HamRadioCall is an application for Amateur Radio Operators. HamRadioCall maps and displays location and license information for both the user and another ham based on that ham's callsign.

Please be aware that this app can only be used to lookup U.S. base Ham callsigns. The free callsign lookup services available to this app only contain callsigns of U.S. based Ham operators. There are other non-free apps that can lookup international callsigns. If that is your requirement please pay for one of those apps.

The users location can be determined by either GPS (the device's location services) or by using the user's callsign (the address on file for the user with the FCC).

The "other" ham is identified by their callsign. HamRadioCall looks up the other ham's address on file at the FCC and displays that ham's location on a map with the connecting great circle arc. The range and azimuth to the other ham is also calculated and displayed. This can be valuable for antenna aiming and the evaluation of the propagation conditions and the performance of the both ham's equipment and antennas.

HamRadioCall is developed by Roy Watson, N1ZTL. The FCC license data is updated daily and provided courtesy of Josh Dick, W1JDD though an API at his website:

What’s New

Version 1.1.0

- Preparing for new server!
- minor bug fixes

Ratings and Reviews

3.8 out of 5
26 Ratings

26 Ratings

picksname ,

Please update

Please update so this will work on IOS 11. Thanks

PBPiper ,

Please Update

Original Post: "I really like this app, but I can't use it since I updated to IOS 11. I sent an email to ask for an update and heard nothing back."

New Post: I received the update for iOS 11 and all is working well. I updated the rating to 5 stars. Thank you!

Stanford Ham ,

Easy as pi

Love it, love it, love it! So easy to use and appears accurate. Supplies more info than expected, more than necessary actually, but more is better isn't it? Now it will travel with me everywhere. Thanks for such a valuable app.


Roy Watson
3.2 MB

Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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