Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4DX callsign genealogy
Currently held by Salter, Hughston G
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 AC4DX's current licensee, walking backwards.
- Salter, Hughston GFLgranted 2022-06-28cancelled 2023-08-08
Successor callsigns
Callsigns held now by people who previously held AC4DX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC4DX, oldest first.
- BHIRDO, KAREN K FL2010-12-17 → cancelled 2023-03-13
- Salter, Hughston G FL2023-08-08 active