Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K9CCX callsign genealogy
Currently held by THOMPSON, MILTON 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 K9CCX's current licensee, walking backwards.
- McKenna, WilliamILgranted 2020-06-30cancelled 2020-11-06
Successor callsigns
Callsigns held now by people who previously held K9CCX.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K9CCX, oldest first.
- THOMPSON, MILTON R AZ2003-12-23 → cancelled 2016-03-23
- McKenna, William IL2020-11-06 active