Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4FL callsign genealogy
Currently held by COLLIER D-STAR GROUP
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 AC4FL's current licensee, walking backwards.
- KK4OBUcancelledCOLLIER D-STAR GROUPFLgranted 2013-01-31cancelled 2013-02-26
Successor callsigns
Callsigns held now by people who previously held AC4FL.
- CRAMPTON, RAYMOND JVAgranted 2012-02-03cancelled 2023-06-02