 Americans abroad were hit with a huge phone outage. Many U.S. customers of AT&T, T-Mobile, and Verizon traveling out of the country could not make calls or send messages yesterday. A Verizon spokesperson told CNN that 30% of its overseas customers' data connections were not going through as of last night. The company blamed a third-party provider, Cineverse, that manages international roaming. Cineverse confirmed it was working to restore full service data.