Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WG4K callsign genealogy
Currently held by PENEZIC, DAVID
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 WG4K's current licensee, walking backwards.
- PENEZIC, DAVIDFLgranted 2007-08-28cancelled 2009-09-22
Successor callsigns
Callsigns held now by people who previously held WG4K.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WG4K, oldest first.
- WALWORTH, JIMMY H FL1997-09-03 → cancelled 2009-09-04
- PENEZIC, DAVID FL2019-08-15 active