Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KX4PX callsign genealogy
Currently held by HAMM, MICHAEL W
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 KX4PX's current licensee, walking backwards.
- HAMM, MICHAEL WNCgranted 2019-01-30cancelled 2019-02-11
Successor callsigns
Callsigns held now by people who previously held KX4PX.
No current licensee on record previously held this callsign.