Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K7OEC callsign genealogy
Currently held by Cook, Oscar E
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 K7OEC's current licensee, walking backwards.
- Rivera, LuisCOgranted 2021-09-13cancelled 2022-02-18
Successor callsigns
Callsigns held now by people who previously held K7OEC.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign K7OEC, oldest first.
- Cook, Oscar E AZ2016-09-27 → cancelled 2020-02-25
- Rivera, Luis O CO2022-02-18 active