Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG7DX callsign genealogy
Currently held by HARBAUGH JR, JOHN S
The FCC publishes a previous_call_sign on
every amateur license — a self-link to the licensee's prior callsign.
Following those links produces the chain below.
Previous callsigns
Older callsigns held by AG7DX's current licensee, walking backwards.
- Harbaugh Jr, John SWAgranted 2015-10-23cancelled 2015-11-14
Successor callsigns
Callsigns held now by people who previously held AG7DX.
No current licensee on record previously held this callsign.