Confidence: Medium · Source: FCC ULS · As of 2026-09-12
K0IOA callsign genealogy
Currently held by Johnson Jr, George R
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 K0IOA's current licensee, walking backwards.
- Johnson Jr, George RCAgranted 2003-02-13cancelled 2003-03-14
Successor callsigns
Callsigns held now by people who previously held K0IOA.
No current licensee on record previously held this callsign.