Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4WFF callsign genealogy
Currently held by FULLGRAF, CHARLES S
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 KF4WFF'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 KF4WFF.
- W4FLOactiveFORT LOUDON OPERATING GROUPTNgranted 2018-02-02