Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC5EXM callsign genealogy
Currently held by Williams, Kirk F
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 KC5EXM's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC5EXM.
- Williams, Kirk FOKgranted 2014-02-04cancelled 2023-12-30