United Parcel Service, Inc. (NYSE: UPS), commonly referred to as UPS, is the world's largest package delivery company. Headquartered in Sandy Springs, Georgia, United States,[2][3] UPS delivers more than 15 million packages[4] a day to 6.1 million customers in more than 200 countries and territories around the world. Since 2005, its operations include logistics and other transportation-related areas. It was based in New York City from 1930 until 1975, Greenwich, Connecticut from 1975 until 1991, and has been based in Sandy Springs since 1991.