0001283699 2026-03-26 2026-03-26 0001283699 tmus:CommonStockParValue0.00001PerShareMember 2026-03-26 2026-03-26 0001283699 tmus:A3.550SeniorNotesDue2029Member 2026-03-26 2026-03-26 0001283699 tmus:M3.700SeniorNotesDue20322Member 2026-03-26 2026-03-26 0001283699 tmus:A3.150SeniorNotesDue2032Member 2026-03-26 2026-03-26 0001283699 tmus:M3.200SeniorNotesDue20321Member 2026-03-26 2026-03-26 0001283699 tmus:M3.625SeniorNotesDue20355Member 2026-03-26 2026-03-26 0001283699 tmus:A3.850SeniorNotesDue2036Member 2026-03-26 2026-03-26 0001283699 tmus:M3.900SeniorNotesDue20383Member 2026-03-26 2026-03-26 0001283699 tmus:A3.500SeniorNotesDue2037Member 2026-03-26 2026-03-26 0001283699 tmus:A3.800SeniorNotesDue2045Member 2026-03-26 2026-03-26 0001283699 tmus:M6.250SeniorNotesDue20694Member 2026-03-26 2026-03-26 0001283699 tmus:A5.500SeniorNotesDueMarch2070Member 2026-03-26 2026-03-26 0001283699 tmus:A5.500SeniorNotesDueJune2070Member 2026-03-26 2026-03-26 false 0001283699 8-K 2026-03-26 T-MOBILE US, INC. DE 1-33409 20-0836269 12920 SE 38th Street Bellevue WA 98006-1350 425 378-4000 false false false false Common Stock, par value $0.00001 per share TMUS NASDAQ 3.550% Senior Notes due 2029 TMUS29 NASDAQ 3.700% Senior Notes due 2032 TMUS32 NASDAQ 3.150% Senior Notes due 2032 TMUS32A NASDAQ 3.200% Senior Notes due 2032 TMUS32B NASDAQ 3.625% Senior Notes due 2035 TMUS35 NASDAQ 3.850% Senior Notes due 2036 TMUS36 NASDAQ 3.900% Senior Notes due 2038 TMUS38 NASDAQ 3.500% Senior Notes due 2037 TMUS37 NASDAQ 3.800% Senior Notes due 2045 TMUS45 NASDAQ 6.250% Senior Notes due 2069 TMUSL NASDAQ 5.500% Senior Notes due March 2070 TMUSZ NASDAQ 5.500% Senior Notes due June 2070 TMUSI NASDAQ false