Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4U callsign genealogy
Currently held by HENRY, SAMUEL 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 AC4U's current licensee, walking backwards.
- JEFFERSON, ROGER TNCgranted 1993-01-26cancelled 2000-05-09
Successor callsigns
Callsigns held now by people who previously held AC4U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC4U, oldest first.
- HENRY, SAMUEL C AL1988-03-22 → cancelled 2000-03-23
- JEFFERSON, ROGER T NC2020-03-03 active