Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4MO callsign genealogy
Currently held by SHEPUTA, CHARLES A
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 KO4MO's current licensee, walking backwards.
- KR4FAMcancelledLake Como Radio ClubFLgranted 2025-07-02cancelled 2025-07-22
Successor callsigns
Callsigns held now by people who previously held KO4MO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign KO4MO, oldest first.
- SHEPUTA, CHARLES A FL2001-09-25 → cancelled 2013-11-20
- Lake Como Radio Club FL2025-07-22 active