Skip to main content
  1. Home
  2. Phones
  3. Mobile
  4. News

T-Mobile goes down: What caused Monday’s outage

Add as a preferred source on Google

Thousands of T-Mobile subscribers reported outages across the United States on Monday afternoon as a routing issue knocked out service for huge swaths of the country.

Around noon Pacific time on Monday, Down Detector showed almost 90,000 reports of a T-Mobile outage affecting most major U.S. cities. Nearly 70% of users were reporting they had lost a signal and Down Detector’s outage map revealed the reports were spread across the country.

Recommended Videos

In a note on the company’s blog Monday afternoon, CEO Mike Sievert wrote: “This is an IP traffic-related issue that has created significant capacity issues in the network core throughout the day.” He also noted that data services were still up and running.

A later tweet by the company’s T-Mobile Help Twitter account said a “widespread routing issue” was causing voice and texting problems.

The outage lasted for several hours through the afternoon, with services finally coming back online by 9:30 p.m. PT on Monday, according to a T-Mobile spokesperson.

“Thank you for your patience as we fixed the issues,” T-Mobile’s President of Technology Neville Ray said. “We sincerely apologize for any and all inconveniences.”

Digital Trends has reached out to T-Mobile again to ask how many people were affected in total. We will update the story when we hear back.

Users had flocked to social media as the outage dragged on, with some claiming a DDoS attack was responsible. However, Matthew Prince , CEO of website security comapny Cloudflare, dismissed the rumors, saying his company saw no signs of a coordinated attack.

His company’s findings showed no spike in traffic to major internet services, Prince wrote on Twitter.

“Our team knows the network operators at nearly all the other major internet services and platforms, and none of them are reporting anything anomalous,” Prince continued. “Don’t worry, this is one thing that does not need to get added to the list of craziness that has been 2020.”

Down Detector users also reported issues at AT&T, but a company spokesperson told Digital Trends that the network was still running as normal. More than 5,000 users also reported issues at Verizon at the outage’s peak, but a Verizon spokesperson said the network was unaffected and that reports may have been coming from Verizon customers who were trying to call T-Mobile users and encountering an error.

Want more news, reviews, guides, and features from Digital Trends? Follow us on Apple NewsGoogle News, and Flipboard.

Maya Shwayder
I'm a multimedia journalist currently based in New England. I previously worked for DW News/Deutsche Welle as an anchor and…
Apple says Lockdown Mode thwarted spyware attacks with a clean slate
Apple’s strongest defense is actually holding up
Lockdown Mode information page on an iPhone 14 Pro.

Apple says it has not seen a successful spyware attack on any iPhone with Lockdown Mode enabled, a claim it shared with TechCrunch.

Lockdown Mode arrived in 2022 as an opt-in feature for iPhone, iPad, and Mac. It was introduced as a stricter security mode for people at high risk of targeted attacks, such as journalists, activists, and government officials.

Read more
The Dynamic Island could shrink on the iPhone 18 series, and not just on the Pro models
One leaker, one claim, and a big question: is Apple genuinely ready to give every iPhone buyer the same design treatment as Pro owners this cycle?
Apple iPhone 17 Pro in Cosmic Orange leaning on a gray wall.

Apple’s Dynamic Island has been around long enough that most people have made their peace with it or forgotten it’s there. In fact, I’ve seen people associating the pill-shaped notch with newer iPhone models (released in the last 3 years). Now, a fresh leak suggests that the notch replacement is about to shrink, not just on the expensive models. 

What did the leaker actually say?

Read more
Apple Podcasts finally gets serious about video, adds multiple YouTube-inspired features
With offline downloads, Picture-in-Picture, and a dedicated video hub, iOS 26.4 turns Apple Podcasts into a platform creators can no longer afford to ignore.
Electronics, Phone, Mobile Phone

For years, the Apple Podcasts app supported video, at least it did technically, but nobody used it. Creators ignored it, while listeners forgot it. Meanwhile, other platforms like YouTube and Spotify quietly built empires on video podcasting. However, that changes with the iOS 26.4 update, or at least that is what Apple hopes for. 

Video podcasting exploded in popularity in recent years, with audiences gravitating toward platforms that treated the format well (as already mentioned above). Despite being an iPhone user, I personally consume podcasts on YouTube (I briefly paid for the Premium membership as well). 

Read more