 207:3081 208:3899 209:3496 210:2650 211:1334 212:1886 213:1731 214:756 215:62 216:4885 217:1612 218:532 219:376 220:1203 221:449 222:313 223:97 End of report