Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC1YHF callsign genealogy
Currently held by Guy, Brian 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 KC1YHF's current licensee, walking backwards.
- Guy, Brian AVTgranted 2025-01-28cancelled 2025-02-15
Successor callsigns
Callsigns held now by people who previously held KC1YHF.
No current licensee on record previously held this callsign.