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 19 Feb, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 347279 Prefixes after maximum aggregation: 156690 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 171504 Total ASes present in the Internet Routing Table: 35911 Prefixes per ASN: 9.67 Origin-only ASes present in the Internet Routing Table: 30942 Origin ASes announcing only one prefix: 14976 Transit ASes present in the Internet Routing Table: 4969 Transit-only ASes present in the Internet Routing Table: 122 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: 333 Unregistered ASNs in the Routing Table: 135 Number of 32-bit ASNs allocated by the RIRs: 1131 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: 206 Number of addresses announced to Internet: 2396213440 Equivalent to 142 /8s, 211 /16s and 80 /24s Percentage of available address space announced: 64.6 Percentage of allocated address space announced: 64.6 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 88.0 Total number of prefixes smaller than registry allocations: 143943 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 85964 Total APNIC prefixes after maximum aggregation: 29310 APNIC Deaggregation factor: 2.93 Prefixes being announced from the APNIC address blocks: 82763 Unique aggregates announced from the APNIC address blocks: 35864 APNIC Region origin ASes present in the Internet Routing Table: 4330 APNIC Prefixes per ASN: 19.11 APNIC Region origin ASes announcing only one prefix: 1205 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: 589615904 Equivalent to 35 /8s, 36 /16s and 211 /24s Percentage of available APNIC address space announced: 74.8 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: 139812 Total ARIN prefixes after maximum aggregation: 71478 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 110606 Unique aggregates announced from the ARIN address blocks: 44958 ARIN Region origin ASes present in the Internet Routing Table: 14208 ARIN Prefixes per ASN: 7.78 ARIN Region origin ASes announcing only one prefix: 5412 ARIN Region transit ASes present in the Internet Routing Table: 1470 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 27 Number of ARIN addresses announced to Internet: 787367552 Equivalent to 46 /8s, 238 /16s and 70 /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: 82060 Total RIPE prefixes after maximum aggregation: 46598 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 75405 Unique aggregates announced from the RIPE address blocks: 49074 RIPE Region origin ASes present in the Internet Routing Table: 15325 RIPE Prefixes per ASN: 4.92 RIPE Region origin ASes announcing only one prefix: 7790 RIPE Region transit ASes present in the Internet Routing Table: 2392 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 460222144 Equivalent to 27 /8s, 110 /16s and 110 /24s Percentage of available RIPE address space announced: 74.1 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, 47104-52223, 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: 31784 Total LACNIC prefixes after maximum aggregation: 7387 LACNIC Deaggregation factor: 4.30 Prefixes being announced from the LACNIC address blocks: 30548 Unique aggregates announced from the LACNIC address blocks: 15959 LACNIC Region origin ASes present in the Internet Routing Table: 1429 LACNIC Prefixes per ASN: 21.38 LACNIC Region origin ASes announcing only one prefix: 436 LACNIC Region transit ASes present in the Internet Routing Table: 261 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 80804992 Equivalent to 4 /8s, 208 /16s and 252 /24s Percentage of available LACNIC address space announced: 53.5 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: 7445 Total AfriNIC prefixes after maximum aggregation: 1807 AfriNIC Deaggregation factor: 4.12 Prefixes being announced from the AfriNIC address blocks: 5842 Unique aggregates announced from the AfriNIC address blocks: 1841 AfriNIC Region origin ASes present in the Internet Routing Table: 437 AfriNIC Prefixes per ASN: 13.37 AfriNIC Region origin ASes announcing only one prefix: 132 AfriNIC Region transit ASes present in the Internet Routing Table: 95 Average AfriNIC Region AS path length visible: 5.4 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21857280 Equivalent to 1 /8s, 77 /16s and 132 /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 2307 9497 819 Korea Telecom (KIX) 7545 1628 302 87 TPG Internet Pty Ltd 4755 1417 634 163 TATA Communications formerly 17974 1409 475 29 PT TELEKOMUNIKASI INDONESIA 24560 1113 323 182 Bharti Airtel Ltd., Telemedia 9583 1044 77 488 Sify Limited 4808 1042 2142 294 CNCGROUP IP network: China169 17488 950 162 103 Hathway IP Over Cable Interne 18101 929 117 141 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 3694 3855 261 bellsouth.net, inc. 4323 2623 1109 405 Time Warner Telecom 19262 1843 4955 283 Verizon Global Networks 1785 1784 697 131 PaeTec Communications, Inc. 20115 1527 1534 646 Charter Communications 6478 1510 295 78 AT&T Worldnet Services 18566 1433 320 158 Covad Communications 7018 1358 6674 878 AT&T WorldNet Services 2386 1297 553 934 AT&T Data Communications Serv 11492 1280 236 73 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 513 1764 318 UPC Distribution Services 9198 468 267 15 Kazakhtelecom Data Network Ad 34984 463 98 143 BILISIM TELEKOM 3292 447 1996 388 TDC Tele Danmark 8866 440 133 23 Bulgarian Telecommunication C 20940 412 99 318 Akamai Technologies European 3320 410 7620 357 Deutsche Telekom AG 8551 403 353 46 Bezeq International 702 396 1800 309 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 1374 255 166 TVCABLE BOGOTA 8151 1342 2664 359 UniNet S.A. de C.V. 28573 1232 961 82 NET Servicos de Comunicao S.A 6503 1187 354 73 AVANTEL, S.A. 7303 898 463 142 Telecom Argentina Stet-France 14420 638 57 92 CORPORACION NACIONAL DE TELEC 22047 545 310 15 VTR PUNTO NET S.A. 3816 508 221 97 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 461 34 33 Telefonica del Sur 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 24863 763 147 39 LINKdotNET AS number 8452 730 445 11 TEDATA 15475 496 90 12 Nile Online 36992 301 271 14 Etisalat MISR 3741 264 987 226 The Internet Solution 24835 219 78 10 RAYA Telecom - Egypt 6713 205 199 12 Itissalat Al-MAGHRIB 33776 194 12 15 Starcomms Nigeria Limited 29571 192 17 11 Ci Telecom Autonomous system 16637 149 422 85 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 3694 3855 261 bellsouth.net, inc. 4323 2623 1109 405 Time Warner Telecom 4766 2307 9497 819 Korea Telecom (KIX) 19262 1843 4955 283 Verizon Global Networks 1785 1784 697 131 PaeTec Communications, Inc. 7545 1628 302 87 TPG Internet Pty Ltd 20115 1527 1534 646 Charter Communications 6478 1510 295 78 AT&T Worldnet Services 18566 1433 320 158 Covad Communications 4755 1417 634 163 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 2623 2218 Time Warner Telecom 1785 1784 1653 PaeTec Communications, Inc. 19262 1843 1560 Verizon Global Networks 7545 1628 1541 TPG Internet Pty Ltd 4766 2307 1488 Korea Telecom (KIX) 6478 1510 1432 AT&T Worldnet Services 17974 1409 1380 PT TELEKOMUNIKASI INDONESIA 18566 1433 1275 Covad Communications 4755 1417 1254 TATA Communications formerly 10620 1374 1208 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 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 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 /8:21 /9:10 /10:26 /11:72 /12:215 /13:445 /14:764 /15:1368 /16:11511 /17:5649 /18:9326 /19:18851 /20:24423 /21:24899 /22:33017 /23:31756 /24:181723 /25:1076 /26:1274 /27:657 /28:169 /29:16 /30:3 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2281 3694 bellsouth.net, inc. 6478 1464 1510 AT&T Worldnet Services 4323 1413 2623 Time Warner Telecom 18566 1411 1433 Covad Communications 10620 1265 1374 TVCABLE BOGOTA 11492 1237 1280 Cable One 1785 1054 1784 PaeTec Communications, Inc. 7011 1054 1157 Citizens Utilities 6503 969 1187 AVANTEL, S.A. 19262 954 1843 Verizon Global Networks Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:196 2:42 4:13 5:1 8:334 12:2029 13:1 14:409 15:15 16:3 17:8 20:9 23:1 24:1489 27:587 32:60 33:4 34:2 37:1 38:706 40:101 41:2241 44:3 46:617 47:4 49:149 50:93 52:12 55:2 56:2 57:32 58:862 59:475 60:391 61:1107 62:1053 63:1940 64:3828 65:2349 66:4224 67:1781 68:1028 69:2949 70:736 71:403 72:2020 73:1 74:2344 75:292 76:346 77:871 78:710 79:446 80:1053 81:823 82:503 83:475 84:634 85:1043 86:559 87:750 88:355 89:1573 90:157 91:3516 92:493 93:1039 94:1208 95:768 96:453 97:251 98:824 99:33 101:31 107:3 108:88 109:929 110:480 111:706 112:314 113:369 114:500 115:656 116:928 117:687 118:675 119:1021 120:242 121:701 122:1627 123:1052 124:1286 125:1257 128:266 129:156 130:170 131:569 132:109 133:20 134:216 135:49 136:215 137:146 138:292 139:119 140:494 141:203 142:359 143:376 144:486 145:51 146:437 147:199 148:638 149:276 150:160 151:229 152:298 153:180 154:3 155:349 156:176 157:342 158:129 159:380 160:313 161:206 162:274 163:161 164:486 165:338 166:502 167:422 168:737 169:150 170:754 171:69 172:11 173:1318 174:530 175:317 176:1 177:9 178:783 180:810 182:361 183:247 184:210 186:1010 187:826 188:895 189:1067 190:4404 192:5802 193:4803 194:3509 195:2955 196:1191 197:3 198:3573 199:3834 200:5595 201:1581 202:8260 203:8442 204:4101 205:2341 206:2624 207:3086 208:3903 209:3496 210:2632 211:1340 212:1930 213:1737 214:739 215:62 216:4892 217:1621 218:540 219:379 220:1201 221:452 222:312 223:100 End of report