Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4FXB callsign genealogy
Currently held by Sandifer, William
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 K4FXB's current licensee, walking backwards.
- Sandifer, William EFLgranted 2023-05-02cancelled 2023-06-22
Successor callsigns
Callsigns held now by people who previously held K4FXB.
- GOODMAN, PHILIP IGAgranted 1996-07-31cancelled 2003-08-23