AB ORO NAVIGACIJA (ON) is a certified European air navigation service provider (ANSP), rendering air traffic management, communication, navigation and surveillance as well as aeronautical information services across the airspace of the Republic of Lithuania, also above the territorial waters and within the Baltic Sea airspace, which belongs to Vilnius flight information region (FIR). The enterprise also ensures continuous operation of Aeronautical Rescue Coordination Centre, organization and coordination of search and rescue operations in case of an aircraft accident.