Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4MZZ callsign genealogy
Currently held by Maseda, Michael
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 KO4MZZ's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KO4MZZ.
- Maseda, MichaelFLgranted 2021-03-13cancelled 2021-04-30