Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3OJ callsign genealogy
Currently held by Vaughn, Christopher D
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 AC3OJ's current licensee, walking backwards.
- Vaughn, Christopher DPAgranted 2025-02-22cancelled 2025-03-24
Successor callsigns
Callsigns held now by people who previously held AC3OJ.
- Vaughn, Christopher DPAgranted 2025-05-03