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 <pfsinoz@gmail.com>. Routing Table Report 04:00 +10GMT Sat 16 Jul, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 363652 Prefixes after maximum aggregation: 165367 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 180640 Total ASes present in the Internet Routing Table: 38198 Prefixes per ASN: 9.52 Origin-only ASes present in the Internet Routing Table: 31741 Origin ASes announcing only one prefix: 15260 Transit ASes present in the Internet Routing Table: 5195 Transit-only ASes present in the Internet Routing Table: 132 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (22394) 27 Prefixes from unregistered ASNs in the Routing Table: 917 Unregistered ASNs in the Routing Table: 532 Number of 32-bit ASNs allocated by the RIRs: 1559 Number of 32-bit ASNs visible in the Routing Table: 1262 Prefixes from 32-bit ASNs in the Routing Table: 2910 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 122 Number of addresses announced to Internet: 2477764128 Equivalent to 147 /8s, 175 /16s and 174 /24s Percentage of available address space announced: 66.8 Percentage of allocated address space announced: 66.9 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.1 Total number of prefixes smaller than registry allocations: 151592 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 90715 Total APNIC prefixes after maximum aggregation: 30300 APNIC Deaggregation factor: 2.99 Prefixes being announced from the APNIC address blocks: 87321 Unique aggregates announced from the APNIC address blocks: 37425 APNIC Region origin ASes present in the Internet Routing Table: 4519 APNIC Prefixes per ASN: 19.32 APNIC Region origin ASes announcing only one prefix: 1253 APNIC Region transit ASes present in the Internet Routing Table: 716 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 61 Number of APNIC addresses announced to Internet: 622188352 Equivalent to 37 /8s, 21 /16s and 215 /24s Percentage of available APNIC address space announced: 78.9 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: 141554 Total ARIN prefixes after maximum aggregation: 73093 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 113475 Unique aggregates announced from the ARIN address blocks: 46690 ARIN Region origin ASes present in the Internet Routing Table: 14485 ARIN Prefixes per ASN: 7.83 ARIN Region origin ASes announcing only one prefix: 5538 ARIN Region transit ASes present in the Internet Routing Table: 1526 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 30 Number of ARIN region 32-bit ASNs visible in the Routing Table: 13 Number of ARIN addresses announced to Internet: 802399872 Equivalent to 47 /8s, 211 /16s and 166 /24s Percentage of available ARIN address space announced: 63.8 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: 86584 Total RIPE prefixes after maximum aggregation: 49219 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79927 Unique aggregates announced from the RIPE address blocks: 52892 RIPE Region origin ASes present in the Internet Routing Table: 15802 RIPE Prefixes per ASN: 5.06 RIPE Region origin ASes announcing only one prefix: 7878 RIPE Region transit ASes present in the Internet Routing Table: 2504 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 919 Number of RIPE addresses announced to Internet: 479486528 Equivalent to 28 /8s, 148 /16s and 98 /24s Percentage of available RIPE address space announced: 77.2 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: 33534 Total LACNIC prefixes after maximum aggregation: 7585 LACNIC Deaggregation factor: 4.42 Prefixes being announced from the LACNIC address blocks: 32747 Unique aggregates announced from the LACNIC address blocks: 17050 LACNIC Region origin ASes present in the Internet Routing Table: 1481 LACNIC Prefixes per ASN: 22.11 LACNIC Region origin ASes announcing only one prefix: 445 LACNIC Region transit ASes present in the Internet Routing Table: 273 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 265 Number of LACNIC addresses announced to Internet: 86070528 Equivalent to 5 /8s, 33 /16s and 85 /24s Percentage of available LACNIC address space announced: 57.0 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: 8177 Total AfriNIC prefixes after maximum aggregation: 1965 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 6491 Unique aggregates announced from the AfriNIC address blocks: 1992 AfriNIC Region origin ASes present in the Internet Routing Table: 468 AfriNIC Prefixes per ASN: 13.87 AfriNIC Region origin ASes announcing only one prefix: 146 AfriNIC Region transit ASes present in the Internet Routing Table: 103 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 24338944 Equivalent to 1 /8s, 115 /16s and 98 /24s Percentage of available AfriNIC address space announced: 36.3 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 2469 11044 937 Korea Telecom (KIX) 7545 1554 301 85 TPG Internet Pty Ltd 17974 1543 456 45 PT TELEKOMUNIKASI INDONESIA 4755 1505 635 170 TATA Communications formerly 7552 1283 1064 7 Vietel Corporation 24560 1155 336 187 Bharti Airtel Ltd., Telemedia 9829 1106 923 47 BSNL National Internet Backbo 9583 1064 78 504 Sify Limited 4808 1047 2092 299 CNCGROUP IP network: China169 17488 966 187 106 Hathway IP Over Cable Interne 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 3599 3818 241 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1805 681 121 PaeTec Communications, Inc. 4323 1657 1082 400 Time Warner Telecom 20115 1594 1534 627 Charter Communications 19262 1410 4744 390 Verizon Global Networks 7018 1365 7069 892 AT&T WorldNet Services 22773 1351 2897 88 Cox Communications, Inc. 7029 1291 791 305 Windstream Communications Inc 2386 1260 520 907 AT&T Data Communications Serv 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 34984 535 106 184 BILISIM TELEKOM 6830 510 1780 315 UPC Distribution Services 3292 468 2078 403 TDC Tele Danmark 12479 458 593 7 Uni2 Autonomous System 20940 458 131 354 Akamai Technologies European 8866 449 133 25 Bulgarian Telecommunication C 29049 432 32 47 AzerSat LLC. 3320 423 8151 369 Deutsche Telekom AG 8551 404 354 44 Bezeq International 702 399 1803 312 UUNET - Commercial IP service 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 1549 284 162 TVCABLE BOGOTA 8151 1437 2746 353 UniNet S.A. de C.V. 28573 1277 995 77 NET Servicos de Comunicao S.A 7303 986 511 165 Telecom Argentina Stet-France 6503 749 354 74 AVANTEL, S.A. 14420 690 55 84 CORPORACION NACIONAL DE TELEC 22047 578 322 17 VTR PUNTO NET S.A. 3816 533 230 97 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 508 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 24863 795 147 36 LINKdotNET AS number 8452 780 445 11 TEDATA 15475 513 74 8 Nile Online 36992 315 415 14 Etisalat MISR 3741 261 937 223 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 227 13 5 Starcomms Nigeria Limited 24835 175 78 10 RAYA Telecom - Egypt 29571 158 17 11 Ci Telecom Autonomous system 16637 148 441 86 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 3599 3818 241 bellsouth.net, inc. 23456 2910 707 1559 32-bit ASN transition 4766 2469 11044 937 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 1785 1805 681 121 PaeTec Communications, Inc. 4323 1657 1082 400 Time Warner Telecom 20115 1594 1534 627 Charter Communications 7545 1554 301 85 TPG Internet Pty Ltd 10620 1549 284 162 TVCABLE BOGOTA 17974 1543 456 45 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 1785 1805 1684 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2469 1532 Korea Telecom (KIX) 17974 1543 1498 PT TELEKOMUNIKASI INDONESIA 7545 1554 1469 TPG Internet Pty Ltd 10620 1549 1387 TVCABLE BOGOTA 23456 2910 1351 32-bit ASN transition 4755 1505 1335 TATA Communications formerly 7552 1283 1276 Vietel Corporation 22773 1351 1263 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 4323 Time Warner Telecom 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 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 64.21.192.0/20 11610 Internet Nebraska Corporation 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 /8:20 /9:12 /10:26 /11:80 /12:232 /13:464 /14:795 /15:1396 /16:12005 /17:5876 /18:9821 /19:19496 /20:26056 /21:26209 /22:34865 /23:33683 /24:189377 /25:1057 /26:1247 /27:720 /28:198 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2216 3599 bellsouth.net, inc. 18566 1869 1913 Covad Communications 10620 1444 1549 TVCABLE BOGOTA 23456 1423 2910 32-bit ASN transition 11492 1097 1143 Cable One 7011 1056 1158 Citizens Utilities 6478 1055 1084 AT&T Worldnet Services 1785 1053 1805 PaeTec Communications, Inc. 7029 1038 1291 Windstream Communications Inc 22773 865 1351 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:328 2:44 4:16 5:1 6:3 8:338 12:1967 13:1 14:488 15:15 16:3 17:5 20:10 23:14 24:1679 27:824 31:502 32:64 33:4 34:2 36:4 38:745 40:104 41:2562 42:32 44:3 46:1037 47:3 49:201 50:471 52:13 54:2 55:4 56:2 57:35 58:863 59:479 60:386 61:1123 62:1033 63:1932 64:3954 65:2300 66:3889 67:1872 68:1103 69:3044 70:756 71:389 72:1888 74:2386 75:318 76:341 77:887 78:710 79:457 80:1116 81:840 82:499 83:454 84:691 85:1063 86:523 87:764 88:336 89:1534 90:224 91:3959 92:522 93:1050 94:1337 95:858 96:414 97:260 98:891 99:37 101:77 103:143 106:10 107:22 108:70 109:1022 110:607 111:712 112:305 113:406 114:552 115:686 116:978 117:689 118:832 119:1164 120:313 121:677 122:1608 123:979 124:1300 125:1277 128:245 129:171 130:169 131:575 132:111 133:21 134:213 135:48 136:216 137:137 138:297 139:116 140:482 141:244 142:403 143:416 144:483 145:55 146:452 147:211 148:680 149:248 150:160 151:189 152:342 153:182 154:4 155:397 156:198 157:323 158:138 159:454 160:311 161:202 162:309 163:164 164:499 165:366 166:529 167:433 168:734 169:153 170:847 171:78 172:1 173:1619 174:609 175:375 176:142 177:171 178:1005 180:898 181:23 182:492 183:231 184:344 185:1 186:1284 187:732 188:895 189:939 190:4979 192:5900 193:4975 194:3527 195:3029 196:1238 197:43 198:3581 199:3975 200:5561 201:1492 202:8416 203:8428 204:4235 205:2327 206:2668 207:2811 208:3969 209:3447 210:2693 211:1451 212:2100 213:1737 214:778 215:69 216:4936 217:1633 218:543 219:351 220:1231 221:496 222:337 223:218 End of report