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, TRNOG, 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 28 Apr, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 407208 Prefixes after maximum aggregation: 172996 Deaggregation factor: 2.35 Unique aggregates announced to Internet: 198106 Total ASes present in the Internet Routing Table: 40826 Prefixes per ASN: 9.97 Origin-only ASes present in the Internet Routing Table: 33106 Origin ASes announcing only one prefix: 15607 Transit ASes present in the Internet Routing Table: 5451 Transit-only ASes present in the Internet Routing Table: 135 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 64 Max AS path prepend of ASN ( 9902) 56 Prefixes from unregistered ASNs in the Routing Table: 394 Unregistered ASNs in the Routing Table: 128 Number of 32-bit ASNs allocated by the RIRs: 2635 Number of 32-bit ASNs visible in the Routing Table: 2269 Prefixes from 32-bit ASNs in the Routing Table: 5659 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 110 Number of addresses announced to Internet: 2540346576 Equivalent to 151 /8s, 106 /16s and 156 /24s Percentage of available address space announced: 68.5 Percentage of allocated address space announced: 68.6 Percentage of available address space allocated: 99.9 Percentage of address space in use by end-sites: 92.5 Total number of prefixes smaller than registry allocations: 173699 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 99521 Total APNIC prefixes after maximum aggregation: 32245 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 96009 Unique aggregates announced from the APNIC address blocks: 39862 APNIC Region origin ASes present in the Internet Routing Table: 4684 APNIC Prefixes per ASN: 20.50 APNIC Region origin ASes announcing only one prefix: 1238 APNIC Region transit ASes present in the Internet Routing Table: 734 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 20 Number of APNIC region 32-bit ASNs visible in the Routing Table: 190 Number of APNIC addresses announced to Internet: 644227680 Equivalent to 38 /8s, 102 /16s and 34 /24s Percentage of available APNIC address space announced: 81.7 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: 150278 Total ARIN prefixes after maximum aggregation: 76417 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 121331 Unique aggregates announced from the ARIN address blocks: 50436 ARIN Region origin ASes present in the Internet Routing Table: 15053 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix: 5724 ARIN Region transit ASes present in the Internet Routing Table: 1581 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: 17 Number of ARIN addresses announced to Internet: 807268032 Equivalent to 48 /8s, 29 /16s and 238 /24s Percentage of available ARIN address space announced: 64.4 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: 101788 Total RIPE prefixes after maximum aggregation: 53879 RIPE Deaggregation factor: 1.89 Prefixes being announced from the RIPE address blocks: 93665 Unique aggregates announced from the RIPE address blocks: 58385 RIPE Region origin ASes present in the Internet Routing Table: 16520 RIPE Prefixes per ASN: 5.67 RIPE Region origin ASes announcing only one prefix: 8040 RIPE Region transit ASes present in the Internet Routing Table: 2627 Average RIPE Region AS path length visible: 4.9 Max RIPE Region AS path length visible: 28 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1528 Number of RIPE addresses announced to Internet: 510941832 Equivalent to 30 /8s, 116 /16s and 90 /24s Percentage of available RIPE address space announced: 82.3 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: 40893 Total LACNIC prefixes after maximum aggregation: 8250 LACNIC Deaggregation factor: 4.96 Prefixes being announced from the LACNIC address blocks: 40763 Unique aggregates announced from the LACNIC address blocks: 20273 LACNIC Region origin ASes present in the Internet Routing Table: 1592 LACNIC Prefixes per ASN: 25.60 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 300 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: 529 Number of LACNIC addresses announced to Internet: 99745160 Equivalent to 5 /8s, 241 /16s and 253 /24s Percentage of available LACNIC address space announced: 66.1 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: 8894 Total AfriNIC prefixes after maximum aggregation: 2137 AfriNIC Deaggregation factor: 4.16 Prefixes being announced from the AfriNIC address blocks: 6962 Unique aggregates announced from the AfriNIC address blocks: 2224 AfriNIC Region origin ASes present in the Internet Routing Table: 534 AfriNIC Prefixes per ASN: 13.04 AfriNIC Region origin ASes announcing only one prefix: 166 AfriNIC Region transit ASes present in the Internet Routing Table: 120 Average AfriNIC Region AS path length visible: 4.6 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 31785728 Equivalent to 1 /8s, 229 /16s and 3 /24s Percentage of available AfriNIC address space announced: 47.4 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 2485 11112 1010 Korea Telecom (KIX) 17974 1822 509 71 PT TELEKOMUNIKASI INDONESIA 7545 1679 301 88 TPG Internet Pty Ltd 4755 1584 386 158 TATA Communications formerly 9829 1261 1069 30 BSNL National Internet Backbo 7552 1169 1062 11 Vietel Corporation 9583 1145 84 490 Sify Limited 4808 1111 2050 319 CNCGROUP IP network: China169 24560 1027 385 167 Bharti Airtel Ltd., Telemedia 9498 954 291 65 BHARTI Airtel Ltd. 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 3425 3807 194 bellsouth.net, inc. 7029 3368 986 158 Windstream Communications Inc 18566 2091 382 179 Covad Communications 1785 1906 680 131 PaeTec Communications, Inc. 20115 1639 1566 619 Charter Communications 4323 1599 1044 383 Time Warner Telecom 22773 1580 2910 114 Cox Communications, Inc. 30036 1420 261 768 Mediacom Communications Corp 7018 1249 9774 818 AT&T WorldNet Services 11492 1186 216 364 Cable One 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 8402 1679 544 16 Corbina telecom 2118 1304 97 14 EUnet/RELCOM Autonomous Syste 31148 681 37 9 FreeNet ISP 34984 681 188 173 BILISIM TELEKOM 6830 655 2215 426 UPC Distribution Services 12479 650 668 66 Uni2 Autonomous System 20940 636 206 498 Akamai Technologies European 8551 571 360 80 Bezeq International 3320 531 8441 397 Deutsche Telekom AG 2578 501 33 7 Demos, Moscow, Russia 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 1832 329 171 TVCABLE BOGOTA 28573 1804 1114 62 NET Servicos de Comunicao S.A 6503 1533 418 65 AVANTEL, S.A. 8151 1486 3000 345 UniNet S.A. de C.V. 7303 1362 829 187 Telecom Argentina Stet-France 26615 903 761 33 Tim Brasil S.A. 27947 685 74 98 Telconet S.A 11172 639 91 73 Servicios Alestra S.A de C.V 22047 582 326 15 VTR PUNTO NET S.A. 3816 572 242 100 Empresa Nacional de Telecomun 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 1305 958 13 TEDATA 24863 840 274 35 LINKdotNET AS number 6713 493 649 18 Itissalat Al-MAGHRIB 3741 265 921 223 The Internet Solution 12258 197 28 62 Vodacom Internet Company 33776 195 12 24 Starcomms Nigeria Limited 24835 179 80 8 RAYA Telecom - Egypt 16637 174 666 83 MTN Network Solutions 15706 169 32 6 Sudatel Internet Exchange Aut 29571 157 15 16 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 3425 3807 194 bellsouth.net, inc. 7029 3368 986 158 Windstream Communications Inc 4766 2485 11112 1010 Korea Telecom (KIX) 18566 2091 382 179 Covad Communications 1785 1906 680 131 PaeTec Communications, Inc. 10620 1832 329 171 TVCABLE BOGOTA 17974 1822 509 71 PT TELEKOMUNIKASI INDONESIA 28573 1804 1114 62 NET Servicos de Comunicao S.A 7545 1679 301 88 TPG Internet Pty Ltd 8402 1679 544 16 Corbina telecom Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 7029 3368 3210 Windstream Communications Inc 18566 2091 1912 Covad Communications 1785 1906 1775 PaeTec Communications, Inc. 17974 1822 1751 PT TELEKOMUNIKASI INDONESIA 28573 1804 1742 NET Servicos de Comunicao S.A 8402 1679 1663 Corbina telecom 10620 1832 1661 TVCABLE BOGOTA 7545 1679 1591 TPG Internet Pty Ltd 4766 2485 1475 Korea Telecom (KIX) 6503 1533 1468 AVANTEL, S.A. 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 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 17300 UNALLOCATED 12.45.103.0/24 7018 AT&T WorldNet Servic 17300 UNALLOCATED 12.45.110.0/24 701 UUNET Technologies, 16476 UNALLOCATED 12.46.27.0/24 7018 AT&T WorldNet Servic 32873 UNALLOCATED 12.46.100.0/23 10912 InterNAP Network Ser Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 128.0.0.0/21 12654 RIPE NCC RIS Project 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.3.0.0/16 41733 JSC "Z-Telecom" 5.8.184.0/21 29286 Skylogic Italia Autonomous Sy 5.16.0.0/14 41733 JSC "Z-Telecom" 14.192.0.0/22 45464 Room 201, TGU Bldg 14.192.4.0/22 45464 Room 201, TGU Bldg 14.192.8.0/22 45464 Room 201, TGU Bldg 14.192.12.0/22 45464 Room 201, TGU Bldg 14.192.16.0/22 45464 Room 201, TGU Bldg 14.192.20.0/22 45464 Room 201, TGU Bldg 14.192.24.0/22 45464 Room 201, TGU Bldg 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 /10:28 /11:81 /12:235 /13:460 /14:832 /15:1489 /16:12244 /17:6243 /18:10539 /19:20613 /20:29018 /21:30083 /22:40581 /23:38021 /24:213032 /25:1196 /26:1429 /27:784 /28:166 /29:67 /30:17 /31:0 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3026 3368 Windstream Communications Inc 6389 2143 3425 bellsouth.net, inc. 18566 2040 2091 Covad Communications 10620 1709 1832 TVCABLE BOGOTA 8402 1657 1679 Corbina telecom 30036 1364 1420 Mediacom Communications Corp 6503 1291 1533 AVANTEL, S.A. 11492 1149 1186 Cable One 8452 1105 1305 TEDATA 1785 1072 1906 PaeTec Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:539 2:550 4:14 6:3 8:406 12:1999 13:1 14:611 15:12 16:3 17:5 20:23 23:167 24:1761 27:1273 31:952 32:57 33:2 34:2 36:8 37:421 38:800 40:120 41:3112 42:135 44:3 46:1481 47:3 49:404 50:538 52:13 54:8 55:11 56:3 57:31 58:965 59:520 60:254 61:1277 62:976 63:1990 64:4173 65:2255 66:4486 67:2021 68:1166 69:3189 70:903 71:466 72:1825 74:2602 75:494 76:318 77:941 78:1012 79:487 80:1209 81:902 82:673 83:550 84:482 85:1210 86:412 87:929 88:340 89:1630 90:291 91:4769 92:520 93:1507 94:1510 95:894 96:358 97:315 98:895 99:37 100:7 101:181 103:1030 106:102 107:191 108:268 109:1306 110:746 111:923 112:454 113:600 114:642 115:807 116:929 117:719 118:909 119:1230 120:354 121:692 122:1676 123:1104 124:1364 125:1243 128:562 129:196 130:255 131:626 132:180 133:22 134:242 135:62 136:214 137:177 138:355 139:163 140:492 141:242 142:407 143:392 144:523 145:74 146:495 147:279 148:768 149:306 150:159 151:181 152:464 153:172 154:12 155:399 156:215 157:375 158:179 159:539 160:338 161:262 162:348 163:191 164:580 165:399 166:573 167:468 168:820 169:128 170:859 171:127 172:2 173:1756 174:570 175:437 176:686 177:654 178:1349 180:1192 181:79 182:826 183:289 184:462 185:1 186:2247 187:1056 188:1239 189:1791 190:5513 192:6010 193:5539 194:4658 195:3600 196:1271 197:129 198:3660 199:4543 200:5806 201:1934 202:8518 203:8599 204:4327 205:2498 206:2746 207:2796 208:4057 209:3621 210:2736 211:1478 212:1983 213:1927 214:848 215:104 216:5131 217:1533 218:545 219:318 220:1230 221:558 222:323 223:336 End of report