Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC4JXX callsign genealogy
Currently held by Lesko, William D
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 KC4JXX's current licensee, walking backwards.
- Lesko, William DFLgranted 2005-02-17cancelled 2011-08-13
Successor callsigns
Callsigns held now by people who previously held KC4JXX.
- Staples, David WFLgranted 2024-07-06
All historical holders
Every license row we've seen with the callsign KC4JXX, oldest first.
- STAPLES, DAVID W FL1999-03-22 → cancelled 2004-05-28
- Lesko, William D FL2022-05-19 active