Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KZ4KZ callsign genealogy
Currently held by Stachyra, Leszek
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 KZ4KZ's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KZ4KZ.
No current licensee on record previously held this callsign.