Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC9AC callsign genealogy
Currently held by Larson, David F
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 AC9AC's current licensee, walking backwards.
- Larson, David FCAgranted 2007-05-22cancelled 2007-06-12
Successor callsigns
Callsigns held now by people who previously held AC9AC.
- Larson, David FCAgranted 2023-06-24