go55Offer for adults age 55+ This plan is for new customers age 55 and older. Get the first for $75month, two s for $110month with AutoPay, with monthly taxes and fees included.On April 20th, 2025, T-Mobile announced three new cell phone plans: Essentials Savings, Go5G, and Go5G Plus. If you're an existing T-Mobile customer or thinking about sning up as a