The U.S. government awarded AT&T (T) - Get Report with a contract to build a nationwide wireless network to aid first responders during emergencies. 

The Department of Commerce's FirstNet division will give AT&T 20 megahertz of telecom spectrum in order to facilitate the network. 

AT&T shares closed trading up 0.75% to $41.76 per share. 

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This story has been updated since its original publish time at 11:31 am EST.