Delta Air Lines, Inc. (NYSE: DAL) is a Unite States airline based and headquartered in Atlanta, Georgia. Delta operates an expansive domestic and international network, spanning North America, South America, Europe, Asia, Africa, the Middle East and the Caribbean. Delta flies to over 332 destinations in 57 countries (excluding codeshare), across 5 continents. Delta is the only major U.S. carrier that flies to Africa. On April 14, 2008, Northwest Airlines announced it would be merging with Delta to form the new Delta Air Lines. Once in place, the "new" Delta would become the world's largest carrier.