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 10 Mar, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 400226 Prefixes after maximum aggregation: 170764 Deaggregation factor: 2.34 Unique aggregates announced to Internet: 194744 Total ASes present in the Internet Routing Table: 40315 Prefixes per ASN: 9.93 Origin-only ASes present in the Internet Routing Table: 32840 Origin ASes announcing only one prefix: 15490 Transit ASes present in the Internet Routing Table: 5414 Transit-only ASes present in the Internet Routing Table: 144 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: 369 Unregistered ASNs in the Routing Table: 162 Number of 32-bit ASNs allocated by the RIRs: 2313 Number of 32-bit ASNs visible in the Routing Table: 2061 Prefixes from 32-bit ASNs in the Routing Table: 4921 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 561 Number of addresses announced to Internet: 2525381776 Equivalent to 150 /8s, 134 /16s and 68 /24s Percentage of available address space announced: 68.1 Percentage of allocated address space announced: 68.1 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 92.1 Total number of prefixes smaller than registry allocations: 170161 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 98128 Total APNIC prefixes after maximum aggregation: 31878 APNIC Deaggregation factor: 3.08 Prefixes being announced from the APNIC address blocks: 94515 Unique aggregates announced from the APNIC address blocks: 39432 APNIC Region origin ASes present in the Internet Routing Table: 4670 APNIC Prefixes per ASN: 20.24 APNIC Region origin ASes announcing only one prefix: 1237 APNIC Region transit ASes present in the Internet Routing Table: 735 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: 164 Number of APNIC addresses announced to Internet: 640794208 Equivalent to 38 /8s, 49 /16s and 190 /24s Percentage of available APNIC address space announced: 81.3 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079, 55296-56319, 58368-59391, 131072-132095, 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: 149018 Total ARIN prefixes after maximum aggregation: 75689 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 120522 Unique aggregates announced from the ARIN address blocks: 49856 ARIN Region origin ASes present in the Internet Routing Table: 14928 ARIN Prefixes per ASN: 8.07 ARIN Region origin ASes announcing only one prefix: 5667 ARIN Region transit ASes present in the Internet Routing Table: 1571 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 22 Number of ARIN region 32-bit ASNs visible in the Routing Table: 15 Number of ARIN addresses announced to Internet: 806485760 Equivalent to 48 /8s, 17 /16s and 255 /24s Percentage of available ARIN address space announced: 64.1 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: 100333 Total RIPE prefixes after maximum aggregation: 52819 RIPE Deaggregation factor: 1.90 Prefixes being announced from the RIPE address blocks: 91871 Unique aggregates announced from the RIPE address blocks: 56921 RIPE Region origin ASes present in the Internet Routing Table: 16335 RIPE Prefixes per ASN: 5.62 RIPE Region origin ASes announcing only one prefix: 7986 RIPE Region transit ASes present in the Internet Routing Table: 2623 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: 1406 Number of RIPE addresses announced to Internet: 501532936 Equivalent to 29 /8s, 228 /16s and 201 /24s Percentage of available RIPE address space announced: 80.8 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: 38950 Total LACNIC prefixes after maximum aggregation: 8158 LACNIC Deaggregation factor: 4.77 Prefixes being announced from the LACNIC address blocks: 38648 Unique aggregates announced from the LACNIC address blocks: 19684 LACNIC Region origin ASes present in the Internet Routing Table: 1573 LACNIC Prefixes per ASN: 24.57 LACNIC Region origin ASes announcing only one prefix: 434 LACNIC Region transit ASes present in the Internet Routing Table: 285 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 27 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 472 Number of LACNIC addresses announced to Internet: 98090376 Equivalent to 5 /8s, 216 /16s and 189 /24s Percentage of available LACNIC address space announced: 65.0 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, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 8653 Total AfriNIC prefixes after maximum aggregation: 2097 AfriNIC Deaggregation factor: 4.13 Prefixes being announced from the AfriNIC address blocks: 6739 Unique aggregates announced from the AfriNIC address blocks: 2164 AfriNIC Region origin ASes present in the Internet Routing Table: 518 AfriNIC Prefixes per ASN: 13.01 AfriNIC Region origin ASes announcing only one prefix: 166 AfriNIC Region transit ASes present in the Internet Routing Table: 116 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: 31553792 Equivalent to 1 /8s, 225 /16s and 121 /24s Percentage of available AfriNIC address space announced: 47.0 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 2494 11109 994 Korea Telecom (KIX) 17974 1735 503 37 PT TELEKOMUNIKASI INDONESIA 7545 1647 303 86 TPG Internet Pty Ltd 4755 1568 386 158 TATA Communications formerly 9583 1236 93 525 Sify Limited 9829 1187 1001 30 BSNL National Internet Backbo 7552 1160 1062 11 Vietel Corporation 4808 1093 2048 311 CNCGROUP IP network: China169 24560 1005 383 166 Bharti Airtel Ltd., Telemedia 18101 949 130 155 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 7029 3418 1014 159 Windstream Communications Inc 6389 3405 3807 198 bellsouth.net, inc. 18566 2091 382 177 Covad Communications 1785 1881 680 128 PaeTec Communications, Inc. 20115 1635 1555 634 Charter Communications 4323 1608 1059 383 Time Warner Telecom 22773 1544 2910 111 Cox Communications, Inc. 30036 1419 259 758 Mediacom Communications Corp 19262 1359 4701 399 Verizon Global Networks 7018 1281 9776 841 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 1777 544 16 Corbina telecom 2118 1421 97 13 EUnet/RELCOM Autonomous Syste 15557 1087 2184 60 LDCOM NETWORKS 34984 658 188 171 BILISIM TELEKOM 20940 641 206 489 Akamai Technologies European 6830 640 1927 411 UPC Distribution Services 12479 640 648 54 Uni2 Autonomous System 8551 578 360 81 Bezeq International 31148 540 37 9 FreeNet ISP 3320 533 8442 399 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 1761 326 160 TVCABLE BOGOTA 28573 1688 1092 57 NET Servicos de Comunicao S.A 8151 1487 3013 348 UniNet S.A. de C.V. 7303 1328 822 186 Telecom Argentina Stet-France 26615 899 676 30 Tim Brasil S.A. 27947 678 68 110 Telconet S.A 11172 634 91 72 Servicios Alestra S.A de C.V 22047 582 322 17 VTR PUNTO NET S.A. 6503 572 418 65 AVANTEL, S.A. 3816 558 240 89 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 1178 958 13 TEDATA 24863 801 274 37 LINKdotNET AS number 6713 489 649 18 Itissalat Al-MAGHRIB 3741 277 923 228 The Internet Solution 15706 227 32 6 Sudatel Internet Exchange Aut 12258 197 28 62 Vodacom Internet Company 24835 182 80 8 RAYA Telecom - Egypt 33776 161 12 16 Starcomms Nigeria Limited 36923 157 20 4 Swift Networks Limited 29571 156 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 7029 3418 1014 159 Windstream Communications Inc 6389 3405 3807 198 bellsouth.net, inc. 4766 2494 11109 994 Korea Telecom (KIX) 18566 2091 382 177 Covad Communications 1785 1881 680 128 PaeTec Communications, Inc. 8402 1777 544 16 Corbina telecom 10620 1761 326 160 TVCABLE BOGOTA 17974 1735 503 37 PT TELEKOMUNIKASI INDONESIA 28573 1688 1092 57 NET Servicos de Comunicao S.A 7545 1647 303 86 TPG Internet Pty Ltd 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 3405 3207 bellsouth.net, inc. 18566 2091 1914 Covad Communications 8402 1777 1761 Corbina telecom 1785 1881 1753 PaeTec Communications, Inc. 17974 1735 1698 PT TELEKOMUNIKASI INDONESIA 28573 1688 1631 NET Servicos de Comunicao S.A 10620 1761 1601 TVCABLE BOGOTA 7545 1647 1561 TPG Internet Pty Ltd 4766 2494 1500 Korea Telecom (KIX) 22773 1544 1433 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 128.0.24.0/24 12654 RIPE NCC RIS Project Complete listing at http://thyme.rand.apnic.net/current/data-dsua Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 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 14.192.28.0/22 45464 Room 201, TGU Bldg 23.27.0.0/20 54500 EGIHosting 23.27.0.0/16 54500 EGIHosting 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 /13:458 /14:818 /15:1476 /16:12177 /17:6227 /18:10410 /19:20464 /20:28564 /21:29360 /22:39917 /23:37110 /24:209174 /25:1212 /26:1443 /27:782 /28:169 /29:57 /30:14 /31:0 /32:19 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3073 3418 Windstream Communications Inc 6389 2103 3405 bellsouth.net, inc. 18566 2040 2091 Covad Communications 8402 1755 1777 Corbina telecom 10620 1658 1761 TVCABLE BOGOTA 30036 1368 1419 Mediacom Communications Corp 11492 1125 1162 Cable One 1785 1064 1881 PaeTec Communications, Inc. 7011 1042 1157 Citizens Utilities 15557 1034 1087 LDCOM NETWORKS Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:523 2:726 4:14 6:3 8:392 12:1961 13:1 14:603 15:12 16:3 17:7 20:8 23:142 24:1749 27:1231 31:961 32:62 33:2 34:2 36:9 37:237 38:778 40:117 41:2936 42:123 44:3 46:1403 47:3 49:339 50:512 52:13 54:5 55:12 56:3 57:38 58:953 59:497 60:283 61:1190 62:972 63:2011 64:4132 65:2281 66:4471 67:2031 68:1158 69:3168 70:917 71:423 72:1831 74:2635 75:469 76:320 77:977 78:963 79:485 80:1209 81:887 82:630 83:538 84:604 85:1185 86:726 87:907 88:334 89:1565 90:285 91:4549 92:515 93:1382 94:1369 95:1120 96:424 97:316 98:833 99:38 100:5 101:146 103:886 106:64 107:171 108:211 109:1532 110:726 111:861 112:437 113:536 114:609 115:774 116:870 117:712 118:910 119:1261 120:329 121:687 122:1621 123:1077 124:1341 125:1341 128:543 129:192 130:260 131:591 132:166 133:21 134:236 135:62 136:212 137:185 138:275 139:145 140:491 141:266 142:390 143:427 144:501 145:68 146:490 147:243 148:725 149:300 150:162 151:176 152:448 153:171 154:7 155:432 156:212 157:370 158:162 159:518 160:327 161:245 162:344 163:186 164:531 165:394 166:564 167:461 168:810 169:148 170:848 171:117 172:4 173:1716 174:608 175:421 176:547 177:537 178:1285 180:1196 181:66 182:769 183:285 184:442 185:1 186:2101 187:857 188:1052 189:1207 190:5471 192:5990 193:5573 194:4408 195:3611 196:1286 197:168 198:3636 199:4443 200:5739 201:1771 202:8389 203:8669 204:4361 205:2457 206:2753 207:2794 208:4045 209:3571 210:2754 211:1464 212:1956 213:1879 214:871 215:103 216:5041 217:1525 218:540 219:333 220:1229 221:555 222:324 223:326 End of report