Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0BCO callsign genealogy
Currently held by CLARY, JOHN 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 K0BCO's current licensee, walking backwards.
- Danti, RobertCOgranted 2024-11-20cancelled 2024-12-10
Successor callsigns
Callsigns held now by people who previously held K0BCO.
- CLARY, JOHN ACAgranted 2020-08-12
All historical holders
Every license row we've seen with the callsign K0BCO, oldest first.
- CLARY, JOHN A CO2007-07-10 → cancelled 2010-06-22
- Danti, Robert CO2024-12-10 active