Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4JJC callsign genealogy
Currently held by Carroll, John 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 KY4JJC's current licensee, walking backwards.
- Carroll, John JKYgranted 2024-03-07cancelled 2024-03-26
Successor callsigns
Callsigns held now by people who previously held KY4JJC.
No current licensee on record previously held this callsign.