Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC7JO callsign genealogy
Currently held by OLIVER, JUDY 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 KC7JO's current licensee, walking backwards.
- OLIVER, JUDY ATXgranted 2006-09-27cancelled 2007-09-29
Successor callsigns
Callsigns held now by people who previously held KC7JO.
- MADISON, THOMAS DWAgranted 2023-02-14