Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4WH callsign genealogy
Currently held by BEARDSHAW III, WILLIAM 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 AC4WH's current licensee, walking backwards.
- KD4IUOno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AC4WH.
- BEARDSHAW III, WILLIAM SNCgranted 2023-04-29