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 19 Nov, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 382518 Prefixes after maximum aggregation: 166913 Deaggregation factor: 2.29 Unique aggregates announced to Internet: 187922 Total ASes present in the Internet Routing Table: 39344 Prefixes per ASN: 9.72 Origin-only ASes present in the Internet Routing Table: 32426 Origin ASes announcing only one prefix: 15480 Transit ASes present in the Internet Routing Table: 5275 Transit-only ASes present in the Internet Routing Table: 133 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: 1738 Unregistered ASNs in the Routing Table: 898 Number of 32-bit ASNs allocated by the RIRs: 1966 Number of 32-bit ASNs visible in the Routing Table: 1643 Prefixes from 32-bit ASNs in the Routing Table: 3811 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 85 Number of addresses announced to Internet: 2491183488 Equivalent to 148 /8s, 124 /16s and 113 /24s Percentage of available address space announced: 67.2 Percentage of allocated address space announced: 67.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.6 Total number of prefixes smaller than registry allocations: 161662 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 95270 Total APNIC prefixes after maximum aggregation: 31163 APNIC Deaggregation factor: 3.06 Prefixes being announced from the APNIC address blocks: 91712 Unique aggregates announced from the APNIC address blocks: 38427 APNIC Region origin ASes present in the Internet Routing Table: 4610 APNIC Prefixes per ASN: 19.89 APNIC Region origin ASes announcing only one prefix: 1269 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: 110 Number of APNIC addresses announced to Internet: 630281568 Equivalent to 37 /8s, 145 /16s and 85 /24s Percentage of available APNIC address space announced: 79.9 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: 145957 Total ARIN prefixes after maximum aggregation: 74487 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 118097 Unique aggregates announced from the ARIN address blocks: 48616 ARIN Region origin ASes present in the Internet Routing Table: 14749 ARIN Prefixes per ASN: 8.01 ARIN Region origin ASes announcing only one prefix: 5633 ARIN Region transit ASes present in the Internet Routing Table: 1567 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: 13 Number of ARIN addresses announced to Internet: 803282880 Equivalent to 47 /8s, 225 /16s and 31 /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: 92363 Total RIPE prefixes after maximum aggregation: 51229 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 84633 Unique aggregates announced from the RIPE address blocks: 54540 RIPE Region origin ASes present in the Internet Routing Table: 16120 RIPE Prefixes per ASN: 5.25 RIPE Region origin ASes announcing only one prefix: 7983 RIPE Region transit ASes present in the Internet Routing Table: 2536 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: 1143 Number of RIPE addresses announced to Internet: 492243904 Equivalent to 29 /8s, 87 /16s and 11 /24s Percentage of available RIPE address space announced: 79.3 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: 36318 Total LACNIC prefixes after maximum aggregation: 7909 LACNIC Deaggregation factor: 4.59 Prefixes being announced from the LACNIC address blocks: 35776 Unique aggregates announced from the LACNIC address blocks: 18643 LACNIC Region origin ASes present in the Internet Routing Table: 1547 LACNIC Prefixes per ASN: 23.13 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 283 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 18 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 373 Number of LACNIC addresses announced to Internet: 93166208 Equivalent to 5 /8s, 141 /16s and 154 /24s Percentage of available LACNIC address space announced: 61.7 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: 8616 Total AfriNIC prefixes after maximum aggregation: 2052 AfriNIC Deaggregation factor: 4.20 Prefixes being announced from the AfriNIC address blocks: 6675 Unique aggregates announced from the AfriNIC address blocks: 2049 AfriNIC Region origin ASes present in the Internet Routing Table: 499 AfriNIC Prefixes per ASN: 13.38 AfriNIC Region origin ASes announcing only one prefix: 156 AfriNIC Region transit ASes present in the Internet Routing Table: 108 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: 27745280 Equivalent to 1 /8s, 167 /16s and 92 /24s Percentage of available AfriNIC address space announced: 41.3 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 2506 11072 963 Korea Telecom (KIX) 17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1627 303 87 TPG Internet Pty Ltd 4755 1528 378 169 TATA Communications formerly 7552 1394 1064 7 Vietel Corporation 9829 1166 989 28 BSNL National Internet Backbo 4808 1097 2073 310 CNCGROUP IP network: China169 9583 1094 80 494 Sify Limited 24560 965 343 218 Bharti Airtel Ltd., Telemedia 18101 952 119 148 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 3543 3814 219 bellsouth.net, inc. 7029 2906 1016 199 Windstream Communications Inc 18566 2093 383 177 Covad Communications 1785 1848 680 121 PaeTec Communications, Inc. 4323 1613 1077 387 Time Warner Telecom 20115 1596 1546 624 Charter Communications 22773 1500 2909 103 Cox Communications, Inc. 30036 1428 257 670 Mediacom Communications Corp 19262 1387 4683 401 Verizon Global Networks 7018 1312 7029 860 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 1548 416 14 Corbina telecom 6830 646 1927 411 UPC Distribution Services 34984 601 112 188 BILISIM TELEKOM 20940 553 182 435 Akamai Technologies European 3320 512 8168 389 Deutsche Telekom AG 12479 484 596 9 Uni2 Autonomous System 3292 480 2106 408 TDC Tele Danmark 8866 462 133 26 Bulgarian Telecommunication C 8551 415 366 45 Bezeq International 31148 409 22 114 FreeNet ISP 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 1706 316 157 TVCABLE BOGOTA 28573 1500 1044 70 NET Servicos de Comunicao S.A 8151 1448 2972 345 UniNet S.A. de C.V. 7303 1238 751 173 Telecom Argentina Stet-France 27947 602 72 86 Telconet S.A 22047 580 322 17 VTR PUNTO NET S.A. 6503 557 434 68 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 540 234 96 Empresa Nacional de Telecomun 11172 529 85 95 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 778 146 36 LINKdotNET AS number 8452 685 446 12 TEDATA 15475 444 74 8 Nile Online 36992 283 415 21 Etisalat MISR 3741 281 939 230 The Internet Solution 15706 242 32 6 Sudatel Internet Exchange Aut 6713 235 519 14 Itissalat Al-MAGHRIB 29571 218 17 13 Ci Telecom Autonomous system 33776 212 13 14 Starcomms Nigeria Limited 12258 196 28 57 Vodacom Internet Company 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 3543 3814 219 bellsouth.net, inc. 7029 2906 1016 199 Windstream Communications Inc 4766 2506 11072 963 Korea Telecom (KIX) 18566 2093 383 177 Covad Communications 1785 1848 680 121 PaeTec Communications, Inc. 10620 1706 316 157 TVCABLE BOGOTA 17974 1647 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1627 303 87 TPG Internet Pty Ltd 4323 1613 1077 387 Time Warner Telecom 20115 1596 1546 624 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 7029 2906 2707 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1848 1727 PaeTec Communications, Inc. 17974 1647 1611 PT TELEKOMUNIKASI INDONESIA 10620 1706 1549 TVCABLE BOGOTA 4766 2506 1543 Korea Telecom (KIX) 7545 1627 1540 TPG Internet Pty Ltd 8402 1548 1534 Corbina telecom 28573 1500 1430 NET Servicos de Comunicao S.A 22773 1500 1397 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 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 128.0.0.0/16 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 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 37345 MEDALLION Communications 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 /12:236 /13:465 /14:807 /15:1426 /16:12011 /17:6087 /18:10125 /19:20002 /20:27673 /21:27853 /22:37927 /23:35487 /24:198837 /25:1153 /26:1361 /27:758 /28:162 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2535 2906 Windstream Communications Inc 6389 2185 3543 bellsouth.net, inc. 18566 2042 2093 Covad Communications 10620 1601 1706 TVCABLE BOGOTA 8402 1524 1548 Corbina telecom 30036 1388 1428 Mediacom Communications Corp 11492 1117 1154 Cable One 1785 1058 1848 PaeTec Communications, Inc. 7011 1050 1167 Citizens Utilities 22773 960 1500 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:411 2:487 4:15 5:1 6:3 8:355 12:1959 13:1 14:551 15:11 16:3 17:7 20:9 23:63 24:1688 27:1027 31:697 32:65 33:2 34:2 36:4 38:762 39:1 40:109 41:2689 42:61 43:1 44:3 46:1051 47:3 49:295 50:455 52:13 55:8 56:2 57:49 58:927 59:479 60:360 61:1143 62:1095 63:1965 64:4075 65:2301 66:4334 67:2000 68:1170 69:3146 70:904 71:384 72:1816 74:2640 75:429 76:320 77:892 78:891 79:439 80:1123 81:838 82:513 83:518 84:622 85:1150 86:405 87:907 88:357 89:1597 90:235 91:4274 92:539 93:1446 94:1306 95:1115 96:428 97:285 98:805 99:37 101:240 103:489 106:1 107:94 108:81 109:1188 110:674 111:805 112:363 113:497 114:595 115:715 116:879 117:720 118:894 119:1271 120:353 121:670 122:1576 123:1028 124:1367 125:1352 128:247 129:184 130:176 131:630 132:155 133:21 134:228 135:54 136:212 137:146 138:285 139:122 140:492 141:251 142:389 143:400 144:489 145:65 146:470 147:219 148:632 149:263 150:161 151:192 152:449 153:172 154:7 155:390 156:208 157:358 158:158 159:494 160:330 161:215 162:368 163:175 164:511 165:369 166:542 167:444 168:823 169:145 170:879 171:87 172:4 173:1745 174:592 175:432 176:297 177:393 178:1117 180:1147 181:39 182:656 183:239 184:394 185:1 186:1409 187:779 188:980 189:1159 190:5209 192:5933 193:5038 194:3544 195:3108 196:1276 197:166 198:3623 199:4216 200:5533 201:1704 202:8546 203:8549 204:4307 205:2398 206:2592 207:2820 208:4030 209:3577 210:2740 211:1465 212:2010 213:1807 214:815 215:97 216:4923 217:1601 218:577 219:339 220:1253 221:520 222:327 223:279 End of report