Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N9FC callsign genealogy
Currently held by CALVERT, FREDERICK H
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 N9FC's current licensee, walking backwards.
- Hoff, Steven BALgranted 2017-04-24cancelled 2019-05-14
Successor callsigns
Callsigns held now by people who previously held N9FC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N9FC, oldest first.
- CALVERT, FREDERICK H WI1996-09-05 → cancelled 2004-10-10
- Baldwin Jr, John L IN2007-04-10 → cancelled 2019-04-11
- Hoff, Steven B AL2019-05-14 active