T Mobile US Inc T-Mobile (NASDAQ: TMUS) Announces 5 Year Deal With Ericsson and Nokia T-Mobile US, Inc. (NASDAQ: TMUS) has disclosed that it has entered into a 5-year agreement with Nokia (NYSE: NOK) and Ericsson (NASDAQ: ERIC). This 5-year multi-billion-dollar deal will make the nationwide 5G network of T-Mobile more powerful.