About WhatIsMyIP.bz

A free IP lookup tool. Shows your public IP (v4 and v6), GeoIP2- based geolocation (approximate city, country, ASN, ISP), reverse DNS, and lets you look up other IPs. JSON API available.

WhatIsMyIP.bz is operated by Dynamic Foundries, a French SASU registered in Paris (RCS Paris 102 801 206). The portfolio includes two revenue products (FileSendX, ViewPeek) and a network of free utility tools.

Who it's for: developers debugging network issues, sysadmins verifying firewall rules, anyone curious about their public IP.

Where to find more:

Last updated: 2026-05-18.