T-Mobile to auto-upgrade some legacy phone plans to higher-price plans

UPDATE: Jun. 29, 2026, 12:39 p.m. EDT This article has been updaded to add a statement from T-Mobile. If you've been quietly riding out an old T-Mobile plan for the last decade or so, that ride is about to end. T-Mobile is automatically migrating thousands of customers on legacy plans to its current lineup of plans, the company confirmed to CNET, with affected subscribers beginning to receive notification via text or the T-Life app today. The switch will take effect within the next few billing cycles and applies to both individual customers and some small businesses. (Disclosure: CNET and Mashable are both owned by the same parent company, Ziff Davis.) T-Mobile didn't specify which plans are being retired, but per CNET, a company representative said some stretch back 10 to 15 years, including Simple Choice, T-Mobile One, and grandfathered Sprint plans from the carrier's 2020 merger. Customers will be moved to comparable options within T-Mobile's current lineup, including Essentials, Experience More, and Experience Beyond. For some, that means a price increase, though T-Mobile chief marketing officer Allan Samson told CNET the new rate will still typically be lower than what a new c