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 10 Sep, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 370301 Prefixes after maximum aggregation: 167415 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 183735 Total ASes present in the Internet Routing Table: 38737 Prefixes per ASN: 9.56 Origin-only ASes present in the Internet Routing Table: 32130 Origin ASes announcing only one prefix: 15446 Transit ASes present in the Internet Routing Table: 5210 Transit-only ASes present in the Internet Routing Table: 140 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (22394) 33 Prefixes from unregistered ASNs in the Routing Table: 1208 Unregistered ASNs in the Routing Table: 697 Number of 32-bit ASNs allocated by the RIRs: 1711 Number of 32-bit ASNs visible in the Routing Table: 1397 Prefixes from 32-bit ASNs in the Routing Table: 3204 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 101 Number of addresses announced to Internet: 2475335424 Equivalent to 147 /8s, 138 /16s and 159 /24s Percentage of available address space announced: 66.8 Percentage of allocated address space announced: 66.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.2 Total number of prefixes smaller than registry allocations: 154300 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 93207 Total APNIC prefixes after maximum aggregation: 30608 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 89751 Unique aggregates announced from the APNIC address blocks: 38014 APNIC Region origin ASes present in the Internet Routing Table: 4545 APNIC Prefixes per ASN: 19.75 APNIC Region origin ASes announcing only one prefix: 1250 APNIC Region transit ASes present in the Internet Routing Table: 709 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: 83 Number of APNIC addresses announced to Internet: 626012512 Equivalent to 37 /8s, 80 /16s and 49 /24s Percentage of available APNIC address space announced: 79.4 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: 143092 Total ARIN prefixes after maximum aggregation: 73464 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 114937 Unique aggregates announced from the ARIN address blocks: 47325 ARIN Region origin ASes present in the Internet Routing Table: 14645 ARIN Prefixes per ASN: 7.85 ARIN Region origin ASes announcing only one prefix: 5639 ARIN Region transit ASes present in the Internet Routing Table: 1554 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 36 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804788864 Equivalent to 47 /8s, 248 /16s and 26 /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: 87865 Total RIPE prefixes after maximum aggregation: 49993 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 80959 Unique aggregates announced from the RIPE address blocks: 53843 RIPE Region origin ASes present in the Internet Routing Table: 15959 RIPE Prefixes per ASN: 5.07 RIPE Region origin ASes announcing only one prefix: 7952 RIPE Region transit ASes present in the Internet Routing Table: 2496 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: 993 Number of RIPE addresses announced to Internet: 488762880 Equivalent to 29 /8s, 33 /16s and 238 /24s Percentage of available RIPE address space announced: 78.7 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: 34454 Total LACNIC prefixes after maximum aggregation: 7761 LACNIC Deaggregation factor: 4.44 Prefixes being announced from the LACNIC address blocks: 33754 Unique aggregates announced from the LACNIC address blocks: 17669 LACNIC Region origin ASes present in the Internet Routing Table: 1522 LACNIC Prefixes per ASN: 22.18 LACNIC Region origin ASes announcing only one prefix: 452 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: 305 Number of LACNIC addresses announced to Internet: 88542336 Equivalent to 5 /8s, 71 /16s and 12 /24s Percentage of available LACNIC address space announced: 58.6 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: 8314 Total AfriNIC prefixes after maximum aggregation: 2024 AfriNIC Deaggregation factor: 4.11 Prefixes being announced from the AfriNIC address blocks: 6408 Unique aggregates announced from the AfriNIC address blocks: 1991 AfriNIC Region origin ASes present in the Internet Routing Table: 480 AfriNIC Prefixes per ASN: 13.35 AfriNIC Region origin ASes announcing only one prefix: 153 AfriNIC Region transit ASes present in the Internet Routing Table: 104 Average AfriNIC Region AS path length visible: 4.7 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 4 Number of AfriNIC addresses announced to Internet: 27297024 Equivalent to 1 /8s, 160 /16s and 133 /24s Percentage of available AfriNIC address space announced: 40.7 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 2508 11047 955 Korea Telecom (KIX) 17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA 7545 1581 301 83 TPG Internet Pty Ltd 4755 1550 635 170 TATA Communications formerly 24560 1176 336 192 Bharti Airtel Ltd., Telemedia 9829 1152 989 28 BSNL National Internet Backbo 9583 1079 80 503 Sify Limited 4808 1077 2093 308 CNCGROUP IP network: China169 7552 1050 1062 11 Vietel Corporation 17488 982 192 158 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 3564 3817 226 bellsouth.net, inc. 18566 1912 364 237 Covad Communications 1785 1822 680 122 PaeTec Communications, Inc. 4323 1626 1085 395 Time Warner Telecom 20115 1591 1540 634 Charter Communications 7029 1483 995 231 Windstream Communications Inc 22773 1450 2906 99 Cox Communications, Inc. 19262 1394 4724 399 Verizon Global Networks 7018 1333 7050 874 AT&T WorldNet Services 30036 1327 244 687 Mediacom Communications Corp 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 544 107 178 BILISIM TELEKOM 6830 526 1811 322 UPC Distribution Services 20940 500 154 388 Akamai Technologies European 3292 471 2079 405 TDC Tele Danmark 12479 468 594 8 Uni2 Autonomous System 8866 460 133 26 Bulgarian Telecommunication C 3320 431 8152 375 Deutsche Telekom AG 29049 424 31 55 AzerSat LLC. 8402 406 352 13 Corbina telecom 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 1661 305 161 TVCABLE BOGOTA 8151 1409 2802 354 UniNet S.A. de C.V. 28573 1302 1003 71 NET Servicos de Comunicao S.A 7303 1051 578 166 Telecom Argentina Stet-France 14420 715 57 88 CORPORACION NACIONAL DE TELEC 6503 582 450 68 AVANTEL, S.A. 22047 579 322 17 VTR PUNTO NET S.A. 27947 565 55 82 Telconet S.A 3816 535 232 98 Empresa Nacional de Telecomun 7738 515 986 31 Telecomunicacoes da Bahia 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 812 147 43 LINKdotNET AS number 8452 596 440 15 TEDATA 15475 512 74 8 Nile Online 36992 300 415 14 Etisalat MISR 3741 267 938 228 The Internet Solution 6713 242 519 14 Itissalat Al-MAGHRIB 15706 219 32 6 Sudatel Internet Exchange Aut 33776 204 13 14 Starcomms Nigeria Limited 12258 193 28 62 Vodacom Internet Company 29571 191 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 3564 3817 226 bellsouth.net, inc. 23456 3204 762 1739 32-bit ASN transition 4766 2508 11047 955 Korea Telecom (KIX) 17974 1985 516 31 PT TELEKOMUNIKASI INDONESIA 18566 1912 364 237 Covad Communications 1785 1822 680 122 PaeTec Communications, Inc. 10620 1661 305 161 TVCABLE BOGOTA 4323 1626 1085 395 Time Warner Telecom 20115 1591 1540 634 Charter Communications 7545 1581 301 83 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 1985 1954 PT TELEKOMUNIKASI INDONESIA 1785 1822 1700 PaeTec Communications, Inc. 18566 1912 1675 Covad Communications 4766 2508 1553 Korea Telecom (KIX) 10620 1661 1500 TVCABLE BOGOTA 7545 1581 1498 TPG Internet Pty Ltd 23456 3204 1465 32-bit ASN transition 4755 1550 1380 TATA Communications formerly 22773 1450 1351 Cox Communications, Inc. 7029 1483 1252 Windstream 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<< 46.18.104.0/21 23456 32-bit ASN transition 62.61.220.0/24 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 /11:81 /12:234 /13:463 /14:798 /15:1411 /16:11956 /17:5953 /18:9998 /19:19711 /20:26697 /21:26880 /22:35996 /23:34665 /24:192096 /25:1106 /26:1287 /27:739 /28:163 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2201 3564 bellsouth.net, inc. 18566 1868 1912 Covad Communications 10620 1556 1661 TVCABLE BOGOTA 23456 1549 3204 32-bit ASN transition 30036 1290 1327 Mediacom Communications Corp 7029 1211 1483 Windstream Communications Inc 11492 1110 1156 Cable One 7011 1058 1183 Citizens Utilities 1785 1052 1822 PaeTec Communications, Inc. 22773 940 1450 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:365 2:50 4:15 5:1 6:3 8:349 12:1949 13:1 14:523 15:13 16:3 17:5 20:10 23:31 24:1669 27:919 31:516 32:64 33:3 34:2 36:4 38:737 40:107 41:2430 42:40 44:3 46:980 47:3 49:236 50:412 52:13 54:2 55:6 56:2 57:34 58:868 59:495 60:376 61:1172 62:1085 63:1940 64:4021 65:2306 66:3933 67:1933 68:1116 69:3168 70:783 71:377 72:1855 74:2432 75:325 76:339 77:870 78:667 79:455 80:1108 81:843 82:504 83:491 84:686 85:1091 86:412 87:862 88:345 89:1537 90:232 91:4073 92:524 93:1129 94:1339 95:799 96:424 97:272 98:913 99:37 101:202 103:266 106:71 107:43 108:76 109:1015 110:666 111:745 112:319 113:439 114:563 115:707 116:911 117:678 118:883 119:1199 120:334 121:687 122:1580 123:1006 124:1339 125:1353 128:248 129:181 130:166 131:581 132:119 133:21 134:215 135:52 136:212 137:134 138:293 139:109 140:493 141:289 142:389 143:415 144:488 145:61 146:466 147:228 148:635 149:250 150:153 151:189 152:444 153:179 154:6 155:393 156:201 157:354 158:143 159:456 160:320 161:207 162:335 163:174 164:513 165:370 166:536 167:432 168:746 169:146 170:844 171:84 172:1 173:1644 174:631 175:390 176:167 177:246 178:1007 180:1018 181:25 182:608 183:233 184:352 185:1 186:1412 187:672 188:940 189:869 190:5141 192:5913 193:5000 194:3524 195:3029 196:1231 197:147 198:3590 199:4108 200:5511 201:1635 202:8503 203:8514 204:4242 205:2339 206:2675 207:2819 208:4009 209:3441 210:2672 211:1465 212:2092 213:1762 214:772 215:76 216:4837 217:1598 218:549 219:345 220:1226 221:515 222:352 223:259 End of report