U.S. Cellular provides its customers with unmatched benefits and industry-leading innovations designed to elevate the customer experience. The Chicago-based carrier has a strong line-up of cutting-edge devices that are all backed by its high-speed network. Currently, more than 93 percent of customers have access to 4G LTE speeds. U.S. Cellular was named a J.D. Power and Associates Customer Champion in 2014 for the third time in four years.