Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC5C callsign genealogy
Currently held by Winkeller Jr, Herbert B
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 AC5C's current licensee, walking backwards.
- Winkeller Jr, Herbert BTXgranted 2007-10-24cancelled 2008-08-22
Successor callsigns
Callsigns held now by people who previously held AC5C.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC5C, oldest first.
- SMITH, ALTON R OK1998-05-18 → cancelled 2005-06-08
- Winkeller Jr, Herbert B TX2018-10-31 active