Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7OOU callsign genealogy
Currently held by Allen, Brent C
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 KC7OOU's current licensee, walking backwards.
- Allen, Brent CWAgranted 2005-11-01cancelled 2009-10-10
Successor callsigns
Callsigns held now by people who previously held KC7OOU.
- Allen, Brent CWAgranted 2005-11-01cancelled 2009-10-10
All historical holders
Every license row we've seen with the callsign KC7OOU, oldest first.
- Allen, Brent C WA2005-11-01 → cancelled 2006-04-19
- Allen, Brent C WA2009-10-10 → cancelled 2021-10-13