Confidence: Medium · Source: FCC ULS · As of 2026-09-11
KC0MAS callsign genealogy
Currently held by Fitch Jr, Robert J
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 KC0MAS's current licensee, walking backwards.
- SUTCLIFFE, MARCMOgranted 2021-03-18cancelled 2021-04-30
Successor callsigns
Callsigns held now by people who previously held KC0MAS.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KC0MAS, oldest first.
- Fitch Jr, Robert J MN2002-01-02 → cancelled 2014-01-03
- SUTCLIFFE, MARC MO2021-04-30 active