Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3OC callsign genealogy
Currently held by Martin, Michael 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 AC3OC's current licensee, walking backwards.
- Martin, Michael LPAgranted 2024-10-24cancelled 2025-02-20
Successor callsigns
Callsigns held now by people who previously held AC3OC.
No current licensee on record previously held this callsign.