Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN4MTZ callsign genealogy
Currently held by Merle, Frederic M
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 KN4MTZ's current licensee, walking backwards.
- Merle, Frederic MFLgranted 2017-11-09cancelled 2017-12-27
Successor callsigns
Callsigns held now by people who previously held KN4MTZ.
No current licensee on record previously held this callsign.