The Uncarrier does it again says this 5-year + very satisfied customer. Wayne Gerdes – CleanMPG – Aug. 9, 2017 T-Mobile CEO John Legere explains it with no BS. Unlimited 55+: 2 lines $60/mo. -- Unlimited for a generation of rule breakers. 55 yr old+ get 2 lines with unlimited talk, text and LTE data on America’s best unlimited network for $60/mo. taxes included, with AutoPay. Based off of T-Mobile ONE, the backbone of the Unlimited 55+ Plan, Video typically streams at DVD quality (480p). T-Mobile Unlimited: On all T-Mobile plans, during congestion, the small fraction of customers using >50GB/mo. may notice reduced speeds until next bill cycle due to data prioritization.