TELEPHONE & DATA SYS INC

Business Model and Scope

Telephone and Data Systems is now principally a controlled holding company for two communications businesses. Wholly owned TDS Telecom supplies broadband, video, voice, and mobile-virtual-network services through fiber, coaxial, and copper networks in 30 states. TDS also owned 82.0% of publicly traded Array Digital Infrastructure at December 31, 2025 and controlled 95.9% of its combined voting power. Array owns 4,450 towers in 19 states, leases space and ancillary services, holds minority interests in wireless operators, and retained certain spectrum licenses.

This is not the same company shown in the earlier filings. On August 1, 2025, the former UScellular sold its wireless operations and selected spectrum to T-Mobile. Consideration was $4.294 billion after adjustments: $2.629 billion of cash and $1.665 billion of debt assumed through an exchange offer. The sold operations are discontinued operations. Separate spectrum sales to AT&T, Verizon, and T-Mobile turn additional assets into cash, subject to closing conditions where applicable.

Continuing 2025 revenue was $1.228 billion: $1.038 billion at TDS Telecom, $163 million at Array, and $27 million elsewhere before eliminations. The continuing company is therefore a capital-intensive broadband operator plus a majority interest in a tower-and-spectrum vehicle, not a diversified wireless carrier.

Customers and Purchasing Decisions

TDS Telecom had 1.1 million broadband, video, voice, and wireless connections at year-end. Residential customers buy reliable internet access, whole-home Wi-Fi, video, voice, and an outsourced wireless offering; commercial customers buy broadband and hosted communications; wholesale customers and government programs pay for network access or service in high-cost areas. Broadband is the anchor. Video and legacy voice connections are structurally declining as customers substitute streaming, mobile, and internet-based communications.

The customer’s willingness to pay depends on speed, reliability, local service, and the availability of alternatives at a specific address. Fiber can provide up to 8 Gbps residential and 10 Gbps at selected business locations, while copper capabilities can be materially lower. This geographic asymmetry matters: a household with one credible high-speed provider has less bargaining power than one reached by cable, fiber overbuilders, fixed wireless, and satellite.

Array’s customer set is concentrated among T-Mobile, AT&T, Verizon, and other network operators. Tower leases have long terms and escalators, and moving installed radio equipment is costly. Yet national carriers possess substantial bargaining power because each represents many potential colocations. T-Mobile’s commitment to 2,015 site leases under the master license agreement supports occupancy, but it also links Array’s economics to a former operating counterparty.

Profit Creation and Value Capture

TDS Telecom creates profit when recurring broadband and bundled-service revenue exceeds network operations, content, customer service, selling costs, and depreciation on the access network. Fiber economics depend on penetration: construction costs are largely incurred before revenue, while adding a customer to a passed address has lower incremental cost. Higher density, take rates, and customer retention spread fixed network cost over more connections. Suppliers of electronics, construction, programming, backbone capacity, and outsourced wireless service capture part of the economics; video content owners can capture price increases that TDS cannot fully retain.

Array creates profit differently. A tower can host several tenants with limited incremental structural cost. Rental revenue and contractual escalators therefore can produce high incremental margins after ground rent, maintenance, utilities, property tax, insurance, and administration. About 18% of tower sites were on owned land or perpetual easements; more than 65% of leased-land towers had at least ten years remaining, reducing near-term renewal risk. Additional tenants capture unused vertical capacity without duplicating the tower.

The 2025 numbers include substantial transition noise. TDS Telecom generated $330 million of segment adjusted EBITDA but only $20 million of operating income after depreciation and other charges. Array generated $194 million of segment adjusted EBITDA yet a $93 million operating loss. Consolidated continuing operations had a $97 million operating loss and $89 million of pre-tax income only after $176 million of equity-method earnings, $69 million of imputed spectrum-lease income, interest, and other items. Profit therefore came more from minority holdings and transaction-linked assets than from consolidated operating margins. Common shareholders also do not own 100% of Array’s economics.

Industry Structure and Capital Cycle

Broadband competition is local and technology-dependent. TDS faces cable operators, incumbent telephone companies, fiber overbuilders, fixed-wireless carriers, satellite providers, and municipal or subsidized networks. Customers can substitute mobile connectivity for some fixed service and streaming for video. Equipment and construction labor influence build cost; content providers have bargaining power in video; government programs can change the return on rural builds.

Entry requires substantial upfront construction, rights-of-way, permits, and customer acquisition, but public subsidies and low marginal servicing cost can encourage duplicate networks. The capital cycle is therefore harsh when several providers build the same neighborhood: all incur sunk cost, price competition rises, and no operator reaches the expected penetration. TDS’s fiber strategy is attractive only where address density, build cost, and achievable share support the investment. In 2025 TDS Telecom spent $406 million on capital expenditures against $1.038 billion of segment revenue, illustrating the cash intensity.

Tower entry is constrained by zoning, site acquisition, structural engineering, and carriers’ preference for established locations. Substitutes include rival towers, rooftops, small cells, and network sharing. Array’s low tenancy creates operating leverage but is also evidence that capacity is underused. Mobile data growth can increase equipment demand, while carrier consolidation or network rationalization can remove sites. Ground landlords and large carriers divide the economics with the tower owner.

Sources and Durability of Competitive Advantage

TDS Telecom’s potential advantage is local network position, not national scale. A fiber connection is physically costly to replicate, and a well-operated local network can combine reliable service, community familiarity, and bundled products. Central monitoring, equipment standardization, and a 400-gigabit core can improve reliability and unit cost. The advantage weakens wherever a larger cable or fiber competitor has comparable speed and better marketing scale.

Array benefits from scarce permitted locations and tenant switching costs. More than one-third of its towers reportedly had no competing structure within two miles, and existing tenants face expense and service risk when relocating equipment. Long leases and escalators make cash flows more predictable. However, Array ranks only fifth among U.S. tower owners and relies on a few sophisticated customers; low tenancy means opportunity, not proof of demand.

Contrary evidence is material. TDS’s consolidated revenue and profit deteriorated before the wireless sale: total operating income fell from $261 million in 2021 to $122 million in 2022 and a $414 million loss in 2023, affected by major impairments. The 2025 fiber segment’s operating income fell sharply from 2024. Durable advantage should appear as stable broadband penetration, low fiber churn, rising revenue per connection, tower colocations, and returns above build cost—not merely expansion of physical assets.

Operating System and Strategic Trade-offs

TDS Telecom builds and maintains access networks, markets locally through digital, direct, retail, agent, and door-to-door channels, and operates continuous network-management centers. Its multiyear IT modernization program aims to simplify customer interactions and reduce cost. Execution requires coordinating construction, permits, equipment, field service, billing, cybersecurity, and customer support across dispersed markets.

Array’s operating task is narrower: administer master leases, add colocations, maintain structural capacity, manage ground leases, and complete spectrum dispositions. It must integrate T-Mobile’s 2,015 committed site leases while handling interim terminations and winding down legacy wireless functions. Wind-down selling and administrative costs were expected to persist at a declining rate, so near-term reported margins do not yet represent a steady-state tower company.

The holding-company structure adds friction. TDS cannot directly access Array cash; value reaches TDS through dividends or other approved transfers, and public minority owners share Array distributions. Voting control is also concentrated: trustees of the TDS Voting Trust hold more than half the power to elect TDS directors. Operating performance should therefore be assessed separately at TDS Telecom, Array, and the parent rather than inferred from consolidated cash.

Financial Resilience

The wireless sale materially reduced leverage. In August 2025 TDS repaid $781 million of unsecured term loans and $300 million of secured term debt; Array repaid $713 million of unsecured loans and $150 million of export-credit debt, then borrowed $325 million under a term loan. At year-end, TDS and Array had almost all of their $400 million and $100 million revolvers undrawn. TDS subsequently repaid a remaining $150 million export-credit loan in January 2026.

Liquidity is nevertheless segmented. Array’s January 2026 AT&T spectrum sale produced $1.018 billion, with an estimated $130 million cash tax obligation, then funded an $885.5 million special dividend; TDS received $725.6 million. Pending proceeds depend on regulatory approvals and contractual adjustments. Spectrum is nonrecurring, and distributions reduce the asset cushion.

The continuing fiber business faces heavy capital needs for expansion and E-ACAM obligations. Declining operating cash, cost overruns, weaker government support, covenant pressure, or reduced distributions from minority wireless interests could constrain funding. Resilience improved after asset sales, but the enduring test is whether broadband and tower cash flows fund maintenance, growth, parent costs, dividends, and debt service without further asset liquidation.

Capital Allocation and Shareholder Outcomes

Historically, TDS reinvested heavily in wireless and wireline networks while paying dividends. The retained filings show capital expenditures of $1.201 billion in 2021, $1.285 billion in 2022, $1.197 billion in 2023, and $906 million in 2024 across the former group. Returns were uneven, culminating in impairments and the wireless sale. That history argues for judging new fiber builds by realized cash return rather than homes passed or headline speeds.

The sale converted operating assets into debt reduction and distributions. Array paid a $23.00-per-share special dividend in August 2025 and $10.25 in February 2026. TDS paid quarterly dividends of $0.04 per share in 2025 and authorized an additional $500 million repurchase capacity in November. These actions can transfer realized value to owners, but only after taxes, transaction costs, minority claims, and the capital needs of retained businesses.

Future allocation must choose among fiber construction, tower ground purchases, acquisitions, debt reduction, and shareholder returns. The appropriate metric is growth in free cash flow per TDS share after full fiber capital expenditure and after recognizing that 18% of Array belongs to outside holders. A special dividend is a liquidation of accumulated value, not recurring earning power.

Legal and Regulatory Exposure

TDS Telecom depends on federal, state, and local communications rules, franchises, rights-of-way, privacy obligations, and support programs. E-ACAM support extends through 2038 but requires specified broadband deployment; failure to meet obligations could reduce support or require repayment. Rate, interconnection, universal-service, and pole-access decisions can change economics. Network outages and cybersecurity incidents can create customer, regulator, and reputational costs.

Array’s tower builds and modifications require zoning, environmental, aviation, and structural compliance. Ground-lease disputes or expirations can threaten particular sites. Spectrum sales require Federal Communications Commission approval, and closing delays affect proceeds and distributions. The T-Mobile transaction retains purchase-price adjustments, transition agreements, and potential post-closing claims. Ordinary litigation and tax allocation between continuing and discontinued operations add uncertainty that cannot be reduced to a single reserve estimate.

Conclusion, Uncertainties and Disconfirming Evidence

TDS has exchanged a subscale wireless operating business for a simpler but still transitional portfolio: local broadband networks, a controlled tower company, minority wireless interests, spectrum-sale receivables, and cash. Broadband can create durable local economics when fiber penetration is high; towers can add tenants at attractive incremental margins. Those mechanisms are credible but not yet cleanly visible in consolidated earnings.

The strongest facts are reduced debt, contracted tower leases, difficult-to-replicate physical networks, and recurring broadband demand. The counterweights are declining legacy services, intense local overbuilding, capital-heavy fiber expansion, carrier concentration, parent overhead, and noncontrolling interests. Much of 2025 income and liquidity came from dispositions, imputed leases, and equity-method holdings rather than the retained consolidated operations.

The thesis would be invalidated by fiber builds that fail to earn their cost of capital, sustained broadband losses to cable or fixed wireless, falling tower tenancy after T-Mobile integration, material ground-lease losses, or parent spending that absorbs sale proceeds without raising per-share cash generation. It would strengthen if TDS Telecom produces positive free cash flow after expansion capital, Array converts low tenancy into colocations without disproportionate cost, and the parent returns or invests remaining proceeds transparently. The central uncertainty is no longer whether wireless can recover; it is whether management can turn asset-sale value into durable, per-share economics in the smaller company.

Business quality does not by itself establish investment attractiveness; valuation depends on the price paid and the expectations embedded in it.