Clearwire | 8,947 followers on LinkedIn. The Clearwire 4G mobile broadband network now covers more than 130 million people in the U.S. including 35 of the top 40 U.S. markets. Our WiMAX network represents one of the fastest expansions in history, and our 4G network is highly scalable and backed by a wealth of spectrum. In 2011 Clearwire was one of the fastest growing companies in the wireless industry and today serves 11 million 4G customers.