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 23 Jul, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 364842 Prefixes after maximum aggregation: 165720 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 180824 Total ASes present in the Internet Routing Table: 38262 Prefixes per ASN: 9.54 Origin-only ASes present in the Internet Routing Table: 31794 Origin ASes announcing only one prefix: 15298 Transit ASes present in the Internet Routing Table: 5199 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 34 Max AS path prepend of ASN (22394) 31 Prefixes from unregistered ASNs in the Routing Table: 938 Unregistered ASNs in the Routing Table: 547 Number of 32-bit ASNs allocated by the RIRs: 1585 Number of 32-bit ASNs visible in the Routing Table: 1269 Prefixes from 32-bit ASNs in the Routing Table: 2925 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 119 Number of addresses announced to Internet: 2484169792 Equivalent to 148 /8s, 17 /16s and 108 /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: 91.1 Total number of prefixes smaller than registry allocations: 152116 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 91236 Total APNIC prefixes after maximum aggregation: 30391 APNIC Deaggregation factor: 3.00 Prefixes being announced from the APNIC address blocks: 87829 Unique aggregates announced from the APNIC address blocks: 37449 APNIC Region origin ASes present in the Internet Routing Table: 4523 APNIC Prefixes per ASN: 19.42 APNIC Region origin ASes announcing only one prefix: 1257 APNIC Region transit ASes present in the Internet Routing Table: 715 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: 62 Number of APNIC addresses announced to Internet: 622384672 Equivalent to 37 /8s, 24 /16s and 214 /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: 141810 Total ARIN prefixes after maximum aggregation: 73186 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 113679 Unique aggregates announced from the ARIN address blocks: 46646 ARIN Region origin ASes present in the Internet Routing Table: 14515 ARIN Prefixes per ASN: 7.83 ARIN Region origin ASes announcing only one prefix: 5568 ARIN Region transit ASes present in the Internet Routing Table: 1533 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 34 Number of ARIN region 32-bit ASNs visible in the Routing Table: 13 Number of ARIN addresses announced to Internet: 802761344 Equivalent to 47 /8s, 217 /16s and 42 /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: 86532 Total RIPE prefixes after maximum aggregation: 49288 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79915 Unique aggregates announced from the RIPE address blocks: 52946 RIPE Region origin ASes present in the Internet Routing Table: 15807 RIPE Prefixes per ASN: 5.06 RIPE Region origin ASes announcing only one prefix: 7879 RIPE Region transit ASes present in the Internet Routing Table: 2501 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: 920 Number of RIPE addresses announced to Internet: 483952000 Equivalent to 28 /8s, 216 /16s and 133 /24s Percentage of available RIPE address space announced: 78.0 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: 33807 Total LACNIC prefixes after maximum aggregation: 7644 LACNIC Deaggregation factor: 4.42 Prefixes being announced from the LACNIC address blocks: 32925 Unique aggregates announced from the LACNIC address blocks: 17088 LACNIC Region origin ASes present in the Internet Routing Table: 1487 LACNIC Prefixes per ASN: 22.14 LACNIC Region origin ASes announcing only one prefix: 442 LACNIC Region transit ASes present in the Internet Routing Table: 275 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: 270 Number of LACNIC addresses announced to Internet: 86429952 Equivalent to 5 /8s, 38 /16s and 209 /24s Percentage of available LACNIC address space announced: 57.2 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: 8356 Total AfriNIC prefixes after maximum aggregation: 1975 AfriNIC Deaggregation factor: 4.23 Prefixes being announced from the AfriNIC address blocks: 6537 Unique aggregates announced from the AfriNIC address blocks: 1997 AfriNIC Region origin ASes present in the Internet Routing Table: 475 AfriNIC Prefixes per ASN: 13.76 AfriNIC Region origin ASes announcing only one prefix: 152 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: 24441856 Equivalent to 1 /8s, 116 /16s and 244 /24s Percentage of available AfriNIC address space announced: 36.4 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 2470 11044 938 Korea Telecom (KIX) 17974 1794 508 32 PT TELEKOMUNIKASI INDONESIA 7545 1555 301 85 TPG Internet Pty Ltd 4755 1507 635 171 TATA Communications formerly 7552 1298 1064 7 Vietel Corporation 24560 1156 336 187 Bharti Airtel Ltd., Telemedia 9829 1108 923 47 BSNL National Internet Backbo 9583 1079 81 520 Sify Limited 4808 1051 2092 299 CNCGROUP IP network: China169 17488 967 187 107 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 3616 3818 238 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1811 681 122 PaeTec Communications, Inc. 4323 1615 1082 401 Time Warner Telecom 20115 1590 1538 623 Charter Communications 19262 1411 4760 391 Verizon Global Networks 7018 1364 7069 891 AT&T WorldNet Services 22773 1353 2897 89 Cox Communications, Inc. 7029 1293 791 304 Windstream Communications Inc 2386 1258 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 534 106 185 BILISIM TELEKOM 6830 512 1788 316 UPC Distribution Services 3292 468 2078 403 TDC Tele Danmark 20940 459 132 354 Akamai Technologies European 12479 455 593 7 Uni2 Autonomous System 8866 453 133 26 Bulgarian Telecommunication C 29049 432 32 47 AzerSat LLC. 3320 424 8151 370 Deutsche Telekom AG 8551 403 354 44 Bezeq International 702 397 1802 310 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 1559 287 163 TVCABLE BOGOTA 8151 1420 2746 351 UniNet S.A. de C.V. 28573 1277 995 78 NET Servicos de Comunicao S.A 7303 1009 513 178 Telecom Argentina Stet-France 6503 750 354 74 AVANTEL, S.A. 14420 700 56 85 CORPORACION NACIONAL DE TELEC 22047 578 322 17 VTR PUNTO NET S.A. 3816 532 232 97 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 509 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 817 445 11 TEDATA 24863 794 147 42 LINKdotNET AS number 15475 512 74 8 Nile Online 36992 315 415 15 Etisalat MISR 24835 304 78 10 RAYA Telecom - Egypt 3741 265 937 226 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 226 13 5 Starcomms Nigeria Limited 15706 158 32 6 Sudatel Internet Exchange Aut 29571 158 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 3616 3818 238 bellsouth.net, inc. 23456 2925 710 1575 32-bit ASN transition 4766 2470 11044 938 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 1785 1811 681 122 PaeTec Communications, Inc. 17974 1794 508 32 PT TELEKOMUNIKASI INDONESIA 4323 1615 1082 401 Time Warner Telecom 20115 1590 1538 623 Charter Communications 10620 1559 287 163 TVCABLE BOGOTA 7545 1555 301 85 TPG Internet Pty Ltd 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 1794 1762 PT TELEKOMUNIKASI INDONESIA 1785 1811 1689 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2470 1532 Korea Telecom (KIX) 7545 1555 1470 TPG Internet Pty Ltd 10620 1559 1396 TVCABLE BOGOTA 23456 2925 1350 32-bit ASN transition 4755 1507 1336 TATA Communications formerly 7552 1298 1291 Vietel Corporation 22773 1353 1264 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 41.222.79.0/24 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 /8:20 /9:12 /10:27 /11:80 /12:232 /13:465 /14:798 /15:1400 /16:12040 /17:5888 /18:9829 /19:19533 /20:26166 /21:26261 /22:34965 /23:33886 /24:189915 /25:1093 /26:1269 /27:739 /28:207 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2236 3616 bellsouth.net, inc. 18566 1869 1913 Covad Communications 10620 1454 1559 TVCABLE BOGOTA 23456 1446 2925 32-bit ASN transition 11492 1096 1142 Cable One 7011 1056 1158 Citizens Utilities 1785 1054 1811 PaeTec Communications, Inc. 7029 1040 1293 Windstream Communications Inc 6478 997 1025 AT&T Worldnet Services 22773 868 1353 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:331 2:45 4:16 5:1 6:3 8:340 12:1965 13:1 14:490 15:15 16:3 17:5 20:10 23:14 24:1680 27:842 31:504 32:64 33:4 34:2 36:4 38:730 40:104 41:2603 42:35 44:3 46:1043 47:3 49:198 50:383 52:13 54:2 55:7 56:2 57:35 58:860 59:481 60:385 61:1181 62:1033 63:1932 64:3990 65:2299 66:3882 67:1886 68:1109 69:3060 70:778 71:373 72:1865 74:2431 75:333 76:341 77:881 78:704 79:463 80:1114 81:839 82:497 83:465 84:691 85:1057 86:519 87:764 88:333 89:1533 90:224 91:3957 92:526 93:1054 94:1338 95:859 96:419 97:263 98:891 99:37 101:77 103:140 106:73 107:24 108:73 109:1022 110:612 111:714 112:305 113:413 114:555 115:683 116:984 117:690 118:863 119:1174 120:315 121:676 122:1607 123:976 124:1304 125:1279 128:246 129:171 130:169 131:578 132:113 133:21 134:214 135:52 136:215 137:138 138:300 139:116 140:477 141:253 142:403 143:414 144:478 145:54 146:454 147:216 148:672 149:249 150:159 151:189 152:338 153:182 154:5 155:397 156:199 157:351 158:140 159:455 160:315 161:203 162:310 163:166 164:506 165:367 166:531 167:433 168:740 169:153 170:849 171:80 172:1 173:1619 174:628 175:384 176:143 177:170 178:1005 180:907 181:23 182:508 183:234 184:345 185:1 186:1308 187:776 188:896 189:946 190:5000 192:5913 193:4972 194:3517 195:3018 196:1291 197:42 198:3573 199:3977 200:5573 201:1473 202:8416 203:8448 204:4229 205:2331 206:2669 207:2808 208:3989 209:3434 210:2680 211:1452 212:2087 213:1743 214:769 215:70 216:4951 217:1650 218:545 219:348 220:1201 221:495 222:360 223:220 End of report