Confidence: Medium · Source: FCC ULS · As of 2026-10-26
KR4OOU callsign genealogy
Currently held by Vaughn, Carter
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 KR4OOU'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 KR4OOU.
- Vaughn, Carter DALgranted 2026-09-15