Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W6GRF callsign genealogy
Currently held by Gumagay, Griffin
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 W6GRF's current licensee, walking backwards.
- Gumagay, GriffinCAgranted 2020-10-14cancelled 2020-11-03
Successor callsigns
Callsigns held now by people who previously held W6GRF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W6GRF, oldest first.
- OKU, GEORGE I CA1991-01-22 → cancelled 1998-07-27
- Gumagay, Griffin CA2020-11-03 active