Confidence: Medium · Source: FCC ULS · As of 2026-09-14
WJ4O callsign genealogy
Currently held by WHITE, JAMES G
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 WJ4O's current licensee, walking backwards.
- White, James GKYgranted 2001-12-26cancelled 2004-04-06
Successor callsigns
Callsigns held now by people who previously held WJ4O.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign WJ4O, oldest first.
- CUNNINGHAM, ROBERT A FL1992-02-25 → cancelled 2000-04-04
- WHITE, JAMES G KY2024-01-11 active