On Monday, a widespread T-Mobile US Inc.

(NASDAQ:TMUS) outage disrupted mobile service for thousands of customers across the U.S., prompting the carrier to acknowledge the issue after hours of mounting complaints.

T-Mobile Customers Report Widespread Service Disruptions T-Mobile customers across the U.S. reported losing mobile service in the afternoon.

Outage-tracking platform Downdetector began showing a spike in T-Mobile outage reports around 4 p.m.

ET, with more than 140,000 users reporting issues.