The price hold applies to new customers signing up for the plans as well as current customers switching to one. T-Mobile is offering the same deals and pricing to new and existing subscribers. Also, the five-year deal applies to pricing; it's not a five-year plan commitment.

T-Mobile's prepaid unit unveiled four new plans on Tuesday that provide a five-year price guarantee and monthly charges as low as $25 per line, as the company seeks to shield its market share from competition amid economic uncertainty.

T-Mobile tips new Experience More and Experience Beyond plans that replace Go5G Next and Go5G Plus. There are also four new Metro by T-Mobile plans.