C Spire is a privately held telecommunications and technology company that provides wireless communications, high-speed Internet access, and a range of other telecommunications services to consumers and businesses in Mississippi, Alabama, Tennessee, and Florida. The company was founded in 1988 as Cellular South and rebranded as C Spire in 2011. C Spire is known for its customer service and community involvement, and has been recognized as one of the best places to work in Mississippi.