(Bloomberg) -- Suspicious behavior on T-Mobile US Inc.’s network devices tipped off the company to a breach that was potentially part of a sprawling cyber-espionage campaign that has raised ...

T-Mobile US Inc. shares fell after the company reported fewer new wireless phone subscribers than analysts expected in the first quarter. The carrier added 495,000 new monthly mobile subscribers ...

(Bloomberg) -- T-Mobile US Inc. was able to contain a recent network breach before it reached customers’ phones, according to ...

(Bloomberg) -- T-Mobile US Inc., the second-largest mobile carrier in the US, has agreed to buy US Cellular Corp.’s wireless operations and some of its spectrum assets for about $2.4 billion.

(Bloomberg) -- The government watchdog that oversees foreign investment in the US for the first time named a company it had penalized — telecom giant T-Mobile US Inc. — as it escalated ...

Bloomberg L.P. has named Oke Okaro global head of mobile for the Bloomberg Multimedia group. He discussed the company?s mobile strategy in an exclusive interview. Mr. Okaro will oversee all aspects of ...