Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA4ET callsign genealogy
Currently held by BAIRD, WILLIAM A
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 AA4ET's current licensee, walking backwards.
- Keyes, Richard AFLgranted 1997-10-24cancelled 2006-02-04
Successor callsigns
Callsigns held now by people who previously held AA4ET.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA4ET, oldest first.
- BAIRD, WILLIAM A OK1993-11-16 → cancelled 2005-11-17
- KEYES, RICHARD A FL2025-12-12 active