Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KM4MAC callsign genealogy
Currently held by Cooper, Michael 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 KM4MAC's current licensee, walking backwards.
- Cooper, Michael AVAgranted 2006-08-07cancelled 2006-10-11
Successor callsigns
Callsigns held now by people who previously held KM4MAC.
No current licensee on record previously held this callsign.