Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4UG callsign genealogy
Currently held by Shirley, Curtis 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 KX4UG's current licensee, walking backwards.
- Shirley, Curtis AFLgranted 2019-05-23cancelled 2019-09-10
Successor callsigns
Callsigns held now by people who previously held KX4UG.
- Shirley, Curtis AFLgranted 2020-11-10