The following radio stations broadcast on AM frequency 1240 kHz: 1240 AM is a regional (Class B) frequency outside the coterminous 48 United States (Alaska, Hawaii, Puerto Rico, & U.S. Virgin Islands), and a local frequency (Class C) within the coterminous 48 United States.
Between 1951 and 1963, the frequency was also one of two used for the United States' CONELRAD emergency broadcasting system, the other frequency being 640 AM.