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 19 May, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 409230 Prefixes after maximum aggregation: 173889 Deaggregation factor: 2.35 Unique aggregates announced to Internet: 199573 Total ASes present in the Internet Routing Table: 41033 Prefixes per ASN: 9.97 Origin-only ASes present in the Internet Routing Table: 33202 Origin ASes announcing only one prefix: 15654 Transit ASes present in the Internet Routing Table: 5481 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.5 Max AS path length visible: 30 Max AS path prepend of ASN (36992) 22 Prefixes from unregistered ASNs in the Routing Table: 365 Unregistered ASNs in the Routing Table: 132 Number of 32-bit ASNs allocated by the RIRs: 2716 Number of 32-bit ASNs visible in the Routing Table: 2350 Prefixes from 32-bit ASNs in the Routing Table: 5960 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 106 Number of addresses announced to Internet: 2550061936 Equivalent to 151 /8s, 254 /16s and 219 /24s Percentage of available address space announced: 68.8 Percentage of allocated address space announced: 68.9 Percentage of available address space allocated: 99.9 Percentage of address space in use by end-sites: 92.7 Total number of prefixes smaller than registry allocations: 174827 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 100170 Total APNIC prefixes after maximum aggregation: 32430 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 96619 Unique aggregates announced from the APNIC address blocks: 39919 APNIC Region origin ASes present in the Internet Routing Table: 4690 APNIC Prefixes per ASN: 20.60 APNIC Region origin ASes announcing only one prefix: 1242 APNIC Region transit ASes present in the Internet Routing Table: 728 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 22 Number of APNIC region 32-bit ASNs visible in the Routing Table: 212 Number of APNIC addresses announced to Internet: 644826304 Equivalent to 38 /8s, 111 /16s and 68 /24s Percentage of available APNIC address space announced: 81.8 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: 151240 Total ARIN prefixes after maximum aggregation: 76711 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 121762 Unique aggregates announced from the ARIN address blocks: 50992 ARIN Region origin ASes present in the Internet Routing Table: 15113 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix: 5744 ARIN Region transit ASes present in the Internet Routing Table: 1595 Average ARIN Region AS path length visible: 4.0 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: 812257216 Equivalent to 48 /8s, 106 /16s and 15 /24s Percentage of available ARIN address space announced: 64.8 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: 101103 Total RIPE prefixes after maximum aggregation: 54239 RIPE Deaggregation factor: 1.86 Prefixes being announced from the RIPE address blocks: 93267 Unique aggregates announced from the RIPE address blocks: 58890 RIPE Region origin ASes present in the Internet Routing Table: 16571 RIPE Prefixes per ASN: 5.63 RIPE Region origin ASes announcing only one prefix: 8060 RIPE Region transit ASes present in the Internet Routing Table: 2649 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 30 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1563 Number of RIPE addresses announced to Internet: 513346312 Equivalent to 30 /8s, 153 /16s and 11 /24s Percentage of available RIPE address space announced: 82.7 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: 41527 Total LACNIC prefixes after maximum aggregation: 8282 LACNIC Deaggregation factor: 5.01 Prefixes being announced from the LACNIC address blocks: 41554 Unique aggregates announced from the LACNIC address blocks: 20491 LACNIC Region origin ASes present in the Internet Routing Table: 1596 LACNIC Prefixes per ASN: 26.04 LACNIC Region origin ASes announcing only one prefix: 439 LACNIC Region transit ASes present in the Internet Routing Table: 300 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 21 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 554 Number of LACNIC addresses announced to Internet: 101104712 Equivalent to 6 /8s, 6 /16s and 188 /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, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 9047 Total AfriNIC prefixes after maximum aggregation: 2163 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 7073 Unique aggregates announced from the AfriNIC address blocks: 2216 AfriNIC Region origin ASes present in the Internet Routing Table: 540 AfriNIC Prefixes per ASN: 13.10 AfriNIC Region origin ASes announcing only one prefix: 169 AfriNIC Region transit ASes present in the Internet Routing Table: 120 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: 5 Number of AfriNIC addresses announced to Internet: 31790080 Equivalent to 1 /8s, 229 /16s and 20 /24s Percentage of available AfriNIC address space announced: 47.4 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 2608 11113 1101 Korea Telecom (KIX) 17974 1924 530 80 PT TELEKOMUNIKASI INDONESIA 7545 1679 301 86 TPG Internet Pty Ltd 4755 1577 385 155 TATA Communications formerly 9829 1296 1085 28 BSNL National Internet Backbo 7552 1173 1062 11 Vietel Corporation 9583 1157 87 500 Sify Limited 4808 1109 2051 318 CNCGROUP IP network: China169 24560 1027 385 167 Bharti Airtel Ltd., Telemedia 9498 964 291 64 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 6389 3414 3807 193 bellsouth.net, inc. 7029 3366 985 158 Windstream Communications Inc 18566 2094 382 177 Covad Communications 1785 1905 681 131 PaeTec Communications, Inc. 20115 1637 1566 619 Charter Communications 22773 1607 2911 121 Cox Communications, Inc. 4323 1584 1042 383 Time Warner Telecom 30036 1417 263 754 Mediacom Communications Corp 7018 1223 10024 821 AT&T WorldNet Services 11492 1186 216 364 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 1673 544 16 Corbina telecom 34984 696 188 172 BILISIM TELEKOM 31148 685 37 9 FreeNet ISP 12479 681 671 67 Uni2 Autonomous System 2118 658 97 14 EUnet/RELCOM Autonomous Syste 20940 658 216 512 Akamai Technologies European 6830 655 2215 426 UPC Distribution Services 8551 568 360 80 Bezeq International 3320 486 8442 402 Deutsche Telekom AG 3292 472 2108 407 TDC Tele Danmark 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 1909 339 180 TVCABLE BOGOTA 28573 1866 1153 59 NET Servicos de Comunicao S.A 6503 1527 418 65 AVANTEL, S.A. 8151 1484 3027 342 UniNet S.A. de C.V. 7303 1435 901 191 Telecom Argentina Stet-France 26615 902 760 32 Tim Brasil S.A. 27947 690 73 95 Telconet S.A 11172 642 91 73 Servicios Alestra S.A de C.V 22047 582 326 15 VTR PUNTO NET S.A. 3816 578 244 98 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 1196 957 12 TEDATA 24863 845 274 35 LINKdotNET AS number 6713 497 649 18 Itissalat Al-MAGHRIB 3741 262 905 223 The Internet Solution 33776 203 12 21 Starcomms Nigeria Limited 12258 197 28 62 Vodacom Internet Company 24835 179 80 8 RAYA Telecom - Egypt 16637 170 666 82 MTN Network Solutions 15706 164 32 6 Sudatel Internet Exchange Aut 29571 157 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 6389 3414 3807 193 bellsouth.net, inc. 7029 3366 985 158 Windstream Communications Inc 4766 2608 11113 1101 Korea Telecom (KIX) 18566 2094 382 177 Covad Communications 17974 1924 530 80 PT TELEKOMUNIKASI INDONESIA 10620 1909 339 180 TVCABLE BOGOTA 1785 1905 681 131 PaeTec Communications, Inc. 28573 1866 1153 59 NET Servicos de Comunicao S.A 7545 1679 301 86 TPG Internet Pty Ltd 8402 1673 544 16 Corbina telecom 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 3366 3208 Windstream Communications Inc 18566 2094 1917 Covad Communications 17974 1924 1844 PT TELEKOMUNIKASI INDONESIA 28573 1866 1807 NET Servicos de Comunicao S.A 1785 1905 1774 PaeTec Communications, Inc. 10620 1909 1729 TVCABLE BOGOTA 8402 1673 1657 Corbina telecom 7545 1679 1593 TPG Internet Pty Ltd 4766 2608 1507 Korea Telecom (KIX) 22773 1607 1486 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 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 32873 UNALLOCATED 12.46.102.0/24 10912 InterNAP Network Ser 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 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 27.112.114.0/24 23884 Proimage Engineering and Comm 41.222.79.0/24 36938 >>UNKNOWN<< 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 /10:29 /11:81 /12:235 /13:460 /14:832 /15:1495 /16:12258 /17:6266 /18:10598 /19:20694 /20:29440 /21:30649 /22:40198 /23:38324 /24:213890 /25:1218 /26:1450 /27:809 /28:168 /29:68 /30:17 /31:0 /32:20 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 3023 3366 Windstream Communications Inc 6389 2133 3414 bellsouth.net, inc. 18566 2043 2094 Covad Communications 10620 1735 1909 TVCABLE BOGOTA 8402 1651 1673 Corbina telecom 30036 1358 1417 Mediacom Communications Corp 6503 1285 1527 AVANTEL, S.A. 11492 1149 1186 Cable One 7011 1070 1185 Citizens Utilities 1785 1063 1905 PaeTec Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:542 2:686 4:13 5:11 6:3 8:414 12:2005 13:1 14:610 15:12 16:3 17:5 20:23 23:172 24:1772 27:1286 31:961 32:57 33:2 34:2 36:8 37:469 38:808 40:121 41:3097 42:133 44:3 46:1422 47:3 49:404 50:550 52:13 54:10 55:9 56:3 57:33 58:958 59:484 60:253 61:1228 62:995 63:2051 64:4179 65:2252 66:4473 67:2011 68:1164 69:3202 70:905 71:489 72:1823 74:2598 75:491 76:327 77:941 78:982 79:488 80:1211 81:911 82:664 83:553 84:487 85:1221 86:436 87:917 88:333 89:1708 90:290 91:4845 92:547 93:1321 94:1527 95:1181 96:367 97:313 98:878 99:38 100:7 101:190 103:1081 106:103 107:185 108:295 109:1329 110:765 111:921 112:410 113:603 114:623 115:834 116:932 117:715 118:910 119:1229 120:355 121:699 122:1658 123:1103 124:1382 125:1252 128:561 129:195 130:250 131:634 132:177 133:22 134:248 135:62 136:214 137:240 138:359 139:183 140:493 141:244 142:414 143:566 144:524 145:70 146:503 147:297 148:770 149:296 150:191 151:177 152:469 153:172 154:12 155:402 156:223 157:382 158:183 159:551 160:340 161:265 162:347 163:188 164:606 165:398 166:571 167:469 168:863 169:126 170:868 171:131 172:4 173:1743 174:580 175:431 176:586 177:754 178:1369 180:1214 181:83 182:1000 183:296 184:494 185:1 186:2302 187:1079 188:1275 189:1806 190:5511 192:5999 193:5444 194:4181 195:3219 196:1289 197:136 198:3658 199:4628 200:5840 201:1935 202:8584 203:8597 204:4335 205:2544 206:2765 207:2801 208:4062 209:3625 210:2754 211:1518 212:2030 213:1941 214:870 215:103 216:5096 217:1549 218:544 219:314 220:1238 221:557 222:324 223:337 End of report