Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6TRZ callsign genealogy
Currently held by Bergantzel, David G
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 K6TRZ's current licensee, walking backwards.
- Bergantzel, David GCAgranted 2010-02-02cancelled 2018-01-23
Successor callsigns
Callsigns held now by people who previously held K6TRZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6TRZ, oldest first.
- BERGANTZEL, RICHARD P CA2016-06-01 → cancelled 2017-07-14
- Bergantzel, David G CA2018-01-23 active