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While all of the big four carriers fared well in calls and text, Verizon provided the best data experience in 2012.
Stuck in an airport with an extra-long layover? One wireless-testing firm weighs in on which carrier will keep you going on your smartphone.
The Uncarrier has the most to win or lose in next year's spectrum auction, including whether it has a chance to be a true competitor to Verizon Wireless and AT&T.
Its pitch to consumers pays off with a gain of 1.2 million customers to hold T-Mobile at bay. Still, Sprint's aggressive promotions have also brought mounting losses.
US wireless operators are revving their marketing machines to persuade customers to switch carriers. How do you separate the hype from the reality? CNET's Marguerite Reardon offers some advice.
The carrier says its new map of network coverage uses real-time data and will be updated every two weeks.
"I wouldn't rule it out," John Legere says about emulating Sprint's leasing model, but adds that there are no plans to roll one out in the near future.
The company's new campaign will run through the "March Madness" college basketball tournament.
The latest test by RootMetrics shows how the big are getting better. But small carriers Sprint and T-Mobile are making solid progress.
The wireless carrier expects the momentum to continue into 2015, but it will have to reckon with the costs of its Data Stash program.