AT&T also reiterated its 2025 full-year guidance. AT&T is the second of the big three US telecom companies to report first-quarter results. T-Mobile US Inc. follows on Thursday.

Bellevue, Washington-based T-Mobile added 495,000 monthly bill-paying customers in the first three months of 2025, more than AT&T's additions, while Verizon lost subscribers in the period after ...