Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NS0N callsign genealogy
Currently held by FITZGERALD, MARK A
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 NS0N's current licensee, walking backwards.
- FITZGERALD, MARK ANEgranted 1998-05-05cancelled 2000-08-15
Successor callsigns
Callsigns held now by people who previously held NS0N.
- ARNESON, BARRY AWIgranted 2016-10-18