Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KY4MDC callsign genealogy
Currently held by Cooper, Matthew 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 KY4MDC's current licensee, walking backwards.
- Cooper, Matthew DKYgranted 2023-11-14cancelled 2023-12-02
Successor callsigns
Callsigns held now by people who previously held KY4MDC.
No current licensee on record previously held this callsign.