Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K4OTO callsign genealogy
Currently held by BERRY, CHARLES L
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 K4OTO's current licensee, walking backwards.
- Deschene, Brett HGAgranted 2017-02-06cancelled 2018-04-06
Successor callsigns
Callsigns held now by people who previously held K4OTO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K4OTO, oldest first.
- BERRY, CHARLES L FL1996-11-01 → cancelled 2008-11-04
- Deschene, Brett H GA2018-04-06 active