Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC3MP callsign genealogy
Currently held by Pham, 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 AC3MP's current licensee, walking backwards.
- Pham, Michael LCAgranted 2024-01-30cancelled 2024-02-27
Successor callsigns
Callsigns held now by people who previously held AC3MP.
No current licensee on record previously held this callsign.