Serving the Research Triangle region of North Carolina, Raleigh-Durham International Airport (RDU) handles about 9.5 million passengers annually. The airport, which is located in Morrisville, has three runways and two passenger terminals with three concourses (Concourse A in Terminal 1 and Concourses C and D in Terminal 2). There are a total of about 45 gates. Ten commercial carriers fly between RDU and destinations in the United States, Canada, Mexico, the Bahamas and Europe. These include Delta Air Lines, Southwest Airlines, and American Airlines. Amenities at Raleigh-Durham International Airport include restaurants, retail stores, a free cell phone waiting lot, free WIFI internet, shoeshine stands, a spa and ATMs.