Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MAH callsign genealogy
Currently held by Heil, 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 K6MAH's current licensee, walking backwards.
- Heil, Michael ACAgranted 1997-05-20cancelled 2005-06-01
Successor callsigns
Callsigns held now by people who previously held K6MAH.
No current licensee on record previously held this callsign.