Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC1OU callsign genealogy
Currently held by Olsen, Timothy W
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 AC1OU's current licensee, walking backwards.
- Olsen, Timothy WCTgranted 2022-11-17cancelled 2023-03-24
Successor callsigns
Callsigns held now by people who previously held AC1OU.
No current licensee on record previously held this callsign.