Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4YHZ callsign genealogy
Currently held by ROBERSON, MARY C
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 KF4YHZ'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 KF4YHZ.
- ROBERSON, MARY CFLgranted 1999-01-03cancelled 2010-05-07