Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC6MDH callsign genealogy
Currently held by Hegardt, Mary D
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 KC6MDH's current licensee, walking backwards.
- Hegardt, Mary DCAgranted 2007-11-21cancelled 2007-12-11
Successor callsigns
Callsigns held now by people who previously held KC6MDH.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6MDH, oldest first.
- PUEN, MERCI Q CA1990-06-19 → cancelled 2002-06-20
- Hegardt, Mary D CA2017-10-11 active