T-Mobile (TMUS.O) was down for thousands of users in the U.S. on Monday, according to Downdetector.com.
The wireless carrier's service outage began around 04:00 p.m. ET, with more than 62,000 incidents reported countrywide at its peak before the number fell to about 21,200 by 6:05 p.m., Downdetector showed.
The actual number of affected users may differ from what's shown on Downdetector, which tracks outages by collating status reports from a number of sources.
T-Mobile said in a statement to Reuters that it was actively working on the reports of technical challenges impacting some customers, but did not provide a reason for the outage.
Users on social media reported being stuck in "SOS" mode. They flagged the services being down across multiple U.S. states, including Arizona, California, Georgia and Utah.
