Charter Communications, Inc., is an American telecommunications and mass media company with services branded as Spectrum. The company is headquartered in Stamford, Connecticut. With over 32 million customers in 41 states as of 2022, it is the largest cable operator in the United States by subscribers, just ahead of Comcast, and the largest pay TV operator ahead of Comcast and AT&T. Charter is the fifth-largest telephone provider based on number of residential lines. Its brand of Spectrum services also include internet access, internet security, managed services, and unified communications. In late 2012, with longtime Cablevision executive Thomas Rutledge named as their CEO, Charter relocated its corporate headquarters from St. Louis, Missouri, to Stamford, Connecticut, though kept many of its operations in St. Louis. On May 18, 2016, Charter finalized acquisition of Time Warner Cable and its sister company Bright House Networks, making it the third-largest pay television service in the United States. In 2019, Charter ranked No. 70 in the Fortune 500 list of the largest United States corporations by total revenue.