Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4UYE callsign genealogy
Currently held by CROOK, MATTHEW R
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 KF4UYE's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF4UYE.
- Crook Sr, Matthew RSCgranted 2025-11-19