Sprint is a holding company. Through its subsidiaries, the company is a communications company providing wireless and wireline communications products and services to consumers, businesses, government subscribers, and resellers. The company has two segments: Wireless, which provides wireless services on a postpaid and prepaid payment basis to retail subscribers and also on a wholesale basis, including the sale of wireless services that utilize the company's network but are sold under the wholesaler's brand; and Wireline, which provides a suite of wireline communication services to other communications companies and targeted business customers, as well as voice, data and internet protocol communication services.

T-Mobile US provides mobile communications services, including voice, messaging and data, under its brands, T-Mobile and Metro? by T-Mobile, in the United States, Puerto Rico and the United States Virgin Islands. The company provides mobile communications services using its 4G Long-Term Evolution network and its 5G technology network. The company also provides various wireless devices, including handsets, tablets and other mobile communication devices, and accessories for sale, as well as financing through Equipment Installment Plans and leasing through JUMP! On Demand?. The company provides reinsurance for handset insurance policies and extended warranty contracts offered to its mobile communications customers.