Confidence: Medium · Source: FCC ULS · As of 2026-09-14
NA4BJ callsign genealogy
Currently held by Provenzano, Michael B
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 NA4BJ's current licensee, walking backwards.
- Provenzano, Michael BTNgranted 2026-02-19cancelled 2026-04-06
Successor callsigns
Callsigns held now by people who previously held NA4BJ.
No current licensee on record previously held this callsign.