Offline ham Lookup

Offline ham Lookup puts the FCC and ISED (Canada) amateur radio license databases on your phone, so you can look up any callsign without a signal. Built for hams in the field, on Field Day, on the road or in the backcountry.

LOOK UP ANYONE
- Search by callsign, name, or ZIP / postal code
- Name, town, state or province, and grid square for every operator
- Star favorites and add your own callsigns, including DX stations outside the US and Canada
- About 893,000 operators.

SEE THEM ON A MAP
- A real offline map of North America, bundled in the app. No downloads, no signal needed
- Optional Maidenhead grid square overlay
- Dark mode

DISTANCE AND BEARING
- Set your location with GPS, a grid square, or latitude and longitude
- Distance and compass bearing to any callsign, with a live compass

HF PROPAGATION PREDICTION (new)
- Estimate band conditions between two grid squares or callsigns, hour by hour
- Uses a VOACAP-based engine.
- Runs fully offline. One optional tap on Update Solar Data downloads a sunspot forecast from the Royal Observatory of Belgium, good for about a year


PRIVATE BY DESIGN
- No account, no ads, no analytics, no tracking
- The only internet connections are the optional solar data update and your app store purchase
- Your location never leaves your device

FREE AND ONE-TIME UNLOCK
Callsign search, details, and favorites are free. A single one-time purchase unlocks the map, distance and bearing, grid and lat/lon tools, and HF Prediction. No subscription.

Locations come from the ZIP or postal code on file, so treat a pin as "somewhere in that area," not a home address. Street addresses are not included.

Not affiliated with the FCC or ISED. Data comes from public government records.

Recent changes:
NEW: offline HF Propagation Prediction. VOACAP Estimate which bands are open between two grid squares or callsigns, fully offline (optional Update Solar Data download). Included in the existing one-time unlock. Refreshed FCC and ISED data, October 2026. ability to manually add or edit callsigns