Reported 9 months ago
Major US telecom service providers, including Verizon, AT&T, and T-Mobile US, acknowledged that some of their customers traveling abroad were facing connectivity problems due to issues with a partner network provider, identified as Syniverse. While Verizon reported that 70% of their customers' calls and data connections were unaffected, AT&T stated that disruptions were occurring outside of their network. Syniverse confirmed experiencing intermittent connectivity issues and was collaborating with network partners to resolve the problem.
Source: YAHOO