Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KF4OUS callsign genealogy
Currently held by JEFFERSON COUNTY EMERGENCY MANAGEMENT AGENCY
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 KF4OUS's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KF4OUS.
- N4JCEactiveJEFFERSON COUNTY EMERGENCY MANAGEMENT AGENCYALgranted 2022-07-02