Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4BX callsign genealogy
Currently held by FERRARA, JON A
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 AC4BX's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AC4BX.
No current licensee on record previously held this callsign.