T-Mobile Layoffs - WARN Act Notices

T-Mobile has a WARN Act filing history stretching from June 2020 to June 2026, with 8 notices affecting 1,156 employees in total. Filings are concentrated in Kansas (3) and Hawaii (2), with additional notices across 3 other states. Notices include 7 layoffs and 1 facility closure. The largest single filing affected 393 employees (April 2026).

Under the WARN Act (Worker Adjustment and Retraining Notification Act), employers with 100 or more employees are required to provide 60 days advance notice before conducting plant closures or mass layoffs. These notices are filed with state labor departments and are public record.