Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9RGF callsign genealogy
Currently held by HANGER, CARL F
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 K9RGF's current licensee, walking backwards.
- FILBY III, ROBERT GILgranted 2017-11-17cancelled 2018-03-13
Successor callsigns
Callsigns held now by people who previously held K9RGF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9RGF, oldest first.
- HANGER, CARL F IN1994-07-16 → cancelled 2006-07-18
- FILBY III, ROBERT G IL2018-03-13 active