Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4DMJ callsign genealogy
Currently held by MATTHEWS JR, DAVID
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 K4DMJ's current licensee, walking backwards.
- MATTHEWS JR, DAVIDNCgranted 2009-04-24cancelled 2010-10-19
Successor callsigns
Callsigns held now by people who previously held K4DMJ.
No current licensee on record previously held this callsign.