Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MDR callsign genealogy
Currently held by MARTIN, REZON C
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 K4MDR's current licensee, walking backwards.
- FOOTE JR, KENNETH DGAgranted 2017-07-11cancelled 2019-02-20
Successor callsigns
Callsigns held now by people who previously held K4MDR.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MDR, oldest first.
- MARTIN, REZON C GA2006-11-30 → cancelled 2018-12-01
- FOOTE JR, KENNETH D GA2019-02-20 active