Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N0FSB callsign genealogy
Currently held by Demarest, Christopher 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 N0FSB's current licensee, walking backwards.
- Demarest, Christopher AFLgranted 2015-04-23cancelled 2024-09-06
Successor callsigns
Callsigns held now by people who previously held N0FSB.
- HULDEEN, JAY RWYgranted 2017-03-21
All historical holders
Every license row we've seen with the callsign N0FSB, oldest first.
- HULDEEN, JAY R IA2015-01-28 → cancelled 2017-03-21
- Demarest, Christopher A FL2024-09-06 active