Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K3RG callsign genealogy
Currently held by GUNDERSON, ROBERT J
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 K3RG's current licensee, walking backwards.
- GUNDERSON, ROBERT JAZgranted 2024-03-05cancelled 2025-07-25
Successor callsigns
Callsigns held now by people who previously held K3RG.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K3RG, oldest first.
- REBER, GEORGE Y PA2013-04-09 → cancelled 2025-07-08
- GUNDERSON, ROBERT J AZ2025-07-25 active