Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AB3U callsign genealogy
Currently held by WINFREE, WILLIAM 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 AB3U's current licensee, walking backwards.
- Beard, Andrew RMDgranted 2016-08-23cancelled 2017-07-18
Successor callsigns
Callsigns held now by people who previously held AB3U.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AB3U, oldest first.
- WINFREE, WILLIAM E PA2005-04-01 → cancelled 2017-06-29
- Beard, Andrew R VA2017-07-18 active