What type of filter attenuates RF energy above and below a certain range of frequencies?

A band-pass filter is designed to allow only a specific 'band' or range of frequencies to pass through the circuit undisturbed. To accomplish this, it must attenuate (reduce) any RF energy that falls outside of this desired range, meaning it blocks signals both above and below the target frequencies. High-pass and low-pass filters only block energy on one side of a single cut-off frequency. A notch (or band-reject) filter does the exact opposite of a band-pass filter; it blocks a specific range while letting frequencies above and below pass.