[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
[bgp-stats] Routing Table Report - Japan view
Routing Table Report 04:00 +10GMT Fri 21 Mar, 2008
Report Website: http://thyme.apnic.net
Detailed Analysis: http://thyme.apnic.net/current/
Analysis Summary
----------------
BGP routing table entries examined: 249672
Prefixes after maximum aggregation: 125630
Deaggregation factor: 1.99
Unique aggregates announced to Internet: 121258
Total ASes present in the Internet Routing Table: 27708
Prefixes per ASN: 9.01
Origin-only ASes present in the Internet Routing Table: 24161
Origin ASes announcing only one prefix: 0
Transit ASes present in the Internet Routing Table: 3547
Transit-only ASes present in the Internet Routing Table: 76
Average AS path length visible in the Internet Routing Table: 3.6
Max AS path length visible: 26
Max AS path prepend of ASN (42431) 21
Prefixes from unregistered ASNs in the Routing Table: 249671
Unregistered ASNs in the Routing Table: 27645
Number of 32-bit ASNs allocated by the RIRs: 0
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: 0
Number of addresses announced to Internet: 1847690496
Equivalent to 110 /8s, 33 /16s and 133 /24s
Percentage of available address space announced: 49.9
Percentage of allocated address space announced: inf
Percentage of available address space allocated: 0.0
Percentage of address space in use by end-sites: 0.0
Total number of prefixes smaller than registry allocations: 118855
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 0
Total APNIC prefixes after maximum aggregation: 0
APNIC Deaggregation factor: nan
Prefixes being announced from the APNIC address blocks: 0
Unique aggregates announced from the APNIC address blocks: 0
APNIC Region origin ASes present in the Internet Routing Table: 0
APNIC Prefixes per ASN: nan
APNIC Region origin ASes announcing only one prefix: 0
APNIC Region transit ASes present in the Internet Routing Table: 0
Average APNIC Region AS path length visible: nan
Max APNIC Region AS path length visible: 0
Number of APNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
Percentage of available APNIC address space announced: nan
APNIC AS Blocks 4608-4864, 7467-7722, 9216-10239, 17408-18431
(pre-ERX allocations) 23552-24575, 37888-38911, 45056-46079
APNIC Address Blocks
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 0
Total ARIN prefixes after maximum aggregation: 0
ARIN Deaggregation factor: nan
Prefixes being announced from the ARIN address blocks: 0
Unique aggregates announced from the ARIN address blocks: 0
ARIN Region origin ASes present in the Internet Routing Table: 0
ARIN Prefixes per ASN: nan
ARIN Region origin ASes announcing only one prefix: 0
ARIN Region transit ASes present in the Internet Routing Table: 0
Average ARIN Region AS path length visible: nan
Max ARIN Region AS path length visible: 0
Number of ARIN addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
Percentage of available ARIN address space announced: nan
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
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 0
Total RIPE prefixes after maximum aggregation: 0
RIPE Deaggregation factor: nan
Prefixes being announced from the RIPE address blocks: 0
Unique aggregates announced from the RIPE address blocks: 0
RIPE Region origin ASes present in the Internet Routing Table: 0
RIPE Prefixes per ASN: nan
RIPE Region origin ASes announcing only one prefix: 0
RIPE Region transit ASes present in the Internet Routing Table: 0
Average RIPE Region AS path length visible: nan
Max RIPE Region AS path length visible: 0
Number of RIPE addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
Percentage of available RIPE address space announced: nan
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
LACNIC Region Analysis Summary
------------------------------
Prefixes being announced by LACNIC Region ASes: 0
Total LACNIC prefixes after maximum aggregation: 0
LACNIC Deaggregation factor: nan
Prefixes being announced from the LACNIC address blocks: 0
Unique aggregates announced from the LACNIC address blocks: 0
LACNIC Region origin ASes present in the Internet Routing Table: 0
LACNIC Prefixes per ASN: nan
LACNIC Region origin ASes announcing only one prefix: 0
LACNIC Region transit ASes present in the Internet Routing Table: 0
Average LACNIC Region AS path length visible: nan
Max LACNIC Region AS path length visible: 0
Number of LACNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
Percentage of available LACNIC address space announced: nan
LACNIC AS Blocks 26592-26623, 27648-28671, plus ERX transfers
LACNIC Address Blocks
AfriNIC Region Analysis Summary
-------------------------------
Prefixes being announced by AfriNIC Region ASes: 0
Total AfriNIC prefixes after maximum aggregation: 0
AfriNIC Deaggregation factor: nan
Prefixes being announced from the AfriNIC address blocks: 0
Unique aggregates announced from the AfriNIC address blocks: 0
AfriNIC Region origin ASes present in the Internet Routing Table: 0
AfriNIC Prefixes per ASN: nan
AfriNIC Region origin ASes announcing only one prefix: 0
AfriNIC Region transit ASes present in the Internet Routing Table: 0
Average AfriNIC Region AS path length visible: nan
Max AfriNIC Region AS path length visible: 0
Number of AfriNIC addresses announced to Internet: 0
Equivalent to 0 /8s, 0 /16s and 0 /24s
Percentage of available AfriNIC address space announced: nan
AfriNIC AS Blocks 36864-37887 & ERX transfers
AfriNIC Address Blocks
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv MaxAgg Description
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
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
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
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
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
4755 3224 386 85 Videsh Sanchar Nigam Ltd. Aut
7018 2836 5926 1001 AT&T WorldNet Services
4323 2780 1012 365 Time Warner Telecom
2386 2778 657 849 AT&T Data Communications Serv
11492 2430 146 29 Cable One
8151 2370 2449 219 UniNet S.A. de C.V.
9583 2302 140 16 Sify Limited
9498 2246 551 65 BHARTI BT INTERNET LTD.
7011 2140 311 608 Citizens Utilities
18566 2092 296 10 Covad Communications
Complete listing at http://thyme.apnic.net/current/data-ASnet
Global Per AS Maximum Aggr summary
----------------------------------
ASN No of nets Net Savings Description
4323 2780 2415 Time Warner Telecom
11492 2430 2401 Cable One
9583 2302 2286 Sify Limited
9498 2246 2181 BHARTI BT INTERNET LTD.
8151 2370 2151 UniNet S.A. de C.V.
18566 2092 2082 Covad Communications
17488 2050 1965 Hathway IP Over Cable Interne
2386 2778 1929 AT&T Data Communications Serv
1785 2014 1907 AppliedTheory Corporation
7018 2836 1835 AT&T WorldNet Services
Complete listing at http://thyme.apnic.net/current/data-CIDRnet
List of Unregistered Origin ASNs (Global)
-----------------------------------------
Bad AS Designation Network Transit AS Description
80 UNALLOCATED 3.0.0.0/8 703 UUNET - Commercial I
3356 UNALLOCATED 4.0.0.0/9 2497 IIJ
3356 UNALLOCATED 4.0.0.0/8 2497 IIJ
21889 UNALLOCATED 4.23.112.0/24 174 Cogent Communication
21889 UNALLOCATED 4.23.113.0/24 174 Cogent Communication
21889 UNALLOCATED 4.23.114.0/24 174 Cogent Communication
21889 UNALLOCATED 4.36.116.0/24 174 Cogent Communication
21889 UNALLOCATED 4.36.116.0/23 174 Cogent Communication
21889 UNALLOCATED 4.36.117.0/24 174 Cogent Communication
21889 UNALLOCATED 4.36.118.0/24 174 Cogent Communication
Complete listing at http://thyme.apnic.net/current/data-badAS
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 /11:40 /12:137
/13:277 /14:499 /15:995 /16:9796 /17:4284 /18:7289
/19:15273 /20:17489 /21:16680 /22:21178 /23:22335 /24:131044
/25:756 /26:945 /27:487 /28:106 /29:9 /30:1
/31:0 /32:8
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
11492 1215 2430 Cable One
2386 1062 2778 AT&T Data Communications Serv
18566 1046 2092 Covad Communications
20115 1000 2074 Charter Communications
7011 978 2140 Citizens Utilities
6478 933 1868 AT&T Worldnet Services
9498 895 2246 BHARTI BT INTERNET LTD.
4755 889 3224 Videsh Sanchar Nigam Ltd. Aut
22773 848 1788 Cox Communications, Inc.
6197 797 1978 BellSouth Network Solutions,
Complete listing at http://thyme.apnic.net/current/data/sXXas-nos
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:9 8:102 11:1 12:1998 13:2 15:21
16:3 17:6 18:13 20:35 24:1046 25:1
32:60 33:4 38:402 40:95 41:623 44:2
47:8 52:3 55:3 56:3 57:22 58:512
59:427 60:418 61:983 62:1106 63:1965 64:3353
65:2359 66:3619 67:1064 68:661 69:2108 70:510
71:139 72:1519 73:6 74:884 75:221 76:275
77:621 78:528 79:120 80:882 81:849 82:606
83:366 84:548 85:950 86:390 87:632 88:306
89:1202 90:11 91:1117 92:234 93:140 96:18
97:16 98:100 99:3 116:566 117:279 118:77
119:347 121:461 122:722 123:297 124:803 125:1127
128:321 129:201 130:125 131:402 132:67 133:9
134:188 135:32 136:221 137:119 138:154 139:65
140:482 141:109 142:378 143:279 144:346 145:54
146:337 147:132 148:493 149:180 150:121 151:161
152:142 153:127 154:11 155:266 156:208 157:252
158:167 159:222 160:265 161:110 162:206 163:197
164:568 165:431 166:295 167:313 168:593 169:130
170:425 171:28 172:3 189:145 190:1521 192:5770
193:4101 194:3260 195:2371 196:1064 198:3767 199:3235
200:5502 201:1311 202:7529 203:7800 204:4001 205:2090
206:2413 207:2718 208:3203 209:3475 210:2522 211:1035
212:1284 213:1597 214:457 215:48 216:4228 217:1228
218:349 219:403 220:1057 221:403 222:313
End of report
