Thousands are experiencing disrupted service across the U.S. Here's what we know so far.  By   and  Timothy Beck Werth Timothy Beck Werth Tech Editor Timothy Beck Werth is the Tech Editor at Mashable, where he leads coverage and assignments for the Tech and Shopping verticals. Tim has over 15 years of experience as a journalist and editor, and he has particular experience covering and testing consumer technology, smart home gadgets, and men’s grooming and style products. Previously, he was the Managing Editor and then Site Director of SPY.com, a men's product review and lifestyle website. As a writer for GQ, he covered everything from bull-riding competitions to the best Legos for adults, and he’s also contributed to publications such as The Daily Beast, Gear Patrol, and The Awl. Read Full Bio  on July 27, 2026 Credit: Photo illustration by Cheng Xin/Getty Images

Updated on July 27 at 6:43 p.m. ET — T-Mobile posted a statement on X acknowledging "technical challenges impacting some customers." The company didn't provide any additional information about the cause of the problem.

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Updated on July 27 at 6:25 p.m ET — T-Mobile still hasn't said anything about the ongoing outage affecting many of its mobile customers in the United States. In the meantime, many T-Mobile users are going to X and Reddit to complain.

A post on Reddit about the outage already has more than 5,500 comments, and users are trading rumors about the possible cause of the T-Mobile outage, as well as potential fixes. We'll continue to update this post as this story develops.

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As of this writing, Downdetector shows that thousands of users are still actively submitting error reports. In addition, Status Gator reports that the outage is nationwide, with T-Mobile-connected providers like Mint Mobile and Boost Mobile also experiencing problems.

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Updated on July 27 at 5:47 p.m. ET — Users on X are still complaining about a T-Mobile outage, and the topic is currently trending. However, user error reports on Downdetector have slowed since reaching a peak at 4:58 p.m. ET.

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So far, T-Mobile still hasn't acknowledged any network problems.

T-Mobile users appear to be experiencing disrupted mobile service on Monday afternoon.

More than 64,000 users reported problems as of 5:15 p.m. ET, according to Downdetector. User error reports started to spike at 3:48 p.m. ET, and as of this writing, they're continuing to climb. The majority of users either listed the problem as "no signal," or simply "mobile phone."

Credit: Screenshout courtesy of Downdetector SEE ALSO: T-Mobile is giving away the Apple iPhone 17 for free — how to qualify

Shortly after the issues were reported on Downdetector, searches surged on Google for SOS mode, which can appear on devices when service is disrupted. SOS mode means your phone should still be able to make emergency calls via satellite if needed.

On X, dozens of users complained of an outage, with some users specifically complaining about SOS mode.

A Mashable editor provided this screenshot of their phone stuck in "SOS Mode." Credit: Mashable

Mashable reached out to the company, and we'll update this story if we receive a response.

This is a developing story. More details will be provided as they become available.

Eric Miller

Eric Miller is the editorial director of Mashable.

Timothy Beck Werth Tech Editor

Timothy Beck Werth is the Tech Editor at Mashable, where he leads coverage and assignments for the Tech and Shopping verticals. Tim has over 15 years of experience as a journalist and editor, and he has particular experience covering and testing consumer technology, smart home gadgets, and men’s grooming and style products. Previously, he was the Managing Editor and then Site Director of SPY.com, a men's product review and lifestyle website. As a writer for GQ, he covered everything from bull-riding competitions to the best Legos for adults, and he’s also contributed to publications such as The Daily Beast, Gear Patrol, and The Awl.

Tim studied print journalism at the University of Southern California. He currently splits his time between Brooklyn, NY and Charleston, SC. He's currently working on his second novel, a science-fiction book.