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TELEPHONE & DATA SYSTEMS INC /DE/

For the period ended Dec 31, 2025. Filed Feb 24, 2026.

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A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2025 · Filed Feb 24, 2026

TDS$32.87+1.6%Stored close · as of Nov 6, 2026

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Contents

Item 2. Properties

TDS has properties located throughout the United States. As of December 31, 2025, the gross investment in property, plant and equipment was $5,962.3 million at TDS Telecom, $1,079.0 million at Array and $80.8 million at Parent & Other.

As of December 31, 2025, Array owns 4,450 towers in 19 states. These sites are primarily located in New England, the Mid-Atlantic, the Midwest and Great Plains, and the Pacific Northwest. Array's portfolio consists of monopole, self-support (lattice), and guyed towers. Array’s corporate headquarters is located in Chicago, IL.

TDS Telecom owns or leases its physical assets consisting of cable and telephone distribution networks, headends, network electronic equipment, customer premise equipment, land and buildings. TDS Telecom's corporate headquarters is located in Madison, WI.

Parent and Other fixed assets consist of assets, which are either owned or leased, at TDS Corporate and Suttle-Straus.

See Note 10 — Property, Plant and Equipment in the Notes to Consolidated Financial Statements for additional information.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.