Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3HQ callsign genealogy
Currently held by Hoffman, Marc R
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 AC3HQ's current licensee, walking backwards.
- Hoffman, Marc RMDgranted 2021-04-02cancelled 2021-05-29
Successor callsigns
Callsigns held now by people who previously held AC3HQ.
- Hoffman, Marc RMDgranted 2021-07-17