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ASN History
Network
AS Organization
Country
First Seen
Last Seen
143.20.221.0/24
DataCenterCore Network Technologies Limited
Hong Kong SAR China
2026-08-20 15:17
2026-08-23 13:59
143.20.221.0/24
DataCenterRIPE NCC ASN block
United Kingdom
2025-08-25 17:53
2026-01-22 20:13
143.20.221.0/24
DataCenterZERODESK-LTD
United Kingdom
2025-07-14 16:32
2025-08-21 14:24
143.20.221.0/24
DataCenterIPXO LLC
United States
2025-07-02 21:45
2025-07-14 13:00
Organization registration history
Network
First seen
Last active
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.
France,Île-de-France,Paris