Despite that, the DOJ said it closed its investigation into the merger and will not ask a court for an injunction to prevent ...

In an exclusive chat with T-Mobile executives before the announcement, I learned which moves took the carrier from No. 4 to the top.

AT&T has launched a new security feature called "Wireless Lock" that protects customers from SIM swapping attacks by preventing changes to their account information and the porting of phone numbers ...