Confidence: Medium · Source: FCC ULS · As of 2026-09-14
N4AAO callsign genealogy
Currently held by Johnson III, Roscoe H
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 N4AAO's current licensee, walking backwards.
- Johnson III, Roscoe HNCgranted 2017-03-28cancelled 2017-07-04
Successor callsigns
Callsigns held now by people who previously held N4AAO.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4AAO, oldest first.
- MILLER, JOHN J FL1997-11-21 → cancelled 2009-11-24
- Johnson III, Roscoe H NC2017-07-04 active