Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KO4PCC callsign genealogy
Currently held by Cook, Joseph C
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 KO4PCC's current licensee, walking backwards.
- Cook, Joseph CFLgranted 2020-06-12cancelled 2020-09-15
Successor callsigns
Callsigns held now by people who previously held KO4PCC.
No current licensee on record previously held this callsign.