Charter Communications, Inc., through its subsidiaries, provides entertainment, information, and communications solutions to residential and commercial customers in the United States. It offers cable video programming services, including basic and digital video, premium channels, OnDemand, pay-per-view, high definition television, digital video recorder, and online video services. The company also provides Internet services, such as residential Internet services; Charter.net, an Internet portal that provides multiple e-mail addresses, as well as various entertainment, games, news, and sports content; and Charter Security Suite, which protects computers from viruses and spyware, as well as provides parental control features. In addition, it offers telephone services, such as voice communications services primarily using voice over Internet protocol technology; broadband communications solutions comprising Internet access, data networking, fiber connectivity to cellular towers and office buildings, video entertainment services, and business telephone services to business and carrier organizations. As of December 31, 2012, the company served approximately 4.0 million video customers; approximately 3.8 million residential Internet customers; approximately 1.9 million residential telephone customers; and approximately 467,000 commercial primary service units, primarily small-and medium-sized commercial customers. Charter Communications, Inc. was founded in 1999 and is headquartered in Stamford, Connecticut.