Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K6SWX callsign genealogy
Currently held by Chau, Sam
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 K6SWX's current licensee, walking backwards.
- Chau, SamCAgranted 2015-04-02cancelled 2020-02-14
Successor callsigns
Callsigns held now by people who previously held K6SWX.
No current licensee on record previously held this callsign.