Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MZ callsign genealogy
Currently held by MORGAN, DAVID J
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 K4MZ's current licensee, walking backwards.
- MORGAN, DAVID JVAgranted 2000-08-08cancelled 2006-03-07
Successor callsigns
Callsigns held now by people who previously held K4MZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MZ, oldest first.
- CHRISTIE, MICHAEL FL1997-03-27 → cancelled 2003-06-07
- MORGAN, DAVID J VA2026-02-19 active