What is the difference between Domain WHOIS and IP WHOIS?

Domain WHOIS shows who registered a website name. IP WHOIS shows which organization owns the physical network infrastructure or IP block.

Why would I use IP WHOIS?

It is essential for cybersecurity professionals investigating malicious IPs, reporting abuse, or analyzing network allocations.

A Regional Internet Registry manages the allocation and registration of Internet number resources (IP addresses and ASNs) within a specific region of the world.

IP WHOIS Lookup

Find registration details and contact information for the owner of an IP address using RDAP/WHOIS databases.

WHOIS Results

What is the IP WHOIS?

The IP WHOIS tool queries Regional Internet Registries (like ARIN, RIPE, APNIC) to retrieve detailed ownership and registration information for any IP address or ASN.

How to use it

Input the target IP address.
Click "Lookup WHOIS".
Read through the JSON output for registrant organization, network blocks, and contact emails.

IP WHOIS Lookup

WHOIS Results

What is the IP WHOIS?

How to use it

Frequently Asked Questions