AT&T's mobile 5G network will expand to three new cities this year. Folks in two of North Carolina's biggest population centers -- Charlotte (above) and Raleigh -- and those in Oklahoma City will have access to the faster wireless signal. Previously, it announced Atlanta, and Dallas and Waco in Texas. "We're deliberately launching with a mix of big and mid-sized cities," AT&T said in a press release. "All Americans should have access to next-gen connectivity to avoid a new digital divide."