T-Mobile Beats Customer Estimates as CEO Promotes New Metric (1)

T-Mobile US Inc. beat Wall Street expectations for the number of new customer accounts it added in the first quarter, as a new chief executive officer looks to put his stamp on the company.

The Bellevue, Washington-based carrier added 217,000 new monthly accounts, a 6% year-over-year increase, compared with analysts’ estimates for 192,860. The company is no longer reporting changes in wireless customer additions, an initiative under CEO Srini Gopalan, who took over the top spot in November.

The company said the new metric better showcases its growth than mobile subscribers. T-Mobile is instead focused on tracking relationships that ...