Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N0BSF callsign genealogy
Currently held by Brown, Stephen F
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 N0BSF's current licensee, walking backwards.
- Brown, Stephen FCOgranted 2014-02-10cancelled 2020-01-24
Successor callsigns
Callsigns held now by people who previously held N0BSF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N0BSF, oldest first.
- WEIDEMAN, ROBERT W MN1991-12-10 → cancelled 2003-12-11
- Brown, Stephen F CO2020-01-24 active