Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4MRT callsign genealogy
Currently held by BURT, MICHAEL F
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 K4MRT's current licensee, walking backwards.
- KJ4QHcancelledBURT, MICHAEL F.cancelled 1997-09-17
Successor callsigns
Callsigns held now by people who previously held K4MRT.
No current licensee on record previously held this callsign.