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IP WHOIS Lookup

Find the registrant and network details behind an IP block.

WHOIS records describe who an IP address block is registered to. Lookups are performed over TCP port 43 against the correct regional registry, discovered automatically from IANA data.

The correct regional registry is discovered automatically from IANA data.

Privacy: WHOIS records are public data maintained by the regional internet registries.

Related tools

IP LookupFull intelligence report for any IPv4 or IPv6 address.ASN WHOIS LookupLook up the owner and details of an Autonomous System Number.

Frequently asked questions

Can WHOIS reveal a person?

For many IP blocks WHOIS shows the network operator (usually an ISP or hosting provider), not an individual.