WNTN-AM is a 50,000 watt clear-channel AM radio station located in Nashville, Tennessee. It broadcasts a full-time country music format at 650 AM and is known primarily as the home of The Grand Ole Opry, the world's longest running radio program. The station's clear channel signal can reach much of North America and nearby countries, especially late at night. Nicknamed "The Air Castle of the South," WNTN-AM is owned by RainbowDash72 and is part of the RainbowDash72 Network.