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 18 Jun, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 360387 Prefixes after maximum aggregation: 163564 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 178868 Total ASes present in the Internet Routing Table: 37921 Prefixes per ASN: 9.50 Origin-only ASes present in the Internet Routing Table: 31627 Origin ASes announcing only one prefix: 15197 Transit ASes present in the Internet Routing Table: 5136 Transit-only ASes present in the Internet Routing Table: 131 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 818 Unregistered ASNs in the Routing Table: 441 Number of 32-bit ASNs allocated by the RIRs: 1463 Number of 32-bit ASNs visible in the Routing Table: 1158 Prefixes from 32-bit ASNs in the Routing Table: 2676 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 141 Number of addresses announced to Internet: 2488807488 Equivalent to 148 /8s, 88 /16s and 48 /24s Percentage of available address space announced: 67.1 Percentage of allocated address space announced: 67.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.0 Total number of prefixes smaller than registry allocations: 150087 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 89629 Total APNIC prefixes after maximum aggregation: 30149 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 86121 Unique aggregates announced from the APNIC address blocks: 36875 APNIC Region origin ASes present in the Internet Routing Table: 4482 APNIC Prefixes per ASN: 19.21 APNIC Region origin ASes announcing only one prefix: 1246 APNIC Region transit ASes present in the Internet Routing Table: 706 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: 46 Number of APNIC addresses announced to Internet: 620285216 Equivalent to 36 /8s, 248 /16s and 205 /24s Percentage of available APNIC address space announced: 78.7 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: 140967 Total ARIN prefixes after maximum aggregation: 72104 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 112897 Unique aggregates announced from the ARIN address blocks: 46236 ARIN Region origin ASes present in the Internet Routing Table: 14446 ARIN Prefixes per ASN: 7.82 ARIN Region origin ASes announcing only one prefix: 5520 ARIN Region transit ASes present in the Internet Routing Table: 1524 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 818669312 Equivalent to 48 /8s, 203 /16s and 231 /24s Percentage of available ARIN address space announced: 65.1 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, 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: 85734 Total RIPE prefixes after maximum aggregation: 48818 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79180 Unique aggregates announced from the RIPE address blocks: 52437 RIPE Region origin ASes present in the Internet Routing Table: 15722 RIPE Prefixes per ASN: 5.04 RIPE Region origin ASes announcing only one prefix: 7850 RIPE Region transit ASes present in the Internet Routing Table: 2477 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: 855 Number of RIPE addresses announced to Internet: 477374720 Equivalent to 28 /8s, 116 /16s and 41 /24s Percentage of available RIPE address space announced: 76.9 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: 33067 Total LACNIC prefixes after maximum aggregation: 7539 LACNIC Deaggregation factor: 4.39 Prefixes being announced from the LACNIC address blocks: 32170 Unique aggregates announced from the LACNIC address blocks: 16905 LACNIC Region origin ASes present in the Internet Routing Table: 1468 LACNIC Prefixes per ASN: 21.91 LACNIC Region origin ASes announcing only one prefix: 438 LACNIC Region transit ASes present in the Internet Routing Table: 262 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 21 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 241 Number of LACNIC addresses announced to Internet: 84924928 Equivalent to 5 /8s, 15 /16s and 218 /24s Percentage of available LACNIC address space announced: 56.2 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: 8091 Total AfriNIC prefixes after maximum aggregation: 1965 AfriNIC Deaggregation factor: 4.12 Prefixes being announced from the AfriNIC address blocks: 6390 Unique aggregates announced from the AfriNIC address blocks: 1967 AfriNIC Region origin ASes present in the Internet Routing Table: 465 AfriNIC Prefixes per ASN: 13.74 AfriNIC Region origin ASes announcing only one prefix: 143 AfriNIC Region transit ASes present in the Internet Routing Table: 101 Average AfriNIC Region AS path length visible: 4.8 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: 24250368 Equivalent to 1 /8s, 114 /16s and 8 /24s Percentage of available AfriNIC address space announced: 36.1 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 2457 9500 924 Korea Telecom (KIX) 17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA 7545 1538 301 85 TPG Internet Pty Ltd 4755 1478 634 168 TATA Communications formerly 24560 1153 336 187 Bharti Airtel Ltd., Telemedia 7552 1143 1064 7 Vietel Corporation 9583 1079 80 510 Sify Limited 4808 1048 2090 300 CNCGROUP IP network: China169 9829 1042 879 56 BSNL National Internet Backbo 17488 950 190 101 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 3629 3819 250 bellsouth.net, inc. 18566 1913 365 237 Covad Communications 1785 1796 681 122 PaeTec Communications, Inc. 4323 1660 1081 397 Time Warner Telecom 6478 1634 296 275 AT&T Worldnet Services 20115 1522 1526 640 Charter Communications 19262 1493 4936 308 Verizon Global Networks 7018 1363 7054 889 AT&T WorldNet Services 22773 1338 2897 85 Cox Communications, Inc. 7029 1312 790 297 Alltel Information 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 34984 524 107 182 BILISIM TELEKOM 6830 513 1780 320 UPC Distribution Services 3292 466 2078 401 TDC Tele Danmark 20940 462 135 354 Akamai Technologies European 29049 449 33 46 AzerSat LLC. 8866 445 134 26 Bulgarian Telecommunication C 12479 434 593 7 Uni2 Autonomous System 3320 420 8151 367 Deutsche Telekom AG 8551 404 354 44 Bezeq International 3301 398 1839 347 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 1522 278 155 TVCABLE BOGOTA 28573 1279 993 78 NET Servicos de Comunicao S.A 8151 1269 2729 363 UniNet S.A. de C.V. 7303 990 506 170 Telecom Argentina Stet-France 6503 741 354 73 AVANTEL, S.A. 14420 683 55 82 CORPORACION NACIONAL DE TELEC 22047 572 322 17 VTR PUNTO NET S.A. 3816 532 231 95 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 499 53 52 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 37 LINKdotNET AS number 8452 763 445 11 TEDATA 15475 526 74 8 Nile Online 36992 304 415 14 Etisalat MISR 3741 265 937 226 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 215 12 11 Starcomms Nigeria Limited 24835 211 78 10 RAYA Telecom - Egypt 29571 192 17 11 Ci Telecom Autonomous system 16637 150 441 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 3629 3819 250 bellsouth.net, inc. 23456 2676 661 1448 32-bit ASN transition 4766 2457 9500 924 Korea Telecom (KIX) 18566 1913 365 237 Covad Communications 17974 1879 465 43 PT TELEKOMUNIKASI INDONESIA 1785 1796 681 122 PaeTec Communications, Inc. 4323 1660 1081 397 Time Warner Telecom 6478 1634 296 275 AT&T Worldnet Services 7545 1538 301 85 TPG Internet Pty Ltd 10620 1522 278 155 TVCABLE BOGOTA 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 1879 1836 PT TELEKOMUNIKASI INDONESIA 18566 1913 1676 Covad Communications 1785 1796 1674 PaeTec Communications, Inc. 4766 2457 1533 Korea Telecom (KIX) 7545 1538 1453 TPG Internet Pty Ltd 10620 1522 1367 TVCABLE BOGOTA 6478 1634 1359 AT&T Worldnet Services 4755 1478 1310 TATA Communications formerly 4323 1660 1263 Time Warner Telecom 22773 1338 1253 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 27.0.128.0/17 7514 Media Exchange, Inc. 31.132.8.0/21 15478 White Market Media SRL 31.132.32.0/20 15478 White Market Media SRL 41.190.32.0/23 31856 CABSAS 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 /8:22 /9:12 /10:28 /11:81 /12:231 /13:462 /14:801 /15:1394 /16:11951 /17:5841 /18:9796 /19:19380 /20:26032 /21:26006 /22:34385 /23:33300 /24:187515 /25:1093 /26:1270 /27:729 /28:41 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2232 3629 bellsouth.net, inc. 18566 1870 1913 Covad Communications 6478 1597 1634 AT&T Worldnet Services 10620 1412 1522 TVCABLE BOGOTA 23456 1328 2676 32-bit ASN transition 11492 1090 1136 Cable One 7011 1059 1159 Citizens Utilities 7029 1059 1312 Alltel Information Services, 1785 1050 1796 PaeTec Communications, Inc. 22773 856 1338 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:286 2:43 4:16 5:1 6:3 8:335 12:1973 13:1 14:464 15:15 16:3 17:8 20:10 23:11 24:1653 27:790 31:444 32:64 33:4 34:2 37:1 38:734 40:103 41:2508 42:2 44:3 46:976 47:3 49:188 50:409 52:13 54:2 55:4 56:2 57:32 58:845 59:472 60:387 61:1181 62:1050 63:1935 64:3944 65:2271 66:3860 67:1889 68:1089 69:3026 70:723 71:376 72:1886 74:2377 75:319 76:339 77:881 78:707 79:460 80:1113 81:846 82:493 83:461 84:667 85:1082 86:581 87:757 88:333 89:1530 90:208 91:3855 92:530 93:1049 94:1294 95:838 96:445 97:249 98:879 99:36 101:70 103:79 106:7 107:14 108:71 109:1006 110:606 111:709 112:303 113:399 114:540 115:668 116:962 117:677 118:826 119:1145 120:312 121:669 122:1628 123:941 124:1267 125:1235 128:247 129:174 130:165 131:578 132:111 133:21 134:214 135:48 136:216 137:138 138:300 139:113 140:480 141:238 142:403 143:413 144:489 145:54 146:451 147:211 148:610 149:247 150:171 151:190 152:332 153:180 154:4 155:398 156:195 157:352 158:138 159:389 160:319 161:208 162:313 163:162 164:500 165:352 166:532 167:423 168:740 169:156 170:838 171:77 172:1 173:1621 174:602 175:362 176:135 177:160 178:1000 180:892 181:19 182:476 183:220 184:302 185:1 186:1241 187:731 188:857 189:907 190:4898 192:5856 193:4956 194:3492 195:3032 196:1221 197:24 198:3596 199:3945 200:5542 201:1501 202:8319 203:8407 204:4188 205:2348 206:2686 207:2815 208:3927 209:3463 210:2689 211:1424 212:2006 213:1726 214:773 215:69 216:4933 217:1643 218:545 219:365 220:1202 221:491 222:354 223:159 End of report