Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FSD callsign genealogy
Currently held by Hardy, Brian C
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 K0FSD's current licensee, walking backwards.
- Hardy, Brian CSDgranted 2022-09-20cancelled 2024-08-13
Successor callsigns
Callsigns held now by people who previously held K0FSD.
- Hardy, Brian CSDgranted 2022-09-20cancelled 2024-08-13
All historical holders
Every license row we've seen with the callsign K0FSD, oldest first.
- Hardy, Brian C SD2021-06-04 → cancelled 2022-09-20
- Hardy, Brian C SD2024-08-13 active