NASCAR Xfinity Series Frequencies Frequencies current as of March 16, 2023. (source) Data from Speedway Digest CarDriverPrimarySecondary 00Cole Custer468.2875452.8375 02David Starr459.6125457.2125 07Blaine Perkins466.3125467.7125 08Gray Gaulding463.6375463.7875 ...