Air France (formally Société Air France SA), stylised as AirFrance, is the French flag carrier headquartered in Tremblay-en-France, France (north of Paris), and is one of the world's largest airlines. It is a subsidiary of the Air France-KLM Group and a founding member of the SkyTeam global airline alliance. As of 2010 Air France serves 32 destinations in France and operates worldwide scheduled passenger and cargo services to 152 destinations in 91 countries (including Overseas departments and territories of France) and also carried 70 million passengers. The airline's global hub is at Paris Charles de Gaulle Airport, with Paris Orly Airport, Lyon-Saint Exupéry Airport, and Nice Côte d'Azur Airport serving as secondary hubs. Air France's corporate headquarters, previously in Montparnasse, Paris, are located on the grounds of Paris-Charles de Gaulle Airport, north of Paris.