This is an automated weekly mailing describing the state of the Internet Routing Table as seen from APNIC's router in Japan. Daily listings are sent to bgp-stats@lists.apnic.net For historical data, please see http://thyme.apnic.net. If you have any comments please contact Philip Smith <pfs@cisco.com>. Routing Table Report 04:00 +10GMT Sat 22 May, 2010 Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/ Analysis Summary ---------------- BGP routing table entries examined: 321165 Prefixes after maximum aggregation: 148380 Deaggregation factor: 2.16 Unique aggregates announced to Internet: 156870 Total ASes present in the Internet Routing Table: 34042 Prefixes per ASN: 9.43 Origin-only ASes present in the Internet Routing Table: 29540 Origin ASes announcing only one prefix: 14366 Transit ASes present in the Internet Routing Table: 4502 Transit-only ASes present in the Internet Routing Table: 102 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 24 Max AS path prepend of ASN (36992) 22 Prefixes from unregistered ASNs in the Routing Table: 331 Unregistered ASNs in the Routing Table: 122 Number of 32-bit ASNs allocated by the RIRs: 581 Prefixes from 32-bit ASNs in the Routing Table: 661 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 162 Number of addresses announced to Internet: 2221080896 Equivalent to 132 /8s, 99 /16s and 1 /24s Percentage of available address space announced: 59.9 Percentage of allocated address space announced: 65.2 Percentage of available address space allocated: 91.9 Percentage of address space in use by end-sites: 82.9 Total number of prefixes smaller than registry allocations: 153934 APNIC Region Analysis Summary ----------------------------- Prefixes being announced by APNIC Region ASes: 76497 Total APNIC prefixes after maximum aggregation: 26734 APNIC Deaggregation factor: 2.86 Prefixes being announced from the APNIC address blocks: 73497 Unique aggregates announced from the APNIC address blocks: 32320 APNIC Region origin ASes present in the Internet Routing Table: 4040 APNIC Prefixes per ASN: 18.19 APNIC Region origin ASes announcing only one prefix: 1110 APNIC Region transit ASes present in the Internet Routing Table: 622 Average APNIC Region AS path length visible: 3.6 Max APNIC Region AS path length visible: 15 Number of APNIC addresses announced to Internet: 519920448 Equivalent to 30 /8s, 253 /16s and 91 /24s Percentage of available APNIC address space announced: 77.5 APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431 (pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079 55296-56319, 131072-132095 APNIC Address Blocks 1/8, 14/8, 27/8, 43/8, 58/8, 59/8, 60/8, 61/8, 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: 134171 Total ARIN prefixes after maximum aggregation: 69108 ARIN Deaggregation factor: 1.94 Prefixes being announced from the ARIN address blocks: 107058 Unique aggregates announced from the ARIN address blocks: 41502 ARIN Region origin ASes present in the Internet Routing Table: 13697 ARIN Prefixes per ASN: 7.82 ARIN Region origin ASes announcing only one prefix: 5273 ARIN Region transit ASes present in the Internet Routing Table: 1352 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 22 Number of ARIN addresses announced to Internet: 731107360 Equivalent to 43 /8s, 147 /16s and 208 /24s Percentage of available ARIN address space announced: 62.3 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, 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, 54/8, 55/8, 56/8, 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, 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: 74051 Total RIPE prefixes after maximum aggregation: 42968 RIPE Deaggregation factor: 1.72 Prefixes being announced from the RIPE address blocks: 67010 Unique aggregates announced from the RIPE address blocks: 44081 RIPE Region origin ASes present in the Internet Routing Table: 14472 RIPE Prefixes per ASN: 4.63 RIPE Region origin ASes announcing only one prefix: 7471 RIPE Region transit ASes present in the Internet Routing Table: 2175 Average RIPE Region AS path length visible: 3.9 Max RIPE Region AS path length visible: 21 Number of RIPE addresses announced to Internet: 426216928 Equivalent to 25 /8s, 103 /16s and 141 /24s Percentage of available RIPE address space announced: 74.7 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, 196608-197631 RIPE Address Blocks 2/8, 25/8, 31/8, 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8, LACNIC Region Analysis Summary ------------------------------ Prefixes being announced by LACNIC Region ASes: 28205 Total LACNIC prefixes after maximum aggregation: 6791 LACNIC Deaggregation factor: 4.15 Prefixes being announced from the LACNIC address blocks: 26657 Unique aggregates announced from the LACNIC address blocks: 13910 LACNIC Region origin ASes present in the Internet Routing Table: 1291 LACNIC Prefixes per ASN: 20.65 LACNIC Region origin ASes announcing only one prefix: 405 LACNIC Region transit ASes present in the Internet Routing Table: 225 Average LACNIC Region AS path length visible: 3.9 Max LACNIC Region AS path length visible: 24 Number of LACNIC addresses announced to Internet: 73134848 Equivalent to 4 /8s, 91 /16s and 243 /24s Percentage of available LACNIC address space announced: 72.7 LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 186/8, 187/8, 189/8, 190/8, 200/8, 201/8, AfriNIC Region Analysis Summary ------------------------------- Prefixes being announced by AfriNIC Region ASes: 7345 Total AfriNIC prefixes after maximum aggregation: 1861 AfriNIC Deaggregation factor: 3.95 Prefixes being announced from the AfriNIC address blocks: 5640 Unique aggregates announced from the AfriNIC address blocks: 1668 AfriNIC Region origin ASes present in the Internet Routing Table: 365 AfriNIC Prefixes per ASN: 15.45 AfriNIC Region origin ASes announcing only one prefix: 107 AfriNIC Region transit ASes present in the Internet Routing Table: 83 Average AfriNIC Region AS path length visible: 3.8 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC addresses announced to Internet: 17856768 Equivalent to 1 /8s, 16 /16s and 121 /24s Percentage of available AfriNIC address space announced: 53.2 AfriNIC AS Blocks 36864-37887, 327680-328703 & ERX transfers AfriNIC Address Blocks 41/8, 197/8, APNIC Region per AS prefix count summary ---------------------------------------- ASN No of nets /20 equiv MaxAgg Description 4766 1848 8422 483 Korea Telecom (KIX) 17488 1316 140 123 Hathway IP Over Cable Interne 4755 1306 293 151 TATA Communications formerly 7545 1212 232 105 TPG Internet Pty Ltd 17974 1059 281 18 PT TELEKOMUNIKASI INDONESIA 9583 990 73 485 Sify Limited 24560 900 305 169 Bharti Airtel Ltd., Telemedia 4134 872 21191 403 CHINANET-BACKBONE 4808 845 1587 214 CNCGROUP IP network: China169 9829 791 681 34 BSNL National Internet Backbo Complete listing at http://thyme.apnic.net/current/data-ASnet-APNIC ARIN Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3932 3733 288 bellsouth.net, inc. 4323 3843 1116 404 Time Warner Telecom 1785 1783 699 130 PaeTec Communications, Inc. 7018 1540 5754 980 AT&T WorldNet Services 20115 1538 1506 654 Charter Communications 2386 1281 568 911 AT&T Data Communications Serv 6478 1248 257 99 AT&T Worldnet Services 3356 1191 10887 407 Level 3 Communications, LLC 22773 1155 2604 64 Cox Communications, Inc. 11492 1146 210 285 Cable One Complete listing at http://thyme.apnic.net/current/data-ASnet-ARIN RIPE Region per AS prefix count summary --------------------------------------- ASN No of nets /20 equiv MaxAgg Description 35805 627 56 6 United Telecom of Georgia 3292 454 2027 393 TDC Tele Danmark 30890 442 116 207 Evolva Telecom 702 414 1869 328 UUNET - Commercial IP service 8551 402 355 38 Bezeq International 8866 396 117 18 Bulgarian Telecommunication C 3320 367 7072 318 Deutsche Telekom AG 3301 365 1413 321 TeliaNet Sweden 12479 337 576 5 Uni2 Autonomous System 3215 329 3218 101 France Telecom Transpac Complete listing at http://thyme.apnic.net/current/data-ASnet-RIPE LACNIC Region per AS prefix count summary ----------------------------------------- ASN No of nets /20 equiv MaxAgg Description 8151 1553 2965 245 UniNet S.A. de C.V. 10620 1042 234 152 TVCABLE BOGOTA 28573 877 720 76 NET Servicos de Comunicao S.A 7303 729 377 107 Telecom Argentina Stet-France 6503 580 173 209 AVANTEL, S.A. 22047 545 310 15 VTR PUNTO NET S.A. 7738 477 922 30 Telecomunicacoes da Bahia S.A 3816 470 202 73 Empresa Nacional de Telecomun 14117 455 30 13 Telefonica del Sur S.A. 11172 444 99 72 Servicios Alestra S.A de C.V Complete listing at http://thyme.apnic.net/current/data-ASnet-LACNIC AfriNIC Region per AS prefix count summary ------------------------------------------ ASN No of nets /20 equiv MaxAgg Description 8452 1262 445 10 TEDATA 24863 712 147 39 LINKdotNET AS number 36992 643 278 184 Etisalat MISR 3741 270 852 231 The Internet Solution 2018 216 231 112 Tertiary Education Network 33776 213 11 14 Starcomms Nigeria Limited 6713 176 167 12 Itissalat Al-MAGHRIB 24835 175 78 10 RAYA Telecom - Egypt 29571 172 19 9 Ci Telecom Autonomous system 29975 132 490 17 Vodacom Complete listing at http://thyme.apnic.net/current/data-ASnet-AFRINIC Global Per AS prefix count summary ---------------------------------- ASN No of nets /20 equiv MaxAgg Description 6389 3932 3733 288 bellsouth.net, inc. 4323 3843 1116 404 Time Warner Telecom 4766 1848 8422 483 Korea Telecom (KIX) 1785 1783 699 130 PaeTec Communications, Inc. 8151 1553 2965 245 UniNet S.A. de C.V. 7018 1540 5754 980 AT&T WorldNet Services 20115 1538 1506 654 Charter Communications 17488 1316 140 123 Hathway IP Over Cable Interne 4755 1306 293 151 TATA Communications formerly 2386 1281 568 911 AT&T Data Communications Serv Complete listing at http://thyme.apnic.net/current/data-ASnet Global Per AS Maximum Aggr summary ---------------------------------- ASN No of nets Net Savings Description 4323 3843 3439 Time Warner Telecom 1785 1783 1653 PaeTec Communications, Inc. 4766 1848 1365 Korea Telecom (KIX) 8151 1553 1308 UniNet S.A. de C.V. 8452 1262 1252 TEDATA 17488 1316 1193 Hathway IP Over Cable Interne 4755 1306 1155 TATA Communications formerly 6478 1248 1149 AT&T Worldnet Services 7545 1212 1107 TPG Internet Pty Ltd 22773 1155 1091 Cox Communications, Inc. Complete listing at http://thyme.apnic.net/current/data-CIDRnet List of Unregistered Origin ASNs (Global) ----------------------------------------- Bad AS Designation Network Transit AS Description 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 15132 UNALLOCATED 12.9.150.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.14.170.0/24 7018 AT&T WorldNet Servic 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 32567 UNALLOCATED 12.25.107.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.152.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.154.0/23 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.155.0/24 7018 AT&T WorldNet Servic 26973 UNALLOCATED 12.39.159.0/24 7018 AT&T WorldNet Servic 25639 UNALLOCATED 12.41.169.0/24 7018 AT&T WorldNet Servic Complete listing at http://thyme.apnic.net/current/data-badAS Advertised Unallocated Addresses -------------------------------- Network Origin AS Description 31.0.0.0/16 12654 RIPE NCC RIS Project 31.1.0.0/21 12654 RIPE NCC RIS Project 31.1.24.0/24 12654 RIPE NCC RIS Project 41.202.96.0/19 29571 Ci Telecom Autonomous system 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 41.223.188.0/24 22351 Intelsat 41.223.196.0/24 36990 Alkan Telecom Ltd 41.223.197.0/24 36990 Alkan Telecom Ltd 41.223.198.0/24 36990 Alkan Telecom Ltd Complete listing at http://thyme.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 /9:10 /10:26 /11:67 /12:194 /13:401 /14:689 /15:1269 /16:11071 /17:5272 /18:8978 /19:18255 /20:22557 /21:22602 /22:29441 /23:29089 /24:168288 /25:949 /26:1204 /27:618 /28:142 /29:9 /30:7 /31:0 /32:8 Advertised prefixes smaller than registry allocations ----------------------------------------------------- ASN No of nets Total ann. Description 6389 2516 3932 bellsouth.net, inc. 4323 2329 3843 Time Warner Telecom 4766 1480 1848 Korea Telecom (KIX) 1785 1247 1783 PaeTec Communications, Inc. 8452 1140 1262 TEDATA 17488 1063 1316 Hathway IP Over Cable Interne 11492 1062 1146 Cable One 18566 1040 1059 Covad Communications 10620 958 1042 TVCABLE BOGOTA 7018 925 1540 AT&T WorldNet Services Complete listing at http://thyme.apnic.net/current/data-sXXas-nos Number of /24s announced per /8 block (Global) ---------------------------------------------- 1:1 4:13 8:263 12:2002 13:10 14:1 15:23 16:3 17:8 20:21 24:1431 27:99 31:1 32:47 33:12 38:671 40:98 41:2486 44:3 47:26 52:6 55:7 56:2 57:24 58:724 59:497 60:434 61:1071 62:1062 63:1979 64:3854 65:2353 66:4203 67:1844 68:1112 69:2836 70:714 71:243 72:1820 73:2 74:2292 75:252 76:309 77:859 78:633 79:414 80:1015 81:789 82:482 83:453 84:697 85:1060 86:466 87:704 88:330 89:1551 90:88 91:2755 92:505 93:1114 94:1426 95:596 96:280 97:314 98:548 99:28 108:32 109:481 110:353 111:502 112:261 113:286 114:402 115:556 116:1038 117:641 118:442 119:920 120:139 121:725 122:1432 123:897 124:1106 125:1294 128:210 129:209 130:193 131:560 132:246 133:17 134:193 135:44 136:226 137:173 138:255 139:92 140:482 141:135 142:353 143:383 144:476 145:52 146:428 147:165 148:614 149:288 150:153 151:169 152:261 153:167 154:2 155:324 156:155 157:325 158:107 159:375 160:314 161:185 162:262 163:179 164:407 165:346 166:475 167:393 168:783 169:160 170:705 171:51 172:2 173:739 174:644 175:93 176:1 178:93 180:477 182:60 183:254 184:45 186:383 187:346 188:1340 189:782 190:3640 192:5739 193:4693 194:3358 195:2769 196:1211 197:1 198:3567 199:3433 200:5308 201:1500 202:7983 203:8287 204:4062 205:2323 206:2528 207:3036 208:3893 209:3415 210:2503 211:1242 212:1735 213:1677 214:660 215:70 216:4613 217:1538 218:487 219:371 220:1106 221:400 222:315 223:1 End of report