KSUT originally signed on as a non-commercial radio station licensed to serve the community of Ignacio, Colorado. The station has since expanded to two distinct formats, Four Corners Public Radio, with a public radio format of NPR and music programming, and Southern Ute Tribal Radio, which airs Native American music and news. While the stations have different legal call letters, both stations still refer to themselves on-air, online, and in marketing as KSUT.