T-Mobile US, Inc. is engaged in providing wireless communications services. The Company provide wireless services to postpaid, prepaid and wholesale customers. It also provides wireless communications services to these customers, as well as a selection of wireless devices and accessories. It provides service, devices and accessories across its flagship brands, T-Mobile, Metro by T-Mobile and Sprint, through its owned and operated retail stores, as well as through its Websites, T-Mobile app and customer care channels. In addition, the Company sells devices to dealers and other third-party distributors for resale through independent third-party retail outlets and a variety of third-party Websites.