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[bgp-stats] Routing Table Report - Japan view
* BGP Statistics focusing on the Asia Pacific Region *
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Routing Table Report 08:00 16 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108683
Total ASes present in the Internet Routing Table: 12087
Origin-only ASes present in the Internet Routing Table: 10500
Origin ASes announcing only one prefix: 4497
Transit ASes present in the Internet Routing Table: 1587
Transit-only ASes present in the Internet Routing Table: 53
Average AS path length visible in the Internet Routing Table: 5.3
Max AS path length visible: 16
Illegal AS announcements present in the Routing Table: 77
Non-routable prefixes present in the Routing Table: 0
Prefixes being announced from the IANA Reserved Address blocks: 14
Number of addresses announced to Internet: 1258319993
Equivalent to 75 /8s, 0 /16s and 112 /24s
Percentage of available address space announced: 33.9
Percentage of allocated address space announced: 64.8
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 73822
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16921
Prefixes being announced from the APNIC address blocks: 15397
APNIC Region origin ASes present in the Internet Routing Table: 1400
APNIC Region origin ASes announcing only one prefix: 458
APNIC Region transit ASes present in the Internet Routing Table: 238
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 88479906
Equivalent to 5 /8s, 70 /16s and 24 /24s
Percentage of available APNIC address space announced: 74.7
APNIC AS Blocks 4608 - 4864, 7467 - 7722, 9216 - 10239
17408 - 18431, 23552 - 24575
APNIC Address Blocks 61/8, 202/7, 210/7 and 218/7
ARIN Region Analysis Summary
----------------------------
Prefixes being announced by ARIN Region ASes: 73904
Prefixes being announced from the ARIN address blocks: 52709
ARIN Region origin ASes present in the Internet Routing Table: 7187
ARIN Region origin ASes announcing only one prefix: 2200
ARIN Region transit ASes present in the Internet Routing Table: 733
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221208026
Equivalent to 13 /8s, 47 /16s and 93 /24s
Percentage of available ARIN address space announced: 82.4
ARIN AS Blocks 1 - 1876, 1902 - 2042, 2044 - 2046, 2048 - 2106
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
ARIN Address Blocks 24/8, 63/8, 64/6, 68/8, 199/8, 200/8, 204/6,
208/7 and 216/8
RIPE Region Analysis Summary
----------------------------
Prefixes being announced by RIPE Region ASes: 17857
Prefixes being announced from the RIPE address blocks: 14489
RIPE Region origin ASes present in the Internet Routing Table: 3452
RIPE Region origin ASes announcing only one prefix: 1839
RIPE Region transit ASes present in the Internet Routing Table: 605
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 110174220
Equivalent to 6 /8s, 145 /16s and 32 /24s
Percentage of available RIPE address space announced: 73.0
RIPE AS Blocks 1877 - 1901, 2043, 2047, 2107 - 2136, 2585 - 2614
2773 - 2822, 2830 - 2879, 3154 - 3353, 5377 - 5631
6656 - 6911, 8192 - 9215, 12288 - 13311, 15360 - 16383
20480 - 21503
RIPE Address Blocks 62/8, 80/7, 193/8, 194/7, 212/7 and 217/8
APNIC Region per AS prefix count summary
----------------------------------------
ASN No of nets /20 equiv Description
1221 1540 1303 Telstra Pty Ltd
2764 413 380 connect.com.au pty ltd
703 397 360 UUNET Technologies, Inc.
2907 372 1848 SINET Japan
4755 359 169 Videsh Sanchar Nigam Ltd. Aut
7474 299 275 Optus Communications Pty Ltd
4134 248 1892 Data Communications Bureau
4766 184 1431 Korea Internet Exchange for "
4740 169 24 OzEmail ISP
17676 168 1957 XTAGE CORPORATION
9443 166 53 Primus Telecommunications
1659 165 1157 Taiwan Academic Network (TANe
17557 151 12 Pakistan Telecom
7539 146 145 TANet2, sponsored by NSC, TAI
9583 139 47 Satyam Infoway Ltd.,
4812 137 305 China Telecom (Group) - Shang
2521 136 171 PSINet Japan
4786 131 15 NetConnect Communications Pty
9768 128 362 Korea Telecom
7657 121 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1082 2146 UUNET Technologies, Inc.
3301 433 949 TeliaNet Sweden
1257 268 500 SWIPnet Swedish IP Network
3215 234 568 France Telecom / &Equant
680 231 2148 DFN-IP service G-WiN
5515 197 688 Sonera Finland Autonomous Sys
3320 196 1959 Deutsche Telekom AG
786 184 1890 The JANET IP Service
8708 167 17 Romania Data Systems S.A.
5400 138 64 Concert European Core Network
719 133 289 LANLINK autonomous system
2856 133 777 BTnet UK Regional network
3303 131 560 Swisscom Ltd
5549 121 82 Nextra Deutschland GmbH + Co.
517 112 248 KPNQwest Germany GmbH
12302 108 7 MobiFon S.A.
1273 107 165 Cable & Wireless ECRC GmbH
3269 105 808 TELECOM ITALIA
1290 100 398 PSINet UK Ltd.
8297 99 31 Teleglobe Autonomous System i
ARIN Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
701 2241 9163 UUNET Technologies, Inc.
7018 1088 7302 AT&T
3967 1056 483 Exodus Communication
1 848 8521 BBN Planet
7046 821 972 UUNET Technologies, Inc.
1239 719 3368 Sprint
8010 718 98 PublicNet Communications, Inc
3908 684 1532 Supernet, Inc.
209 580 2216 Qwest
852 542 707 Telus Advanced Communications
4323 506 414 Time Warner Communications, I
690 498 71 Merit Network
2149 480 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 447 113 Cable & Wireless USA
705 426 249 UUNET Technologies, Inc.
3549 396 888 Global Crossing
3561 379 2303 Cable & Wireless USA
4151 365 1254 USDA
3741 351 766 The Internet Solution
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2241 9163 UUNET Technologies, Inc.
1221 1540 1303 Telstra Pty Ltd
7018 1088 7302 AT&T
702 1082 2146 UUNET Technologies, Inc.
3967 1056 483 Exodus Communication
1 848 8521 BBN Planet
7046 821 972 UUNET Technologies, Inc.
1239 719 3368 Sprint
8010 718 98 PublicNet Communications, Inc
3908 684 1532 Supernet, Inc.
209 580 2216 Qwest
852 542 707 Telus Advanced Communications
4323 506 414 Time Warner Communications, I
690 498 71 Merit Network
2149 480 333 Performance Systems, Inc.
2914 472 2269 Verio, Inc.
4293 447 113 Cable & Wireless USA
3301 433 949 TeliaNet Sweden
705 426 249 UUNET Technologies, Inc.
2764 413 380 connect.com.au pty ltd
List of Unregistered ASNs (Global)
----------------------------------
Bad AS Designation Network Transit AS Description
8972 UNALLOCATED 62.75.128.0/17 5669 VIA NET.WORKS Inc
6971 UNALLOCATED 64.42.0.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.16.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.32.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.56.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.60.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.64.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.72.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.76.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.80.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.88.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.96.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.104.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.108.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.112.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.87.64.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 66.182.0.0/18 2516 Kokusai Denshin Denw
2027 UNALLOCATED 150.185.128.0/18 8143 Publicom Corp.
6971 UNALLOCATED 192.103.229.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.230.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.236.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 192.103.237.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 199.164.144.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 199.249.223.0/24 2516 Kokusai Denshin Denw
9541 UNALLOCATED 202.163.64.0/18 8961 Emirates Internet Ex
9541 UNALLOCATED 202.163.120.0/21 8961 Emirates Internet Ex
65000 PRIVATE 203.21.200.0/24 1221 Telstra Pty Ltd
6971 UNALLOCATED 204.69.206.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 205.163.58.0/24 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/22 2914 Verio, Inc.
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 207.12.40.0/22 2516 Kokusai Denshin Denw
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
6971 UNALLOCATED 208.1.124.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 208.1.200.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.105.192.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.121.224.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.173.192.0/19 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 6453 Teleglobe Inc.
6971 UNALLOCATED 216.174.196.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.202.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.204.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.224.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.240.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.244.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.252.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.136.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.140.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.160.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.168.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.176.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.184.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.188.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.200.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.204.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.208.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.216.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.220.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.224.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.232.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.236.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.240.0/20 2914 Verio, Inc.
6971 UNALLOCATED 216.229.96.0/20 2516 Kokusai Denshin Denw
8972 UNALLOCATED 217.172.160.0/19 5669 VIA NET.WORKS Inc
Advertised Unregistered Addresses
---------------------------------
Network Origin AS Description
39.0.0.0/8 4554 Exchange Point Blocks
132.0.0.0/10 568 DISO-UNRRA
134.137.0.0/16 400 Headquarters Standard Systems
135.0.0.0/13 10455 Lucent Technologies
137.0.0.0/13 568 DISO-UNRRA
138.94.0.0/16 1 BBN Planet
144.7.0.0/16 701 UUNET Technologies, Inc.
153.34.0.0/15 701 UUNET Technologies, Inc.
153.36.0.0/14 701 UUNET Technologies, Inc.
154.150.0.0/16 6494 IDCI
158.0.0.0/13 568 DISO-UNRRA
164.233.0.0/16 6020 DISA NETWORK SERVICES
164.235.0.0/16 6025 US DOD NIC Unregistered
201.115.100.0/24 7018 AT&T
Number of prefixes announced per prefix length (Global)
-------------------------------------------------------
/1:0 /2:0 /3:0 /4:0 /5:0 /6:0
/7:0 /8:18 /9:5 /10:7 /11:12 /12:36
/13:89 /14:220 /15:385 /16:7070 /17:1356 /18:2417
/19:7060 /20:6024 /21:4747 /22:7120 /23:8942 /24:61579
/25:333 /26:324 /27:273 /28:252 /29:159 /30:182
/31:0 /32:73
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1432 2241 UUNET Technologies, Inc.
1221 1398 1540 Telstra Pty Ltd
3967 873 1056 Exodus Communication
702 737 1082 UUNET Technologies, Inc.
8010 703 718 PublicNet Communications, Inc
7046 652 821 UUNET Technologies, Inc.
7018 562 1088 AT&T
690 495 498 Merit Network
3908 462 684 Supernet, Inc.
4323 437 506 Time Warner Communications, I
4293 432 447 Cable & Wireless USA
209 408 580 Qwest
1 407 848 BBN Planet
1239 404 719 Sprint
2764 366 413 connect.com.au pty ltd
2149 357 480 Performance Systems, Inc.
852 355 542 Telus Advanced Communications
705 336 426 UUNET Technologies, Inc.
703 326 397 UUNET Technologies, Inc.
4151 320 365 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:424 13:10 15:1 17:5
20:1 24:842 25:1 26:1 32:73 38:13
43:2 44:2 47:2 52:1 53:9 57:12
61:124 62:156 63:1904 64:1502 65:919 66:714
67:6 80:106 128:60 129:113 130:23 131:42
132:13 133:2 134:134 135:8 136:119 137:99
138:197 139:47 140:173 141:58 142:67 143:43
144:148 145:11 146:201 147:133 148:180 149:86
150:42 151:191 152:384 153:71 154:8 155:84
156:92 157:108 158:69 159:70 160:46 161:55
162:77 163:129 164:128 165:121 166:207 167:161
168:119 169:46 170:297 171:2 192:5381 193:2042
194:2057 195:864 196:457 198:3750 199:3440 200:2352
201:1 202:2837 203:4585 204:3357 205:2144 206:2768
207:2655 208:2977 209:2961 210:548 211:148 212:966
213:533 214:9 215:16 216:2990 217:435 218:6
End of report
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