Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KK6MAC callsign genealogy
Currently held by Acosta, Mark
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 KK6MAC's current licensee, walking backwards.
- Acosta, MarkCAgranted 2014-02-04cancelled 2014-04-15
Successor callsigns
Callsigns held now by people who previously held KK6MAC.
No current licensee on record previously held this callsign.