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.
[1] 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.
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