Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7ADO callsign genealogy
Currently held by WOLFSEN, WILLIAM A
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 K7ADO's current licensee, walking backwards.
- Bennion, StephenAZgranted 2019-06-25cancelled 2019-08-06
Successor callsigns
Callsigns held now by people who previously held K7ADO.
- Bennion, Stephen JAZgranted 2020-07-03
All historical holders
Every license row we've seen with the callsign K7ADO, oldest first.
- WOLFSEN, WILLIAM A OR2006-04-29 → cancelled 2018-07-18
- Bennion, Stephen J AZ2019-08-06 → cancelled 2020-07-03