Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KG4R callsign genealogy
Currently held by SCHMIDT, THOMAS 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 KG4R's current licensee, walking backwards.
- SCHMIDT, THOMAS MFLgranted 2022-11-30cancelled 2026-02-27
Successor callsigns
Callsigns held now by people who previously held KG4R.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KG4R, oldest first.
- VANDERLAAN, WILLIAM VA2003-12-04 → cancelled 2016-02-23
- STEINER, MICHAEL L NC2016-03-12 → cancelled 2024-02-06
- SCHMIDT, THOMAS M FL2026-02-27 active