Charter Communications, Inc., through its subsidiaries, provides cable services to residential and commercial customers in the United States. It offers subscription-based video services, including video on demand, high definition television, digital video recorder, pay-per-view, spectrum guide services, and a package of basic video programming, as well as ad-supported free online video products. The company also provides Internet services, such as security suite that protects computers from viruses and spyware; in-home WiFi, which permits customers to lease high performance wireless routers to enhance their in-home wireless Internet experience; out-of-home WiFi; parental control features; and residential Internet services. In addition, it offers voice communications services using voice over Internet protocol technology; and broadband communications solutions, such as Internet access, data networking, fiber connectivity, video entertainment, and business telephone services to cellular towers and office buildings for business and carrier organizations. Further, the company provides video programming and music, Web hosting, email and security, and multi-line telephone services, as well as Web-based service management; and sells video and online advertising inventory to local, regional, and national advertising customers. Additionally, it offers fiber-delivered communications and managed information technology solutions; and security and home management services, as well as owns and operates regional sports networks and local sports, news, and lifestyle channels. As of December 31, 2017, the company served approximately 27.2 million residential and business customers. Charter Communications, Inc. was founded in 1999 and is based in Stamford, Connecticut.