Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC6MTB callsign genealogy
Currently held by THIELE, CHERYL
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 KC6MTB's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KC6MTB.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC6MTB, oldest first.
- ZARATE, REYNALDO S CA1991-07-02 → cancelled 2003-07-03
- THIELE, CHERYL CA2018-05-30 active