Confidence: Medium · Source: FCC ULS · As of 2026-09-12
NN4X callsign genealogy
Currently held by SACCO JR, STEPHAN J
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 NN4X's current licensee, walking backwards.
Successor callsigns
Callsigns held now by people who previously held NN4X.
No current licensee on record previously held this callsign.