Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4ZV callsign genealogy
Currently held by GWATHNEY, CHARLES A
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 AD4ZV's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AD4ZV.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AD4ZV, oldest first.
- GWATHNEY, CHARLES A TN1995-08-31 → cancelled 2006-08-29
- Gwathney, Ronald G TN2026-06-26 active