Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K2MM callsign genealogy
Currently held by ZAPISEK, JOHN
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 K2MM's current licensee, walking backwards.
- Gardner, Michael JAZgranted 2022-11-30cancelled 2023-02-22
Successor callsigns
Callsigns held now by people who previously held K2MM.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K2MM, oldest first.
- ZAPISEK, JOHN CA2010-11-03 → cancelled 2023-02-01
- Gardner, Michael J AZ2023-02-22 active