Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4DH callsign genealogy
Currently held by Hamilton, Darryl 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 AB4DH's current licensee, walking backwards.
- Hamilton, Darryl EALgranted 2015-10-01cancelled 2017-07-28
Successor callsigns
Callsigns held now by people who previously held AB4DH.
- BELL, STEPHEN HFLgranted 2017-06-08
All historical holders
Every license row we've seen with the callsign AB4DH, oldest first.
- BELL, STEPHEN H AZ2007-06-05 → cancelled 2014-10-23
- Hamilton, Darryl E AL2017-07-28 active