Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4SFX callsign genealogy
Currently held by CORT Jr, SAMUEL F
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 N4SFX's current licensee, walking backwards.
- CORT JR, SAMUEL FGAgranted 2023-10-31cancelled 2023-12-05
Successor callsigns
Callsigns held now by people who previously held N4SFX.
- CORT Jr, SAMUEL FGAgranted 2024-03-15cancelled 2024-04-05
All historical holders
Every license row we've seen with the callsign N4SFX, oldest first.
- WHITMAN, THOMAS E GA1988-03-08 → cancelled 2000-03-09
- CORT Jr, SAMUEL F GA2023-12-05 → cancelled 2024-03-15