Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KR4KFB callsign genealogy
Currently held by Kloss, Jason
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 KR4KFB's current licensee, walking backwards.
- Kloss, JasonFLgranted 2026-02-03cancelled 2026-03-02
Successor callsigns
Callsigns held now by people who previously held KR4KFB.
- Kloss, JasonFLgranted 2026-03-21