Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM4MXR callsign genealogy
Currently held by Deyo Jr, Robert E
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 KM4MXR's current licensee, walking backwards.
- Deyo Jr, Robert ETNgranted 2015-04-16cancelled 2015-08-27
Successor callsigns
Callsigns held now by people who previously held KM4MXR.
- Deyo Jr, Robert ETNgranted 2026-01-27