Confidence: Medium · Source: FCC ULS · As of 2026-09-10
K4EXT callsign genealogy
Currently held by Beam, Gary L
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 K4EXT's current licensee, walking backwards.
- Beam, Justin LTNgranted 2022-09-21cancelled 2022-12-02
Successor callsigns
Callsigns held now by people who previously held K4EXT.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4EXT, oldest first.
- Beam, Gary L TN2013-03-08 → cancelled 2020-10-23
- Beam, Justin L TN2022-12-02 active