Suddenlink was an American telecommunications subsidiary of Altice USA trading in cable television, broadband, IP telephony, home security, and advertising. Prior to its acquisition by Altice, the company was the seventh largest cable operator with 1.5 million residential and 90,000 business subscribers. After Altice acquired Cablevision Systems Corporation on November 30, 2016, Suddenlink was combined with Cablevision. Together with Optimum - the name used by Cablevision for its products - Altice USA became the United States' fourth largest cable operator with 4.6 million subscribers, and the sixth largest Pay TV service provider with 3.5 million subscribers. On August 1, 2022, Suddenlink rebranded into Optimum.