This economic principle could help T-Mobile's CEO.
AT&T's moves in Mexico could propel it above Verizon Wireless and end up being a revenue driver for the company.
T-Mobile's Simply Prepaid plans will help the company keep its No. 1 prepaid carrier title.
Americans pay hefty prices for their data compared to rest to the world. Here's how much we use.
The CEO of the company that owns a controlling interest of the wireless carrier appears to think so.
The telecom feels the heat from hungry challengers Sprint and T-Mobile and may have a hard time defending its rich profit margins in 2015 and beyond.
AT&T shareholders would love a bounce back from 2014's disappointing returns. Here are three large risks that may derail the stock again.
The beleaguered carrier has big plans for turning itself around this year.
The company has a new plan, but it may not be a game-changer.
T-Mobile's churn rate is still higher than AT&T's and Verizon's. Why?