Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4CR callsign genealogy
Currently held by Mast, Gary 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 KY4CR's current licensee, walking backwards.
- Mast, Gary DKYgranted 2016-04-15cancelled 2020-11-20
Successor callsigns
Callsigns held now by people who previously held KY4CR.
No current licensee on record previously held this callsign.