Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7B callsign genealogy
Currently held by Gyuro, Donald J
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 AC7B's current licensee, walking backwards.
- Gyuro, Donald JAZgranted 2014-03-11cancelled 2015-12-04
Successor callsigns
Callsigns held now by people who previously held AC7B.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AC7B, oldest first.
- FOGELSONGER, TAMLYN R WA2005-08-29 → cancelled 2013-11-15
- Gyuro, Donald J AZ2025-11-25 active