Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K5LCZ callsign genealogy
Currently held by CASTRO, LEON R
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 K5LCZ's current licensee, walking backwards.
- CASTRO, LEON RTXgranted 2020-08-03cancelled 2024-09-13
Successor callsigns
Callsigns held now by people who previously held K5LCZ.
No current licensee on record previously held this callsign.