Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4AC callsign genealogy
Currently held by Cox, Adam C
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 AC4AC's current licensee, walking backwards.
- Cox, Adam CGAgranted 2013-01-16cancelled 2016-06-21
Successor callsigns
Callsigns held now by people who previously held AC4AC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC4AC, oldest first.
- Owen, Henry R VA2003-10-22 → cancelled 2015-10-23
- Cox, Adam C OH2026-06-11 active