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 09 Jul, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 362786 Prefixes after maximum aggregation: 164929 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 180083 Total ASes present in the Internet Routing Table: 38135 Prefixes per ASN: 9.51 Origin-only ASes present in the Internet Routing Table: 31710 Origin ASes announcing only one prefix: 15248 Transit ASes present in the Internet Routing Table: 5186 Transit-only ASes present in the Internet Routing Table: 130 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: 925 Unregistered ASNs in the Routing Table: 512 Number of 32-bit ASNs allocated by the RIRs: 1533 Number of 32-bit ASNs visible in the Routing Table: 1239 Prefixes from 32-bit ASNs in the Routing Table: 2861 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 119 Number of addresses announced to Internet: 2493493440 Equivalent to 148 /8s, 159 /16s and 176 /24s Percentage of available address space announced: 67.3 Percentage of allocated address space announced: 67.3 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: 151395 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 90104 Total APNIC prefixes after maximum aggregation: 30260 APNIC Deaggregation factor: 2.98 Prefixes being announced from the APNIC address blocks: 86847 Unique aggregates announced from the APNIC address blocks: 37076 APNIC Region origin ASes present in the Internet Routing Table: 4503 APNIC Prefixes per ASN: 19.29 APNIC Region origin ASes announcing only one prefix: 1248 APNIC Region transit ASes present in the Internet Routing Table: 713 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 56 Number of APNIC addresses announced to Internet: 621479200 Equivalent to 37 /8s, 11 /16s and 5 /24s Percentage of available APNIC address space announced: 78.8 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: 141428 Total ARIN prefixes after maximum aggregation: 72827 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 113365 Unique aggregates announced from the ARIN address blocks: 46672 ARIN Region origin ASes present in the Internet Routing Table: 14469 ARIN Prefixes per ASN: 7.84 ARIN Region origin ASes announcing only one prefix: 5532 ARIN Region transit ASes present in the Internet Routing Table: 1522 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: 819612544 Equivalent to 48 /8s, 218 /16s and 75 /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: 86545 Total RIPE prefixes after maximum aggregation: 49132 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79935 Unique aggregates announced from the RIPE address blocks: 52845 RIPE Region origin ASes present in the Internet Routing Table: 15797 RIPE Prefixes per ASN: 5.06 RIPE Region origin ASes announcing only one prefix: 7877 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: 912 Number of RIPE addresses announced to Internet: 478890496 Equivalent to 28 /8s, 139 /16s and 74 /24s Percentage of available RIPE address space announced: 77.1 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: 33421 Total LACNIC prefixes after maximum aggregation: 7576 LACNIC Deaggregation factor: 4.41 Prefixes being announced from the LACNIC address blocks: 32551 Unique aggregates announced from the LACNIC address blocks: 16960 LACNIC Region origin ASes present in the Internet Routing Table: 1476 LACNIC Prefixes per ASN: 22.05 LACNIC Region origin ASes announcing only one prefix: 444 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: 254 Number of LACNIC addresses announced to Internet: 85900288 Equivalent to 5 /8s, 30 /16s and 188 /24s Percentage of available LACNIC address space announced: 56.9 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: 8211 Total AfriNIC prefixes after maximum aggregation: 1965 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 6500 Unique aggregates announced from the AfriNIC address blocks: 2004 AfriNIC Region origin ASes present in the Internet Routing Table: 470 AfriNIC Prefixes per ASN: 13.83 AfriNIC Region origin ASes announcing only one prefix: 147 AfriNIC Region transit ASes present in the Internet Routing Table: 102 Average AfriNIC Region AS path length visible: 4.9 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: 24334336 Equivalent to 1 /8s, 115 /16s and 80 /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 2436 11043 934 Korea Telecom (KIX) 17974 1787 461 41 PT TELEKOMUNIKASI INDONESIA 7545 1548 301 85 TPG Internet Pty Ltd 4755 1498 635 171 TATA Communications formerly 24560 1154 336 187 Bharti Airtel Ltd., Telemedia 9829 1101 922 46 BSNL National Internet Backbo 9583 1060 78 506 Sify Limited 4808 1047 2092 299 CNCGROUP IP network: China169 17488 964 186 105 Hathway IP Over Cable Interne 18101 931 116 140 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 3610 3819 244 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1806 681 122 PaeTec Communications, Inc. 4323 1656 1082 400 Time Warner Telecom 20115 1595 1533 634 Charter Communications 19262 1429 4778 392 Verizon Global Networks 7018 1366 7069 892 AT&T WorldNet Services 22773 1350 2897 88 Cox Communications, Inc. 6478 1346 251 618 AT&T Worldnet Services 7029 1287 791 301 Windstream Communications Inc 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 536 106 184 BILISIM TELEKOM 6830 512 1780 317 UPC Distribution Services 3292 466 2076 401 TDC Tele Danmark 20940 459 132 354 Akamai Technologies European 12479 453 593 7 Uni2 Autonomous System 8866 447 133 25 Bulgarian Telecommunication C 29049 441 33 45 AzerSat LLC. 3320 421 8151 368 Deutsche Telekom AG 8551 404 354 44 Bezeq International 3301 397 1855 346 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 1543 282 158 TVCABLE BOGOTA 8151 1432 2746 353 UniNet S.A. de C.V. 28573 1268 995 78 NET Servicos de Comunicao S.A 7303 1004 512 177 Telecom Argentina Stet-France 6503 747 354 74 AVANTEL, S.A. 14420 688 55 83 CORPORACION NACIONAL DE TELEC 22047 576 322 17 VTR PUNTO NET S.A. 3816 532 230 96 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 8452 797 445 11 TEDATA 24863 790 147 37 LINKdotNET AS number 15475 514 74 8 Nile Online 36992 315 415 14 Etisalat MISR 3741 260 937 222 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 227 13 5 Starcomms Nigeria Limited 24835 211 78 10 RAYA Telecom - Egypt 29571 158 17 11 Ci Telecom Autonomous system 16637 149 441 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 3610 3819 244 bellsouth.net, inc. 23456 2861 699 1535 32-bit ASN transition 4766 2436 11043 934 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 1785 1806 681 122 PaeTec Communications, Inc. 17974 1787 461 41 PT TELEKOMUNIKASI INDONESIA 4323 1656 1082 400 Time Warner Telecom 20115 1595 1533 634 Charter Communications 7545 1548 301 85 TPG Internet Pty Ltd 10620 1543 282 158 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 1787 1746 PT TELEKOMUNIKASI INDONESIA 1785 1806 1684 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2436 1502 Korea Telecom (KIX) 7545 1548 1463 TPG Internet Pty Ltd 10620 1543 1385 TVCABLE BOGOTA 4755 1498 1327 TATA Communications formerly 23456 2861 1326 32-bit ASN transition 22773 1350 1262 Cox Communications, Inc. 4323 1656 1256 Time Warner Telecom 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 41.222.79.0/24 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 /8:22 /9:12 /10:28 /11:81 /12:232 /13:468 /14:804 /15:1401 /16:11993 /17:5887 /18:9815 /19:19456 /20:25837 /21:26191 /22:34744 /23:33600 /24:188907 /25:1083 /26:1262 /27:735 /28:211 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2222 3610 bellsouth.net, inc. 18566 1869 1913 Covad Communications 10620 1438 1543 TVCABLE BOGOTA 23456 1406 2861 32-bit ASN transition 6478 1316 1346 AT&T Worldnet Services 11492 1096 1142 Cable One 7011 1054 1156 Citizens Utilities 1785 1053 1806 PaeTec Communications, Inc. 7029 1034 1287 Windstream Communications Inc 22773 864 1350 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:324 2:45 4:16 5:1 6:3 8:337 12:1976 13:1 14:481 15:15 16:3 17:5 20:10 23:13 24:1678 27:814 31:490 32:64 33:4 34:2 36:4 38:744 40:103 41:2564 42:32 44:3 46:1036 47:3 49:198 50:442 52:13 54:2 55:4 56:2 57:35 58:860 59:479 60:386 61:1180 62:1036 63:1935 64:3942 65:2294 66:3869 67:1897 68:1091 69:3040 70:758 71:389 72:1886 74:2389 75:316 76:341 77:888 78:712 79:461 80:1116 81:839 82:498 83:456 84:692 85:1073 86:554 87:759 88:335 89:1531 90:223 91:3946 92:533 93:1052 94:1334 95:855 96:446 97:256 98:891 99:37 101:77 103:115 106:10 107:21 108:70 109:1028 110:614 111:706 112:304 113:400 114:534 115:674 116:962 117:667 118:857 119:1161 120:312 121:675 122:1581 123:973 124:1304 125:1231 128:246 129:172 130:168 131:578 132:112 133:21 134:214 135:48 136:216 137:136 138:299 139:116 140:477 141:240 142:403 143:416 144:483 145:54 146:449 147:215 148:661 149:248 150:164 151:189 152:331 153:182 154:4 155:398 156:198 157:354 158:138 159:450 160:311 161:201 162:309 163:165 164:503 165:358 166:530 167:431 168:740 169:155 170:847 171:78 172:1 173:1642 174:610 175:379 176:141 177:163 178:988 180:880 181:23 182:488 183:204 184:342 185:1 186:1273 187:682 188:878 189:934 190:4949 192:5883 193:4968 194:3520 195:3032 196:1237 197:41 198:3573 199:3955 200:5534 201:1490 202:8396 203:8425 204:4215 205:2306 206:2677 207:2810 208:3965 209:3444 210:2681 211:1465 212:2097 213:1742 214:782 215:70 216:4937 217:1639 218:537 219:359 220:1189 221:492 222:357 223:185 End of report