Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AG4AT callsign genealogy
Currently held by Loudin, Philip 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 AG4AT's current licensee, walking backwards.
- LOUDIN, PHILIP LALgranted 1999-03-18cancelled 2000-07-26
Successor callsigns
Callsigns held now by people who previously held AG4AT.
No current licensee on record previously held this callsign.