Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AC4OJ callsign genealogy
Currently held by VAN ETTEN, UPTON A
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 AC4OJ's current licensee, walking backwards.
- WA2RNDno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AC4OJ.
No current licensee on record previously held this callsign.