Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GDF callsign genealogy
Currently held by WALLS, GERALD F
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 K4GDF's current licensee, walking backwards.
- Walls Jr, Gerald FFLgranted 2018-03-14cancelled 2018-04-03
Successor callsigns
Callsigns held now by people who previously held K4GDF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4GDF, oldest first.
- WALLS, GERALD F FL2003-05-20 → cancelled 2015-08-18
- Walls Jr, Gerald F FL2018-04-03 active