Callsign NSZ is Norwegian Air Sweden
WHAT AIRLINE IS NSZ?
NSZ is the ICAO three-letter callsign prefix for Norwegian Air Sweden. When a radio scanner, flight tracker or radar scope shows a flight like NSZ123 or NSZ45XY overhead, that's a Norwegian Air Sweden aircraft talking to air traffic control.
Spot one yourself: open the live scope, enter your postcode, and tap any blip whose callsign starts with NSZ for its type, registration, route and photo.