Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KO6JOI callsign genealogy
Currently held by Thayer, Debra J
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 KO6JOI's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held KO6JOI.
- Thayer, Debra JCAgranted 2025-06-24