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 21 Jul, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 418048 Prefixes after maximum aggregation: 176224 Deaggregation factor: 2.37 Unique aggregates announced to Internet: 203512 Total ASes present in the Internet Routing Table: 41560 Prefixes per ASN: 10.06 Origin-only ASes present in the Internet Routing Table: 33342 Origin ASes announcing only one prefix: 15690 Transit ASes present in the Internet Routing Table: 5589 Transit-only ASes present in the Internet Routing Table: 132 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 26 Max AS path prepend of ASN ( 36992) 22 Prefixes from unregistered ASNs in the Routing Table: 368 Unregistered ASNs in the Routing Table: 134 Number of 32-bit ASNs allocated by the RIRs: 3013 Number of 32-bit ASNs visible in the Routing Table: 2629 Prefixes from 32-bit ASNs in the Routing Table: 6809 Special use prefixes present in the Routing Table: 1 Prefixes being announced from unallocated address space: 168 Number of addresses announced to Internet: 2568092204 Equivalent to 153 /8s, 17 /16s and 250 /24s Percentage of available address space announced: 69.3 Percentage of allocated address space announced: 69.4 Percentage of available address space allocated: 99.9 Percentage of address space in use by end-sites: 93.0 Total number of prefixes smaller than registry allocations: 145304 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 102118 Total APNIC prefixes after maximum aggregation: 32802 APNIC Deaggregation factor: 3.11 Prefixes being announced from the APNIC address blocks: 102579 Unique aggregates announced from the APNIC address blocks: 42176 APNIC Region origin ASes present in the Internet Routing Table: 4719 APNIC Prefixes per ASN: 21.74 APNIC Region origin ASes announcing only one prefix: 1246 APNIC Region transit ASes present in the Internet Routing Table: 745 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 26 Number of APNIC region 32-bit ASNs visible in the Routing Table: 250 Number of APNIC addresses announced to Internet: 704482432 Equivalent to 41 /8s, 253 /16s and 140 /24s Percentage of available APNIC address space announced: 82.3 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-133119 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, 150/8, 153/8, 163/8, 171/8, 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: 152850 Total ARIN prefixes after maximum aggregation: 77506 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 153890 Unique aggregates announced from the ARIN address blocks: 68642 ARIN Region origin ASes present in the Internet Routing Table: 15199 ARIN Prefixes per ASN: 10.13 ARIN Region origin ASes announcing only one prefix: 5763 ARIN Region transit ASes present in the Internet Routing Table: 1606 Average ARIN Region AS path length visible: 4.1 Max ARIN Region AS path length visible: 24 Number of ARIN region 32-bit ASNs visible in the Routing Table: 16 Number of ARIN addresses announced to Internet: 1071726976 Equivalent to 63 /8s, 225 /16s and 65 /24s Percentage of available ARIN address space announced: 56.7 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, 128/8, 129/8, 130/8, 131/8, 132/8, 134/8, 135/8, 136/8, 137/8, 138/8, 139/8, 140/8, 142/8, 143/8, 144/8, 146/8, 147/8, 148/8, 149/8, 152/8, 155/8, 156/8, 157/8, 158/8, 159/8, 160/8, 161/8, 162/8, 164/8, 165/8, 166/8, 167/8, 168/8, 169/8, 170/8, 172/8, 173/8, 174/8, 184/8, 192/8, 198/8, 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: 103959 Total RIPE prefixes after maximum aggregation: 55283 RIPE Deaggregation factor: 1.88 Prefixes being announced from the RIPE address blocks: 106121 Unique aggregates announced from the RIPE address blocks: 67350 RIPE Region origin ASes present in the Internet Routing Table: 16684 RIPE Prefixes per ASN: 6.36 RIPE Region origin ASes announcing only one prefix: 8081 RIPE Region transit ASes present in the Internet Routing Table: 2715 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 26 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1731 Number of RIPE addresses announced to Internet: 636890756 Equivalent to 37 /8s, 246 /16s and 46 /24s Percentage of available RIPE address space announced: 92.6 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 59392-61439, 196608-199679 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, 141/8, 145/8, 151/8, 176/8, 178/8, 185/8, 188/8, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 42631 Total LACNIC prefixes after maximum aggregation: 8417 LACNIC Deaggregation factor: 5.06 Prefixes being announced from the LACNIC address blocks: 45328 Unique aggregates announced from the LACNIC address blocks: 21794 LACNIC Region origin ASes present in the Internet Routing Table: 1612 LACNIC Prefixes per ASN: 28.12 LACNIC Region origin ASes announcing only one prefix: 430 LACNIC Region transit ASes present in the Internet Routing Table: 312 Average LACNIC Region AS path length visible: 4.7 Max LACNIC Region AS path length visible: 25 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 626 Number of LACNIC addresses announced to Internet: 112341928 Equivalent to 6 /8s, 178 /16s and 51 /24s Percentage of available LACNIC address space announced: 67.0 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, 191/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 9521 Total AfriNIC prefixes after maximum aggregation: 2161 AfriNIC Deaggregation factor: 4.41 Prefixes being announced from the AfriNIC address blocks: 9962 Unique aggregates announced from the AfriNIC address blocks: 3408 AfriNIC Region origin ASes present in the Internet Routing Table: 551 AfriNIC Prefixes per ASN: 18.08 AfriNIC Region origin ASes announcing only one prefix: 170 AfriNIC Region transit ASes present in the Internet Routing Table: 123 Average AfriNIC Region AS path length visible: 4.5 Max AfriNIC Region AS path length visible: 25 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 6 Number of AfriNIC addresses announced to Internet: 41297664 Equivalent to 2 /8s, 118 /16s and 39 /24s Percentage of available AfriNIC address space announced: 41.0 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 102/8, 105/8, 154/8, 196/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 2721 11122 1244 Korea Telecom (KIX) 17974 2240 563 84 PT TELEKOMUNIKASI INDONESIA 7545 1705 301 88 TPG Internet Pty Ltd 4755 1616 388 163 TATA Communications formerly 9829 1305 1085 26 BSNL National Internet Backbo 9583 1162 88 509 Sify Limited 7552 1128 1062 11 Vietel Corporation 4808 1118 2053 318 CNCGROUP IP network: China169 24560 1037 385 165 Bharti Airtel Ltd., Telemedia 9498 989 294 73 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 7029 3435 998 172 Windstream Communications Inc 6389 3385 3773 186 bellsouth.net, inc. 18566 2088 382 181 Covad Communications 1785 1937 681 131 PaeTec Communications, Inc. 22773 1680 2911 122 Cox Communications, Inc. 20115 1649 1571 615 Charter Communications 4323 1577 1028 383 Time Warner Telecom 30036 1390 270 779 Mediacom Communications Corp 7018 1247 10039 819 AT&T WorldNet Services 11492 1192 217 350 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 1645 544 16 Corbina telecom 2118 1023 97 14 EUnet/RELCOM Autonomous Syste 12479 799 743 92 Uni2 Autonomous System 34984 730 189 174 BILISIM TELEKOM 6830 711 2302 445 UPC Distribution Services 31148 705 37 9 FreeNet ISP 20940 688 223 540 Akamai Technologies European 13188 635 100 10 Educational Network 8551 577 364 61 Bezeq International 3320 499 8443 409 Deutsche Telekom AG 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 2010 348 208 TVCABLE BOGOTA 28573 1986 1212 87 NET Servicos de Comunicao S.A 6503 1523 418 66 AVANTEL, S.A. 8151 1463 3044 345 UniNet S.A. de C.V. 7303 1458 934 196 Telecom Argentina Stet-France 6458 856 81 15 GUATEL 27947 717 74 94 Telconet S.A 11172 643 91 74 Servicios Alestra S.A de C.V 3816 596 250 83 Empresa Nacional de Telecomun 22047 583 326 15 VTR PUNTO NET 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 8452 996 958 13 TEDATA 24863 863 274 32 LINKdotNET AS number 6713 509 650 19 Itissalat Al-MAGHRIB 36998 483 48 3 MOBITEL 24835 286 80 8 RAYA Telecom - Egypt 3741 262 905 223 The Internet Solution 12258 197 28 62 Vodacom Internet Company 29975 191 667 21 Vodacom 16637 169 664 86 MTN Network Solutions 29571 160 15 15 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 7029 3435 998 172 Windstream Communications Inc 6389 3385 3773 186 bellsouth.net, inc. 4766 2721 11122 1244 Korea Telecom (KIX) 17974 2240 563 84 PT TELEKOMUNIKASI INDONESIA 18566 2088 382 181 Covad Communications 10620 2010 348 208 TVCABLE BOGOTA 28573 1986 1212 87 NET Servicos de Comunicao S.A 1785 1937 681 131 PaeTec Communications, Inc. 7545 1705 301 88 TPG Internet Pty Ltd 22773 1680 2911 122 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 6389 3385 3199 bellsouth.net, inc. 17974 2240 2156 PT TELEKOMUNIKASI INDONESIA 18566 2088 1907 Covad Communications 28573 1986 1899 NET Servicos de Comunicao S.A 1785 1937 1806 PaeTec Communications, Inc. 10620 2010 1802 TVCABLE BOGOTA 8402 1645 1629 Corbina telecom 7545 1705 1617 TPG Internet Pty Ltd 22773 1680 1558 Cox Communications, Inc. 4766 2721 1477 Korea Telecom (KIX) Complete listing at http://thyme.rand.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 59407 UNALLOCATED 5.134.16.0/21 51167 Giga-Hosting GmbH 59457 UNALLOCATED 5.149.64.0/19 35567 DASTO semtel d.o.o. 15132 UNALLOCATED 12.9.150.0/24 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 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 14764 UNALLOCATED 12.108.237.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.rand.apnic.net/current/data-badAS Prefixes from private and non-routed address space (Global) ----------------------------------------------------------- Prefix Origin AS Description 198.18.0.0/15 14744 Internap Network Services Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 5.152.176.0/24 25577 C4L main AS 5.153.64.0/19 12703 edNETs Autonomous System 5.154.0.0/23 56465 Sistem Soft Network SRL 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 /11:82 /12:236 /13:473 /14:844 /15:1524 /16:12297 /17:6372 /18:10763 /19:20919 /20:29792 /21:31641 /22:41286 /23:39374 /24:218584 /25:1212 /26:1472 /27:854 /28:163 /29:60 /30:18 /31:0 /32:23 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2774 3435 Windstream Communications Inc 18566 2038 2088 Covad Communications 6389 1865 3385 bellsouth.net, inc. 8402 1343 1645 Corbina telecom 30036 1325 1390 Mediacom Communications Corp 11492 1155 1192 Cable One 22773 1107 1680 Cox Communications, Inc. 6503 1051 1523 AVANTEL, S.A. 1785 1044 1937 PaeTec Communications, Inc. 7011 930 1191 Citizens Utilities Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:577 2:737 3:1 4:13 5:153 6:3 8:438 12:2012 13:1 14:640 15:11 16:3 17:6 20:24 23:196 24:1796 27:1340 31:1018 32:56 33:2 34:2 36:8 37:662 38:826 39:1 40:134 41:2894 42:142 44:3 46:1524 47:2 49:432 50:558 52:13 54:14 55:8 56:1 57:31 58:983 59:529 60:244 61:1337 62:920 63:2034 64:4250 65:2245 66:4497 67:2014 68:1157 69:3201 70:988 71:514 72:1860 74:2603 75:490 76:334 77:939 78:921 79:492 80:1233 81:947 82:630 83:535 84:506 85:1150 86:423 87:928 88:347 89:1673 90:303 91:5039 92:581 93:1300 94:1560 95:1248 96:401 97:323 98:878 99:39 100:22 101:258 103:1288 105:464 106:115 107:189 108:384 109:1461 110:783 111:936 112:429 113:641 114:657 115:908 116:919 117:730 118:902 119:1231 120:356 121:801 122:1652 123:1167 124:1379 125:1260 128:551 129:185 130:267 131:632 132:300 133:22 134:247 135:61 136:215 137:241 138:334 139:177 140:496 141:253 142:432 143:370 144:490 145:77 146:510 147:283 148:770 149:319 150:149 151:186 152:473 153:176 154:19 155:406 156:222 157:381 158:190 159:628 160:341 161:264 162:379 163:192 164:674 165:413 166:588 167:529 168:914 169:127 170:900 171:149 172:5 173:1734 174:612 175:438 176:569 177:948 178:1641 180:1317 181:112 182:997 183:233 184:555 186:2040 187:1090 188:1370 189:1568 190:6121 192:6016 193:5542 194:4488 195:3210 196:1210 197:177 198:3681 199:4936 200:5991 201:1966 202:8695 203:8668 204:4392 205:2545 206:2791 207:2827 208:4046 209:3628 210:2783 211:1564 212:1973 213:1791 214:875 215:85 216:5085 217:1568 218:545 219:337 220:1222 221:572 222:336 223:347 End of report