Ascent Capital Group, Inc., formerly Ascent Media Corporation, is a holding company. The Company owns 100% interest of its operating subsidiary, Monitronics International Inc. (Monitronics). Monitronics is a home security alarm monitoring company. Monitronics provides monitored business and home security system services to more than 700,000 residential customers and commercial clients in the United States, Canada and Puerto Rico through its network of nationwide, independent authorized dealers. In August 2013, the Company announced that its subsidiary, Monitronics International, Inc acquired Security Networks, LLC.