U.S Cellular activation, account and payment information
United States Cellular Corporation , doing business as U.S. Cellular, is a mobile network operator which owns and operates the fourth largest wireless telecommunications network in the United States, serving 5 million customers in 426 markets in 23 U.S. states as of the first quarter of 2017. The company is headquartered in Chicago, Illinois. Activations Just received the device you ordered from U.S. Cellular? Call U.S. Cellular® at 1-800-766-9811 to activate your device. Business and Government customers, please call 1-866-616-5591 to complete activation. Be sure to follow the manufacturer’s instructions provided with your device to prepare for activation before calling. This may include installing a battery and a SIM card. Just received a replacement device from a warranty or Device Protection + claim? Call 1-888-944-9400 to update your account and activate the device. My Account Through My Account, you will be able to complete these activities online whenever most