In an exclusive chat with T-Mobile executives before the announcement, I learned which moves took the carrier from No. 4 to the top. Jeff Carlson writes about mobile technology for CNET. He is also ...

Last week T-Mobile announced that it's been named the Best Mobile Network in the US by Ookla, marking the first time the carrier has taken the overall top spot. That's based on half a billion ...

When it succeeds 5G in 2030, the next-gen mobile network will focus on upload speeds, AI, and radar-like “sensing” of vehicles, devices, and people. 5G came with many promises. Remote surgery, where ...