The additions could help Sprint grow its network in a cheap way as it jockeys for position among other national carriers. The addition lets Sprint and its smaller partners take advantage of each other's networks for roaming. Twenty-seven carriers that cover 565,000 square miles and more than 38 million people have now signed roaming agreements with Sprint.
The 27 partnerships could save Sprint approximately $1.9 billion in new cell phone towers and other infrastructure expenses that would be required to deliver 4G coverage to new areas, according to Reuters.
More than 35.8 million shares had changed hands as of 3:27 p.m., compared to the average volume of 19,988,800.S data by YCharts
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