73 by N0AGI

N0AGI LLC

In-app purchases

About this app

73 is the fastest way for amateur radio operators to look up any FCC-licensed call sign — right from your pocket.

Whether you're at a contest, a club meeting, or just curious about a call sign you heard on the air, 73 gives you the full FCC record in seconds: licensee name, address, license class, status, expiration date, and previous call signs.

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SEARCH & FILTER
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- Search by call sign or operator name
- Filter by license class (Technician, General, Amateur Extra)
- Filter by status (Active, Expired, Cancelled, Terminated)
- Filter by state and city
- Results paginate smoothly — load more with a tap
- Recent searches remembered for quick re-lookup

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FAVORITES & HISTORY
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- Save any call sign to your Favorites list
- Favorites stored locally — works offline
- Swipe to remove
- Filter and search your saved list
- Lookup history with activity stats

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CALL SIGN DETAIL
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- Full FCC record: name, address, class, status, dates
- QR code generation — share a call sign with a scan
- Previous call sign history
- Web Lookup link for deeper detail
- One-tap share sheet

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THEMES
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14 hand-crafted themes to match your shack:
Dark: Midnight, Solar, Matrix, Neon, Gaming, Ocean, Forest, Sandstone, Arctic, Spectrum
Light: Daylight, Sand, Sage, Plum

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PRIVACY FIRST
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No account required. No ads. No tracking.
Your favorites and search history never leave your device.
Data comes directly from the FCC Universal Licensing System.

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UNLOCK
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73 includes a 20-day free trial with full access.
After the trial, a one-time $2.99 purchase via Google Play unlocks the app forever — no subscription, no hidden fees.

73 de N0AGI

What’s new

Fixed a bug where rotating your phone could disrupt the screen — 73 now stays in portrait.