Confidence: Medium · Source: FCC ULS · As of 2026-09-12
W7DHD callsign genealogy
Currently held by BYRON, WILLIAM J
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 W7DHD's current licensee, walking backwards.
- DECKER, DOUGLAS HAZgranted 2007-03-06cancelled 2017-02-24
Successor callsigns
Callsigns held now by people who previously held W7DHD.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W7DHD, oldest first.
- BYRON, WILLIAM J AZ1995-05-22 → cancelled 2007-05-23
- DECKER, DOUGLAS H AZ2017-02-24 active