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Network
AS Organization
Country
First Seen
Last Seen
121.192.40.0/22
DataCenter CERNET-CN
China
121.192.40.0/22
DataCenter CERNET2 IX at Zhejiang University
China
Network
Registered since
Verified / ended
No verified organization registration records
The registered organization can differ from the ASN operator. Current records show the latest verification; past records show when they ended. Unknown start dates are shown as --.
Registry
Country
First Seen
Last Seen
--
Location
Time
--
Latest 20 per type IP PING Traceroute DNS MTR HTTP Explore 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.
China, Shanghai, Shanghai