Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4KCL callsign genealogy
Currently held by Libutti, Kenneth C
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 K4KCL's current licensee, walking backwards.
- Libutti, Kenneth CFLgranted 2016-07-13cancelled 2016-08-20
Successor callsigns
Callsigns held now by people who previously held K4KCL.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4KCL, oldest first.
- Gregory, Donald B CA2004-04-27 → cancelled 2016-07-14
- Libutti, Kenneth C FL2026-06-18 active