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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Mon 08 Nov, 2010
Report Website: http://thyme.rand.apnic.net Detailed Analysis: http://thyme.rand.apnic.net/current/
Analysis Summary ----------------
BGP routing table entries examined: 335626 Prefixes after maximum aggregation: 153341 Deaggregation factor: 2.19 Unique aggregates announced to Internet: 164743 Total ASes present in the Internet Routing Table: 35182 Prefixes per ASN: 9.54 Origin-only ASes present in the Internet Routing Table: 30343 Origin ASes announcing only one prefix: 14807 Transit ASes present in the Internet Routing Table: 4839 Transit-only ASes present in the Internet Routing Table: 116 Average AS path length visible in the Internet Routing Table: 4.3 Max AS path length visible: 31 Max AS path prepend of ASN (36992) 29 Prefixes from unregistered ASNs in the Routing Table: 301 Unregistered ASNs in the Routing Table: 128 Number of 32-bit ASNs allocated by the RIRs: 873 Prefixes from 32-bit ASNs in the Routing Table: 4 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 187 Number of addresses announced to Internet: 2329711520 Equivalent to 138 /8s, 220 /16s and 147 /24s Percentage of available address space announced: 62.9 Percentage of allocated address space announced: 66.5 Percentage of available address space allocated: 94.6 Percentage of address space in use by end-sites: 85.8 Total number of prefixes smaller than registry allocations: 137667
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 82463 Total APNIC prefixes after maximum aggregation: 28061 APNIC Deaggregation factor: 2.94 Prefixes being announced from the APNIC address blocks: 79352 Unique aggregates announced from the APNIC address blocks: 34597 APNIC Region origin ASes present in the Internet Routing Table: 4227 APNIC Prefixes per ASN: 18.77 APNIC Region origin ASes announcing only one prefix: 1174 APNIC Region transit ASes present in the Internet Routing Table: 677 Average APNIC Region AS path length visible: 4.4 Max APNIC Region AS path length visible: 17 Number of APNIC addresses announced to Internet: 561464352 Equivalent to 33 /8s, 119 /16s and 68 /24s Percentage of available APNIC address space announced: 76.1
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, 42/8, 43/8, 49/8, 58/8, 59/8, 60/8, 61/8, 101/8, 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: 137649 Total ARIN prefixes after maximum aggregation: 71343 ARIN Deaggregation factor: 1.93 Prefixes being announced from the ARIN address blocks: 109035 Unique aggregates announced from the ARIN address blocks: 43625 ARIN Region origin ASes present in the Internet Routing Table: 14019 ARIN Prefixes per ASN: 7.78 ARIN Region origin ASes announcing only one prefix: 5369 ARIN Region transit ASes present in the Internet Routing Table: 1483 Average ARIN Region AS path length visible: 4.0 Max ARIN Region AS path length visible: 23 Number of ARIN addresses announced to Internet: 740066816 Equivalent to 44 /8s, 28 /16s and 134 /24s Percentage of available ARIN address space announced: 63.0
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, 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: 77569 Total RIPE prefixes after maximum aggregation: 44709 RIPE Deaggregation factor: 1.73 Prefixes being announced from the RIPE address blocks: 71070 Unique aggregates announced from the RIPE address blocks: 46350 RIPE Region origin ASes present in the Internet Routing Table: 14960 RIPE Prefixes per ASN: 4.75 RIPE Region origin ASes announcing only one prefix: 7703 RIPE Region transit ASes present in the Internet Routing Table: 2308 Average RIPE Region AS path length visible: 4.4 Max RIPE Region AS path length visible: 30 Number of RIPE addresses announced to Internet: 443853056 Equivalent to 26 /8s, 116 /16s and 169 /24s Percentage of available RIPE address space announced: 77.8
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: 30089 Total LACNIC prefixes after maximum aggregation: 7232 LACNIC Deaggregation factor: 4.16 Prefixes being announced from the LACNIC address blocks: 28776 Unique aggregates announced from the LACNIC address blocks: 15224 LACNIC Region origin ASes present in the Internet Routing Table: 1379 LACNIC Prefixes per ASN: 20.87 LACNIC Region origin ASes announcing only one prefix: 429 LACNIC Region transit ASes present in the Internet Routing Table: 238 Average LACNIC Region AS path length visible: 4.4 Max LACNIC Region AS path length visible: 26 Number of LACNIC addresses announced to Internet: 76760576 Equivalent to 4 /8s, 147 /16s and 70 /24s Percentage of available LACNIC address space announced: 57.2
LACNIC AS Blocks 26592-26623, 27648-28671, 52224-53247, 262144-263167 plus ERX transfers LACNIC Address Blocks 177/8, 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: 7625 Total AfriNIC prefixes after maximum aggregation: 1876 AfriNIC Deaggregation factor: 4.06 Prefixes being announced from the AfriNIC address blocks: 5921 Unique aggregates announced from the AfriNIC address blocks: 1715 AfriNIC Region origin ASes present in the Internet Routing Table: 417 AfriNIC Prefixes per ASN: 14.20 AfriNIC Region origin ASes announcing only one prefix: 132 AfriNIC Region transit ASes present in the Internet Routing Table: 90 Average AfriNIC Region AS path length visible: 5.2 Max AfriNIC Region AS path length visible: 31 Number of AfriNIC addresses announced to Internet: 21476096 Equivalent to 1 /8s, 71 /16s and 179 /24s Percentage of available AfriNIC address space announced: 64.0
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 1858 9453 512 Korea Telecom (KIX) 7545 1421 299 78 TPG Internet Pty Ltd 4755 1381 379 158 TATA Communications formerly 17488 1363 156 121 Hathway IP Over Cable Interne 17974 1273 303 89 PT TELEKOMUNIKASI INDONESIA 24560 1055 309 173 Bharti Airtel Ltd., Telemedia 9583 1032 76 491 Sify Limited 4808 980 1723 267 CNCGROUP IP network: China169 18101 897 116 135 Reliance Infocom Ltd Internet 9829 827 694 27 BSNL National Internet Backbo
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 3761 3922 279 bellsouth.net, inc. 4323 2654 1106 397 Time Warner Telecom 1785 1797 698 131 PaeTec Communications, Inc. 19262 1779 4836 281 Verizon Global Networks 20115 1506 1528 643 Charter Communications 7018 1411 5660 903 AT&T WorldNet Services 6478 1395 280 110 AT&T Worldnet Services 2386 1306 555 924 AT&T Data Communications Serv 11492 1254 232 66 Cable One 22773 1227 2859 62 Cox 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 3292 446 2028 390 TDC Tele Danmark 8866 435 133 25 Bulgarian Telecommunication C 8551 402 353 46 Bezeq International 702 397 1866 311 UUNET - Commercial IP service 34984 391 91 190 BILISIM TELEKOM 3320 378 7332 331 Deutsche Telekom AG 3301 377 1688 334 TeliaNet Sweden 30890 377 95 123 Evolva Telecom 12479 371 576 5 Uni2 Autonomous System 31148 353 18 85 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 1333 249 154 TVCABLE BOGOTA 8151 1330 2599 366 UniNet S.A. de C.V. 28573 1183 928 84 NET Servicos de Comunicao S.A 7303 828 441 107 Telecom Argentina Stet-France 6503 806 225 258 AVANTEL, S.A. 22047 565 310 15 VTR PUNTO NET S.A. 14420 559 44 74 CORPORACION NACIONAL DE TELEC 3816 486 212 96 Empresa Nacional de Telecomun 7738 478 922 30 Telecomunicacoes da Bahia S.A 14117 454 32 28 Telefonica del Sur 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 1116 445 10 TEDATA 24863 741 147 39 LINKdotNET AS number 36992 651 278 159 Etisalat MISR 3741 263 907 225 The Internet Solution 24835 206 78 10 RAYA Telecom - Egypt 6713 203 199 12 Itissalat Al-MAGHRIB 29571 203 19 11 Ci Telecom Autonomous system 2018 197 277 64 Tertiary Education Network 33776 195 12 14 Starcomms Nigeria Limited 16637 154 441 91 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 3761 3922 279 bellsouth.net, inc. 4323 2654 1106 397 Time Warner Telecom 4766 1858 9453 512 Korea Telecom (KIX) 1785 1797 698 131 PaeTec Communications, Inc. 19262 1779 4836 281 Verizon Global Networks 20115 1506 1528 643 Charter Communications 7545 1421 299 78 TPG Internet Pty Ltd 7018 1411 5660 903 AT&T WorldNet Services 6478 1395 280 110 AT&T Worldnet Services 4755 1381 379 158 TATA Communications formerly
Complete listing at http://thyme.rand.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4323 2654 2257 Time Warner Telecom 1785 1797 1666 PaeTec Communications, Inc. 19262 1779 1498 Verizon Global Networks 4766 1858 1346 Korea Telecom (KIX) 7545 1421 1343 TPG Internet Pty Ltd 6478 1395 1285 AT&T Worldnet Services 17488 1363 1242 Hathway IP Over Cable Interne 4755 1381 1223 TATA Communications formerly 11492 1254 1188 Cable One 17974 1273 1184 PT TELEKOMUNIKASI INDONESIA
Complete listing at http://thyme.rand.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 4323 Time Warner Telecom 13746 UNALLOCATED 12.24.56.0/24 7018 AT&T WorldNet Servic 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
Complete listing at http://thyme.rand.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 36.0.0.0/8 38639 NTT Communications Corporatio 41.222.79.0/24 36938 >>UNKNOWN<< 41.223.92.0/22 36936 >>UNKNOWN<< 42.0.0.0/8 38639 NTT Communications Corporatio 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 62.61.221.0/24 24974 Tachyon Europe BV - Wireless 64.21.192.0/20 11610 Internet Nebraska Corporation
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 /8:21 /9:10 /10:25 /11:68 /12:207 /13:421 /14:746 /15:1349 /16:11382 /17:5580 /18:9345 /19:18568 /20:23935 /21:23941 /22:31615 /23:30514 /24:175072 /25:974 /26:1098 /27:581 /28:152 /29:13 /30:2 /31:0 /32:7
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 6389 2324 3761 bellsouth.net, inc. 4323 1426 2654 Time Warner Telecom 6478 1356 1395 AT&T Worldnet Services 10620 1225 1333 TVCABLE BOGOTA 11492 1211 1254 Cable One 1785 1076 1797 PaeTec Communications, Inc. 18566 1071 1090 Covad Communications 7011 1058 1159 Citizens Utilities 8452 1014 1116 TEDATA 19262 903 1779 Verizon Global Networks
Complete listing at http://thyme.rand.apnic.net/current/data-sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
1:93 2:14 4:13 8:313 12:2008 13:8 14:55 15:18 16:3 17:8 20:9 24:1416 27:424 31:1 32:61 33:9 34:2 38:715 40:101 41:2629 44:3 46:249 47:10 49:4 50:6 52:12 55:8 56:2 57:29 58:838 59:503 60:496 61:1137 62:1008 63:1965 64:3748 65:2332 66:4078 67:1831 68:1120 69:2900 70:755 71:375 72:1933 73:2 74:2330 75:289 76:323 77:854 78:667 79:449 80:1066 81:795 82:501 83:465 84:679 85:1016 86:481 87:698 88:331 89:1575 90:113 91:3156 92:444 93:989 94:1115 95:705 96:399 97:224 98:629 99:33 101:3 107:1 108:64 109:746 110:417 111:619 112:314 113:312 114:474 115:616 116:1126 117:660 118:564 119:999 120:167 121:709 122:1609 123:970 124:1227 125:1270 128:229 129:152 130:167 131:547 132:278 133:20 134:207 135:46 136:210 137:142 138:281 139:105 140:477 141:197 142:347 143:358 144:498 145:55 146:426 147:180 148:621 149:314 150:146 151:231 152:285 153:174 154:3 155:362 156:166 157:337 158:114 159:365 160:314 161:199 162:276 163:166 164:428 165:349 166:468 167:426 168:684 169:153 170:718 171:63 172:2 173:1089 174:412 175:242 176:1 178:607 180:688 182:246 183:246 184:164 186:757 187:587 188:879 189:807 190:4194 192:5760 193:4765 194:3448 195:2844 196:1197 198:3533 199:3637 200:5414 201:1584 202:8202 203:8276 204:4019 205:2338 206:2572 207:3021 208:3881 209:3459 210:2551 211:1291 212:1811 213:1725 214:707 215:66 216:4734 217:1584 218:548 219:400 220:1228 221:421 222:343 223:71
End of report
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