Confidence: Medium · Source: FCC ULS · As of 2026-09-14
K0YHF callsign genealogy
Currently held by Campbell, John
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 K0YHF's current licensee, walking backwards.
- Campbell, JohnNCgranted 2023-01-20cancelled 2026-04-07
Successor callsigns
Callsigns held now by people who previously held K0YHF.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K0YHF, oldest first.
- Klor, Kelley M MO2013-12-10 → cancelled 2026-03-06
- Campbell, John NC2026-04-07 active