Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA3HO callsign genealogy
Currently held by COOPER, ARNOLD K
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 AA3HO's current licensee, walking backwards.
- KB3AOIno FCC ULS record on file
Successor callsigns
Callsigns held now by people who previously held AA3HO.
- Cooper, Arnold KNJgranted 2010-10-13cancelled 2012-05-15