Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4FXO callsign genealogy
Currently held by Hamel, Justin D
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 KM4FXO's current licensee, walking backwards.
- Hamel, Justin DFLgranted 2013-11-18cancelled 2014-11-14
Successor callsigns
Callsigns held now by people who previously held KM4FXO.
- Hamel, Justin DNCgranted 2024-09-04