Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4BT callsign genealogy
Currently held by Turner, William M
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 N4BT's current licensee, walking backwards.
- Julian, Deborah JFLgranted 2021-04-12cancelled 2022-08-05
Successor callsigns
Callsigns held now by people who previously held N4BT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4BT, oldest first.
- Turner, William M FL2017-04-21 → cancelled 2020-08-17
- Julian, Deborah J GA2022-08-05 active