Clear Channel Communications is a conglomeration of radio stations and outdoor advertisers which sells ad space, both physical and over the air, to companies and marketing firms. In the Lehigh Valley, Clear Channel operates four radio stations (B104, WZZ0, AM1470 and WAEB) and its offices can be found in the Sunburst Office Center of Alta Drive in Whitehall. Complete corporate information can be found on the Clear Channel website.