Notice: data is being updated, so some fields may be inaccurate.
ASN Owner
DataCenter CERNET-CN
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Network
AS Organization
Country
First Seen
Last Seen
121.251.192.0/20
DataCenter CERNET-CN
China
121.251.192.0/20
DataCenter Shandong Provincial Department of Education,
China
121.251.192.0/20
DataCenter CERNET2 IX Route Servers
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 Compare round-trip latency and packet loss from different locations.
Open PINGโ History opens saved results. Select โRun againโ to start a new test.
Inspect route paths, hop addresses and response times from different locations.
Open Tracerouteโ History opens saved results. Select โRun againโ to start a new test.
Compare DNS records, resolvers and response times across locations.
Open DNSโ History opens saved results. Select โRun againโ 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 MTRโ History opens saved results. Select โRun againโ to start a new test.
Inspect HTTP status, response headers and request timings from different locations.
Open HTTPโ History opens saved results. Select โRun againโ to start a new test.
China, Jiangsu, Nanjing