Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K6GTR callsign genealogy
Currently held by ROBERTS, GREG T
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 K6GTR's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held K6GTR.
- Kano, UniCAgranted 2018-10-23
All historical holders
Every license row we've seen with the callsign K6GTR, oldest first.
- ROBERTS, GREG T CA1998-02-26 → cancelled 2010-02-27
- Kano, Uni CA2015-03-10 → cancelled 2018-10-23
- Runge, Gerard T CA2021-02-06 active