Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4YEZ callsign genealogy
Currently held by Hays, Nicholas A
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 KF4YEZ's current licensee, walking backwards.
- HAYS, NICHOLAS AMAgranted 2021-10-13cancelled 2023-11-10
Successor callsigns
Callsigns held now by people who previously held KF4YEZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4YEZ, oldest first.
- Hays, Nicholas A KY1999-06-11 → cancelled 2010-05-04
- HAYS, NICHOLAS A MA2023-11-10 active