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 26 May, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 411471 Prefixes after maximum aggregation: 174357 Deaggregation factor: 2.36 Unique aggregates announced to Internet: 200214 Total ASes present in the Internet Routing Table: 41122 Prefixes per ASN: 10.01 Origin-only ASes present in the Internet Routing Table: 33227 Origin ASes announcing only one prefix: 15654 Transit ASes present in the Internet Routing Table: 5503 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: 29 Max AS path prepend of ASN ( 2115) 25 Prefixes from unregistered ASNs in the Routing Table: 385 Unregistered ASNs in the Routing Table: 134 Number of 32-bit ASNs allocated by the RIRs: 2738 Number of 32-bit ASNs visible in the Routing Table: 2392 Prefixes from 32-bit ASNs in the Routing Table: 6078 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 116 Number of addresses announced to Internet: 2553429168 Equivalent to 152 /8s, 50 /16s and 60 /24s Percentage of available address space announced: 68.9 Percentage of allocated address space announced: 69.0 Percentage of available address space allocated: 99.9 Percentage of address space in use by end-sites: 92.6 Total number of prefixes smaller than registry allocations: 175392 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 100470 Total APNIC prefixes after maximum aggregation: 32508 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 96903 Unique aggregates announced from the APNIC address blocks: 40056 APNIC Region origin ASes present in the Internet Routing Table: 4698 APNIC Prefixes per ASN: 20.63 APNIC Region origin ASes announcing only one prefix: 1245 APNIC Region transit ASes present in the Internet Routing Table: 732 Average APNIC Region AS path length visible: 4.7 Max APNIC Region AS path length visible: 25 Number of APNIC region 32-bit ASNs visible in the Routing Table: 217 Number of APNIC addresses announced to Internet: 646675008 Equivalent to 38 /8s, 139 /16s and 122 /24s Percentage of available APNIC address space announced: 82.0 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: 151368 Total ARIN prefixes after maximum aggregation: 76847 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 121901 Unique aggregates announced from the ARIN address blocks: 51066 ARIN Region origin ASes present in the Internet Routing Table: 15130 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix: 5742 ARIN Region transit ASes present in the Internet Routing Table: 1602 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: 17 Number of ARIN addresses announced to Internet: 812317120 Equivalent to 48 /8s, 106 /16s and 249 /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: 102332 Total RIPE prefixes after maximum aggregation: 54493 RIPE Deaggregation factor: 1.88 Prefixes being announced from the RIPE address blocks: 94402 Unique aggregates announced from the RIPE address blocks: 59288 RIPE Region origin ASes present in the Internet Routing Table: 16590 RIPE Prefixes per ASN: 5.69 RIPE Region origin ASes announcing only one prefix: 8060 RIPE Region transit ASes present in the Internet Routing Table: 2655 Average RIPE Region AS path length visible: 5.0 Max RIPE Region AS path length visible: 29 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1591 Number of RIPE addresses announced to Internet: 514347400 Equivalent to 30 /8s, 168 /16s and 81 /24s Percentage of available RIPE address space announced: 82.9 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: 41693 Total LACNIC prefixes after maximum aggregation: 8266 LACNIC Deaggregation factor: 5.04 Prefixes being announced from the LACNIC address blocks: 41798 Unique aggregates announced from the LACNIC address blocks: 20439 LACNIC Region origin ASes present in the Internet Routing Table: 1597 LACNIC Prefixes per ASN: 26.17 LACNIC Region origin ASes announcing only one prefix: 440 LACNIC Region transit ASes present in the Internet Routing Table: 308 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 21 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 563 Number of LACNIC addresses announced to Internet: 101399432 Equivalent to 6 /8s, 11 /16s and 59 /24s Percentage of available LACNIC address space announced: 67.2 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: 9337 Total AfriNIC prefixes after maximum aggregation: 2175 AfriNIC Deaggregation factor: 4.29 Prefixes being announced from the AfriNIC address blocks: 7389 Unique aggregates announced from the AfriNIC address blocks: 2197 AfriNIC Region origin ASes present in the Internet Routing Table: 541 AfriNIC Prefixes per ASN: 13.66 AfriNIC Region origin ASes announcing only one prefix: 167 AfriNIC Region transit ASes present in the Internet Routing Table: 119 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: 4 Number of AfriNIC addresses announced to Internet: 31746304 Equivalent to 1 /8s, 228 /16s and 105 /24s Percentage of available AfriNIC address space announced: 47.3 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 2635 11114 1120 Korea Telecom (KIX) 17974 1925 530 80 PT TELEKOMUNIKASI INDONESIA 7545 1671 301 87 TPG Internet Pty Ltd 4755 1577 385 155 TATA Communications formerly 9829 1298 1085 28 BSNL National Internet Backbo 7552 1173 1062 11 Vietel Corporation 9583 1156 87 503 Sify Limited 4808 1105 2050 317 CNCGROUP IP network: China169 24560 1027 385 167 Bharti Airtel Ltd., Telemedia 9498 965 291 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 3413 3807 193 bellsouth.net, inc. 7029 3335 986 159 Windstream Communications Inc 18566 2093 382 181 Covad Communications 1785 1909 681 131 PaeTec Communications, Inc. 20115 1639 1566 616 Charter Communications 22773 1608 2911 121 Cox Communications, Inc. 4323 1566 1040 379 Time Warner Telecom 30036 1401 260 760 Mediacom Communications Corp 7018 1224 10031 821 AT&T WorldNet Services 7011 1188 317 681 Citizens Utilities 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 1718 544 16 Corbina telecom 2118 1312 97 14 EUnet/RELCOM Autonomous Syste 34984 697 188 172 BILISIM TELEKOM 12479 692 678 70 Uni2 Autonomous System 31148 684 37 9 FreeNet ISP 20940 669 221 522 Akamai Technologies European 6830 655 2215 426 UPC Distribution Services 8551 577 362 71 Bezeq International 3320 489 8442 402 Deutsche Telekom AG 3292 471 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 1917 340 202 TVCABLE BOGOTA 28573 1891 1171 59 NET Servicos de Comunicao S.A 6503 1539 418 65 AVANTEL, S.A. 8151 1483 3054 337 UniNet S.A. de C.V. 7303 1435 901 191 Telecom Argentina Stet-France 26615 902 760 32 Tim Brasil S.A. 27947 689 73 95 Telconet S.A 11172 642 91 73 Servicios Alestra S.A de C.V 3816 584 247 89 Empresa Nacional de Telecomun 22047 582 326 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 1367 957 12 TEDATA 24863 846 274 35 LINKdotNET AS number 6713 496 649 18 Itissalat Al-MAGHRIB 24835 321 80 8 RAYA Telecom - Egypt 3741 262 905 223 The Internet Solution 33776 205 12 21 Starcomms Nigeria Limited 12258 197 28 62 Vodacom Internet Company 16637 171 666 83 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 3413 3807 193 bellsouth.net, inc. 7029 3335 986 159 Windstream Communications Inc 4766 2635 11114 1120 Korea Telecom (KIX) 18566 2093 382 181 Covad Communications 17974 1925 530 80 PT TELEKOMUNIKASI INDONESIA 10620 1917 340 202 TVCABLE BOGOTA 1785 1909 681 131 PaeTec Communications, Inc. 28573 1891 1171 59 NET Servicos de Comunicao S.A 8402 1718 544 16 Corbina telecom 7545 1671 301 87 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 7029 3335 3176 Windstream Communications Inc 18566 2093 1912 Covad Communications 17974 1925 1845 PT TELEKOMUNIKASI INDONESIA 28573 1891 1832 NET Servicos de Comunicao S.A 1785 1909 1778 PaeTec Communications, Inc. 10620 1917 1715 TVCABLE BOGOTA 8402 1718 1702 Corbina telecom 7545 1671 1584 TPG Internet Pty Ltd 4766 2635 1515 Korea Telecom (KIX) 22773 1608 1487 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 5.44.40.0/21 23456 32-bit ASN transition 5.44.96.0/22 31342 AS from Clanotopia IT-Service 5.44.100.0/22 31342 AS from Clanotopia IT-Service 5.44.104.0/22 29066 velia.net 5.44.184.0/21 23456 32-bit ASN transition 5.44.216.0/21 51109 CAMELHOST SIA 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 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 /13:462 /14:832 /15:1502 /16:12299 /17:6299 /18:10615 /19:20778 /20:29474 /21:30834 /22:40476 /23:38421 /24:215321 /25:1229 /26:1457 /27:821 /28:169 /29:67 /30:17 /31:0 /32:22 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2995 3335 Windstream Communications Inc 6389 2132 3413 bellsouth.net, inc. 18566 2042 2093 Covad Communications 10620 1734 1917 TVCABLE BOGOTA 8402 1696 1718 Corbina telecom 30036 1342 1401 Mediacom Communications Corp 6503 1293 1539 AVANTEL, S.A. 8452 1169 1367 TEDATA 11492 1149 1186 Cable One 7011 1073 1188 Citizens Utilities Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:547 2:744 4:13 5:35 6:3 8:420 12:2006 13:1 14:618 15:12 16:3 17:5 20:23 23:173 24:1773 27:1319 31:1025 32:57 33:2 34:2 36:8 37:623 38:807 40:121 41:3203 42:137 44:3 46:1415 47:3 49:452 50:548 52:13 54:12 55:9 56:3 57:33 58:961 59:496 60:254 61:1217 62:1003 63:2036 64:4237 65:2249 66:4480 67:2008 68:1160 69:3196 70:933 71:494 72:1824 74:2599 75:493 76:328 77:952 78:984 79:492 80:1222 81:936 82:659 83:543 84:491 85:1221 86:438 87:907 88:340 89:1718 90:289 91:4854 92:550 93:1333 94:1517 95:1171 96:368 97:313 98:860 99:38 100:7 101:192 103:1105 106:104 107:185 108:307 109:1342 110:753 111:923 112:409 113:591 114:628 115:838 116:936 117:724 118:906 119:1236 120:357 121:698 122:1663 123:1103 124:1379 125:1254 128:554 129:195 130:245 131:631 132:287 133:22 134:248 135:59 136:214 137:187 138:359 139:186 140:496 141:243 142:417 143:555 144:535 145:70 146:506 147:286 148:775 149:298 150:191 151:177 152:468 153:172 154:12 155:401 156:223 157:381 158:186 159:556 160:340 161:265 162:345 163:190 164:606 165:397 166:593 167:466 168:862 169:126 170:875 171:131 172:4 173:1746 174:578 175:431 176:526 177:797 178:1380 180:1211 181:85 182:1005 183:226 184:497 185:1 186:2284 187:1098 188:1276 189:1804 190:5536 192:5996 193:5562 194:4526 195:3418 196:1208 197:148 198:3659 199:4650 200:5857 201:1940 202:8585 203:8607 204:4340 205:2550 206:2763 207:2802 208:4059 209:3629 210:2766 211:1534 212:2031 213:1934 214:863 215:103 216:5096 217:1550 218:553 219:314 220:1240 221:563 222:325 223:359 End of report