Radio Once

About Radio Once

Radio Once, also known as WMSW (1120 KHz AM), is a leading radio station based in Hatillo, Puerto Rico, that specializes in a dynamic news/talk format tailored for listeners across the island’s northern region. It is broadcasting the best music and entertainment straight to listeners’ devices, bringing the Caribbean vibes right into their living room. The station is owned by Aurora Broadcasting Corporation. Its news-and-talk format is particularly important for listeners who want local information combined with interviews, commentary, sports coverage, and community-oriented programming. As an affiliate of the Radio Isla network, Radio Once is widely trusted for its high-quality Spanish-language programming. From Latin pop hits to salsa classics, this radio station has something for everyone.