The station has more than a million listeners in Spain, and broadcasts to 12 countries, including the United States. Los 40 began as a music show on the Radio Madrid station and evolved into a stand-alone radio station in 1979. It is now the most popular music station in many regions of the country. Some LOS40 radio stations are owned by PRISA, while others are operated by local broadcasting companies. https://emisorasderadioonline.....es/los-40-principale