Confidence: Medium · Source: FCC ULS · As of 2026-09-12
AA7OO callsign genealogy
Currently held by COX, OTHA L
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 AA7OO's current licensee, walking backwards.
- Johnson, Norman EAZgranted 2004-07-31cancelled 2005-05-07
Successor callsigns
Callsigns held now by people who previously held AA7OO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign AA7OO, oldest first.
- COX, OTHA L OR1992-04-14 → cancelled 2004-04-15
- Johnson, Norman E AZ2025-04-11 active