Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K4SXX callsign genealogy
Currently held by FEATHERSTON, HOWARD 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 K4SXX's current licensee, walking backwards.
- FEATHERSTON, HOWARD SNCgranted 2002-08-28cancelled 2003-02-22
Successor callsigns
Callsigns held now by people who previously held K4SXX.
No current licensee on record previously held this callsign.