Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3MAG callsign genealogy
Currently held by Gruber, Mark 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 K3MAG's current licensee, walking backwards.
- Gruber, Mark ACAgranted 2012-04-24cancelled 2015-05-27
Successor callsigns
Callsigns held now by people who previously held K3MAG.
No current licensee on record previously held this callsign.