Telephone and Data Systems, Inc. (TDS) Company Overview

Telephone and Data Systems, Inc. is a Chicago communications holding company listed on the NYSE under TDS. After selling UScellular’s wireless operations in August 2025, it is centered on TDS Telecom, a wholly owned broadband operator, and Array Digital Infrastructure, an approximately 82%-owned tower, investment and spectrum subsidiary. Its official investor-relations site frames the portfolio around connectivity infrastructure.

A focused broadband-and-infrastructure portfolio

TDS Telecom sells broadband, video, voice and mobile services to households, connectivity to businesses, and network access to wholesale customers. Array leases tower space, earns service fees and investment income, and monetizes retained spectrum. The latest Form 10-Q for the quarter ended March 31, 2026 defines this post-sale structure.

Recurring revenue comes from monthly communications subscriptions at TDS Telecom and contracted tower leases at Array. Broadband customers generally have monthly terms, whereas tower agreements are longer and often include escalators. Spectrum gains and special dividends can be large, but they are asset-monetization events rather than recurring operating revenue.

Q1 2026 revenue mix

Q1 2026 combined operating improvement with transaction gains. Continuing-operations revenue rose 7% to $309.5 million as Array growth offset a 3% TDS Telecom decline. Operating income of $143.8 million included a $150.9 million pretax spectrum gain; adjusted OIBDA rose 62% to $83.4 million and better reflects underlying activity.

The operating signal beneath the spectrum gain

Common shareholders received $127.3 million of Q1 2026 net income after preferred dividends, versus a $9.8 million loss a year earlier. TDS Telecom adjusted OIBDA fell 2% to $71.3 million, while Array improved to $17.8 million from a $17.4 million loss. Expansion-market residential revenue grew 27%.

Revenue has been rising since early 2025, but mix changed

The Q1 2026 earnings release reaffirmed telecom revenue guidance of $1.015-$1.055 billion, adjusted EBITDA of $310-$350 million and capex of $550-$600 million. Array guidance was $200-$215 million of revenue and adjusted EBITDA.

TDS’s history matters because each shift changed capital intensity and competitive exposure. The official TDS history begins with the 1969 formation and 1983 creation of U.S. Cellular; recent filings show the transition to a fiber-and-towers portfolio.

1. 1969
   TDS began with local telephone operations, establishing its community-market focus and incumbent networks.
2. 1983
   U.S. Cellular added a second capital-intensive platform and became the group’s largest strategic asset.
3. 2010s
   Cable and fiber expansion shifted the wireline thesis from declining voice to broadband speed and penetration.
4. 2024
   TDS agreed to sell wireless operations and spectrum to T-Mobile after scale disadvantages became decisive.
5. 2025
   The $4.294 billion transaction closed; UScellular became Array and retained towers, spectrum and investments.
6. 2026
   Array sold spectrum to AT&T and Verizon, paid special dividends, and TDS proposed acquiring its public minority.

The transformation creates a cleaner story and new trade-offs

A May 2026 proposal would exchange 0.86 TDS Common Shares for each publicly held Array share, simplifying reporting and public-company costs. The proposal announcement remained non-binding and requires special-committee, minority-holder and TDS shareholder approvals if definitive agreements are signed.

TDS Telecom is replacing shrinking copper, voice and video economics with fiber broadband. At March 31, 2026, its 561,900 residential broadband connections included 298,700 fiber, 179,100 cable and 84,200 copper connections. It built 40,000 marketable fiber addresses in Q1 and reached roughly 1.1 million, against a 2.1 million long-term target.

Fiber now represents more than half of residential broadband connections

Array’s economics depend on colocations, lease quality and tenant concentration

Array owned 4,452 towers and 4,290 colocations at March 31, 2026, a 0.96 tenancy rate excluding DISH. T-Mobile committed to at least 2,015 additional 15-year tower leases, up to about 1,800 interim sites and extensions on roughly 600 existing colocations. Interim leases remain cancellable tower by tower.

The balance sheet improved after the T-Mobile transaction, but Array cash is not automatically available to the parent. At March 31, 2026, consolidated cash was $1.367 billion, long-term debt was $672.7 million and TDS shareholders’ equity was $4.924 billion. Unused revolver capacity totaled about $499.4 million across TDS and Array.

Free cash flow is the key constraint

In 2025, continuing operations generated $338.3 million of operating cash flow but spent $390.5 million on property and equipment and $1.9 million on software, producing negative $54.2 million free cash flow. Q1 2026 operating cash flow was $68.1 million against $149.0 million of property-and-equipment spending.

The 2025 Form 10-K reported $151.1 million of continuing net income but a $75.5 million common-shareholder loss after discontinued operations and preferred dividends. Spectrum gains, impairments and tax items therefore require normalization.

TDS is controlled through two common-stock classes. Public Common Shares trade on the NYSE; Series A shares generally do not and carry ten votes each. At March 23, 2026, Series A held 56.7% of voting power and elected eight of twelve directors; Common elected four.

Control supports patience but reduces outside influence

Control can support patient fiber investment but limits outside influence over strategy and board composition. Walter C. D. Carlson became CEO in February 2025 and is executive chair and a voting-trust beneficiary. The 2026 proxy statement also discloses $14 million of 2025 legal expense with his former firm, Sidley Austin.

TDS lacks national scale in broadband and towers. Its competitive position rests on local network density, underserved and mid-sized markets, an expanding fiber footprint, service execution and tower locations that carriers need. The moat is therefore asset- and market-specific, not broad dominance.

Broadband rivalry is local and technology-dependent

The moat is strongest where sunk assets meet local demand

At March 31, 2026, 79% of the footprint could receive 1Gig+ service, 87% of broadband customers took at least 100 Mbps and 47% took 1Gig+ products. Product quality improved, but broadband churn rose to 1.8% from 1.3%, making retention and penetration the proof of network advantage.

Both operating businesses are asset-heavy. Fiber returns improve as more customers share the same network; tower returns improve as more tenants and amendments use the same site. Construction overruns, weak penetration or tenant losses can depress returns for years, so utilization matters more than product novelty.

Growth opportunities

TDS Telecom can build adjacent fiber clusters, improve penetration and shift users to faster tiers. A planned $25.4 million Granite State acquisition would add about 11,000 fiber addresses. Array can add colocations and monetize assets. June’s Verizon closing delivered $1.0 billion, May T-Mobile transactions added about $168 million, and Array declared an $11.00 special dividend in the official transaction release.

Risks with direct financial consequences

A consolidated multiple can obscure TDS. TDS Telecom is a build-and-penetrate broadband business whose terminal economics depend on penetration, pricing, churn and maintenance capex. Array is an infrastructure business driven by recurring leases, escalators, tenant credit, colocations and the value of remaining spectrum and investments.

The most important valuation adjustments

A sum-of-the-parts model can value normalized telecom cash flow separately from Array’s tower cash flow and identifiable assets, then deduct parent debt, preferred claims and corporate obligations. A consolidated DCF must model special dividends, spectrum taxes, noncontrolling interests and the timing of fiber-capex normalization.

TDS has completed one transformation and is pursuing another. The UScellular sale reduced debt and unlocked wireless and spectrum value. The remaining portfolio is clearer: TDS Telecom is expanding fiber, while Array converts towers, leases, investments and retained spectrum into cash flow.

The story now depends on operating conversion. For TDS Telecom, watch fiber addresses, net additions, penetration, churn and capex. For Array, watch tenancy, T-Mobile commitments, DISH collections, amendments and spectrum monetization. At the parent, cash accessibility, preferred dividends, voting control and the Array proposal determine how value reaches common shareholders.