Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4UD callsign genealogy
Currently held by Alexander, John L
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 AG4UD's current licensee, walking backwards.
- Alexander, John LFLgranted 1996-02-21cancelled 2002-06-20
Successor callsigns
Callsigns held now by people who previously held AG4UD.
No current licensee on record previously held this callsign.