Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4JAX callsign genealogy
Currently held by NE Florida DSTAR
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 KR4JAX's current licensee, walking backwards.
- KJ4WRTcancelledFlagler ARES DSTARFLgranted 2010-08-02cancelled 2011-01-28
Successor callsigns
Callsigns held now by people who previously held KR4JAX.
No current licensee on record previously held this callsign.