Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KM1MTN callsign genealogy
Currently held by Matsen, Martin K
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 KM1MTN's current licensee, walking backwards.
- Matsen, Martin KMTgranted 2015-02-06cancelled 2018-03-23
Successor callsigns
Callsigns held now by people who previously held KM1MTN.
No current licensee on record previously held this callsign.