Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4YB callsign genealogy
Currently held by ARMSTRONG, JOEL S
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 AG4YB's current licensee, walking backwards.
- Armstrong, Joel SVAgranted 1994-08-12cancelled 2003-02-11
Successor callsigns
Callsigns held now by people who previously held AG4YB.
No current licensee on record previously held this callsign.