Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO4KJV callsign genealogy
Currently held by MCMAHAN, THERESA 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 KO4KJV's current licensee, walking backwards.
- MCMAHAN, THERESA ATNgranted 2021-04-19cancelled 2023-01-24
Successor callsigns
Callsigns held now by people who previously held KO4KJV.
No current licensee on record previously held this callsign.