Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4DE callsign genealogy
Currently held by Johnston, David T
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 KY4DE's current licensee, walking backwards.
- Johnston, David TALgranted 2020-10-02cancelled 2020-12-10
Successor callsigns
Callsigns held now by people who previously held KY4DE.
- Johnston, David TALgranted 2021-04-24