Whois Lookup
Look up registration and ownership information for any IP address or domain name. Find the ISP, ASN, country, and geographic location associated with an IP, or registrar details for a domain.
Whois Lookup
Enter an IP address or domain name above.
What is Whois?
Whois is a query protocol used to look up registration information for internet resources including domain names and IP address blocks. For IP addresses, Whois reveals the organisation that has been assigned that address range (the ISP or hosting provider), their country, and their ASN (Autonomous System Number).
For domain names, Whois can show the registrar, registration date, expiry date, and — unless privacy protection is enabled — the registrant's contact details.