Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3Z callsign genealogy
Currently held by Brandt Sr, Ronald S
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 AC3Z's current licensee, walking backwards.
- Casto, LynSDgranted 2015-05-21cancelled 2015-06-19
Successor callsigns
Callsigns held now by people who previously held AC3Z.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC3Z, oldest first.
- Brandt Sr, Ronald S PA2003-05-28 → cancelled 2015-05-29
- Casto, Lyn FL2025-05-14 active