Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6GRI callsign genealogy
Currently held by GRINER, MARK E
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 K6GRI's current licensee, walking backwards.
- GRINER, MARK ECAgranted 2020-07-22cancelled 2022-03-22
Successor callsigns
Callsigns held now by people who previously held K6GRI.
No current licensee on record previously held this callsign.