Confidence: Medium · Source: FCC ULS · As of 2026-09-12
KC9EOA callsign genealogy
Currently held by Arnold Jr, Ted 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 KC9EOA'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 KC9EOA.
- Arnold Jr, Ted OINgranted 2004-04-30cancelled 2014-02-22