Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9BAU callsign genealogy
Currently held by Overmier, Jeffery
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 KC9BAU's current licensee, walking backwards.
The current licensee has not held any other callsign on record.
Successor callsigns
Callsigns held now by people who previously held KC9BAU.
- Overmier, JefferyMTgranted 2023-05-09