AT&T deals are especially good if you're adding new lines, trading in, or switching carriers. With these offers, you can often save hundreds of dollars of the retail price of a new phone ...

Customers can get a new phone from AT&T when they purchase a plan or continue using their current one. AT&T Wireless offers a wide variety of plans for customers to choose from. These include both ...

Narayanan, V.G., and Joel L. Heilprin. "AT&T Versus Verizon: A Financial Comparison (Brief Case)." Harvard Business School Teaching Note 917-544, June 2017.

Narayanan, V.G., and Joel L. Heilprin. "AT&T Versus Verizon: A Financial Comparison, Spreadsheet for Students (Brief Case)." Harvard Business School Spreadsheet Supplement 917-545, June 2017.