Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NN4SA callsign genealogy
Currently held by MARSHALL AMATEUR RADIO CLUB
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 NN4SA's current licensee, walking backwards.
- WA4NZDcancelledMARSHALL AMATEUR RADIO CLUBALgranted 2007-04-17cancelled 2015-02-10
Successor callsigns
Callsigns held now by people who previously held NN4SA.
No current licensee on record previously held this callsign.