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ASN History
Network
AS Organization
Country
First Seen
Last Seen
158.203.0.0/16
DataCenterNational Institute of Informatics
Japan
2017-01-01 08:37
2026-10-22 18:49
158.203.0.0/16
DataCenter--
/ --
2022-03-07 15:24
2022-03-09 13:50
158.203.0.0/16
DataCenterIbaraki Prefectural Government
Japan
2003-09-25 11:16
2012-01-30 12:51
158.203.0.0/16
DataCenterJapan Science and Technology Agency
Japan
2003-01-02 20:54
2003-01-11 15:17
158.203.0.0/16
DataCenterWIDE Project
Japan
2002-04-29 23:39
2002-04-30 15:11
158.203.0.0/16
ISPAvailo Networks AB
Sweden
2002-04-10 02:11
2002-04-17 04:08
Organization registration history
Network
Registered since
Verified / ended
No verified organization registration records
Registration History
Registry
Country
First Seen
Last Seen
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IP Location History
Location
Time
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Recent queries
Latest 20 per typeExplore recently queried IP addresses.
Open IP→Compare round-trip latency and packet loss from different locations.
Open PING→History opens saved results. Select “Run again” to start a new test.
Inspect route paths, hop addresses and response times from different locations.
Open Traceroute→History opens saved results. Select “Run again” to start a new test.
Compare DNS records, resolvers and response times across locations.
Open DNS→History opens saved results. Select “Run again” to start a new test.
Combine route tracing with repeated probes to inspect hop latency and loss. Intermediate hop rate limiting does not establish destination packet loss.
Open MTR→History opens saved results. Select “Run again” to start a new test.
Inspect HTTP status, response headers and request timings from different locations.
Open HTTP→History opens saved results. Select “Run again” to start a new test.
