"Radio Once"@en . . "WMSW"@en . . . "WMSW (1120 AM, \"Radio Once\") is a radio station licensed to serve Hatillo, Puerto Rico. The station is owned by Aurora Broadcasting Corporation. It airs a News/Talk format.The station was assigned the WMSW call letters by the Federal Communications Commission on December 31, 1979."@en . . . "1.12e+06"^^ . "3257"^^ . . . "B" . .