T-Mobile moved on Tuesday to further disrupt the mobile services market by offering customers the opportunity to roll over unused monthly data, a first for a major carrier.
CEO John Legere told CNBC's "Power Lunch" that the plan is meant to attack one of the most infuriating aspects of cellular service: how carriers handle the purchase of data.
"This is a $50 billion issue, where carriers are taking back on average 3 gigabytes of data a month per 100 million customers," he said.
T-Mobile customers will be eligible for the program, called Data Stash, beginning in January. The carrier will give every qualifying line 10 gigabytes of 4G LTE data to start.
The carrier's aggressive pricing policies have contributed to a climate in which major carriers are increasingly offering discounts in a bid to win or keep customers.
Asked whether investors should be concerned about T-Mobile's profitability, Legere said the company is the fastest-growing wireless company in the United States.
T-Mobile posted lower-than-expected earnings in the third quarter, turning in a 12-cent-per-share loss on revenues of $7.35 billion. Shares of T-Mobile US are down about 18 percent over the last three months.