Free IP WHOIS Lookup

Both tools look up information about an IP address, but they return entirely different types of data:

• IP WHOIS returns registration and ownership data, who the IP block is registered to, the ISP, ASN, abuse contact, and the RIR that manages it. This comes from official registry records.
• IP Geolocation returns physical location estimates, country, region, city, postal code, latitude/longitude, and accuracy radius. This is derived from routing data and network signals, not registry records.
• WHOIS tells you who owns the IP. Geolocation tells you where it is being used.
• An IP can be registered to an organisation in one country but geolocate to a server in another - the two do not always match.

Use IP WHOIS Lookup when you need ownership, ISP, or abuse contact information. Use IP Geolocation Lookup when you need the physical or geographic location of an IP address.

Yes. WhoisFreaks offers a Bulk IP WHOIS Lookup tool that lets you run WHOIS lookups on multiple IP addresses at once, returning the owner, ISP, ASN, network range, and abuse contact for each IP in a single batch. For larger volumes, the IP WHOIS API supports bulk processing at scale.

Enter an IP address above and select lookup to see the owner, ASN, RIR, and abuse contact. For a full walkthrough of the tool, the API, and the bulk method, plus how to read every field, see the guide on how to perform an IP WHOIS lookup