Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0FRG callsign genealogy
Currently held by Frogner, Robert L
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 K0FRG's current licensee, walking backwards.
- Frogner, Robert LCAgranted 2016-11-09cancelled 2016-12-24
Successor callsigns
Callsigns held now by people who previously held K0FRG.
No current licensee on record previously held this callsign.