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, 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 12 Nov, 2011 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 381658 Prefixes after maximum aggregation: 166539 Deaggregation factor: 2.29 Unique aggregates announced to Internet: 187635 Total ASes present in the Internet Routing Table: 39286 Prefixes per ASN: 9.71 Origin-only ASes present in the Internet Routing Table: 32382 Origin ASes announcing only one prefix: 15485 Transit ASes present in the Internet Routing Table: 5290 Transit-only ASes present in the Internet Routing Table: 133 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: 1677 Unregistered ASNs in the Routing Table: 881 Number of 32-bit ASNs allocated by the RIRs: 1940 Number of 32-bit ASNs visible in the Routing Table: 1614 Prefixes from 32-bit ASNs in the Routing Table: 3721 Special use prefixes present in the Routing Table: 3 Prefixes being announced from unallocated address space: 87 Number of addresses announced to Internet: 2490142976 Equivalent to 148 /8s, 108 /16s and 145 /24s Percentage of available address space announced: 67.2 Percentage of allocated address space announced: 67.2 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.6 Total number of prefixes smaller than registry allocations: 161365 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 95008 Total APNIC prefixes after maximum aggregation: 31143 APNIC Deaggregation factor: 3.05 Prefixes being announced from the APNIC address blocks: 91456 Unique aggregates announced from the APNIC address blocks: 38380 APNIC Region origin ASes present in the Internet Routing Table: 4602 APNIC Prefixes per ASN: 19.87 APNIC Region origin ASes announcing only one prefix: 1269 APNIC Region transit ASes present in the Internet Routing Table: 720 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 21 Number of APNIC region 32-bit ASNs visible in the Routing Table: 107 Number of APNIC addresses announced to Internet: 629934432 Equivalent to 37 /8s, 140 /16s and 9 /24s Percentage of available APNIC address space announced: 79.9 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: 146101 Total ARIN prefixes after maximum aggregation: 74287 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 118152 Unique aggregates announced from the ARIN address blocks: 48520 ARIN Region origin ASes present in the Internet Routing Table: 14740 ARIN Prefixes per ASN: 8.02 ARIN Region origin ASes announcing only one prefix: 5637 ARIN Region transit ASes present in the Internet Routing Table: 1565 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: 12 Number of ARIN addresses announced to Internet: 804207808 Equivalent to 47 /8s, 239 /16s and 60 /24s Percentage of available ARIN address space announced: 63.9 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: 92019 Total RIPE prefixes after maximum aggregation: 51066 RIPE Deaggregation factor: 1.80 Prefixes being announced from the RIPE address blocks: 84487 Unique aggregates announced from the RIPE address blocks: 54587 RIPE Region origin ASes present in the Internet Routing Table: 16107 RIPE Prefixes per ASN: 5.25 RIPE Region origin ASes announcing only one prefix: 7977 RIPE Region transit ASes present in the Internet Routing Table: 2539 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: 1119 Number of RIPE addresses announced to Internet: 491921856 Equivalent to 29 /8s, 82 /16s and 33 /24s Percentage of available RIPE address space announced: 79.2 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: 36135 Total LACNIC prefixes after maximum aggregation: 7921 LACNIC Deaggregation factor: 4.56 Prefixes being announced from the LACNIC address blocks: 35567 Unique aggregates announced from the LACNIC address blocks: 18567 LACNIC Region origin ASes present in the Internet Routing Table: 1549 LACNIC Prefixes per ASN: 22.96 LACNIC Region origin ASes announcing only one prefix: 446 LACNIC Region transit ASes present in the Internet Routing Table: 286 Average LACNIC Region AS path length visible: 4.5 Max LACNIC Region AS path length visible: 18 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 372 Number of LACNIC addresses announced to Internet: 92919936 Equivalent to 5 /8s, 137 /16s and 216 /24s Percentage of available LACNIC address space announced: 61.5 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: 8487 Total AfriNIC prefixes after maximum aggregation: 2043 AfriNIC Deaggregation factor: 4.15 Prefixes being announced from the AfriNIC address blocks: 6576 Unique aggregates announced from the AfriNIC address blocks: 2022 AfriNIC Region origin ASes present in the Internet Routing Table: 496 AfriNIC Prefixes per ASN: 13.26 AfriNIC Region origin ASes announcing only one prefix: 156 AfriNIC Region transit ASes present in the Internet Routing Table: 106 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: 27687168 Equivalent to 1 /8s, 166 /16s and 121 /24s Percentage of available AfriNIC address space announced: 41.3 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 2510 11108 968 Korea Telecom (KIX) 17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1625 303 88 TPG Internet Pty Ltd 4755 1544 377 172 TATA Communications formerly 7552 1394 1064 7 Vietel Corporation 9829 1166 989 28 BSNL National Internet Backbo 9583 1116 83 512 Sify Limited 4808 1093 2095 313 CNCGROUP IP network: China169 24560 964 343 218 Bharti Airtel Ltd., Telemedia 18101 953 119 149 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 3544 3814 219 bellsouth.net, inc. 7029 2918 1016 199 Windstream Communications Inc 18566 2093 383 177 Covad Communications 1785 1847 680 122 PaeTec Communications, Inc. 4323 1622 1077 387 Time Warner Telecom 20115 1595 1545 624 Charter Communications 22773 1495 2909 102 Cox Communications, Inc. 30036 1415 255 671 Mediacom Communications Corp 19262 1395 4728 400 Verizon Global Networks 7018 1314 7029 862 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 1519 416 14 Corbina telecom 6830 646 1927 411 UPC Distribution Services 34984 596 110 184 BILISIM TELEKOM 20940 551 182 433 Akamai Technologies European 3320 503 8168 388 Deutsche Telekom AG 3292 479 2074 407 TDC Tele Danmark 12479 479 596 9 Uni2 Autonomous System 8866 463 133 26 Bulgarian Telecommunication C 31148 408 22 114 FreeNet ISP 8551 402 354 43 Bezeq International 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 1706 316 157 TVCABLE BOGOTA 28573 1490 1043 79 NET Servicos de Comunicao S.A 8151 1446 2937 346 UniNet S.A. de C.V. 7303 1238 751 173 Telecom Argentina Stet-France 27947 591 72 84 Telconet S.A 22047 580 322 17 VTR PUNTO NET S.A. 6503 566 434 68 AVANTEL, S.A. 7738 553 1050 31 Telecomunicacoes da Bahia S.A 3816 539 234 96 Empresa Nacional de Telecomun 11172 525 85 95 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 24863 716 146 36 LINKdotNET AS number 8452 665 446 12 TEDATA 15475 444 74 8 Nile Online 36992 285 415 20 Etisalat MISR 3741 281 939 230 The Internet Solution 15706 240 32 6 Sudatel Internet Exchange Aut 33776 239 13 8 Starcomms Nigeria Limited 6713 235 519 14 Itissalat Al-MAGHRIB 29571 218 17 13 Ci Telecom Autonomous system 12258 196 28 57 Vodacom Internet Company 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 3544 3814 219 bellsouth.net, inc. 7029 2918 1016 199 Windstream Communications Inc 4766 2510 11108 968 Korea Telecom (KIX) 18566 2093 383 177 Covad Communications 1785 1847 680 122 PaeTec Communications, Inc. 10620 1706 316 157 TVCABLE BOGOTA 17974 1649 511 36 PT TELEKOMUNIKASI INDONESIA 7545 1625 303 88 TPG Internet Pty Ltd 4323 1622 1077 387 Time Warner Telecom 20115 1595 1545 624 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 2918 2719 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1847 1725 PaeTec Communications, Inc. 17974 1649 1613 PT TELEKOMUNIKASI INDONESIA 10620 1706 1549 TVCABLE BOGOTA 4766 2510 1542 Korea Telecom (KIX) 7545 1625 1537 TPG Internet Pty Ltd 8402 1519 1505 Corbina telecom 28573 1490 1411 NET Servicos de Comunicao S.A 22773 1495 1393 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 128.0.0.0/16 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 24.225.128.0/18 36377 Comcast Telecommunications, I 24.225.192.0/23 36377 Comcast Telecommunications, I 24.225.192.0/18 36377 Comcast Telecommunications, I 24.225.224.0/21 36377 Comcast Telecommunications, I 24.225.237.0/24 36377 Comcast Telecommunications, I 24.225.248.0/21 36377 Comcast Telecommunications, I 41.222.79.0/24 37345 MEDALLION Communications 41.223.92.0/22 36936 >>UNKNOWN<< 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 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 /11:81 /12:236 /13:465 /14:808 /15:1422 /16:12006 /17:6064 /18:10089 /19:19963 /20:27615 /21:27723 /22:37556 /23:35208 /24:198912 /25:1154 /26:1364 /27:759 /28:166 /29:4 /30:0 /31:0 /32:5 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2548 2918 Windstream Communications Inc 6389 2185 3544 bellsouth.net, inc. 18566 2042 2093 Covad Communications 10620 1601 1706 TVCABLE BOGOTA 8402 1495 1519 Corbina telecom 30036 1375 1415 Mediacom Communications Corp 11492 1117 1154 Cable One 1785 1057 1847 PaeTec Communications, Inc. 7011 1051 1168 Citizens Utilities 22773 958 1495 Cox Communications, Inc. Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:408 2:484 4:15 5:1 6:3 8:356 12:1966 13:1 14:547 15:11 16:3 17:7 20:9 23:63 24:1683 27:1031 31:675 32:65 33:2 34:2 36:4 38:756 39:1 40:110 41:2681 42:59 43:1 44:3 46:1050 47:3 49:298 50:449 52:13 55:8 56:2 57:47 58:920 59:496 60:362 61:1131 62:1094 63:1970 64:4065 65:2302 66:4319 67:2019 68:1174 69:3142 70:905 71:387 72:1820 74:2633 75:430 76:319 77:881 78:887 79:479 80:1133 81:836 82:516 83:518 84:621 85:1154 86:400 87:931 88:356 89:1591 90:235 91:4257 92:536 93:1553 94:1303 95:1089 96:427 97:286 98:943 99:37 101:233 103:459 106:7 107:91 108:76 109:1184 110:671 111:807 112:362 113:480 114:623 115:715 116:881 117:722 118:889 119:1266 120:345 121:681 122:1574 123:1019 124:1353 125:1355 128:246 129:184 130:164 131:616 132:151 133:21 134:221 135:54 136:213 137:142 138:287 139:121 140:494 141:253 142:389 143:401 144:495 145:64 146:470 147:219 148:638 149:270 150:164 151:194 152:449 153:172 154:7 155:387 156:208 157:361 158:155 159:489 160:331 161:214 162:374 163:173 164:506 165:368 166:544 167:443 168:820 169:145 170:881 171:87 172:4 173:1742 174:702 175:432 176:297 177:367 178:1100 180:1145 181:38 182:652 183:236 184:393 185:1 186:1401 187:774 188:963 189:1157 190:5188 192:5923 193:5050 194:3554 195:3109 196:1268 197:170 198:3617 199:4206 200:5475 201:1704 202:8553 203:8538 204:4311 205:2370 206:2668 207:2816 208:4025 209:3584 210:2711 211:1463 212:2074 213:1804 214:777 215:96 216:4930 217:1601 218:560 219:343 220:1257 221:515 222:324 223:272 End of report