Confidence: Medium · Source: FCC ULS · As of 2026-09-12
N4QZ callsign genealogy
Currently held by Johnson, Robert B
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 N4QZ's current licensee, walking backwards.
- Johnson, Robert BTNgranted 2004-04-22cancelled 2008-05-24
Successor callsigns
Callsigns held now by people who previously held N4QZ.
No current licensee on record previously held this callsign.
All historical holders
Every license row we've seen with the callsign N4QZ, oldest first.
- ARMSTRONG, JACK A NC1997-03-12 → cancelled 2006-05-05
- Johnson, Robert B TN2018-03-14 active