https://www.reuters.com/article/us-t-mobile-us-results/t-mobiles-subscriber-boost-challenges-att-for-spot-as-second-largest-u-s-carrier-idUSKCN25230E

T-Mobile US Inc added more monthly phone subscribers than expected in the second quarter and said on Thursday it has overtaken rival AT&T Inc as the second-largest wireless provider in the United States.