Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BD callsign genealogy
Currently held by De Ryder Jr, Leonard J
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 K4BD's current licensee, walking backwards.
- DeRyder Sr, Joseph AVAgranted 2023-01-26cancelled 2024-07-26
Successor callsigns
Callsigns held now by people who previously held K4BD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4BD, oldest first.
- De Ryder Jr, Leonard J VA2016-08-31 → cancelled 2023-04-03
- DeRyder Sr, Joseph A VA2024-07-26 active