Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB4AT callsign genealogy
Currently held by GIFFORD, DAVID K
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 AB4AT's current licensee, walking backwards.
- GIFFORD, DAVID KMAgranted 2003-11-21cancelled 2009-06-02
Successor callsigns
Callsigns held now by people who previously held AB4AT.
- DEAN, EDWARD BVAgranted 2016-03-22cancelled 2021-08-14
All historical holders
Every license row we've seen with the callsign AB4AT, oldest first.
- DEAN, EDWARD B VA2003-08-12 → cancelled 2006-04-29
- GIFFORD, DAVID K MA2019-05-03 active