Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4QM callsign genealogy
Currently held by SUTTON, FRED 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 KO4QM's current licensee, walking backwards.
- KC4ZMXno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held KO4QM.
- SUTTON, FRED RFLgranted 2020-04-15