Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6RPG callsign genealogy
Currently held by GRUEN, RICHARD P
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 K6RPG's current licensee, walking backwards.
- Gabrielson, Robert PCAgranted 2017-07-25cancelled 2017-08-12
Successor callsigns
Callsigns held now by people who previously held K6RPG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K6RPG, oldest first.
- GRUEN, RICHARD P CA2003-07-18 → cancelled 2015-07-21
- Gabrielson, Robert P CA2017-08-12 active