Confidence: Medium · Source: FCC ULS · As of 2026-09-14
KC9UAA callsign genealogy
Currently held by MARCELL SR, RONALD O
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 KC9UAA'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 KC9UAA.
- MARCELL SR, RONALD OILgranted 2025-04-03