Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4BOX callsign genealogy
Currently held by Dubin, Garth A
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 K4BOX's current licensee, walking backwards.
- Dubin, Garth AVAgranted 2015-09-25cancelled 2019-06-07
Successor callsigns
Callsigns held now by people who previously held K4BOX.
- Morton, Michael SFLgranted 2017-04-04cancelled 2019-02-26
All historical holders
Every license row we've seen with the callsign K4BOX, oldest first.
- Morton, Michael S FL2014-10-07 → cancelled 2017-04-04
- Dubin, Garth A VA2019-06-07 active