Confidence: Medium · Source: FCC ULS · As of 2026-09-15
K9TOA 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 K9TOA's current licensee, walking backwards.
- Arnold Jr, Ted OINgranted 2003-07-21cancelled 2004-04-30
Successor callsigns
Callsigns held now by people who previously held K9TOA.
- Arnold Jr, Ted OINgranted 2024-02-17