Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK4USF callsign genealogy
Currently held by DUNSON, JOHN 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 KK4USF's current licensee, walking backwards.
- DUNSON, JOHN RGAgranted 2012-03-05cancelled 2012-11-24
Successor callsigns
Callsigns held now by people who previously held KK4USF.
No current licensee on record previously held this callsign.