Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4WQ callsign genealogy
Currently held by McMahon, Michael T
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 KX4WQ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KX4WQ.
No current licensee on record previously held this callsign.