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 29 Jan, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 340429 Prefixes after maximum aggregation: 154694 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 169224 Total ASes present in the Internet Routing Table: 35707 Prefixes per ASN: 9.53 Origin-only ASes present in the Internet Routing Table: 30778 Origin ASes announcing only one prefix: 14951 Transit ASes present in the Internet Routing Table: 4929 Transit-only ASes present in the Internet Routing Table: 118 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: 321 Unregistered ASNs in the Routing Table: 126 Number of 32-bit ASNs allocated by the RIRs: 1051 Prefixes from 32-bit ASNs in the Routing Table: 6 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 215 Number of addresses announced to Internet: 2348554048 Equivalent to 139 /8s, 252 /16s and 23 /24s Percentage of available address space announced: 63.4 Percentage of allocated address space announced: 65.4 Percentage of available address space allocated: 96.8 Percentage of address space in use by end-sites: 88.0 Total number of prefixes smaller than registry allocations: 139482 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 84978 Total APNIC prefixes after maximum aggregation: 28832 APNIC Deaggregation factor: 2.95 Prefixes being announced from the APNIC address blocks: 81750 Unique aggregates announced from the APNIC address blocks: 35514 APNIC Region origin ASes present in the Internet Routing Table: 4313 APNIC Prefixes per ASN: 18.95 APNIC Region origin ASes announcing only one prefix: 1219 APNIC Region transit ASes present in the Internet Routing Table: 690 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 20 Number of APNIC addresses announced to Internet: 586409504 Equivalent to 34 /8s, 243 /16s and 230 /24s Percentage of available APNIC address space announced: 79.4 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, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 138008 Total ARIN prefixes after maximum aggregation: 70693 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 108934 Unique aggregates announced from the ARIN address blocks: 44467 ARIN Region origin ASes present in the Internet Routing Table: 14154 ARIN Prefixes per ASN: 7.70 ARIN Region origin ASes announcing only one prefix: 5405 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: 23 Number of ARIN addresses announced to Internet: 751502720 Equivalent to 44 /8s, 203 /16s and 5 /24s Percentage of available ARIN address space announced: 63.1 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, 47/8, 48/8, 50/8, 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, 100/8, 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: 80950 Total RIPE prefixes after maximum aggregation: 46146 RIPE Deaggregation factor: 1.75 Prefixes being announced from the RIPE address blocks: 74326 Unique aggregates announced from the RIPE address blocks: 48334 RIPE Region origin ASes present in the Internet Routing Table: 15230 RIPE Prefixes per ASN: 4.88 RIPE Region origin ASes announcing only one prefix: 7770 RIPE Region transit ASes present in the Internet Routing Table: 2370 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 25 Number of RIPE addresses announced to Internet: 456913728 Equivalent to 27 /8s, 59 /16s and 243 /24s Percentage of available RIPE address space announced: 75.7 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, 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 31587 Total LACNIC prefixes after maximum aggregation: 7249 LACNIC Deaggregation factor: 4.36 Prefixes being announced from the LACNIC address blocks: 30348 Unique aggregates announced from the LACNIC address blocks: 15794 LACNIC Region origin ASes present in the Internet Routing Table: 1424 LACNIC Prefixes per ASN: 21.31 LACNIC Region origin ASes announcing only one prefix: 431 LACNIC Region transit ASes present in the Internet Routing Table: 250 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC addresses announced to Internet: 80151168 Equivalent to 4 /8s, 199 /16s and 2 /24s Percentage of available LACNIC address space announced: 59.7 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 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: 4684 Total AfriNIC prefixes after maximum aggregation: 1653 AfriNIC Deaggregation factor: 2.83 Prefixes being announced from the AfriNIC address blocks: 3503 Unique aggregates announced from the AfriNIC address blocks: 1581 AfriNIC Region origin ASes present in the Internet Routing Table: 407 AfriNIC Prefixes per ASN: 8.61 AfriNIC Region origin ASes announcing only one prefix: 126 AfriNIC Region transit ASes present in the Internet Routing Table: 92 Average AfriNIC Region AS path length visible: 5.1 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 18336512 Equivalent to 1 /8s, 23 /16s and 203 /24s Percentage of available AfriNIC address space announced: 36.4 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 105/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1915 9485 526 Korea Telecom (KIX) 7545 1594 301 82 TPG Internet Pty Ltd 4755 1401 636 159 TATA Communications formerly 17974 1395 467 27 PT TELEKOMUNIKASI INDONESIA 24560 1094 317 180 Bharti Airtel Ltd., Telemedia 9583 1044 76 487 Sify Limited 4808 1028 2108 287 CNCGROUP IP network: China169 17488 950 162 103 Hathway IP Over Cable Interne 18101 924 117 142 Reliance Infocom Ltd Internet 9829 847 739 75 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 3710 3855 265 bellsouth.net, inc. 4323 2629 1109 404 Time Warner Telecom 19262 1841 4943 285 Verizon Global Networks 1785 1787 697 133 PaeTec Communications, Inc. 20115 1519 1529 643 Charter Communications 6478 1476 291 56 AT&T Worldnet Services 7018 1360 6674 875 AT&T WorldNet Services 2386 1297 553 933 AT&T Data Communications Serv 22773 1274 2864 77 Cox Communications, Inc. 11492 1266 235 81 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 1764 319 UPC Distribution Services 9198 465 266 14 Kazakhtelecom Data Network Ad 34984 458 97 137 BILISIM TELEKOM 3292 447 2011 390 TDC Tele Danmark 8866 438 133 23 Bulgarian Telecommunication C 12479 412 577 6 Uni2 Autonomous System 3320 403 7619 352 Deutsche Telekom AG 8551 402 353 46 Bezeq International 702 396 1816 309 UUNET - Commercial IP service 20940 393 91 303 Akamai Technologies European 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 1358 252 165 TVCABLE BOGOTA 8151 1329 2627 355 UniNet S.A. de C.V. 28573 1245 959 82 NET Servicos de Comunicao S.A 6503 1149 355 78 AVANTEL, S.A. 7303 885 461 114 Telecom Argentina Stet-France 14420 614 55 90 CORPORACION NACIONAL DE TELEC 22047 566 310 15 VTR PUNTO NET S.A. 3816 526 222 99 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 456 34 31 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 3741 264 987 226 The Internet Solution 6713 203 199 12 Itissalat Al-MAGHRIB 33776 194 12 15 Starcomms Nigeria Limited 29571 193 17 11 Ci Telecom Autonomous system 16637 161 440 90 MTN Network Solutions 36874 139 24 6 Cybersmart 29975 131 475 17 Vodacom 37061 108 9 2 One Communications Ltd 15706 106 16 5 Sudatel Internet Exchange Aut 37054 85 5 21 Data Telecom Service 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 3710 3855 265 bellsouth.net, inc. 4323 2629 1109 404 Time Warner Telecom 4766 1915 9485 526 Korea Telecom (KIX) 19262 1841 4943 285 Verizon Global Networks 1785 1787 697 133 PaeTec Communications, Inc. 7545 1594 301 82 TPG Internet Pty Ltd 20115 1519 1529 643 Charter Communications 6478 1476 291 56 AT&T Worldnet Services 4755 1401 636 159 TATA Communications formerly 17974 1395 467 27 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 2629 2225 Time Warner Telecom 1785 1787 1654 PaeTec Communications, Inc. 19262 1841 1556 Verizon Global Networks 7545 1594 1512 TPG Internet Pty Ltd 6478 1476 1420 AT&T Worldnet Services 4766 1915 1389 Korea Telecom (KIX) 17974 1395 1368 PT TELEKOMUNIKASI INDONESIA 4755 1401 1242 TATA Communications formerly 22773 1274 1197 Cox Communications, Inc. 10620 1358 1193 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 41.57.192.0/18 22750 BCSNET 41.78.192.0/22 30999 Emtel is GSM, 3G and ISP in M 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 /11:71 /12:214 /13:440 /14:765 /15:1358 /16:11463 /17:5579 /18:9215 /19:18750 /20:24139 /21:24535 /22:32307 /23:30984 /24:177748 /25:979 /26:1061 /27:578 /28:162 /29:16 /30:2 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2289 3710 bellsouth.net, inc. 6478 1430 1476 AT&T Worldnet Services 4323 1417 2629 Time Warner Telecom 10620 1249 1358 TVCABLE BOGOTA 11492 1222 1266 Cable One 18566 1092 1111 Covad Communications 7011 1065 1168 Citizens Utilities 1785 1059 1787 PaeTec Communications, Inc. 19262 954 1841 Verizon Global Networks 6503 933 1149 AVANTEL, S.A. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:167 2:30 4:13 5:1 8:331 12:2029 13:1 14:381 15:15 16:3 17:8 20:9 23:1 24:1466 27:548 32:61 33:5 34:2 36:1 37:1 38:693 40:101 41:1617 42:1 44:3 46:514 47:5 49:143 50:74 52:12 55:6 56:2 57:30 58:870 59:483 60:391 61:1119 62:783 63:1924 64:3761 65:2331 66:4068 67:1754 68:998 69:2866 70:717 71:392 72:1987 73:1 74:2302 75:293 76:329 77:851 78:692 79:436 80:1022 81:767 82:508 83:470 84:458 85:1044 86:512 87:727 88:359 89:1579 90:159 91:3424 92:492 93:1041 94:1154 95:779 96:413 97:249 98:756 99:33 101:24 107:3 108:81 109:856 110:471 111:695 112:313 113:346 114:495 115:635 116:879 117:673 118:646 119:1031 120:234 121:702 122:1610 123:1050 124:1269 125:1213 128:247 129:158 130:174 131:570 132:110 133:20 134:218 135:49 136:216 137:147 138:293 139:120 140:491 141:198 142:360 143:377 144:488 145:51 146:426 147:194 148:625 149:273 150:151 151:230 152:303 153:175 154:3 155:346 156:174 157:341 158:128 159:377 160:313 161:203 162:277 163:117 164:484 165:336 166:481 167:422 168:739 169:150 170:746 171:66 172:1 173:1264 174:511 175:308 176:1 177:4 178:760 180:754 182:399 183:251 184:207 186:957 187:799 188:906 189:1015 190:4438 192:5782 193:4796 194:3466 195:2930 196:1024 197:3 198:3551 199:3749 200:5585 201:1583 202:8274 203:8431 204:4092 205:2347 206:2533 207:2967 208:3884 209:3493 210:2629 211:1330 212:1852 213:1622 214:751 215:62 216:4824 217:1489 218:526 219:375 220:1202 221:448 222:319 223:93 End of report