Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0BYC callsign genealogy
Currently held by County, Chad 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 K0BYC's current licensee, walking backwards.
- County, Chad JNEgranted 2020-10-09cancelled 2022-05-14
Successor callsigns
Callsigns held now by people who previously held K0BYC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0BYC, oldest first.
- FINDLAY, HOWARD L KS1995-11-28 → cancelled 2007-11-29
- County, Chad J NE2022-05-14 active