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 28 Jan, 2012 Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 394446 Prefixes after maximum aggregation: 169250 Deaggregation factor: 2.33 Unique aggregates announced to Internet: 191523 Total ASes present in the Internet Routing Table: 39956 Prefixes per ASN: 9.87 Origin-only ASes present in the Internet Routing Table: 32670 Origin ASes announcing only one prefix: 15524 Transit ASes present in the Internet Routing Table: 5393 Transit-only ASes present in the Internet Routing Table: 138 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 34 Max AS path prepend of ASN (38964) 31 Prefixes from unregistered ASNs in the Routing Table: 320 Unregistered ASNs in the Routing Table: 120 Number of 32-bit ASNs allocated by the RIRs: 2225 Number of 32-bit ASNs visible in the Routing Table: 1893 Prefixes from 32-bit ASNs in the Routing Table: 4552 Special use prefixes present in the Routing Table: 2 Prefixes being announced from unallocated address space: 124 Number of addresses announced to Internet: 2512489808 Equivalent to 149 /8s, 193 /16s and 141 /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: 92.0 Total number of prefixes smaller than registry allocations: 166987 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 97720 Total APNIC prefixes after maximum aggregation: 31635 APNIC Deaggregation factor: 3.09 Prefixes being announced from the APNIC address blocks: 94001 Unique aggregates announced from the APNIC address blocks: 39037 APNIC Region origin ASes present in the Internet Routing Table: 4647 APNIC Prefixes per ASN: 20.23 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: 4.3 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 138 Number of APNIC addresses announced to Internet: 635145056 Equivalent to 37 /8s, 219 /16s and 139 /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: 147868 Total ARIN prefixes after maximum aggregation: 75244 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 119897 Unique aggregates announced from the ARIN address blocks: 49172 ARIN Region origin ASes present in the Internet Routing Table: 14873 ARIN Prefixes per ASN: 8.06 ARIN Region origin ASes announcing only one prefix: 5685 ARIN Region transit ASes present in the Internet Routing Table: 1582 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: 805162560 Equivalent to 47 /8s, 253 /16s and 206 /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: 97463 Total RIPE prefixes after maximum aggregation: 52172 RIPE Deaggregation factor: 1.87 Prefixes being announced from the RIPE address blocks: 89393 Unique aggregates announced from the RIPE address blocks: 55863 RIPE Region origin ASes present in the Internet Routing Table: 16289 RIPE Prefixes per ASN: 5.49 RIPE Region origin ASes announcing only one prefix: 7995 RIPE Region transit ASes present in the Internet Routing Table: 2592 Average RIPE Region AS path length visible: 4.7 Max RIPE Region AS path length visible: 34 Number of RIPE region 32-bit ASNs visible in the Routing Table: 1312 Number of RIPE addresses announced to Internet: 498545288 Equivalent to 29 /8s, 183 /16s and 50 /24s Percentage of available RIPE address space announced: 80.3 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: 37647 Total LACNIC prefixes after maximum aggregation: 8038 LACNIC Deaggregation factor: 4.68 Prefixes being announced from the LACNIC address blocks: 37201 Unique aggregates announced from the LACNIC address blocks: 19337 LACNIC Region origin ASes present in the Internet Routing Table: 1567 LACNIC Prefixes per ASN: 23.74 LACNIC Region origin ASes announcing only one prefix: 440 LACNIC Region transit ASes present in the Internet Routing Table: 289 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 24 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 425 Number of LACNIC addresses announced to Internet: 95771016 Equivalent to 5 /8s, 181 /16s and 89 /24s Percentage of available LACNIC address space announced: 63.4 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: 9026 Total AfriNIC prefixes after maximum aggregation: 2089 AfriNIC Deaggregation factor: 4.32 Prefixes being announced from the AfriNIC address blocks: 7047 Unique aggregates announced from the AfriNIC address blocks: 2156 AfriNIC Region origin ASes present in the Internet Routing Table: 507 AfriNIC Prefixes per ASN: 13.90 AfriNIC Region origin ASes announcing only one prefix: 159 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: 30775040 Equivalent to 1 /8s, 213 /16s and 151 /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 2472 11101 979 Korea Telecom (KIX) 17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA 7545 1642 303 86 TPG Internet Pty Ltd 4755 1527 385 155 TATA Communications formerly 7552 1424 1064 7 Vietel Corporation 9829 1167 989 28 BSNL National Internet Backbo 4808 1099 2051 312 CNCGROUP IP network: China169 9583 1068 78 505 Sify Limited 24560 1015 385 167 Bharti Airtel Ltd., Telemedia 18101 945 130 154 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 3446 3807 201 bellsouth.net, inc. 7029 3227 1017 200 Windstream Communications Inc 18566 2093 382 177 Covad Communications 1785 1864 679 123 PaeTec Communications, Inc. 20115 1624 1552 628 Charter Communications 4323 1608 1062 384 Time Warner Telecom 22773 1520 2910 109 Cox Communications, Inc. 30036 1453 255 729 Mediacom Communications Corp 19262 1386 4683 400 Verizon Global Networks 7018 1301 7008 848 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 1744 480 15 Corbina telecom 2118 1241 99 14 EUnet/RELCOM Autonomous Syste 15557 1095 2161 64 LDCOM NETWORKS 6830 642 1927 412 UPC Distribution Services 34984 641 188 172 BILISIM TELEKOM 20940 589 193 463 Akamai Technologies European 12479 549 636 53 Uni2 Autonomous System 3320 531 8162 397 Deutsche Telekom AG 8551 529 360 81 Bezeq International 31148 524 36 8 FreeNet ISP 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 1729 322 168 TVCABLE BOGOTA 28573 1637 1069 71 NET Servicos de Comunicao S.A 8151 1460 2999 344 UniNet S.A. de C.V. 7303 1256 756 179 Telecom Argentina Stet-France 11172 687 95 72 Servicios Alestra S.A de C.V 27947 650 73 99 Telconet S.A 22047 582 322 17 VTR PUNTO NET S.A. 3816 551 238 92 Empresa Nacional de Telecomun 7738 550 1050 31 Telecomunicacoes da Bahia S.A 6503 539 434 68 AVANTEL, 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 1207 958 13 TEDATA 24863 833 156 44 LINKdotNET AS number 6713 487 649 18 Itissalat Al-MAGHRIB 3741 280 939 229 The Internet Solution 15706 242 32 6 Sudatel Internet Exchange Aut 33776 232 12 18 Starcomms Nigeria Limited 29571 214 17 12 Ci Telecom Autonomous system 12258 196 28 61 Vodacom Internet Company 24835 190 80 8 RAYA Telecom - Egypt 16637 163 664 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 3446 3807 201 bellsouth.net, inc. 7029 3227 1017 200 Windstream Communications Inc 4766 2472 11101 979 Korea Telecom (KIX) 18566 2093 382 177 Covad Communications 1785 1864 679 123 PaeTec Communications, Inc. 8402 1744 480 15 Corbina telecom 10620 1729 322 168 TVCABLE BOGOTA 17974 1714 503 35 PT TELEKOMUNIKASI INDONESIA 7545 1642 303 86 TPG Internet Pty Ltd 28573 1637 1069 71 NET Servicos de Comunicao S.A 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 3227 3027 Windstream Communications Inc 18566 2093 1916 Covad Communications 1785 1864 1741 PaeTec Communications, Inc. 8402 1744 1729 Corbina telecom 17974 1714 1679 PT TELEKOMUNIKASI INDONESIA 28573 1637 1566 NET Servicos de Comunicao S.A 10620 1729 1561 TVCABLE BOGOTA 7545 1642 1556 TPG Internet Pty Ltd 4766 2472 1493 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 37.72.0.0/19 29119 ServiHosting Autonomous Syste 37.72.48.0/20 23456 32-bit ASN transition 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 /13:455 /14:817 /15:1463 /16:12154 /17:6161 /18:10269 /19:20310 /20:28154 /21:29112 /22:39487 /23:36820 /24:205227 /25:1181 /26:1421 /27:785 /28:168 /29:60 /30:14 /31:0 /32:18 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 7029 2847 3227 Windstream Communications Inc 6389 2116 3446 bellsouth.net, inc. 18566 2042 2093 Covad Communications 8402 1723 1744 Corbina telecom 10620 1624 1729 TVCABLE BOGOTA 30036 1412 1453 Mediacom Communications Corp 11492 1089 1125 Cable One 1785 1064 1864 PaeTec Communications, Inc. 15557 1046 1095 LDCOM NETWORKS 7011 1033 1149 Citizens Utilities Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:510 2:478 4:14 5:1 6:3 8:378 12:1957 13:1 14:591 15:11 16:3 17:6 20:9 23:121 24:1716 27:1186 31:827 32:65 33:2 34:2 36:8 37:106 38:794 40:114 41:3175 42:87 43:1 44:3 46:1262 47:3 49:320 50:515 52:13 54:1 55:7 56:3 57:38 58:954 59:491 60:345 61:1178 62:922 63:1977 64:4130 65:2285 66:4409 67:2034 68:1168 69:3148 70:915 71:431 72:1799 74:2647 75:446 76:321 77:967 78:921 79:512 80:1208 81:872 82:561 83:532 84:583 85:1152 86:748 87:912 88:342 89:1544 90:258 91:4473 92:536 93:1554 94:1319 95:1125 96:414 97:306 98:793 99:38 100:20 101:130 103:688 106:4 107:137 108:129 109:1459 110:690 111:835 112:428 113:527 114:598 115:756 116:868 117:723 118:901 119:1254 120:354 121:681 122:1625 123:1058 124:1323 125:1359 128:538 129:190 130:211 131:591 132:162 133:21 134:233 135:59 136:213 137:153 138:290 139:145 140:488 141:260 142:378 143:400 144:508 145:68 146:487 147:226 148:695 149:271 150:166 151:192 152:446 153:170 154:7 155:398 156:210 157:367 158:154 159:509 160:333 161:237 162:339 163:188 164:532 165:391 166:561 167:458 168:765 169:147 170:833 171:112 172:4 173:1779 174:570 175:414 176:392 177:458 178:1234 180:1224 181:43 182:700 183:276 184:443 185:1 186:1506 187:829 188:974 189:1175 190:5395 192:5974 193:5483 194:4209 195:3392 196:1290 197:171 198:3588 199:4341 200:5704 201:1721 202:8424 203:8599 204:4348 205:2437 206:2749 207:2818 208:4046 209:3557 210:2733 211:1477 212:1978 213:1828 214:852 215:98 216:4975 217:1474 218:557 219:342 220:1252 221:549 222:321 223:273 End of report