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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 29 Jun, 2011
Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary ----------------
BGP routing table entries examined: 362064 Prefixes after maximum aggregation: 164398 Deaggregation factor: 2.20 Unique aggregates announced to Internet: 179653 Total ASes present in the Internet Routing Table: 38040 Prefixes per ASN: 9.52 Origin-only ASes present in the Internet Routing Table: 31672 Origin ASes announcing only one prefix: 15230 Transit ASes present in the Internet Routing Table: 5171 Transit-only ASes present in the Internet Routing Table: 137 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 33 Max AS path prepend of ASN (48687) 24 Prefixes from unregistered ASNs in the Routing Table: 863 Unregistered ASNs in the Routing Table: 471 Number of 32-bit ASNs allocated by the RIRs: 1502 Number of 32-bit ASNs visible in the Routing Table: 1197 Prefixes from 32-bit ASNs in the Routing Table: 2746 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 133 Number of addresses announced to Internet: 2491805120 Equivalent to 148 /8s, 133 /16s and 237 /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: 91.0 Total number of prefixes smaller than registry allocations: 150904
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 89967 Total APNIC prefixes after maximum aggregation: 30224 APNIC Deaggregation factor: 2.98 Prefixes being announced from the APNIC address blocks: 86713 Unique aggregates announced from the APNIC address blocks: 37052 APNIC Region origin ASes present in the Internet Routing Table: 4498 APNIC Prefixes per ASN: 19.28 APNIC Region origin ASes announcing only one prefix: 1252 APNIC Region transit ASes present in the Internet Routing Table: 711 Average APNIC Region AS path length visible: 4.5 Max APNIC Region AS path length visible: 18 Number of APNIC region 32-bit ASNs visible in the Routing Table: 52 Number of APNIC addresses announced to Internet: 620885536 Equivalent to 37 /8s, 1 /16s and 246 /24s Percentage of available APNIC address space announced: 78.7
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: 141313 Total ARIN prefixes after maximum aggregation: 72586 ARIN Deaggregation factor: 1.95 Prefixes being announced from the ARIN address blocks: 113251 Unique aggregates announced from the ARIN address blocks: 46543 ARIN Region origin ASes present in the Internet Routing Table: 14457 ARIN Prefixes per ASN: 7.83 ARIN Region origin ASes announcing only one prefix: 5528 ARIN Region transit ASes present in the Internet Routing Table: 1521 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: 12 Number of ARIN addresses announced to Internet: 819287296 Equivalent to 48 /8s, 213 /16s and 85 /24s Percentage of available ARIN address space announced: 65.1
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: 86288 Total RIPE prefixes after maximum aggregation: 49008 RIPE Deaggregation factor: 1.76 Prefixes being announced from the RIPE address blocks: 79652 Unique aggregates announced from the RIPE address blocks: 52636 RIPE Region origin ASes present in the Internet Routing Table: 15769 RIPE Prefixes per ASN: 5.05 RIPE Region origin ASes announcing only one prefix: 7870 RIPE Region transit ASes present in the Internet Routing Table: 2493 Average RIPE Region AS path length visible: 4.6 Max RIPE Region AS path length visible: 33 Number of RIPE region 32-bit ASNs visible in the Routing Table: 880 Number of RIPE addresses announced to Internet: 478450048 Equivalent to 28 /8s, 132 /16s and 145 /24s Percentage of available RIPE address space announced: 77.1
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: 33329 Total LACNIC prefixes after maximum aggregation: 7549 LACNIC Deaggregation factor: 4.42 Prefixes being announced from the LACNIC address blocks: 32385 Unique aggregates announced from the LACNIC address blocks: 16931 LACNIC Region origin ASes present in the Internet Routing Table: 1470 LACNIC Prefixes per ASN: 22.03 LACNIC Region origin ASes announcing only one prefix: 440 LACNIC Region transit ASes present in the Internet Routing Table: 265 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 19 Number of LACNIC region 32-bit ASNs visible in the Routing Table: 249 Number of LACNIC addresses announced to Internet: 85655552 Equivalent to 5 /8s, 27 /16s and 0 /24s Percentage of available LACNIC address space announced: 56.7
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: 8205 Total AfriNIC prefixes after maximum aggregation: 1963 AfriNIC Deaggregation factor: 4.18 Prefixes being announced from the AfriNIC address blocks: 6480 Unique aggregates announced from the AfriNIC address blocks: 1988 AfriNIC Region origin ASes present in the Internet Routing Table: 462 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: 103 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: 4 Number of AfriNIC addresses announced to Internet: 24272384 Equivalent to 1 /8s, 114 /16s and 94 /24s Percentage of available AfriNIC address space announced: 36.2
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 2457 9500 928 Korea Telecom (KIX) 17974 1862 461 44 PT TELEKOMUNIKASI INDONESIA 7545 1541 301 83 TPG Internet Pty Ltd 4755 1489 631 167 TATA Communications formerly 24560 1153 336 187 Bharti Airtel Ltd., Telemedia 9583 1053 77 503 Sify Limited 4808 1050 2092 301 CNCGROUP IP network: China169 9829 1041 882 70 BSNL National Internet Backbo 17488 957 185 103 Hathway IP Over Cable Interne 18101 933 116 140 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 3620 3819 244 bellsouth.net, inc. 18566 1913 365 241 Covad Communications 1785 1798 681 122 PaeTec Communications, Inc. 4323 1662 1082 400 Time Warner Telecom 20115 1590 1531 635 Charter Communications 6478 1501 276 524 AT&T Worldnet Services 19262 1451 4806 371 Verizon Global Networks 7018 1361 7053 890 AT&T WorldNet Services 22773 1345 2897 87 Cox Communications, Inc. 7029 1308 790 298 Windstream Communications Inc
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 34984 534 106 185 BILISIM TELEKOM 6830 514 1780 319 UPC Distribution Services 3292 469 2080 404 TDC Tele Danmark 20940 466 136 359 Akamai Technologies European 29049 446 33 46 AzerSat LLC. 8866 445 134 26 Bulgarian Telecommunication C 12479 437 593 7 Uni2 Autonomous System 3320 421 8151 368 Deutsche Telekom AG 8551 404 354 44 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 1532 281 157 TVCABLE BOGOTA 8151 1423 2742 356 UniNet S.A. de C.V. 28573 1270 993 78 NET Servicos de Comunicao S.A 7303 993 507 170 Telecom Argentina Stet-France 6503 742 354 74 AVANTEL, S.A. 14420 684 55 83 CORPORACION NACIONAL DE TELEC 22047 576 322 17 VTR PUNTO NET S.A. 3816 531 231 94 Empresa Nacional de Telecomun 7738 516 986 31 Telecomunicacoes da Bahia S.A 27947 509 53 57 Telconet 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 789 445 11 TEDATA 24863 769 147 37 LINKdotNET AS number 15475 524 74 8 Nile Online 36992 313 415 14 Etisalat MISR 3741 261 937 223 The Internet Solution 6713 241 215 13 Itissalat Al-MAGHRIB 33776 216 12 11 Starcomms Nigeria Limited 24835 211 78 10 RAYA Telecom - Egypt 29571 192 17 11 Ci Telecom Autonomous system 16637 149 441 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 3620 3819 244 bellsouth.net, inc. 23456 2746 679 1487 32-bit ASN transition 4766 2457 9500 928 Korea Telecom (KIX) 18566 1913 365 241 Covad Communications 17974 1862 461 44 PT TELEKOMUNIKASI INDONESIA 1785 1798 681 122 PaeTec Communications, Inc. 4323 1662 1082 400 Time Warner Telecom 20115 1590 1531 635 Charter Communications 7545 1541 301 83 TPG Internet Pty Ltd 10620 1532 281 157 TVCABLE BOGOTA
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 1862 1818 PT TELEKOMUNIKASI INDONESIA 1785 1798 1676 PaeTec Communications, Inc. 18566 1913 1672 Covad Communications 4766 2457 1529 Korea Telecom (KIX) 7545 1541 1458 TPG Internet Pty Ltd 10620 1532 1375 TVCABLE BOGOTA 4755 1489 1322 TATA Communications formerly 4323 1662 1262 Time Warner Telecom 23456 2746 1259 32-bit ASN transition 22773 1345 1258 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 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. 41.190.32.0/23 31856 CABSAS 41.190.34.0/23 31856 CABSAS 41.190.36.0/23 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 /8:22 /9:12 /10:28 /11:81 /12:231 /13:461 /14:800 /15:1397 /16:11976 /17:5867 /18:9759 /19:19446 /20:25821 /21:26127 /22:34581 /23:33521 /24:188615 /25:1092 /26:1270 /27:735 /28:205 /29:9 /30:2 /31:0 /32:6
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2226 3620 bellsouth.net, inc. 18566 1869 1913 Covad Communications 6478 1468 1501 AT&T Worldnet Services 10620 1427 1532 TVCABLE BOGOTA 23456 1345 2746 32-bit ASN transition 11492 1090 1136 Cable One 7011 1056 1157 Citizens Utilities 7029 1055 1308 Windstream Communications Inc 1785 1051 1798 PaeTec Communications, Inc. 22773 860 1345 Cox Communications, Inc.
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:317 2:52 4:16 5:1 6:3 8:336 9:1 12:1979 13:1 14:467 15:15 16:3 17:8 20:10 23:12 24:1656 27:804 31:482 32:64 33:4 34:2 36:4 37:1 38:739 39:3 40:103 41:2565 42:5 44:3 46:988 47:3 49:197 50:430 52:13 54:2 55:2 56:2 57:34 58:865 59:476 60:386 61:1182 62:1040 63:1937 64:3945 65:2286 66:3877 67:1903 68:1095 69:3025 70:757 71:392 72:1889 74:2383 75:320 76:338 77:890 78:712 79:462 80:1117 81:851 82:494 83:457 84:671 85:1077 86:551 87:759 88:336 89:1529 90:209 91:3892 92:537 93:1050 94:1320 95:842 96:445 97:254 98:887 99:36 101:77 103:94 106:9 107:17 108:70 109:1013 110:611 111:710 112:304 113:405 114:543 115:667 116:963 117:671 118:857 119:1148 120:308 121:670 122:1610 123:963 124:1299 125:1240 128:247 129:172 130:168 131:577 132:112 133:21 134:214 135:48 136:215 137:136 138:298 139:115 140:480 141:239 142:403 143:423 144:483 145:54 146:449 147:214 148:662 149:247 150:165 151:190 152:332 153:180 154:4 155:399 156:195 157:351 158:138 159:453 160:314 161:210 162:310 163:165 164:504 165:354 166:537 167:431 168:739 169:157 170:844 171:78 172:1 173:1632 174:608 175:373 176:141 177:151 178:988 180:889 181:19 182:484 183:224 184:308 185:1 186:1247 187:729 188:878 189:936 190:4912 192:5887 193:4971 194:3497 195:3031 196:1220 197:41 198:3589 199:3957 200:5536 201:1505 202:8359 203:8430 204:4206 205:2344 206:2681 207:2811 208:3950 209:3469 210:2686 211:1458 212:2102 213:1743 214:773 215:70 216:4925 217:1637 218:544 219:362 220:1204 221:491 222:361 223:177
End of report
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