T-Mobile has a WARN Act filing history stretching from June 2020 to April 2026, with 7 notices affecting 1,105 employees in total. Filings are concentrated in Kansas (3) and Hawaii (2), with additional notices across 2 other states. All classified notices are layoffs. The largest single filing affected 393 employees (April 2026). Filing activity has slowed, with only 1 notice in the past 12 months.

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:

T-Mobile
TMobile

Layoff History

Employees affected over time

All WARN Act Notices

Location	Effective Date	Employees	Type
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

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