Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4MAZ callsign genealogy
Currently held by Friday, Ethan 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 K4MAZ's current licensee, walking backwards.
- Friday, Ethan AOKgranted 2025-11-21cancelled 2026-05-22
Successor callsigns
Callsigns held now by people who previously held K4MAZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4MAZ, oldest first.
- MAYS, JOSHUA N VA2013-07-23 → cancelled 2025-07-24
- Friday, Ethan A OK2026-05-22 active