Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4AXL callsign genealogy
Currently held by SHOWALTER, OWEN B
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 K4AXL's current licensee, walking backwards.
- SHOWALTER, GREGORY DSCgranted 2014-10-16cancelled 2018-08-21
Successor callsigns
Callsigns held now by people who previously held K4AXL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4AXL, oldest first.
- SHOWALTER, OWEN B VA2006-06-22 → cancelled 2018-08-02
- SHOWALTER, GREGORY D SC2018-08-21 active