AT&T to Record $4 Billion Costs on T-Mobile USA Deal Risks

AT&T to Record $4 Billion Costs on T-Mobile USA Deal Risks

Platt/Getty Images

Executives at AT&T attend a news conference in New York City. Combining AT&T and T-Mobile USA, the second and fourth-largest U.S. wireless providers respectively, would create a new market leader with 134 million customers, dethroning Verizon Wireless.