Netherlands-based Altice acquired most of Suddenlink’s shares from various investors in 2015. Altice merged the St. Louis-based Suddenlink cable company with another acquisition, New Jersey’s Cablevision (now Optimum), in 2016. Both are subsidiaries of the holding company Altice USA, which is headquartered in New York City. They deliver internet through a hybrid fiber-coaxial broadband network and fiber-to-the-home connections.