Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0WZX callsign genealogy
Currently held by MORRIS, MARK 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 K0WZX's current licensee, walking backwards.
- KILLEN, STEVEN JKSgranted 2022-03-09cancelled 2022-04-15
Successor callsigns
Callsigns held now by people who previously held K0WZX.
- Killen, Steven JKSgranted 2023-05-02
All historical holders
Every license row we've seen with the callsign K0WZX, oldest first.
- MORRIS, MARK A CO2004-07-14 → cancelled 2016-10-13
- Killen, Steven J KS2022-04-15 → cancelled 2023-05-02