Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KA4BDT callsign genealogy
Currently held by Turner, Billy D
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 KA4BDT's current licensee, walking backwards.
- Turner, Billy DALgranted 2020-08-24cancelled 2021-10-02
Successor callsigns
Callsigns held now by people who previously held KA4BDT.
- Turner, Billy DALgranted 2023-07-25
All historical holders
Every license row we've seen with the callsign KA4BDT, oldest first.
- ROBINSON, HAROLD M FL1993-02-23 → cancelled 2005-02-24
- Turner, Billy D AL2021-10-02 → cancelled 2023-07-25