WNYC is the trademark, and a set of call letters shared by a pair of non-profit, noncommercial, public radio stations located in New York City. New York Public Radio formerly did business as WNYC RADIO until March 2013. WNYC (AM) broadcasts on 820 kHz, and WNYC-FM broadcasts on 93.9 MHz. Both stations are owned by New York Public Radio and are members of NPR and carry local and national news/talk programs. Some hours the programming is simulcast, some hours different shows air on each station. WNYC reaches more than one million listeners each week and has the largest public radio audience in the United States.