WARN ACT DATABASE — Data Updated Weekly

T-Mobile Layoffs - WARN Act Notices

1,156 Employees Affected
5 Locations
8 Notices Filed
Jun 8, 2026 Most Recent
Affected States: Colorado , Washington , Kansas , Hawaii , Kentucky

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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.

Filing Identities (2)

This page aggregates WARN Act notices filed under 2 related names:

Layoff History

Employees affected over time

All WARN Act Notices

Location Effective Date Employees Type
Denver, CO Jun 8, 2026 51 closure
Unknown, WA Apr 2, 2026 393 layoff
Unknown, KS Aug 31, 2020 74 layoff
Unknown, HI Jul 2, 2020 — layoff
Unknown, KS Jul 1, 2020 270 layoff
Unknown, KS Jun 17, 2020 241 layoff
Unknown, HI Jun 17, 2020 — layoff
Jefferson, KY Jun 16, 2020 127 layoff