Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4CLK callsign genealogy
Currently held by Kolb, Christopher
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 K4CLK's current licensee, walking backwards.
- Kolb, ChristopherFLgranted 2025-01-15cancelled 2025-02-04
Successor callsigns
Callsigns held now by people who previously held K4CLK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4CLK, oldest first.
- Kirk, Carling L OR2012-03-10 → cancelled 2024-03-12
- Kolb, Christopher FL2025-02-04 active