Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD4BB callsign genealogy
Currently held by Brown, Robert J
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 AD4BB's current licensee, walking backwards.
- Brown, Robert JGAgranted 2021-02-24cancelled 2021-07-02
Successor callsigns
Callsigns held now by people who previously held AD4BB.
No current licensee on record previously held this callsign.