Confidence: Medium · Source: FCC ULS · As of 2026-09-10
AC9DA callsign genealogy
Currently held by Thompson, Tommy L
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 AC9DA's current licensee, walking backwards.
- Thompson, Tommy LILgranted 2012-05-01cancelled 2012-08-20
Successor callsigns
Callsigns held now by people who previously held AC9DA.
No current licensee on record previously held this callsign.