Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KY4YI callsign genealogy
Currently held by Finn, John
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 KY4YI's current licensee, walking backwards.
- Finn, JohnNCgranted 2021-02-10cancelled 2023-05-26
Successor callsigns
Callsigns held now by people who previously held KY4YI.
No current licensee on record previously held this callsign.