Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KD4SGC callsign genealogy
Currently held by Stevenson, Mari Ann M
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 KD4SGC's current licensee, walking backwards.
- Stevenson, Mari Ann MVAgranted 2019-10-30cancelled 2020-07-24
Successor callsigns
Callsigns held now by people who previously held KD4SGC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KD4SGC, oldest first.
- ADAMS, KEVIN L GA2003-02-21 → cancelled 2015-02-24
- Stevenson, Mari Ann M VA2020-07-24 active