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 08 Oct, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 376147 Prefixes after maximum aggregation: 169003 Deaggregation factor: 2.23 Unique aggregates announced to Internet: 185518 Total ASes present in the Internet Routing Table: 38980 Prefixes per ASN: 9.65 Origin-only ASes present in the Internet Routing Table: 32290 Origin ASes announcing only one prefix: 15494 Transit ASes present in the Internet Routing Table: 5213 Transit-only ASes present in the Internet Routing Table: 134 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1658 Unregistered ASNs in the Routing Table: 841 Number of 32-bit ASNs allocated by the RIRs: 1832 Number of 32-bit ASNs visible in the Routing Table: 1477 Prefixes from 32-bit ASNs in the Routing Table: 3383 Special use prefixes present in the Routing Table: 12 Prefixes being announced from unallocated address space: 95 Number of addresses announced to Internet: 2483550208 Equivalent to 148 /8s, 7 /16s and 248 /24s Percentage of available address space announced: 67.0 Percentage of allocated address space announced: 67.0 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.5 Total number of prefixes smaller than registry allocations: 157509 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 94479 Total APNIC prefixes after maximum aggregation: 30812 APNIC Deaggregation factor: 3.07 Prefixes being announced from the APNIC address blocks: 90937 Unique aggregates announced from the APNIC address blocks: 38010 APNIC Region origin ASes present in the Internet Routing Table: 4569 APNIC Prefixes per ASN: 19.90 APNIC Region origin ASes announcing only one prefix: 1249 APNIC Region transit ASes present in the Internet Routing Table: 702 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 90 Number of APNIC addresses announced to Internet: 628447584 Equivalent to 37 /8s, 117 /16s and 89 /24s Percentage of available APNIC address space announced: 79.7 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 132096-133119 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: 144302 Total ARIN prefixes after maximum aggregation: 74084 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 116427 Unique aggregates announced from the ARIN address blocks: 48007 ARIN Region origin ASes present in the Internet Routing Table: 14715 ARIN Prefixes per ASN: 7.91 ARIN Region origin ASes announcing only one prefix: 5670 ARIN Region transit ASes present in the Internet Routing Table: 1556 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 805354752 Equivalent to 48 /8s, 0 /16s and 189 /24s Percentage of available ARIN address space announced: 64.0 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: 90213 Total RIPE prefixes after maximum aggregation: 50506 RIPE Deaggregation factor: 1.79 Prefixes being announced from the RIPE address blocks: 82867 Unique aggregates announced from the RIPE address blocks: 54222 RIPE Region origin ASes present in the Internet Routing Table: 16019 RIPE Prefixes per ASN: 5.17 RIPE Region origin ASes announcing only one prefix: 7969 RIPE Region transit ASes present in the Internet Routing Table: 2499 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1043 Number of RIPE addresses announced to Internet: 490533248 Equivalent to 29 /8s, 60 /16s and 241 /24s Percentage of available RIPE address space announced: 79.0 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: 35060 Total LACNIC prefixes after maximum aggregation: 7852 LACNIC Deaggregation factor: 4.47 Prefixes being announced from the LACNIC address blocks: 34492 Unique aggregates announced from the LACNIC address blocks: 18093 LACNIC Region origin ASes present in the Internet Routing Table: 1532 LACNIC Prefixes per ASN: 22.51 LACNIC Region origin ASes announcing only one prefix: 451 LACNIC Region transit ASes present in the Internet Routing Table: 280 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 329 Number of LACNIC addresses announced to Internet: 90288768 Equivalent to 5 /8s, 97 /16s and 178 /24s Percentage of available LACNIC address space announced: 59.8 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: 8536 Total AfriNIC prefixes after maximum aggregation: 2003 AfriNIC Deaggregation factor: 4.26 Prefixes being announced from the AfriNIC address blocks: 6622 Unique aggregates announced from the AfriNIC address blocks: 1978 AfriNIC Region origin ASes present in the Internet Routing Table: 487 AfriNIC Prefixes per ASN: 13.60 AfriNIC Region origin ASes announcing only one prefix: 155 AfriNIC Region transit ASes present in the Internet Routing Table: 104 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 3 Number of AfriNIC addresses announced to Internet: 27800320 Equivalent to 1 /8s, 168 /16s and 51 /24s Percentage of available AfriNIC address space announced: 41.4 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 2493 11047 956 Korea Telecom (KIX) 17974 1963 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1607 303 84 TPG Internet Pty Ltd 4755 1543 638 176 TATA Communications formerly 7552 1394 1064 7 Vietel Corporation 24560 1180 345 206 Bharti Airtel Ltd., Telemedia 9829 1165 989 28 BSNL National Internet Backbo 9583 1087 80 503 Sify Limited 4808 1074 2096 303 CNCGROUP IP network: China169 18101 951 165 142 Reliance Infocom Ltd Internet 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 3553 3817 222 bellsouth.net, inc. 18566 1915 366 239 Covad Communications 7029 1897 1016 196 Windstream Communications Inc 1785 1830 680 121 PaeTec Communications, Inc. 4323 1626 1083 392 Time Warner Telecom 20115 1593 1541 636 Charter Communications 22773 1458 2907 100 Cox Communications, Inc. 19262 1394 4728 400 Verizon Global Networks 30036 1385 250 676 Mediacom Communications Corp 7018 1337 7049 875 AT&T WorldNet Services 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 8402 1412 352 13 Corbina telecom 6830 635 1890 410 UPC Distribution Services 34984 578 108 180 BILISIM TELEKOM 20940 543 183 417 Akamai Technologies European 3320 503 8169 385 Deutsche Telekom AG 12479 481 593 7 Uni2 Autonomous System 3292 480 2082 407 TDC Tele Danmark 8866 460 133 26 Bulgarian Telecommunication C 29049 424 31 55 AzerSat LLC. 8551 404 354 44 Bezeq International 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 1680 310 154 TVCABLE BOGOTA 8151 1411 2839 344 UniNet S.A. de C.V. 28573 1363 1013 79 NET Servicos de Comunicao S.A 7303 1163 683 175 Telecom Argentina Stet-France 14420 756 59 87 CORPORACION NACIONAL DE TELEC 22047 579 322 17 VTR PUNTO NET S.A. 6503 575 450 69 AVANTEL, S.A. 27947 575 71 83 Telconet S.A 3816 536 232 95 Empresa Nacional de Telecomun 11172 521 85 94 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 24863 814 146 36 LINKdotNET AS number 8452 723 445 11 TEDATA 15475 445 74 8 Nile Online 36992 298 415 19 Etisalat MISR 3741 278 938 230 The Internet Solution 15706 244 32 6 Sudatel Internet Exchange Aut 6713 242 519 14 Itissalat Al-MAGHRIB 12258 198 28 58 Vodacom Internet Company 33776 197 13 13 Starcomms Nigeria Limited 29571 192 17 11 Ci Telecom Autonomous system 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 3553 3817 222 bellsouth.net, inc. 4766 2493 11047 956 Korea Telecom (KIX) 17974 1963 519 33 PT TELEKOMUNIKASI INDONESIA 18566 1915 366 239 Covad Communications 7029 1897 1016 196 Windstream Communications Inc 1785 1830 680 121 PaeTec Communications, Inc. 10620 1680 310 154 TVCABLE BOGOTA 4323 1626 1083 392 Time Warner Telecom 7545 1607 303 84 TPG Internet Pty Ltd 20115 1593 1541 636 Charter Communications Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 17974 1963 1930 PT TELEKOMUNIKASI INDONESIA 1785 1830 1709 PaeTec Communications, Inc. 7029 1897 1701 Windstream Communications Inc 18566 1915 1676 Covad Communications 4766 2493 1537 Korea Telecom (KIX) 10620 1680 1526 TVCABLE BOGOTA 7545 1607 1523 TPG Internet Pty Ltd 8402 1412 1399 Corbina telecom 7552 1394 1387 Vietel Corporation 4755 1543 1367 TATA Communications formerly 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 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 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.8.0/22 47926 Lutsche.net Ltd 128.0.12.0/22 47926 Lutsche.net Ltd 128.0.80.0/24 30977 JSC "Yugra-Telecom" 128.0.81.0/24 30977 JSC "Yugra-Telecom" 128.0.82.0/24 30977 JSC "Yugra-Telecom" 128.0.83.0/24 30977 JSC "Yugra-Telecom" 128.0.84.0/24 30977 JSC "Yugra-Telecom" 128.0.85.0/24 30977 JSC "Yugra-Telecom" 128.0.86.0/24 30977 JSC "Yugra-Telecom" 128.0.87.0/24 30977 JSC "Yugra-Telecom" Complete listing at http://thyme.rand.apnic.net/current/data-dsua 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 41.222.79.0/24 36938 >>UNKNOWN<< 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 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 /9:12 /10:27 /11:82 /12:235 /13:464 /14:806 /15:1422 /16:12001 /17:5999 /18:10038 /19:19859 /20:27183 /21:27239 /22:36807 /23:34975 /24:195647 /25:1112 /26:1319 /27:725 /28:167 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2190 3553 bellsouth.net, inc. 18566 1871 1915 Covad Communications 7029 1589 1897 Windstream Communications Inc 10620 1575 1680 TVCABLE BOGOTA 8402 1389 1412 Corbina telecom 30036 1347 1385 Mediacom Communications Corp 11492 1115 1153 Cable One 1785 1055 1830 PaeTec Communications, Inc. 7011 1048 1167 Citizens Utilities 22773 947 1458 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:386 2:473 4:15 5:1 6:3 8:356 12:1951 13:1 14:533 15:11 16:3 17:7 20:10 23:54 24:1691 27:965 31:582 32:65 33:4 34:2 36:4 38:751 40:108 41:2639 42:48 44:3 46:998 47:3 49:264 50:436 52:13 55:5 56:2 57:37 58:882 59:491 60:365 61:1176 62:1088 63:1933 64:4047 65:2303 66:4014 67:1962 68:1106 69:3196 70:836 71:378 72:1849 74:2488 75:364 76:341 77:884 78:868 79:478 80:1128 81:840 82:497 83:504 84:624 85:1118 86:405 87:873 88:353 89:1601 90:269 91:4158 92:528 93:1374 94:1306 95:1028 96:437 97:280 98:899 99:37 101:210 103:342 106:70 107:61 108:54 109:1041 110:668 111:795 112:322 113:482 114:573 115:697 116:874 117:712 118:893 119:1232 120:338 121:692 122:1606 123:1020 124:1365 125:1381 128:253 129:175 130:166 131:584 132:112 133:21 134:214 135:54 136:213 137:139 138:288 139:125 140:496 141:292 142:387 143:420 144:493 145:63 146:472 147:215 148:636 149:266 150:151 151:193 152:447 153:179 154:7 155:386 156:207 157:329 158:151 159:467 160:320 161:206 162:337 163:179 164:513 165:367 166:537 167:434 168:744 169:145 170:864 171:86 172:1 173:1671 174:658 175:408 176:266 177:287 178:1053 180:1103 181:37 182:630 183:210 184:368 185:1 186:1513 187:670 188:928 189:858 190:5193 192:5911 193:5021 194:3528 195:3105 196:1241 197:186 198:3623 199:4142 200:5517 201:1646 202:8575 203:8489 204:4295 205:2364 206:2675 207:2822 208:4036 209:3452 210:2691 211:1457 212:2061 213:1779 214:793 215:90 216:4919 217:1601 218:560 219:339 220:1241 221:513 222:342 223:285 End of report