T-Mobile Adopts Account-Level Reporting, Posts 217K Net Additions, $151.93 ARPA
TMUS•In Q1 2026 T-Mobile replaced ARPU with ARPA, reporting only account-level revenue and dropping line counts and prepaid metrics. It added 217,000 postpaid net accounts, a 6% YoY rise, and delivered ARPA of $151.93, up 3.9% YoY.
1. Adoption of Account-Level Metrics
T-Mobile discontinued per-user revenue reporting and consolidated service metrics into account-level figures under its new ARPA framework. The company also ceased disclosing line-level counts and prepaid service stats, opting for a higher-level view of its customer base.
2. Q1 2026 Postpaid Growth
The new reporting showed 217,000 postpaid net account additions in Q1 2026, marking a 6% year-over-year increase. Postpaid ARPA reached $151.93, up 3.9% year-over-year, reflecting stronger revenue per account under the revised structure.
3. Investor Transparency Impact
The shift obscures traditional ARPU trends and line-level dynamics, complicating comparisons with peers and past periods. Analysts may face challenges assessing legacy broadband and prepaid performance, potentially increasing estimate dispersion and valuation uncertainty.
