Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4BGS callsign genealogy
Currently held by Sadler, Brian G
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 N4BGS's current licensee, walking backwards.
- Sadler, Brian GGAgranted 2016-03-17cancelled 2018-01-06
Successor callsigns
Callsigns held now by people who previously held N4BGS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4BGS, oldest first.
- HAMEROFF, SAM FL1990-06-12 → cancelled 2002-06-13
- Sadler, Brian G GA2018-01-06 active