Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4GDG callsign genealogy
Currently held by Greenwell, Grant D
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 K4GDG's current licensee, walking backwards.
- Greenwell, Grant DFLgranted 2018-09-05cancelled 2019-05-21
Successor callsigns
Callsigns held now by people who previously held K4GDG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4GDG, oldest first.
- CARSON, GEORGE W TN2006-09-08 → cancelled 2018-09-11
- Greenwell, Grant D FL2019-05-21 active