T-Mobile is expanding its retail business Through a new deal with Walmart This has doubled its share of large national retailers. The wireless operator will be launched in 2,300 stores across the United States, in addition to Walmart.com, will also sell T-Mobile and Metro through T-Mobile products. T-Mobile touted this move as part of its promise to expand 5G access. The company is getting rid of a major data breach.T-Mobile’s equity changed hands last week In exchange transactions Between Deutsche Telekom and Softbank.