Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC7DO callsign genealogy
Currently held by MARSHALL, WILLY 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 AC7DO's current licensee, walking backwards.
- MARSHALL, WILLIAM AUTgranted 1999-07-15cancelled 2000-05-23
Successor callsigns
Callsigns held now by people who previously held AC7DO.
No current licensee on record previously held this callsign.