Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OUX callsign genealogy
Currently held by Heroux Jr, Arthur W
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 K4OUX's current licensee, walking backwards.
- Heroux Jr, Arthur WSCgranted 2024-01-17cancelled 2024-03-02
Successor callsigns
Callsigns held now by people who previously held K4OUX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OUX, oldest first.
- KIRKPATRICK JR, LUCILIUS M TN2003-09-09 → cancelled 2015-12-08
- Heroux Jr, Arthur W SC2024-03-02 active