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'Data stash'? Why T-Mobile doesn't just call it rollover data

AT&T actually owns the use of the term "rollover" from its days when it rolled over minutes as Cingular Wireless.

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Roger Cheng Former Executive Editor / Head of News
Roger Cheng (he/him/his) was the executive editor in charge of CNET News, managing everything from daily breaking news to in-depth investigative packages. Prior to this, he was on the telecommunications beat and wrote for Dow Jones Newswires and The Wall Street Journal for nearly a decade and got his start writing and laying out pages at a local paper in Southern California. He's a devoted Trojan alum and thinks sleep is the perfect -- if unattainable -- hobby for a parent.
Expertise Mobile, 5G, Big Tech, Social Media Credentials
  • SABEW Best in Business 2011 Award for Breaking News Coverage, Eddie Award in 2020 for 5G coverage, runner-up National Arts & Entertainment Journalism Award for culture analysis.
Roger Cheng
2 min read

When you explain the concept of T-Mobile's Uncarrier 8.0 announcement, "Data Stash," it sounds an awful lot like a rollover program.

Remember Cingular? One of its claims to fame was the rollover minute. AT&T

That's what Yahoo's David Pogue called it -- several times -- during a webcast interview with T-Mobile CEO John Legere to discuss the announcement. Legere was quick to correct him.

Data Stash, which is available to any new or existing T-Mobile customer who signs up for a phone plan with 3 gigabytes of data or more, allows you to bank any unused data and use it the following month (up to 12 months). It's a modern equivalent to Cingular Wireless' popular rollover program, which let you move excess voice minutes from month to month.

If everyone already knows the concept as a rollover program, why doesn't T-Mobile just call it that? It turns out it can't.

AT&T actually still owns the rights to use the term "rollover." "We own equity in 'rollover' and we have for years," said a spokesman for the company.

T-Mobile, for its part, said it never planned to use the term.

"'Stash' is cooler," Legere said on a media conference call. "'Rollover' is such a 1980s term."

He added, "If you want to call it 'rollover,' that's OK."

Cool or not, the rollover program was a big hit for Cingular and helped it win recognition at a time when the carrier was fighting off fierce rivals such as Verizon Wireless and Sprint.

"That was a huge success for Cingular," T-Mobile Chief Marketing Officer Mike Sievert said in an interview. "They hung their entire hat on that."

The idea of rollover minutes is largely moot, with most programs offering unlimited voice minutes on wireless plans. The idea of rollover data, however, is new and, according to Sievert, a bit of a risk.

"No one's had the guts to do it on data," he said. "It's a big bet."