United States Cellular Corp was incorporated under the laws of the state of Delaware in 1983. The Company is a wireless telecommunications service provider. The Company provides services to approximately 4.9 million customers in 23 states, collectively representing a total population of 32.0 million. It offers wireless devices such as handsets, modems, mobile hotspots, home phones and tablets for use by its customers. In addition, the Company offers accessories including wireless basics such as carrying cases, hands-free devices, batteries, battery chargers, and memory cards to related consumer electronics such as headphones, speakers, and Bluetooth keyboards. It also sells wireless devices to agents and other third-party distributors for resale. It also offers services including voice; messaging and data usage options and pricing that are designed to fit different customer needs, usage patterns and budgets. It offers service to postpaid and prepaid customers from a variety of demographic segments. It focuses on retail consumers, government, and small-to-mid-size business customers in industries such as construction, retail, professional services and real estate. The Company purchases wireless devices and accessory products from a number of manufacturers, including Samsung, Apple, Motorola, LG, Superior Communications, Kyocera, ZTE, Tessco, and Sierra Wireless. The Company operates four regional customer care centers with personnel who are responsible for customer service activities, and a national financial services center with personnel who perform credit and other customer payment activities. It also contracts with third parties that provide additional customer care and financial services support. The Overage Protection service provides customers peace-of-mind by sending them text message alerts when they come close to reaching their allowable monthly plan minutes, text messages or data usage in order to avoid overage charges. The Company's distribution program consists of retail sales and service centers, direct sales, third-party national retailers and independent agents, plus the website and telesales for customers who wish to contact the Company through the Internet or by phone. The Company's products are provided by Wal-Mart and Sam's Club at select retail locations. Further, Amazon offers the Company's prepaid service on-line. The Company also markets wireless service through resellers. The Company's competitors include Verizon Wireless, AT&T Mobility, Sprint, and T-Mobile USA., among others. The Company's operations are subject to FCC and state regulations.