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 25 Jun, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 361681 Prefixes after maximum aggregation: 164222 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 178750 Total ASes present in the Internet Routing Table: 37989 Prefixes per ASN: 9.52 Origin-only ASes present in the Internet Routing Table: 31644 Origin ASes announcing only one prefix: 15205 Transit ASes present in the Internet Routing Table: 5162 Transit-only ASes present in the Internet Routing Table: 136 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: 849 Unregistered ASNs in the Routing Table: 461 Number of 32-bit ASNs allocated by the RIRs: 1493 Number of 32-bit ASNs visible in the Routing Table: 1183 Prefixes from 32-bit ASNs in the Routing Table: 2711 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 137 Number of addresses announced to Internet: 2493130048 Equivalent to 148 /8s, 154 /16s and 37 /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: 150698 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 89840 Total APNIC prefixes after maximum aggregation: 30209 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 86590 Unique aggregates announced from the APNIC address blocks: 36226 APNIC Region origin ASes present in the Internet Routing Table: 4497 APNIC Prefixes per ASN: 19.26 APNIC Region origin ASes announcing only one prefix: 1249 APNIC Region transit ASes present in the Internet Routing Table: 712 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: 52 Number of APNIC addresses announced to Internet: 622748704 Equivalent to 37 /8s, 30 /16s and 100 /24s Percentage of available APNIC address space announced: 79.0 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: 141304 Total ARIN prefixes after maximum aggregation: 72518 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 113252 Unique aggregates announced from the ARIN address blocks: 46525 ARIN Region origin ASes present in the Internet Routing Table: 14441 ARIN Prefixes per ASN: 7.84 ARIN Region origin ASes announcing only one prefix: 5515 ARIN Region transit ASes present in the Internet Routing Table: 1518 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: 819201536 Equivalent to 48 /8s, 212 /16s and 6 /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: 86138 Total RIPE prefixes after maximum aggregation: 48944 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79529 Unique aggregates announced from the RIPE address blocks: 52628 RIPE Region origin ASes present in the Internet Routing Table: 15751 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 7864 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: 870 Number of RIPE addresses announced to Internet: 478213376 Equivalent to 28 /8s, 128 /16s and 245 /24s Percentage of available RIPE address space announced: 77.0 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: 33273 Total LACNIC prefixes after maximum aggregation: 7572 LACNIC Deaggregation factor: 4.39 Prefixes being announced from the LACNIC address blocks: 32313 Unique aggregates announced from the LACNIC address blocks: 16912 LACNIC Region origin ASes present in the Internet Routing Table: 1471 LACNIC Prefixes per ASN: 21.97 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 264 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: 245 Number of LACNIC addresses announced to Internet: 85595904 Equivalent to 5 /8s, 26 /16s and 23 /24s Percentage of available LACNIC address space announced: 56.7 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: 8197 Total AfriNIC prefixes after maximum aggregation: 1952 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 6495 Unique aggregates announced from the AfriNIC address blocks: 1981 AfriNIC Region origin ASes present in the Internet Routing Table: 459 AfriNIC Prefixes per ASN: 14.15 AfriNIC Region origin ASes announcing only one prefix: 138 AfriNIC Region transit ASes present in the Internet Routing Table: 102 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: 24303616 Equivalent to 1 /8s, 114 /16s and 216 /24s Percentage of available AfriNIC address space announced: 36.2 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 2458 9500 928 Korea Telecom (KIX) 17974 1842 460 45 PT TELEKOMUNIKASI INDONESIA 7545 1542 301 84 TPG Internet Pty Ltd 4755 1479 634 168 TATA Communications formerly 24560 1153 336 187 Bharti Airtel Ltd., Telemedia 9583 1079 80 510 Sify Limited 4808 1051 2092 302 CNCGROUP IP network: China169 9829 1043 886 64 BSNL National Internet Backbo 17488 957 183 104 Hathway IP Over Cable Interne 18101 931 116 138 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 3629 3819 249 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1797 681 122 PaeTec Communications, Inc. 4323 1661 1081 398 Time Warner Telecom 20115 1586 1531 635 Charter Communications 6478 1499 276 522 AT&T Worldnet Services 19262 1451 4805 372 Verizon Global Networks 7018 1358 7053 892 AT&T WorldNet Services 22773 1346 2897 87 Cox Communications, Inc. 7029 1309 790 298 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 530 107 183 BILISIM TELEKOM 6830 515 1780 320 UPC Distribution Services 3292 469 2080 404 TDC Tele Danmark 20940 467 137 359 Akamai Technologies European 8866 445 134 26 Bulgarian Telecommunication C 29049 444 33 45 AzerSat LLC. 12479 437 593 7 Uni2 Autonomous System 3320 420 8151 367 Deutsche Telekom AG 8551 404 354 44 Bezeq International 3301 396 1839 345 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 1532 281 157 TVCABLE BOGOTA 8151 1422 2736 358 UniNet S.A. de C.V. 28573 1264 993 78 NET Servicos de Comunicao S.A 7303 993 507 171 Telecom Argentina Stet-France 6503 741 354 74 AVANTEL, S.A. 14420 683 55 82 CORPORACION NACIONAL DE TELEC 22047 576 322 17 VTR PUNTO NET S.A. 3816 531 231 94 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 500 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 798 147 37 LINKdotNET AS number 8452 791 445 11 TEDATA 15475 525 74 8 Nile Online 36992 318 415 14 Etisalat MISR 3741 261 937 223 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 216 12 11 Starcomms Nigeria Limited 24835 211 78 10 RAYA Telecom - Egypt 29571 192 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 3629 3819 249 bellsouth.net, inc. 23456 2711 657 1466 32-bit ASN transition 4766 2458 9500 928 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 17974 1842 460 45 PT TELEKOMUNIKASI INDONESIA 1785 1797 681 122 PaeTec Communications, Inc. 4323 1661 1081 398 Time Warner Telecom 20115 1586 1531 635 Charter Communications 7545 1542 301 84 TPG Internet Pty Ltd 10620 1532 281 157 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 1842 1797 PT TELEKOMUNIKASI INDONESIA 1785 1797 1675 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2458 1530 Korea Telecom (KIX) 7545 1542 1458 TPG Internet Pty Ltd 10620 1532 1375 TVCABLE BOGOTA 4755 1479 1311 TATA Communications formerly 4323 1661 1263 Time Warner Telecom 22773 1346 1259 Cox Communications, Inc. 23456 2711 1245 32-bit ASN transition 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. 41.190.32.0/23 31856 CABSAS 41.190.34.0/23 31856 CABSAS 41.190.36.0/23 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 /8:23 /9:12 /10:28 /11:81 /12:231 /13:461 /14:800 /15:1395 /16:11963 /17:5860 /18:9743 /19:19407 /20:25807 /21:26086 /22:34501 /23:33493 /24:188475 /25:1088 /26:1268 /27:728 /28:214 /29:9 /30:2 /31:0 /32:6 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2233 3629 bellsouth.net, inc. 18566 1869 1913 Covad Communications 6478 1466 1499 AT&T Worldnet Services 10620 1427 1532 TVCABLE BOGOTA 23456 1335 2711 32-bit ASN transition 11492 1090 1136 Cable One 7011 1058 1159 Citizens Utilities 7029 1055 1309 Alltel Information Services, 1785 1050 1797 PaeTec Communications, Inc. 22773 861 1346 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:297 2:42 4:16 5:1 6:3 8:336 12:1978 13:1 14:463 15:15 16:3 17:8 20:10 23:12 24:1657 27:806 31:482 32:64 33:4 34:2 37:1 38:738 39:3 40:103 41:2550 42:2 44:3 46:986 47:3 49:196 50:413 52:13 54:2 55:2 56:2 57:32 58:856 59:473 60:386 61:1183 62:1051 63:1937 64:3945 65:2288 66:3881 67:1901 68:1092 69:3048 70:756 71:388 72:1888 74:2383 75:319 76:340 77:884 78:714 79:464 80:1109 81:837 82:492 83:456 84:670 85:1078 86:552 87:759 88:333 89:1525 90:209 91:3871 92:536 93:1045 94:1316 95:839 96:445 97:253 98:880 99:36 101:76 103:90 106:10 107:16 108:70 109:1012 110:612 111:707 112:303 113:406 114:543 115:666 116:968 117:671 118:851 119:1144 120:313 121:669 122:1633 123:959 124:1303 125:1239 128:247 129:172 130:168 131:577 132:112 133:21 134:214 135:48 136:214 137:138 138:300 139:114 140:479 141:239 142:403 143:419 144:489 145:54 146:450 147:215 148:659 149:245 150:170 151:190 152:332 153:180 154:4 155:398 156:195 157:350 158:137 159:452 160:313 161:208 162:310 163:162 164:506 165:354 166:534 167:433 168:739 169:158 170:846 171:78 172:1 173:1621 174:607 175:372 176:138 177:150 178:1008 180:898 181:19 182:484 183:223 184:307 185:1 186:1234 187:738 188:873 189:913 190:4908 192:5867 193:4973 194:3489 195:3040 196:1222 197:41 198:3586 199:3958 200:5530 201:1503 202:8356 203:8429 204:4202 205:2347 206:2682 207:2809 208:3955 209:3471 210:2727 211:1460 212:2100 213:1739 214:772 215:69 216:4933 217:1636 218:549 219:362 220:1207 221:490 222:361 223:161 End of report