Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KX4QU callsign genealogy
Currently held by O Rourke, Joel F
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 KX4QU's current licensee, walking backwards.
- O Rourke, Joel FFLgranted 2018-10-17cancelled 2019-03-20
Successor callsigns
Callsigns held now by people who previously held KX4QU.
No current licensee on record previously held this callsign.