The New York Sports radio WFAN, first broadcast on July 1, 1987 at 1050AM replacing WHN. WFAN was the first all sports station in the United States. The station's current frequency, 660AM. was formerly known as WNBC and first transmitted on March 2, 1922. WFAN moved to 660AM at 5:30PM Eastern Time on October 7, 1988 when WNBC signed off for the last time.