Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KN0CMS callsign genealogy
Currently held by Stefaniak, Chad M
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 KN0CMS's current licensee, walking backwards.
- Stefaniak, ChadSCgranted 2024-02-23cancelled 2024-03-16
Successor callsigns
Callsigns held now by people who previously held KN0CMS.
No current licensee on record previously held this callsign.