Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4SMJ callsign genealogy
Currently held by JOHNSON, MARGIE V
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 N4SMJ's current licensee, walking backwards.
- Martin Jr, Steven ANCgranted 2020-08-24cancelled 2020-12-22
Successor callsigns
Callsigns held now by people who previously held N4SMJ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4SMJ, oldest first.
- JOHNSON, MARGIE V FL2008-03-12 → cancelled 2020-03-12
- Martin Jr, Steven A NC2020-12-22 active