Confidence: Medium · Source: FCC ULS · As of 2026-09-14
W4KOX callsign genealogy
Currently held by Chamberlain, Thomas 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 W4KOX's current licensee, walking backwards.
- Chamberlain, Thomas SKYgranted 2010-02-16cancelled 2012-06-12
Successor callsigns
Callsigns held now by people who previously held W4KOX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign W4KOX, oldest first.
- CHAMBERLAIN, RUSSELL E KY2006-04-27 → cancelled 2010-08-02
- Chamberlain, Thomas S KY2022-09-20 active