T-Mobile down: Why SOS mode is showing up on your phone
T-Mobile services appear to be disrupted on Monday as Downdetector reports tens of thousands of users experiencing service issues.

T-Mobile users appear to be experiencing disrupted service on Monday afternoon.
More than 25,000 users reported problems as of 4:40 p.m. ET Monday, according to Downdetector.
Shortly after the issues were reported on Downdetector, searches surged 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 if needed.
This is a developing story. More details will be provided as they become available.