Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KZ4KQ callsign genealogy
Currently held by LEON, FRANCISCO 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 KZ4KQ's current licensee, walking backwards.
- LEON, FRANCISCO RFLgranted 2015-01-06cancelled 2024-08-16
Successor callsigns
Callsigns held now by people who previously held KZ4KQ.
- LEON, FRANCISCO RFLgranted 2024-09-04