T-Mobile Retires Old Plans, Shifts Customers to Newer, Slightly More Expensive Options

T-Mobile is retiring its oldest mobile plans—some dating back up to 15 years—and moving affected customers to newer plans, with an average price increase of about $4 per line (though some may see no change). Affected users will be emailed with two weeks’ notice before the switch, which will occur in mid-July. The company says customers will keep their current benefits while gaining improved network features and a 5-year price guarantee, but it has not disclosed exactly which plans are affected or which new plans they’ll be moved to.