Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3JRG callsign genealogy
Currently held by Grabe, Justin 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 K3JRG's current licensee, walking backwards.
- Grabe, Justin RPAgranted 2017-11-14cancelled 2017-12-05
Successor callsigns
Callsigns held now by people who previously held K3JRG.
No current licensee on record previously held this callsign.