Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4FSD callsign genealogy
Currently held by Phillips, Brian D
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 KF4FSD's current licensee, walking backwards.
- Phillips, Brian DARgranted 2016-07-13cancelled 2022-01-21
Successor callsigns
Callsigns held now by people who previously held KF4FSD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KF4FSD, oldest first.
- PHILLIPS, BRIAN D FL1996-01-30 → cancelled 2008-01-15
- Phillips, Brian D AR2022-01-21 active