Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4MA callsign genealogy
Currently held by Matsuo, Mitsuhiro
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 AA4MA's current licensee, walking backwards.
- Matsuo, MitsuhiroTNgranted 2001-05-24cancelled 2001-10-12
Successor callsigns
Callsigns held now by people who previously held AA4MA.
No current licensee on record previously held this callsign.