Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K9CK callsign genealogy
Currently held by King, Brian 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 K9CK's current licensee, walking backwards.
- King, Brian RMIgranted 2004-06-24cancelled 2006-05-16
Successor callsigns
Callsigns held now by people who previously held K9CK.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CK, oldest first.
- KELLY, CORWIN L IN1998-01-09 → cancelled 2006-02-15
- King, Brian R MI2026-02-18 active