Etymology. QRZ, the name of the website, is the "Q" code for "Who is calling me?" and corresponds to the site's purpose of assisting amateur radio operators with the lookup of ham radio call signs from every country in the world.

Signing up for a new account is free and easy. If you're a ham, we'll need your callsign and valid email address. Non-hams can also sign up with a username instead of a callsign. You MAY NOT register someone else.

The app interfaces the popular QRZ resource and allows for quick access via icons on the bottom of the screen. - Search for a call sign and receive name, location information including grid, license level, license expiration, etc. - Select more icons to preview a photo, bio page, recent logbook entry (if used), etc.