Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AD7DU callsign genealogy
Currently held by Gardner, Robert E
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 AD7DU's current licensee, walking backwards.
- Gardner, Robert EAZgranted 2001-02-21cancelled 2004-09-30
- KA3YQWno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AD7DU.
No current licensee on record previously held this callsign.