KEZK is a subsidiary of CBS Radio, one of the largest major market radio operators in the United States, with stations covering news, alternative rock, country, classic rock, oldies and urban formats. A division of CBS Corporation, CBS Radio operates nearly 180 radio stations, the majority of which are in the nation's top 50 markets. The company is home to about 30 of the country's leading sports franchises, such as MLB, the NFL, the NBA, the WNBA and the NHL, including the New York Yankees, New York Mets, Chicago White Sox, New England Patriots, New York Giants, Chicago Bears and the Detroit Red Wings. The CBS Radio network provides premier hourly newscasts to more than 1500 news and news and talk formatted stations. KEZK is located in St. Louis.