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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 15 Nov, 2001
Analysis Summary
----------------
BGP routing table entries examined: 108520
Total ASes present in the Internet Routing Table: 12070
Origin-only ASes present in the Internet Routing Table: 10476
Origin ASes announcing only one prefix: 4483
Transit ASes present in the Internet Routing Table: 1594
Transit-only ASes present in the Internet Routing Table: 52
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: 62
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: 1259255862
Equivalent to 75 /8s, 14 /16s and 184 /24s
Percentage of available address space announced: 34.0
Percentage of allocated address space announced: 64.9
Percentage of available address space allocated: 52.4
Total number of prefixes smaller than registry allocations: 73666
APNIC Region Analysis Summary
-----------------------------
Prefixes being announced by APNIC Region ASes: 16896
Prefixes being announced from the APNIC address blocks: 15395
APNIC Region origin ASes present in the Internet Routing Table: 1400
APNIC Region origin ASes announcing only one prefix: 457
APNIC Region transit ASes present in the Internet Routing Table: 241
Average APNIC Region AS path length visible: 5.2
Max APNIC Region AS path length visible: 14
Number of APNIC addresses announced to Internet: 88698918
Equivalent to 5 /8s, 73 /16s and 112 /24s
Percentage of available APNIC address space announced: 74.9
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: 73797
Prefixes being announced from the ARIN address blocks: 52657
ARIN Region origin ASes present in the Internet Routing Table: 7175
ARIN Region origin ASes announcing only one prefix: 2189
ARIN Region transit ASes present in the Internet Routing Table: 739
Average ARIN Region AS path length visible: 5.2
Max ARIN Region AS path length visible: 16
Number of ARIN addresses announced to Internet: 221023582
Equivalent to 13 /8s, 44 /16s and 141 /24s
Percentage of available ARIN address space announced: 82.3
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: 17826
Prefixes being announced from the RIPE address blocks: 14448
RIPE Region origin ASes present in the Internet Routing Table: 3448
RIPE Region origin ASes announcing only one prefix: 1837
RIPE Region transit ASes present in the Internet Routing Table: 606
Average RIPE Region AS path length visible: 5.9
Max RIPE Region AS path length visible: 15
Number of RIPE addresses announced to Internet: 109934348
Equivalent to 6 /8s, 141 /16s and 119 /24s
Percentage of available RIPE address space announced: 72.8
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 1537 1303 Telstra Pty Ltd
2764 405 357 connect.com.au pty ltd
703 394 359 UUNET Technologies, Inc.
2907 372 1848 SINET Japan
4755 361 171 Videsh Sanchar Nigam Ltd. Aut
7474 299 275 Optus Communications Pty Ltd
4134 254 1922 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
4812 137 305 China Telecom (Group) - Shang
2521 136 171 PSINet Japan
9583 136 46 Satyam Infoway Ltd.,
4786 131 15 NetConnect Communications Pty
9768 128 362 Korea Telecom
7657 122 23 The Internet Group Limited
RIPE Region per AS prefix count summary
---------------------------------------
ASN No of nets /20 equiv Description
702 1037 2032 UUNET Technologies, Inc.
3301 433 949 TeliaNet Sweden
1257 269 500 SWIPnet Swedish IP Network
3215 232 568 France Telecom / &Equant
680 231 2148 DFN-IP service G-WiN
5515 197 688 Sonera Finland Autonomous Sys
3320 195 1957 Deutsche Telekom AG
786 184 1890 The JANET IP Service
8708 168 17 Romania Data Systems S.A.
5400 138 64 Concert European Core Network
719 133 289 LANLINK autonomous system
2856 132 777 BTnet UK Regional network
3303 131 560 Swisscom Ltd
5549 121 82 Nextra Deutschland GmbH + Co.
517 114 250 KPNQwest Germany GmbH
1273 108 167 Cable & Wireless ECRC GmbH
12302 108 7 MobiFon S.A.
3269 105 808 TELECOM ITALIA
1290 101 398 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 2249 9164 UUNET Technologies, Inc.
7018 1089 7318 AT&T
3967 1056 483 Exodus Communication
1 839 8536 BBN Planet
7046 769 969 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 683 1518 Supernet, Inc.
209 575 2213 Qwest
852 542 707 Telus Advanced Communications
4323 504 410 Time Warner Communications, I
690 492 70 Merit Network
2149 481 333 Performance Systems, Inc.
2914 471 2253 Verio, Inc.
4293 447 113 Cable & Wireless USA
705 420 248 UUNET Technologies, Inc.
3549 394 888 Global Crossing
3561 379 2301 Cable & Wireless USA
4151 366 1254 USDA
3741 351 766 The Internet Solution
Global Per AS prefix count summary
----------------------------------
ASN No of nets /20 equiv Description
701 2249 9164 UUNET Technologies, Inc.
1221 1537 1303 Telstra Pty Ltd
7018 1089 7318 AT&T
3967 1056 483 Exodus Communication
702 1037 2032 UUNET Technologies, Inc.
1 839 8536 BBN Planet
7046 769 969 UUNET Technologies, Inc.
8010 718 98 PublicNet Communications, Inc
1239 716 3352 Sprint
3908 683 1518 Supernet, Inc.
209 575 2213 Qwest
852 542 707 Telus Advanced Communications
4323 504 410 Time Warner Communications, I
690 492 70 Merit Network
2149 481 333 Performance Systems, Inc.
2914 471 2253 Verio, Inc.
4293 447 113 Cable & Wireless USA
3301 433 949 TeliaNet Sweden
705 420 248 UUNET Technologies, Inc.
2764 405 357 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 64.42.0.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.0.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 64.42.16.0/20 2914 Verio, Inc.
6971 UNALLOCATED 64.42.32.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.40.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.48.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.56.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.60.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.64.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.72.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.80.0/21 2914 Verio, Inc.
6971 UNALLOCATED 64.42.104.0/22 2914 Verio, Inc.
6971 UNALLOCATED 64.42.108.0/22 6461 AboveNet Communicati
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 2914 Verio, Inc.
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 2914 Verio, Inc.
6971 UNALLOCATED 205.163.58.0/24 2914 Verio, Inc.
6971 UNALLOCATED 206.58.248.0/22 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.248.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 206.58.252.0/23 2914 Verio, Inc.
6971 UNALLOCATED 206.58.254.0/23 2914 Verio, Inc.
6971 UNALLOCATED 207.12.40.0/22 2914 Verio, Inc.
5757 UNALLOCATED 207.19.224.0/24 701 UUNET Technologies,
6971 UNALLOCATED 208.1.124.0/23 2914 Verio, Inc.
6971 UNALLOCATED 208.1.200.0/21 2914 Verio, Inc.
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 2914 Verio, Inc.
6971 UNALLOCATED 216.174.192.0/21 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.192.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/23 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.200.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.174.208.0/20 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.174.232.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.128.0/18 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.128.0/17 2516 Kokusai Denshin Denw
6971 UNALLOCATED 216.210.140.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.160.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.176.0/21 2914 Verio, Inc.
6971 UNALLOCATED 216.210.184.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.200.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.216.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.220.0/22 6461 AboveNet Communicati
6971 UNALLOCATED 216.210.224.0/21 6461 AboveNet Communicati
6971 UNALLOCATED 216.210.232.0/22 2914 Verio, Inc.
6971 UNALLOCATED 216.210.236.0/22 6461 AboveNet Communicati
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 /12:37
/13:89 /14:220 /15:385 /16:7069 /17:1356 /18:2418
/19:7061 /20:6018 /21:4747 /22:7105 /23:8940 /24:61460
/25:334 /26:319 /27:271 /28:251 /29:154 /30:182
/31:0 /32:62
Advertised prefixes smaller than registry allocations
-----------------------------------------------------
ASN No of nets Total ann. Description
701 1440 2249 UUNET Technologies, Inc.
1221 1395 1537 Telstra Pty Ltd
3967 873 1056 Exodus Communication
702 710 1037 UUNET Technologies, Inc.
8010 703 718 PublicNet Communications, Inc
7046 601 769 UUNET Technologies, Inc.
7018 563 1089 AT&T
690 489 492 Merit Network
3908 460 683 Supernet, Inc.
4323 438 504 Time Warner Communications, I
4293 432 447 Cable & Wireless USA
1 404 839 BBN Planet
209 403 575 Qwest
1239 403 716 Sprint
2764 362 405 connect.com.au pty ltd
2149 357 481 Performance Systems, Inc.
852 355 542 Telus Advanced Communications
705 330 420 UUNET Technologies, Inc.
703 324 394 UUNET Technologies, Inc.
4151 321 366 USDA
Number of /24s announced per /8 block (Global)
----------------------------------------------
4:5 9:1 12:422 13:10 15:1 17:5
20:1 24:850 25:1 26:1 32:74 38:13
43:2 44:1 47:2 52:1 53:9 57:12
61:123 62:154 63:1907 64:1504 65:911 66:714
67:5 80:107 128:61 129:109 130:23 131:42
132:13 133:2 134:134 135:8 136:119 137:99
138:146 139:47 140:173 141:58 142:66 143:42
144:148 145:11 146:203 147:133 148:182 149:85
150:43 151:191 152:383 153:67 154:8 155:84
156:92 157:108 158:69 159:70 160:46 161:51
162:77 163:128 164:128 165:121 166:205 167:161
168:119 169:46 170:296 171:2 192:5376 193:2037
194:2065 195:859 196:465 198:3740 199:3439 200:2373
201:1 202:2867 203:4569 204:3356 205:2141 206:2763
207:2637 208:2971 209:2964 210:528 211:149 212:938
213:538 214:9 215:16 216:2990 217:428 218:6
End of report
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