Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AC9AU callsign genealogy
Currently held by TRUEB, DAVID A
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 AC9AU's current licensee, walking backwards.
- TRUEB, DAVID AINgranted 2010-05-11cancelled 2011-11-30
Successor callsigns
Callsigns held now by people who previously held AC9AU.
No current licensee on record previously held this callsign.