A fresh ranking of telecom giants by market cap puts China Mobile on top at $229 billion. Verizon lands second with $193B, and T-Mobile isn't far behind at $191B. AT&T sits fourth at $162B, with Deutsche Telekom just a…
AT&T
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A AT&T é uma enorme empresa de telecomunicações americana, nascida do desmembramento do monopólio original do Bell System.
