Janet is a highly classified passenger service operated for the United States Air Force (USAF). The secret shuttle service transports military employees, Department of Defence (DoD) civilians, and specialized contractors to various classified sites, including Area 51 and Tonopah Test Range. Operated under the callsign “JANET”, the carrier utilizes a fleet of six unmarked Boeing 737-600s. It also utilizes a handful of Beechcraft propeller aircraft.