Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA5MZ callsign genealogy
Currently held by REEDER, WILLIAM N
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 AA5MZ's current licensee, walking backwards.
- Zimmer, MichaelCOgranted 2012-01-23cancelled 2012-02-11
Successor callsigns
Callsigns held now by people who previously held AA5MZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA5MZ, oldest first.
- REEDER, WILLIAM N OK1989-08-01 → cancelled 2001-08-02
- Zimmer, Michael CO2012-02-11 → cancelled 2024-02-13