US travelers suffer from AT&T, T-Mobile, and Verizon outage

It’s still being determined when Americans who travel abroad will get their mobile services working again.

From June 26th, American users of three mobile service providers, AT&T, T-Mobile, and Verizon, were left stranded without mobile services while traveling overseas.

Some travelers can barely, if at all, make calls, send messages, or use their cellular data as their careers experience occasional issues. AT&T, T-Mobile, and Verizon confirmed to CNN that the current situation is true.

The issues come from the same third-party vendor, Syniverse, that the mentioned companies rely on for international roaming services.

On June 27th, the company issued a press release admitting the problem, stating that they're "working around the clock to resolve this issue," and apologizing for any inconvenience.

In the press release, the company also states that it's not yet sure what caused the problem:

"Our technical teams are collaborating with our mobile network operator partners worldwide to identify and rectify the root cause of the disruption. We are deploying all necessary resources to restore regular service as quickly as possible. We will keep you updated as soon as we have more to share."

Syniverse continued communicating on its X (formerly Twitter) account. This allowed users to share their opinions on the situation online, with many expressing discontent.

"It's been two days and you don't know what's causing the issue? Wild," noted one of the X users as the company didn't provide any information on what could cause this situation.

Those who have been affected by the disruption said: "Did it really take over 24 hours for a comment on this? I am trapped in this nightmare and you just now speak out !!?"

"Ridiculous how long it's taken you to respond to this in any way. I hope some competitor comes along and crushes you with better tech and customer relations," wrote another upset X user.

[Updated on July 1st]

On June 29th, the company said that the problems with the mobile service outage were finally resolved. The reason for these disruptions was “misconfiguration errors at a peering partner outside of [Syniverse’s] network.” To solve this issue, the company had to block a “very limited number of peering partners who were producing excessive error loops” and upgrade “network capacity.”