T-Mobile US, Inc. Layoff — October 2025
SOURCEOFFICIAL FILINGWashington State Employment Security Department· filed August 15, 2025View the filing ↗
What we know
Location: King County, WA (King County).
A WARN notice for this layoff is recorded on August 15, 2025.
Disclosed through an official WARN filing with the WA state workforce agency.
Summary
T-Mobile US, Inc. has announced the layoff of 121 employees in King County, Washington. This decision comes as part of the company's ongoing efforts to streamline operations and adjust its workforce in response to market conditions. The layoffs are effective immediately, impacting various roles within the organization. T-Mobile has not specified the departments affected by these job cuts, but the move reflects broader trends in the telecommunications industry as companies adapt to changing demands. The company aims to maintain its competitive edge while managing operational costs.
T-Mobile US, Inc. disclosed this layoff in an official WARN (Worker Adjustment and Retraining Notification) notice recorded by the WA state workforce agency on August 15, 2025. The notice covers 121 employees in WA (King County), with the layoff effective October 13, 2025.
That is roughly 0.2% of the 67,000 people T-Mobile US, Inc. employs.
LayoffTalk has tracked 31 layoff events at T-Mobile US, Inc. since October 2023, including 1,116 jobs documented in official WARN filings, with 21 additional events known from news reporting.
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