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[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Wed 02 Apr, 2008
Report Website: http://thyme.apnic.net Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary ----------------
BGP routing table entries examined: 251039 Prefixes after maximum aggregation: 126136 Deaggregation factor: 1.99 Unique aggregates announced to Internet: 121930 Total ASes present in the Internet Routing Table: 27795 Prefixes per ASN: 9.03 Origin-only ASes present in the Internet Routing Table: 24215 Origin ASes announcing only one prefix: 11240 Transit ASes present in the Internet Routing Table: 3580 Transit-only ASes present in the Internet Routing Table: 82 Average AS path length visible in the Internet Routing Table: 3.6 Max AS path length visible: 18 Max AS path prepend of ASN (39375) 13 Prefixes from unregistered ASNs in the Routing Table: 25119 Unregistered ASNs in the Routing Table: 1918 Number of 32-bit ASNs allocated by the RIRs: 47 Prefixes from 32-bit ASNs in the Routing Table: 8 Special use prefixes present in the Routing Table: 0 Prefixes being announced from unallocated address space: 860 Number of addresses announced to Internet: 1853694240 Equivalent to 110 /8s, 125 /16s and 33 /24s Percentage of available address space announced: 50.0 Percentage of allocated address space announced: 61.4 Percentage of available address space allocated: 81.4 Percentage of address space in use by end-sites: 71.1 Total number of prefixes smaller than registry allocations: 119784
APNIC Region Analysis Summary -----------------------------
Prefixes being announced by APNIC Region ASes: 42429 Total APNIC prefixes after maximum aggregation: 13361 APNIC Deaggregation factor: 3.18 Prefixes being announced from the APNIC address blocks: 54660 Unique aggregates announced from the APNIC address blocks: 23367 APNIC Region origin ASes present in the Internet Routing Table: 1912 APNIC Prefixes per ASN: 28.59 APNIC Region origin ASes announcing only one prefix: 548 APNIC Region transit ASes present in the Internet Routing Table: 351 Average APNIC Region AS path length visible: 3.7 Max APNIC Region AS path length visible: 14 Number of APNIC addresses announced to Internet: 337958496 Equivalent to 20 /8s, 36 /16s and 214 /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 APNIC Address Blocks 58/8, 59/8, 60/8, 61/8, 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, 202/8, 203/8, 210/8, 211/8, 218/8, 219/8, 220/8, 221/8, 222/8,
ARIN Region Analysis Summary ----------------------------
Prefixes being announced by ARIN Region ASes: 106889 Total ARIN prefixes after maximum aggregation: 58871 ARIN Deaggregation factor: 1.82 Prefixes being announced from the ARIN address blocks: 85661 Unique aggregates announced from the ARIN address blocks: 33947 ARIN Region origin ASes present in the Internet Routing Table: 11669 ARIN Prefixes per ASN: 7.34 ARIN Region origin ASes announcing only one prefix: 4535 ARIN Region transit ASes present in the Internet Routing Table: 1043 Average ARIN Region AS path length visible: 3.4 Max ARIN Region AS path length visible: 15 Number of ARIN addresses announced to Internet: 361181312 Equivalent to 21 /8s, 135 /16s and 48 /24s Percentage of available ARIN address space announced: 74.2
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 ARIN Address Blocks 24/8, 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, 173/8, 174/8, 199/8, 204/8, 205/8, 206/8, 207/8, 208/8, 209/8, 216/8,
RIPE Region Analysis Summary ----------------------------
Prefixes being announced by RIPE Region ASes: 53813 Total RIPE prefixes after maximum aggregation: 33122 RIPE Deaggregation factor: 1.62 Prefixes being announced from the RIPE address blocks: 49102 Unique aggregates announced from the RIPE address blocks: 32786 RIPE Region origin ASes present in the Internet Routing Table: 11107 RIPE Prefixes per ASN: 4.42 RIPE Region origin ASes announcing only one prefix: 5805 RIPE Region transit ASes present in the Internet Routing Table: 1696 Average RIPE Region AS path length visible: 4.0 Max RIPE Region AS path length visible: 18 Number of RIPE addresses announced to Internet: 351029376 Equivalent to 20 /8s, 236 /16s and 72 /24s Percentage of available RIPE address space announced: 80.5
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 RIPE Address Blocks 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, 193/8, 194/8, 195/8, 212/8, 213/8, 217/8,
LACNIC Region Analysis Summary ------------------------------
Prefixes being announced by LACNIC Region ASes: 19201 Total LACNIC prefixes after maximum aggregation: 4845 LACNIC Deaggregation factor: 3.96 Prefixes being announced from the LACNIC address blocks: 17546 Unique aggregates announced from the LACNIC address blocks: 9631 LACNIC Region origin ASes present in the Internet Routing Table: 883 LACNIC Prefixes per ASN: 19.87 LACNIC Region origin ASes announcing only one prefix: 275 LACNIC Region transit ASes present in the Internet Routing Table: 153 Average LACNIC Region AS path length visible: 4.0 Max LACNIC Region AS path length visible: 16 Number of LACNIC addresses announced to Internet: 50182272 Equivalent to 2 /8s, 253 /16s and 184 /24s Percentage of available LACNIC address space announced: 49.9
LACNIC AS Blocks 26592-26623, 27648-28671, 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: 3587 Total AfriNIC prefixes after maximum aggregation: 1124 AfriNIC Deaggregation factor: 3.19 Prefixes being announced from the AfriNIC address blocks: 3969 Unique aggregates announced from the AfriNIC address blocks: 1803 AfriNIC Region origin ASes present in the Internet Routing Table: 232 AfriNIC Prefixes per ASN: 17.11 AfriNIC Region origin ASes announcing only one prefix: 77 AfriNIC Region transit ASes present in the Internet Routing Table: 44 Average AfriNIC Region AS path length visible: 3.7 Max AfriNIC Region AS path length visible: 14 Number of AfriNIC addresses announced to Internet: 10161408 Equivalent to 0 /8s, 155 /16s and 13 /24s Percentage of available AfriNIC address space announced: 30.3
AfriNIC AS Blocks 36864-37887 & ERX transfers AfriNIC Address Blocks 41/8, 196/8,
APNIC Region per AS prefix count summary ----------------------------------------
ASN No of nets /20 equiv MaxAgg Description 4755 1621 387 87 Videsh Sanchar Nigam Ltd. Aut 9583 1151 140 16 Sify Limited 9498 1138 550 63 BHARTI BT INTERNET LTD. 17488 1009 68 83 Hathway IP Over Cable Interne 4134 857 12535 319 CHINANET-BACKBONE 4766 850 6005 341 Korea Telecom (KIX) 18101 673 126 52 Reliance Infocom Ltd Internet 9829 587 450 12 BSNL National Internet Backbo 4812 562 969 92 China Telecom (Shanghai) 1221 539 1950 415 Telstra Pty Ltd
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 7018 1433 5927 1012 AT&T WorldNet Services 4323 1398 1028 368 Time Warner Telecom 2386 1390 657 845 AT&T Data Communications Serv 11492 1210 145 48 Cable One 7011 1080 315 614 Citizens Utilities 18566 1044 296 10 Covad Communications 1785 1016 479 107 AppliedTheory Corporation 6197 990 728 477 BellSouth Network Solutions, 174 966 6834 812 Cogent Communications 20115 920 864 510 Charter Communications
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 3292 400 1787 364 TDC Tele Danmark 8452 352 188 7 TEDATA 3301 339 1443 308 TeliaNet Sweden 3320 323 7045 268 Deutsche Telekom AG 5462 292 666 26 Telewest Broadband 8866 292 78 24 Bulgarian Telecommunication C 8551 279 267 42 Bezeq International 3215 278 2671 91 France Telecom Transpac 6746 268 127 245 Dynamic Network Technologies, 680 259 2046 258 DFN-IP service G-WiN
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 1188 2448 223 UniNet S.A. de C.V. 11830 555 299 9 Instituto Costarricense de El 7303 451 220 59 Telecom Argentina Stet-France 16814 426 27 10 NSS, S.A. 11172 410 117 70 Servicios Alestra S.A de C.V 6471 400 85 39 ENTEL CHILE S.A. 10620 399 104 51 TVCABLE BOGOTA 14117 352 25 15 Telefonica del Sur S.A. 22047 324 270 14 VTR PUNTO NET S.A. 10481 310 152 10 Prima S.A.
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 24863 453 60 30 LINKdotNET AS number 3741 288 869 224 The Internet Solution 20858 216 34 3 EgyNet 2018 203 272 111 Tertiary Education Network 6713 143 135 11 Itissalat Al-MAGHRIB 33783 130 9 16 EEPAD TISP TELECOM & INTERNET 5536 121 8 16 Internet Egypt Network 33776 99 6 7 Starcomms Nigeria Limited 24835 89 48 7 RAYA Telecom - Egypt 2905 83 176 74 The Internetworking Company o
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 1920 3009 94 bellsouth.net, inc. 23577 1636 34 699 Korea Telecom (ATM-MPLS) 4755 1621 387 87 Videsh Sanchar Nigam Ltd. Aut 7018 1433 5927 1012 AT&T WorldNet Services 4323 1398 1028 368 Time Warner Telecom 2386 1390 657 845 AT&T Data Communications Serv 11492 1210 145 48 Cable One 8151 1188 2448 223 UniNet S.A. de C.V. 9583 1151 140 16 Sify Limited 9498 1138 550 63 BHARTI BT INTERNET LTD.
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary ----------------------------------
ASN No of nets Net Savings Description 4755 1621 1534 Videsh Sanchar Nigam Ltd. Aut 11492 1210 1162 Cable One 9583 1151 1135 Sify Limited 9498 1138 1075 BHARTI BT INTERNET LTD. 18566 1044 1034 Covad Communications 4323 1398 1030 Time Warner Telecom 8151 1188 965 UniNet S.A. de C.V. 17676 1018 952 Softbank BB Corp. 23577 1636 937 Korea Telecom (ATM-MPLS) 17488 1009 926 Hathway IP Over Cable Interne
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global) -----------------------------------------
Bad AS Designation Network Transit AS Description 14780 UNALLOCATED 4.79.181.0/24 10310 Yahoo! 12180 UNALLOCATED 4.79.248.0/24 1239 Sprint 26478 UNALLOCATED 8.7.228.0/24 6461 AboveNet Communicati 12180 UNALLOCATED 8.10.16.0/24 3549 Global Crossing 12180 UNALLOCATED 8.10.58.0/23 3549 Global Crossing 14779 UNALLOCATED 8.12.144.0/24 10310 Yahoo! 16927 UNALLOCATED 12.0.252.0/23 7018 AT&T WorldNet Servic 22492 UNALLOCATED 12.2.46.0/24 1239 Sprint 14984 UNALLOCATED 12.2.192.0/24 7132 SBC Internet Service 15132 UNALLOCATED 12.9.150.0/24 701 UUNET Technologies,
Complete listing at http://thyme.apnic.net/current/data-badAS
Advertised Unallocated Addresses --------------------------------
Network Origin AS Description 24.51.159.0/24 7843 Adelphia Corp. 24.54.224.0/19 20001 HoldCo LLC - Road Runner 24.75.160.0/19 7843 Adelphia Corp. 24.75.192.0/18 7843 Adelphia Corp. 24.142.40.0/21 7018 AT&T WorldNet Services 24.142.160.0/19 7018 AT&T WorldNet Services 24.246.0.0/17 7018 AT&T WorldNet Services 24.246.128.0/18 7018 AT&T WorldNet Services 62.61.220.0/24 24974 Tachyon Europe BV - Wireless 63.140.213.0/24 22555 Universal Talkware Corporatio
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 /9:9 /10:16 /11:41 /12:137 /13:277 /14:499 /15:1002 /16:9817 /17:4334 /18:7296 /19:15275 /20:17590 /21:16795 /22:21342 /23:22366 /24:131926 /25:790 /26:900 /27:484 /28:106 /29:9 /30:1 /31:0 /32:8
Advertised prefixes smaller than registry allocations -----------------------------------------------------
ASN No of nets Total ann. Description 11492 1196 1210 Cable One 2386 1090 1390 AT&T Data Communications Serv 18566 1025 1044 Covad Communications 9583 986 1151 Sify Limited 4755 964 1621 Videsh Sanchar Nigam Ltd. Aut 7011 962 1080 Citizens Utilities 6478 896 897 AT&T Worldnet Services 17488 822 1009 Hathway IP Over Cable Interne 9498 810 1138 BHARTI BT INTERNET LTD. 23577 809 1636 Korea Telecom (ATM-MPLS)
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global) ----------------------------------------------
4:9 8:102 12:1997 13:1 15:20 16:3 17:6 18:13 20:35 24:1047 25:1 32:60 33:4 38:409 40:95 41:628 44:2 47:8 52:3 55:3 56:3 57:22 58:515 59:430 60:405 61:989 62:1191 63:1953 64:3369 65:2375 66:3611 67:1112 68:651 69:2123 70:536 71:127 72:1550 73:6 74:908 75:222 76:284 77:619 78:550 79:134 80:890 81:827 82:606 83:369 84:561 85:939 86:396 87:655 88:323 89:1215 90:11 91:1128 92:240 93:231 96:21 97:16 98:109 99:3 116:581 117:280 118:104 119:375 121:468 122:729 123:311 124:837 125:1103 128:322 129:201 130:124 131:404 132:69 133:9 134:188 135:32 136:221 137:119 138:156 139:65 140:484 141:110 142:380 143:282 144:346 145:50 146:338 147:134 148:495 149:180 150:120 151:166 152:142 153:127 154:11 155:267 156:207 157:254 158:169 159:223 160:243 161:110 162:210 163:218 164:573 165:431 166:298 167:314 168:607 169:130 170:427 171:28 172:3 189:166 190:1594 192:5804 193:4093 194:3266 195:2375 196:1031 198:3771 199:3236 200:5480 201:1325 202:7530 203:7788 204:4004 205:2087 206:2407 207:2721 208:3239 209:3489 210:2527 211:1033 212:1336 213:1619 214:454 215:48 216:4276 217:1237 218:360 219:404 220:1066 221:401 222:313
End of report
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