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 01 Oct, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 374848 Prefixes after maximum aggregation: 168719 Deaggregation factor: 2.22 Unique aggregates announced to Internet: 185153 Total ASes present in the Internet Routing Table: 38930 Prefixes per ASN: 9.63 Origin-only ASes present in the Internet Routing Table: 32252 Origin ASes announcing only one prefix: 15477 Transit ASes present in the Internet Routing Table: 5218 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.4 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 1474 Unregistered ASNs in the Routing Table: 802 Number of 32-bit ASNs allocated by the RIRs: 1802 Number of 32-bit ASNs visible in the Routing Table: 1460 Prefixes from 32-bit ASNs in the Routing Table: 3347 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 103 Number of addresses announced to Internet: 2481536768 Equivalent to 147 /8s, 233 /16s and 63 /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: 91.4 Total number of prefixes smaller than registry allocations: 156962 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 93945 Total APNIC prefixes after maximum aggregation: 30799 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 90409 Unique aggregates announced from the APNIC address blocks: 37945 APNIC Region origin ASes present in the Internet Routing Table: 4567 APNIC Prefixes per ASN: 19.80 APNIC Region origin ASes announcing only one prefix: 1260 APNIC Region transit ASes present in the Internet Routing Table: 707 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 90 Number of APNIC addresses announced to Internet: 628377696 Equivalent to 37 /8s, 116 /16s and 72 /24s Percentage of available APNIC address space announced: 79.7 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: 143988 Total ARIN prefixes after maximum aggregation: 73994 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 116124 Unique aggregates announced from the ARIN address blocks: 47994 ARIN Region origin ASes present in the Internet Routing Table: 14694 ARIN Prefixes per ASN: 7.90 ARIN Region origin ASes announcing only one prefix: 5653 ARIN Region transit ASes present in the Internet Routing Table: 1557 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 25 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 804495360 Equivalent to 47 /8s, 243 /16s and 160 /24s Percentage of available ARIN address space announced: 63.9 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: 89839 Total RIPE prefixes after maximum aggregation: 50430 RIPE Deaggregation factor: 1.78 Prefixes being announced from the RIPE address blocks: 82551 Unique aggregates announced from the RIPE address blocks: 54098 RIPE Region origin ASes present in the Internet Routing Table: 16005 RIPE Prefixes per ASN: 5.16 RIPE Region origin ASes announcing only one prefix: 7962 RIPE Region transit ASes present in the Internet Routing Table: 2506 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1032 Number of RIPE addresses announced to Internet: 490070912 Equivalent to 29 /8s, 53 /16s and 227 /24s Percentage of available RIPE address space announced: 78.9 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: 35011 Total LACNIC prefixes after maximum aggregation: 7797 LACNIC Deaggregation factor: 4.49 Prefixes being announced from the LACNIC address blocks: 34336 Unique aggregates announced from the LACNIC address blocks: 18003 LACNIC Region origin ASes present in the Internet Routing Table: 1530 LACNIC Prefixes per ASN: 22.44 LACNIC Region origin ASes announcing only one prefix: 449 LACNIC Region transit ASes present in the Internet Routing Table: 279 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 322 Number of LACNIC addresses announced to Internet: 89805184 Equivalent to 5 /8s, 90 /16s and 81 /24s Percentage of available LACNIC address space announced: 59.5 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: 8547 Total AfriNIC prefixes after maximum aggregation: 2002 AfriNIC Deaggregation factor: 4.27 Prefixes being announced from the AfriNIC address blocks: 6606 Unique aggregates announced from the AfriNIC address blocks: 1963 AfriNIC Region origin ASes present in the Internet Routing Table: 488 AfriNIC Prefixes per ASN: 13.54 AfriNIC Region origin ASes announcing only one prefix: 153 AfriNIC Region transit ASes present in the Internet Routing Table: 103 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: 4 Number of AfriNIC addresses announced to Internet: 27644160 Equivalent to 1 /8s, 165 /16s and 209 /24s Percentage of available AfriNIC address space announced: 41.2 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 2509 11048 962 Korea Telecom (KIX) 17974 1986 519 33 PT TELEKOMUNIKASI INDONESIA 7545 1607 303 86 TPG Internet Pty Ltd 4755 1546 638 176 TATA Communications formerly 24560 1184 346 195 Bharti Airtel Ltd., Telemedia 9829 1158 989 28 BSNL National Internet Backbo 7552 1105 1064 7 Vietel Corporation 9583 1086 80 502 Sify Limited 4808 1074 2096 303 CNCGROUP IP network: China169 18101 952 165 142 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 3557 3817 225 bellsouth.net, inc. 18566 1915 366 239 Covad Communications 1785 1829 680 124 PaeTec Communications, Inc. 7029 1720 1008 194 Windstream Communications Inc 4323 1625 1082 391 Time Warner Telecom 20115 1595 1542 635 Charter Communications 22773 1456 2907 100 Cox Communications, Inc. 19262 1395 4728 400 Verizon Global Networks 30036 1390 252 666 Mediacom Communications Corp 7018 1338 7051 874 AT&T WorldNet 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 8402 1224 352 13 Corbina telecom 34984 577 108 180 BILISIM TELEKOM 6830 557 1873 333 UPC Distribution Services 20940 530 178 408 Akamai Technologies European 3320 501 8169 383 Deutsche Telekom AG 3292 479 2082 408 TDC Tele Danmark 12479 474 593 7 Uni2 Autonomous System 8866 459 133 26 Bulgarian Telecommunication C 29049 423 31 55 AzerSat LLC. 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 1681 310 155 TVCABLE BOGOTA 8151 1410 2823 344 UniNet S.A. de C.V. 28573 1368 1013 70 NET Servicos de Comunicao S.A 7303 1164 683 175 Telecom Argentina Stet-France 14420 742 58 87 CORPORACION NACIONAL DE TELEC 22047 581 322 17 VTR PUNTO NET S.A. 6503 577 450 69 AVANTEL, S.A. 27947 573 71 83 Telconet S.A 3816 536 232 98 Empresa Nacional de Telecomun 11172 521 85 93 Servicios Alestra S.A de C.V 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 813 147 37 LINKdotNET AS number 8452 663 445 11 TEDATA 15475 449 74 8 Nile Online 36992 293 415 14 Etisalat MISR 3741 278 939 231 The Internet Solution 15706 244 32 6 Sudatel Internet Exchange Aut 6713 242 519 14 Itissalat Al-MAGHRIB 33776 239 13 8 Starcomms Nigeria Limited 12258 198 28 58 Vodacom Internet Company 29571 192 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 3557 3817 225 bellsouth.net, inc. 4766 2509 11048 962 Korea Telecom (KIX) 17974 1986 519 33 PT TELEKOMUNIKASI INDONESIA 18566 1915 366 239 Covad Communications 1785 1829 680 124 PaeTec Communications, Inc. 7029 1720 1008 194 Windstream Communications Inc 10620 1681 310 155 TVCABLE BOGOTA 4323 1625 1082 391 Time Warner Telecom 7545 1607 303 86 TPG Internet Pty Ltd 20115 1595 1542 635 Charter Communications 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 1986 1953 PT TELEKOMUNIKASI INDONESIA 1785 1829 1705 PaeTec Communications, Inc. 18566 1915 1676 Covad Communications 4766 2509 1547 Korea Telecom (KIX) 7029 1720 1526 Windstream Communications Inc 10620 1681 1526 TVCABLE BOGOTA 7545 1607 1521 TPG Internet Pty Ltd 4755 1546 1370 TATA Communications formerly 22773 1456 1356 Cox Communications, Inc. 28573 1368 1298 NET Servicos de Comunicao 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 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 /8:19 /9:12 /10:27 /11:81 /12:235 /13:463 /14:802 /15:1420 /16:11981 /17:5988 /18:10044 /19:19827 /20:26999 /21:27144 /22:36733 /23:34891 /24:194773 /25:1132 /26:1345 /27:752 /28:171 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2194 3557 bellsouth.net, inc. 18566 1870 1915 Covad Communications 10620 1576 1681 TVCABLE BOGOTA 7029 1417 1720 Windstream Communications Inc 30036 1351 1390 Mediacom Communications Corp 8402 1185 1224 Corbina telecom 11492 1115 1153 Cable One 1785 1054 1829 PaeTec Communications, Inc. 7011 1052 1173 Citizens Utilities 22773 945 1456 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:381 2:393 4:15 5:1 6:3 8:353 12:1956 13:1 14:532 15:13 16:3 17:7 20:10 23:36 24:1688 27:959 31:564 32:65 33:4 34:2 36:4 38:746 40:108 41:2639 42:48 44:3 46:993 47:3 49:263 50:432 52:13 55:3 56:2 57:38 58:879 59:492 60:365 61:1178 62:1089 63:1935 64:4052 65:2306 66:3979 67:1952 68:1102 69:3194 70:814 71:377 72:1849 74:2458 75:350 76:341 77:883 78:829 79:480 80:1122 81:835 82:503 83:501 84:622 85:1118 86:408 87:876 88:352 89:1591 90:268 91:4143 92:535 93:1339 94:1318 95:964 96:440 97:277 98:905 99:37 101:209 103:331 106:70 107:56 108:47 109:1034 110:663 111:796 112:322 113:449 114:569 115:681 116:870 117:689 118:866 119:1208 120:334 121:678 122:1605 123:1013 124:1353 125:1393 128:244 129:178 130:163 131:580 132:112 133:21 134:214 135:54 136:213 137:139 138:288 139:122 140:494 141:292 142:388 143:416 144:482 145:63 146:471 147:215 148:641 149:264 150:155 151:193 152:446 153:177 154:6 155:385 156:207 157:361 158:150 159:465 160:322 161:206 162:336 163:178 164:511 165:374 166:536 167:432 168:739 169:147 170:865 171:85 172:1 173:1641 174:648 175:417 176:246 177:291 178:1031 180:1090 181:37 182:627 183:215 184:355 185:1 186:1493 187:676 188:923 189:826 190:5177 192:5916 193:5011 194:3528 195:3078 196:1257 197:174 198:3626 199:4140 200:5520 201:1641 202:8580 203:8492 204:4258 205:2357 206:2676 207:2824 208:4041 209:3464 210:2696 211:1463 212:2044 213:1776 214:785 215:90 216:4897 217:1594 218:561 219:338 220:1227 221:514 222:342 223:263 End of report