The international roaming outage affecting AT&T, T-Mobile, and Verizon customers was caused by connectivity issues at Syniverse, a third-party provider that handles international roaming services for all three carriers. The disruptions began on Thursday morning, and Syniverse has been working with network partners to restore full service.
Syniverse has been working closely with network partners to restore full service since the onset of the connectivity issues. They understand the inconvenience caused and appreciate patience as they navigate the challenge. The company has implemented a security incident response plan and engaged a top-tier forensics firm to assist with an internal investigation.
AT&T, T-Mobile, and Verizon are addressing the international roaming outage by acknowledging the issue, stating that they are working with the affected third-party vendor, Syniverse, to resolve it. The carriers assure that they are working to restore service for customers and appreciate their patience during this time.