What is WHOIS?

WHOIS is a publicly accessible protocol and database used to look up registration information about internet resources such as IP addresses, AS numbers, and domain names.

Typical Information Provided:

• Organization name
• Contact details (admin, technical)
• IP address allocation or domain ownership
• Status and registration dates

WHOIS is essential for network troubleshooting, abuse reporting, and verifying resource ownership. Data is maintained by Regional Internet Registries (RIRs) and domain registrars.