Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4GRK callsign genealogy
Currently held by Kambeck Jr, Gary R
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 K4GRK's current licensee, walking backwards.
- Kambeck Jr, Gary RVAgranted 2020-11-13cancelled 2021-01-26
Successor callsigns
Callsigns held now by people who previously held K4GRK.
No current licensee on record previously held this callsign.