what region is mayport
904. Mayport Naval Station, FL is currently using one area code which is area code 904. In addition to Mayport Naval Station, FL area code information read more about area code 904 details and Florida area codes.Mayport Naval Station, FL is located in Duval County and observes the Eastern Time Zone.View our Times by Area Code tool.04. Mayport Naval Station, FL is currently using one area code which is area code 904. In addition to Mayport Naval Station, FL area code information read more about area code 904 details and Florida area codes.