Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FSG callsign genealogy
Currently held by Florida Simulcast Group Inc
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 K4FSG's current licensee, walking backwards.
- KO4QZOcancelledFlorida Simulcast Group IncFLgranted 2021-06-03cancelled 2021-09-17
Successor callsigns
Callsigns held now by people who previously held K4FSG.
No current licensee on record previously held this callsign.