73 by N0AGI
Amateur Radio Callsign Lookup
Only for iPhone
Free · In‑App Purchases
iPhone
73 is the fastest way to look up any FCC-licensed amateur radio call sign — right from your pocket.
SEARCH & FILTER
- Search by call sign or operator name
- Filter by license class, status, state, and city
- Full FCC record: name, city/state, class, status, dates, previous call signs, FRN
- Recent searches remembered for quick re-lookup
FAVORITES
- Save any call sign to your Favorites list
- Stored locally — works offline
- Filter, search, and multi-select your saved list
CALL SIGN DETAIL
- QR code for quick sharing
- One-tap share sheet
- Direct link to call.n0agi.com record
THEMES
14 hand-crafted themes to match your shack:
Dark: Midnight, Solar, Matrix, Neon, Gaming, Ocean, Forest, Sandstone, Arctic, Spectrum
Light: Daylight, Sand, Sage, Plum
PRIVACY FIRST
No account. No ads. No tracking. Your data never leaves your device.
Powered by the FCC Universal Licensing System.
UNLOCK
20-day free trial with full access.
One-time $2.99 — no subscription, ever.
73 de N0AGI
Ratings & Reviews
Security: trial timer hardened against device-clock rollback.
Housekeeping: internal diagnostic improvements.
The developer, N0AGI LLC, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- N0AGI LLC
- Size
- 4 MB
- Category
- Utilities
- Compatibility
Requires iOS 16.0 or later.
- iPhone
Requires iOS 16.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Unlock 73 by N0AGI $2.99
- Copyright
- © 2026 N0AGI LLC