SEC Exhibit 21Company filing
T-Mobile US, Inc. Exhibit 21 — Subsidiaries
T-Mobile US, Inc. · Feb 11, 2026
Company-filed list of significant subsidiaries. The filing may omit subsidiaries that are not considered significant under SEC rules.
TelecommunicationsPaper Trail research
T-Mobile US, Inc.
T-Mobile US, Inc. is an organization in the Telecommunications sector. Paper Trail tracks its public-money, lobbying, campaign-finance, corporate, and People relationships where supported by public records.
At a Glance
Highlights from available records. Missing information does not mean an activity did not occur.
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Why It Is Included
Included as a major institution relevant to Paper Trail research; individual public-record connections appear only when sourced.
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Important Documents
Selected filings, reports, contracts, court records, and other documents useful for understanding this organization.
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Cite this page
The Paper Trail Project. “T-Mobile US, Inc..” Accessed November 7, 2026. https://www.papertrailproject.org/profiles/t-mobile-us
Record last updated 2026-09-02. Sources: Official organization website. Verify consequential claims against the linked original records.