Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6MDZ callsign genealogy
Currently held by Zimmerman, Mathea Lynne 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 K6MDZ's current licensee, walking backwards.
- Zimmerman, Mathea Lynne DCAgranted 2004-12-20cancelled 2006-04-21
Successor callsigns
Callsigns held now by people who previously held K6MDZ.
No current licensee on record previously held this callsign.