Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA5MC callsign genealogy
Currently held by Colonna, Michael A
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 AA5MC's current licensee, walking backwards.
- Colonna, Michael ATXgranted 2007-09-04cancelled 2015-03-07
Successor callsigns
Callsigns held now by people who previously held AA5MC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA5MC, oldest first.
- MARSHALL, SAM W TX1999-04-26 → cancelled 2011-04-27
- Colonna, Michael A TX2025-01-16 active