Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KF4LHF callsign genealogy
Currently held by WARING, MARK 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 KF4LHF's current licensee, walking backwards.
- KF4KXHno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KF4LHF.
- WARING, MARK RFLgranted 2021-03-03