AT&T, T-Mobile and Verizon confirmed to CNN that their customers are experiencing intermittent issues while traveling overseas. “We’re one of several providers impacted by a third-party vendor’s issue that is intermittently affecting some international roaming service,” a T-Mobile spokesperson told CNN. “We’re working with them to resolve it.”Meanwhile, Verizon told CNN about 30% of its customers’ calls and data connections from overseas are not going through right now. The issue stems from an international third-party communications provider called Syniverse, which manages international roaming connections for various carriers. “Since the onset of these issues, Syniverse has been working closely with our network partners to restore full service,” the statement said.

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Persons: “, Syniverse, CNN’s Jordan Valinsky Organizations: CNN, Mobile, Verizon