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 Jan, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 393115 Prefixes after maximum aggregation: 169030 Deaggregation factor: 2.33 Unique aggregates announced to Internet: 191068 Total ASes present in the Internet Routing Table: 39874 Prefixes per ASN: 9.86 Origin-only ASes present in the Internet Routing Table: 32616 Origin ASes announcing only one prefix: 15498 Transit ASes present in the Internet Routing Table: 5384 Transit-only ASes present in the Internet Routing Table: 140 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 2141 Unregistered ASNs in the Routing Table: 1089 Number of 32-bit ASNs allocated by the RIRs: 2200 Number of 32-bit ASNs visible in the Routing Table: 1874 Prefixes from 32-bit ASNs in the Routing Table: 4540 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 118 Number of addresses announced to Internet: 2511238896 Equivalent to 149 /8s, 174 /16s and 118 /24s Percentage of available address space announced: 67.8 Percentage of allocated address space announced: 67.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.9 Total number of prefixes smaller than registry allocations: 166200 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 97520 Total APNIC prefixes after maximum aggregation: 31610 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 93822 Unique aggregates announced from the APNIC address blocks: 38983 APNIC Region origin ASes present in the Internet Routing Table: 4637 APNIC Prefixes per ASN: 20.23 APNIC Region origin ASes announcing only one prefix: 1240 APNIC Region transit ASes present in the Internet Routing Table: 726 Average APNIC Region AS path length visible: 4.3 Max APNIC Region AS path length visible: 19 Number of APNIC region 32-bit ASNs visible in the Routing Table: 134 Number of APNIC addresses announced to Internet: 635145824 Equivalent to 37 /8s, 219 /16s and 142 /24s Percentage of available APNIC address space announced: 80.5 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: 147631 Total ARIN prefixes after maximum aggregation: 75140 ARIN Deaggregation factor: 1.96 Prefixes being announced from the ARIN address blocks: 119589 Unique aggregates announced from the ARIN address blocks: 49078 ARIN Region origin ASes present in the Internet Routing Table: 14859 ARIN Prefixes per ASN: 8.05 ARIN Region origin ASes announcing only one prefix: 5677 ARIN Region transit ASes present in the Internet Routing Table: 1587 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: 14 Number of ARIN addresses announced to Internet: 805016256 Equivalent to 47 /8s, 251 /16s and 146 /24s Percentage of available ARIN address space announced: 64.0 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: 97168 Total RIPE prefixes after maximum aggregation: 52047 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 89044 Unique aggregates announced from the RIPE address blocks: 55638 RIPE Region origin ASes present in the Internet Routing Table: 16253 RIPE Prefixes per ASN: 5.48 RIPE Region origin ASes announcing only one prefix: 7981 RIPE Region transit ASes present in the Internet Routing Table: 2588 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: 1301 Number of RIPE addresses announced to Internet: 497788360 Equivalent to 29 /8s, 171 /16s and 165 /24s Percentage of available RIPE address space announced: 80.2 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: 37373 Total LACNIC prefixes after maximum aggregation: 8078 LACNIC Deaggregation factor: 4.63 Prefixes being announced from the LACNIC address blocks: 36993 Unique aggregates announced from the LACNIC address blocks: 19328 LACNIC Region origin ASes present in the Internet Routing Table: 1563 LACNIC Prefixes per ASN: 23.67 LACNIC Region origin ASes announcing only one prefix: 440 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: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 421 Number of LACNIC addresses announced to Internet: 95480968 Equivalent to 5 /8s, 176 /16s and 236 /24s Percentage of available LACNIC address space announced: 63.2 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: 8721 Total AfriNIC prefixes after maximum aggregation: 2083 AfriNIC Deaggregation factor: 4.19 Prefixes being announced from the AfriNIC address blocks: 6744 Unique aggregates announced from the AfriNIC address blocks: 2086 AfriNIC Region origin ASes present in the Internet Routing Table: 506 AfriNIC Prefixes per ASN: 13.33 AfriNIC Region origin ASes announcing only one prefix: 160 AfriNIC Region transit ASes present in the Internet Routing Table: 118 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: 30813184 Equivalent to 1 /8s, 214 /16s and 44 /24s Percentage of available AfriNIC address space announced: 45.9 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 2473 11101 975 Korea Telecom (KIX) 17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA 7545 1638 303 86 TPG Internet Pty Ltd 4755 1524 385 154 TATA Communications formerly 7552 1424 1064 7 Vietel Corporation 9829 1163 989 28 BSNL National Internet Backbo 9583 1119 81 490 Sify Limited 4808 1100 2050 311 CNCGROUP IP network: China169 24560 1007 383 166 Bharti Airtel Ltd., Telemedia 18101 946 130 155 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 6389 3449 3807 202 bellsouth.net, inc. 7029 3223 1016 199 Windstream Communications Inc 18566 2093 382 177 Covad Communications 1785 1865 679 122 PaeTec Communications, Inc. 20115 1620 1553 615 Charter Communications 4323 1607 1062 382 Time Warner Telecom 30036 1487 266 707 Mediacom Communications Corp 22773 1486 2909 108 Cox Communications, Inc. 19262 1386 4683 400 Verizon Global Networks 7018 1298 7008 849 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 1714 480 15 Corbina telecom 2118 1241 99 14 EUnet/RELCOM Autonomous Syste 15557 1095 2161 64 LDCOM NETWORKS 6830 644 1928 413 UPC Distribution Services 34984 638 188 172 BILISIM TELEKOM 31148 613 35 9 FreeNet ISP 20940 571 185 453 Akamai Technologies European 12479 557 639 55 Uni2 Autonomous System 8551 528 360 81 Bezeq International 3320 517 8157 393 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 1723 321 167 TVCABLE BOGOTA 28573 1616 1068 77 NET Servicos de Comunicao S.A 8151 1460 2999 342 UniNet S.A. de C.V. 7303 1256 756 179 Telecom Argentina Stet-France 27947 642 73 96 Telconet S.A 22047 581 322 17 VTR PUNTO NET S.A. 7738 551 1050 31 Telecomunicacoes da Bahia S.A 3816 550 238 92 Empresa Nacional de Telecomun 6503 539 434 68 AVANTEL, S.A. 11172 532 85 106 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 8452 1031 958 13 TEDATA 24863 797 146 36 LINKdotNET AS number 6713 485 649 18 Itissalat Al-MAGHRIB 3741 280 939 229 The Internet Solution 15706 239 32 6 Sudatel Internet Exchange Aut 33776 234 13 14 Starcomms Nigeria Limited 29571 214 17 12 Ci Telecom Autonomous system 12258 196 28 61 Vodacom Internet Company 24835 189 80 8 RAYA Telecom - Egypt 16637 160 664 82 MTN Network Solutions 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 3449 3807 202 bellsouth.net, inc. 7029 3223 1016 199 Windstream Communications Inc 4766 2473 11101 975 Korea Telecom (KIX) 18566 2093 382 177 Covad Communications 1785 1865 679 122 PaeTec Communications, Inc. 10620 1723 321 167 TVCABLE BOGOTA 17974 1715 503 36 PT TELEKOMUNIKASI INDONESIA 8402 1714 480 15 Corbina telecom 7545 1638 303 86 TPG Internet Pty Ltd 20115 1620 1553 615 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 3223 3024 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1865 1743 PaeTec Communications, Inc. 8402 1714 1699 Corbina telecom 17974 1715 1679 PT TELEKOMUNIKASI INDONESIA 10620 1723 1556 TVCABLE BOGOTA 7545 1638 1552 TPG Internet Pty Ltd 28573 1616 1539 NET Servicos de Comunicao S.A 4766 2473 1498 Korea Telecom (KIX) 7552 1424 1417 Vietel Corporation 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 37.60.208.0/20 31214 TIS-DIALOG Autonomous system 37.61.144.0/20 34977 PROCONO S.A. 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 /11:80 /12:232 /13:458 /14:817 /15:1462 /16:12139 /17:6159 /18:10248 /19:20303 /20:28150 /21:29098 /22:39196 /23:36683 /24:204402 /25:1171 /26:1422 /27:782 /28:168 /29:55 /30:14 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2843 3223 Windstream Communications Inc 6389 2120 3449 bellsouth.net, inc. 18566 2042 2093 Covad Communications 8402 1693 1714 Corbina telecom 10620 1618 1723 TVCABLE BOGOTA 30036 1444 1487 Mediacom Communications Corp 11492 1116 1153 Cable One 1785 1067 1865 PaeTec Communications, Inc. 15557 1046 1095 LDCOM NETWORKS 7011 1031 1148 Citizens Utilities Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:501 2:464 4:15 5:1 6:3 8:377 12:1950 13:1 14:583 15:11 16:3 17:6 20:9 23:112 24:1675 27:1178 31:821 32:65 33:2 34:2 36:8 37:102 38:794 40:114 41:2937 42:87 43:1 44:3 46:1204 47:3 49:319 50:517 52:13 54:1 55:7 56:2 57:41 58:948 59:491 60:345 61:1180 62:920 63:1978 64:4108 65:2286 66:4404 67:2022 68:1155 69:3142 70:920 71:428 72:1799 74:2653 75:445 76:320 77:966 78:904 79:500 80:1189 81:870 82:559 83:533 84:586 85:1153 86:743 87:905 88:341 89:1583 90:257 91:4432 92:531 93:1557 94:1363 95:1104 96:425 97:299 98:789 99:38 100:18 101:132 103:652 106:10 107:134 108:125 109:1467 110:688 111:839 112:429 113:525 114:601 115:757 116:851 117:727 118:901 119:1247 120:355 121:681 122:1630 123:1061 124:1338 125:1341 128:537 129:193 130:213 131:588 132:160 133:21 134:231 135:59 136:213 137:152 138:288 139:145 140:491 141:260 142:377 143:400 144:510 145:68 146:486 147:227 148:640 149:281 150:165 151:193 152:446 153:170 154:7 155:400 156:210 157:367 158:154 159:510 160:320 161:221 162:339 163:188 164:530 165:391 166:561 167:457 168:852 169:147 170:835 171:105 172:4 173:1779 174:584 175:416 176:371 177:464 178:1202 180:1227 181:43 182:693 183:274 184:404 185:1 186:1503 187:840 188:980 189:1164 190:5373 192:5988 193:5459 194:4198 195:3384 196:1290 197:168 198:3621 199:4324 200:5640 201:1697 202:8410 203:8602 204:4339 205:2429 206:2746 207:2803 208:4010 209:3544 210:2745 211:1474 212:1974 213:1825 214:847 215:95 216:4975 217:1473 218:557 219:341 220:1250 221:558 222:324 223:270 End of report