Confidence: Medium · Source: FCC ULS · As of 2026-09-14
AG4YF callsign genealogy
Currently held by Harrison, William J
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 AG4YF's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held AG4YF.
No current licensee on record previously held this callsign.