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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 01 Jun, 2011
Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary ----------------
BGP routing table entries examined: 358494 Prefixes after maximum aggregation: 162108 Deaggregation factor: 2.21 Unique aggregates announced to Internet: 177485 Total ASes present in the Internet Routing Table: 37729 Prefixes per ASN: 9.50 Origin-only ASes present in the Internet Routing Table: 31514 Origin ASes announcing only one prefix: 15143 Transit ASes present in the Internet Routing Table: 5103 Transit-only ASes present in the Internet Routing Table: 140 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 36 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 723 Unregistered ASNs in the Routing Table: 382 Number of 32-bit ASNs allocated by the RIRs: 1401 Number of 32-bit ASNs visible in the Routing Table: 1112 Prefixes from 32-bit ASNs in the Routing Table: 2562 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 170 Number of addresses announced to Internet: 2440624832 Equivalent to 145 /8s, 120 /16s and 250 /24s Percentage of available address space announced: 65.8 Percentage of allocated address space announced: 65.8 Percentage of available address space allocated: 100.0 Percentage of address space in use by end-sites: 91.0 Total number of prefixes smaller than registry allocations: 149344
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 89159 Total APNIC prefixes after maximum aggregation: 30005 APNIC Deaggregation factor: 2.97 Prefixes being announced from the APNIC address blocks: 85625 Unique aggregates announced from the APNIC address blocks: 36671 APNIC Region origin ASes present in the Internet Routing Table: 4469 APNIC Prefixes per ASN: 19.16 APNIC Region origin ASes announcing only one prefix: 1253 APNIC Region transit ASes present in the Internet Routing Table: 703 Average APNIC Region AS path length visible: 4.6 Max APNIC Region AS path length visible: 20 Number of APNIC region 32-bit ASNs visible in the Routing Table: 48 Number of APNIC addresses announced to Internet: 618946336 Equivalent to 36 /8s, 228 /16s and 95 /24s Percentage of available APNIC address space announced: 78.5
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, 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: 140411 Total ARIN prefixes after maximum aggregation: 71335 ARIN Deaggregation factor: 1.97 Prefixes being announced from the ARIN address blocks: 112662 Unique aggregates announced from the ARIN address blocks: 45873 ARIN Region origin ASes present in the Internet Routing Table: 14395 ARIN Prefixes per ASN: 7.83 ARIN Region origin ASes announcing only one prefix: 5489 ARIN Region transit ASes present in the Internet Routing Table: 1510 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN region 32-bit ASNs visible in the Routing Table: 12 Number of ARIN addresses announced to Internet: 801935616 Equivalent to 47 /8s, 204 /16s and 145 /24s Percentage of available ARIN address space announced: 63.7
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: 85003 Total RIPE prefixes after maximum aggregation: 48458 RIPE Deaggregation factor: 1.75 Prefixes being announced from the RIPE address blocks: 78405 Unique aggregates announced from the RIPE address blocks: 51904 RIPE Region origin ASes present in the Internet Routing Table: 15644 RIPE Prefixes per ASN: 5.01 RIPE Region origin ASes announcing only one prefix: 7828 RIPE Region transit ASes present in the Internet Routing Table: 2467 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 36 Number of RIPE region 32-bit ASNs visible in the Routing Table: 821 Number of RIPE addresses announced to Internet: 474637568 Equivalent to 28 /8s, 74 /16s and 101 /24s Percentage of available RIPE address space announced: 76.5
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: 32954 Total LACNIC prefixes after maximum aggregation: 7533 LACNIC Deaggregation factor: 4.37 Prefixes being announced from the LACNIC address blocks: 32190 Unique aggregates announced from the LACNIC address blocks: 16905 LACNIC Region origin ASes present in the Internet Routing Table: 1462 LACNIC Prefixes per ASN: 22.02 LACNIC Region origin ASes announcing only one prefix: 433 LACNIC Region transit ASes present in the Internet Routing Table: 263 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: 226 Number of LACNIC addresses announced to Internet: 84371456 Equivalent to 5 /8s, 7 /16s and 104 /24s Percentage of available LACNIC address space announced: 55.9
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: 8179 Total AfriNIC prefixes after maximum aggregation: 1920 AfriNIC Deaggregation factor: 4.26 Prefixes being announced from the AfriNIC address blocks: 6412 Unique aggregates announced from the AfriNIC address blocks: 1910 AfriNIC Region origin ASes present in the Internet Routing Table: 457 AfriNIC Prefixes per ASN: 14.03 AfriNIC Region origin ASes announcing only one prefix: 140 AfriNIC Region transit ASes present in the Internet Routing Table: 99 Average AfriNIC Region AS path length visible: 4.8 Max AfriNIC Region AS path length visible: 24 Number of AfriNIC region 32-bit ASNs visible in the Routing Table: 5 Number of AfriNIC addresses announced to Internet: 23544320 Equivalent to 1 /8s, 103 /16s and 66 /24s Percentage of available AfriNIC address space announced: 35.1
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 2461 9500 922 Korea Telecom (KIX) 17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA 7545 1536 301 85 TPG Internet Pty Ltd 4755 1473 635 169 TATA Communications formerly 24560 1155 337 187 Bharti Airtel Ltd., Telemedia 7552 1138 1064 7 Vietel Corporation 4808 1086 2144 300 CNCGROUP IP network: China169 9583 1076 79 508 Sify Limited 9829 1041 877 53 BSNL National Internet Backbo 18101 930 116 140 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 3640 3822 254 bellsouth.net, inc. 4323 1973 1081 399 Time Warner Telecom 18566 1875 355 271 Covad Communications 1785 1789 681 123 PaeTec Communications, Inc. 6478 1705 317 42 AT&T Worldnet Services 20115 1535 1540 633 Charter Communications 19262 1491 4936 307 Verizon Global Networks 7018 1362 7052 886 AT&T WorldNet Services 22773 1336 2897 88 Cox Communications, Inc. 11492 1280 240 15 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 6830 516 1780 319 UPC Distribution Services 34984 516 106 178 BILISIM TELEKOM 3292 461 2078 396 TDC Tele Danmark 20940 457 134 349 Akamai Technologies European 29049 451 33 48 AzerSat LLC. 8866 445 134 26 Bulgarian Telecommunication C 12479 429 577 6 Uni2 Autonomous System 3320 425 8152 370 Deutsche Telekom AG 8551 406 355 45 Bezeq International 702 396 1803 310 UUNET - Commercial IP service
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 1503 275 158 TVCABLE BOGOTA 8151 1378 2710 364 UniNet S.A. de C.V. 28573 1325 992 86 NET Servicos de Comunicao S.A 7303 959 504 151 Telecom Argentina Stet-France 6503 731 354 73 AVANTEL, S.A. 14420 671 54 89 CORPORACION NACIONAL DE TELEC 22047 565 310 15 VTR PUNTO NET S.A. 3816 524 228 100 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 13489 514 262 123 Orbitel S.A. E.S.P.
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 870 445 11 TEDATA 24863 784 147 37 LINKdotNET AS number 15475 540 90 8 Nile Online 36992 307 399 15 Etisalat MISR 3741 263 937 226 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 218 12 11 Starcomms Nigeria Limited 24835 209 78 10 RAYA Telecom - Egypt 29571 193 19 12 Ci Telecom Autonomous system 16637 150 441 86 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 3640 3822 254 bellsouth.net, inc. 23456 2562 635 1381 32-bit ASN transition 4766 2461 9500 922 Korea Telecom (KIX) 4323 1973 1081 399 Time Warner Telecom 18566 1875 355 271 Covad Communications 17974 1834 516 32 PT TELEKOMUNIKASI INDONESIA 1785 1789 681 123 PaeTec Communications, Inc. 6478 1705 317 42 AT&T Worldnet Services 7545 1536 301 85 TPG Internet Pty Ltd 20115 1535 1540 633 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 17974 1834 1802 PT TELEKOMUNIKASI INDONESIA 1785 1789 1666 PaeTec Communications, Inc. 6478 1705 1663 AT&T Worldnet Services 18566 1875 1604 Covad Communications 4323 1973 1574 Time Warner Telecom 4766 2461 1539 Korea Telecom (KIX) 7545 1536 1451 TPG Internet Pty Ltd 10620 1503 1345 TVCABLE BOGOTA 4755 1473 1304 TATA Communications formerly 11492 1280 1265 Cable One
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 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 13317 UNALLOCATED 12.44.10.0/24 7018 AT&T WorldNet Servic 23502 UNALLOCATED 12.44.44.0/24 7018 AT&T WorldNet Servic
Complete listing at http://thyme.rand.apnic.net/current/data-badAS
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 27.0.128.0/17 7514 Media Exchange, Inc. 31.131.8.0/21 51962 ERDENI SRL 31.131.32.0/21 12700 Vektor 41.190.32.0/23 31856 CABSAS
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 /8:20 /9:12 /10:28 /11:81 /12:227 /13:461 /14:796 /15:1394 /16:11772 /17:5833 /18:9767 /19:19326 /20:25722 /21:25921 /22:34127 /23:33098 /24:186699 /25:1063 /26:1259 /27:712 /28:160 /29:8 /30:2 /31:0 /32:6
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2241 3640 bellsouth.net, inc. 18566 1838 1875 Covad Communications 6478 1659 1705 AT&T Worldnet Services 10620 1393 1503 TVCABLE BOGOTA 23456 1247 2562 32-bit ASN transition 11492 1226 1280 Cable One 7011 1061 1160 Citizens Utilities 1785 1051 1789 PaeTec Communications, Inc. 4323 886 1973 Time Warner Telecom 22773 851 1336 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:280 2:48 4:16 5:1 6:3 8:337 12:1980 13:1 14:463 15:15 16:3 17:8 20:10 23:7 24:1647 27:779 31:359 32:60 33:4 34:2 37:1 38:738 40:102 41:2582 42:6 44:3 46:930 47:3 49:198 50:424 52:13 54:2 55:6 56:2 57:29 58:844 59:480 60:387 61:1232 62:1040 63:1938 64:3948 65:2293 66:4115 67:1871 68:1084 69:2998 70:707 71:352 72:1894 73:1 74:2356 75:304 76:341 77:870 78:704 79:459 80:1074 81:838 82:494 83:435 84:677 85:1060 86:593 87:753 88:332 89:1532 90:203 91:3792 92:516 93:1047 94:1280 95:803 96:506 97:250 98:856 99:35 101:59 103:34 106:1 107:7 108:85 109:951 110:605 111:707 112:304 113:401 114:536 115:679 116:957 117:692 118:828 119:1133 120:310 121:671 122:1625 123:997 124:1265 125:1226 128:262 129:173 130:164 131:570 132:109 133:19 134:213 135:48 136:214 137:143 138:300 139:110 140:482 141:239 142:404 143:404 144:484 145:54 146:447 147:212 148:594 149:242 150:169 151:186 152:328 153:178 154:3 155:397 156:194 157:323 158:138 159:380 160:317 161:207 162:282 163:164 164:500 165:354 166:515 167:428 168:730 169:155 170:805 171:77 172:1 173:1556 174:551 175:369 176:130 177:148 178:993 180:852 181:17 182:453 183:201 184:286 185:1 186:1199 187:776 188:844 189:896 190:4837 192:5843 193:4899 194:3493 195:2995 196:1224 197:19 198:3571 199:3912 200:5544 201:1483 202:8287 203:8400 204:4171 205:2321 206:2679 207:2875 208:3966 209:3468 210:2722 211:1396 212:1989 213:1737 214:729 215:72 216:4910 217:1629 218:566 219:358 220:1203 221:491 222:342 223:149
End of report
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