Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4SW callsign genealogy
Currently held by Mckenzie, Stephan 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 KZ4SW's current licensee, walking backwards.
- Mckenzie, Stephan GFLgranted 2025-04-23cancelled 2025-05-09
Successor callsigns
Callsigns held now by people who previously held KZ4SW.
No current licensee on record previously held this callsign.