Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KW4XJ callsign genealogy
Currently held by BREWER, MARK 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 KW4XJ's current licensee, walking backwards.
- BREWER, MARK AVAgranted 2008-11-04cancelled 2016-08-23
Successor callsigns
Callsigns held now by people who previously held KW4XJ.
No current licensee on record previously held this callsign.