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(Address of principal executive offices) (Zip code)

Registrant's telephone number, including area code: (312) 630-1900

The number of shares outstanding of each of the issuer's classes of common stock, as of March 31, 2024, is 106 million Common Shares, $.01 par value, and 7 million Series A Common Shares, $.01 par value.

The following discussion and analysis compares Telephone and Data Systems, Inc.’s (TDS) financial results for the three months ended March 31, 2024, to the three months ended March 31, 2023. It should be read in conjunction with TDS’ interim consolidated financial statements and notes included herein, and with the description of TDS’ business, its audited consolidated financial statements and Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A) included in TDS’ Annual Report on Form 10-K (Form 10-K) for the year ended December 31, 2023. Certain numbers included herein are rounded to millions for ease of presentation; however, certain calculated amounts and percentages are determined using the unrounded numbers. 

This report contains statements that are not based on historical facts, which may be identified by words such as “believes,” “anticipates,” “estimates,” “expects,” “plans,” “intends,” “projects,” “will” and similar expressions. These statements constitute and represent “forward looking statements” as this term is defined in the Private Securities Litigation Reform Act of 1995. Such forward looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results, events or developments to be significantly different from any future results, events or developments expressed or implied by such forward looking statements. See the disclosure under the heading Private Securities Litigation Reform Act of 1995 Safe Harbor Cautionary Statement elsewhere in this report for additional information.

The accounting policies of TDS conform to accounting principles generally accepted in the United States of America (GAAP). However, TDS uses certain “non-GAAP financial measures” in the MD&A. A discussion of the reasons TDS determines these metrics to be useful and reconciliations of these measures to their most directly comparable measures determined in accordance with GAAP are included in the disclosure under the heading Supplemental Information Relating to Non-GAAP Financial Measures within the MD&A of this report.

TDS’ mission is to provide outstanding communications services to its customers and meet the needs of its shareholders, its associates, and its communities. In pursuing this mission, TDS seeks to grow its businesses, create opportunities for its associates, support the communities it serves, and build value over the long term for its shareholders. Since its founding, TDS has been committed to bringing high-quality communications services to rural and underserved communities. TDS continues to make progress on developing and enhancing its Environmental, Social and Governance (ESG) program, including the publication of the most recent TDS ESG Report in July 2023, which is available on the TDS website.

TDS’ historical long-term strategy has been to re-invest the majority of its operating capital in its businesses to strengthen their competitive positions and financial performance, while also returning value to TDS shareholders primarily through the payment of a regular quarterly cash dividend. It is uncertain at this time how the strategic alternatives review for UScellular, TDS' available opportunities to reinvest in its businesses, or TDS' ongoing liquidity needs may impact TDS' long-term strategy, including with regard to the payment of dividends, in future periods.

TDS plans to build shareholder value by continuing to execute on its strategies to build strong, competitive businesses providing high-quality, data-focused services and products. Strategic efforts include:

▪UScellular offers economical and competitively priced service plans and devices to its customers and is focused on increasing revenues from sales of related products such as device protection plans and from services such as fixed wireless home internet. In addition, UScellular is focused on increasing tower rent revenues and expanding its solutions available to business and government customers. 

▪UScellular continues to enhance its network capabilities, including by deploying 5G technology. 5G technology helps address customers’ growing demand for data services and creates opportunities for new services requiring high speed and reliability as well as low latency. UScellular's initial 5G deployment in 2019-2022 predominantly used low-band spectrum to launch 5G services in portions of substantially all of its markets. During 2023, UScellular continued to invest in 5G with a focus on deployment of mid-band spectrum, which largely overlaps areas already covered with low-band 5G service. During 2024, UScellular is continuing the multi-year deployment of 5G mid-band spectrum. 5G service deployed over mid-band spectrum further enhances speed and capacity for UScellular's mobility and fixed wireless services.

▪UScellular assesses its existing wireless interests on an ongoing basis with a goal of maximizing the value of its assets and operational profitability. As part of this strategy, UScellular may seek attractive opportunities to acquire and divest wireless spectrum as deemed necessary.

▪TDS Telecom strives to provide high-quality broadband services in its markets with the ability to provide value-added bundling with video and voice service options. TDS Telecom focuses on driving growth by investing in fiber deployment primarily in its expansion markets and also in its incumbent and cable markets that have historically utilized copper and coaxial cable technologies.

▪TDS Telecom seeks to grow its operations by creating clusters of markets in attractive, growing locations and may seek to acquire and/or divest of assets to support its strategy.

On August 4, 2023, TDS and UScellular announced that the Boards of Directors of both companies have decided to initiate a process to explore a range of strategic alternatives for UScellular. During the three months ended March 31, 2024, TDS incurred third-party expenses of $11 million related to the strategic alternatives review. At this time, TDS cannot predict the ultimate outcome of such process or estimate the potential impact of such process on the financial statements.

The following is a list of definitions of certain industry terms that are used throughout this document:

▪4G LTE – fourth generation Long-Term Evolution, which is a wireless technology that enables more network capacity for more data per user as well as faster access to data compared to third generation (3G) technology.

▪5G – fifth generation wireless technology that helps address customers’ growing demand for data services and creates opportunities for new services requiring high speed and reliability as well as low latency.

▪Account – represents an individual or business financially responsible for one or multiple associated connections. An account may include a variety of types of connections such as handsets and connected devices.

▪Auction 107 – Auction 107 was an FCC auction of 3.7-3.98 GHz wireless spectrum licenses that started in December 2020 and concluded in February 2021.

▪Broadband Connections – refers to the individual customers provided internet access through various transmission technologies, including fiber, coaxial and copper.

▪Broadband Penetration – metric which is calculated by dividing total broadband connections by total service addresses.

▪Cable Markets – markets where TDS provides service as the cable provider using coaxial cable and fiber technologies.

▪Churn Rate – represents the percentage of the connections that disconnect service each month. These rates represent the average monthly churn rate for each respective period.

▪Connected Devices – non-handset devices that connect directly to the UScellular network. Connected devices include products such as tablets, wearables, modems, fixed wireless, and hotspots.

▪EBITDA – refers to earnings before interest, taxes, depreciation, amortization and accretion and is used in the non-GAAP metric Adjusted EBITDA throughout this document. See Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for additional information.

▪Enhanced Alternative Connect America Cost Model (E-ACAM) – a USF support mechanism for certain carriers, which provides revenue support through 2038. This support comes with an obligation to provide 100 megabits per second (Mbps) of download speed and 20 Mbps of upload speed (100/20 Mbps) to a certain number of locations.

▪Expansion Markets – markets utilizing fiber networks in areas where TDS does not serve as the incumbent service provider.

▪Free Cash Flow – non-GAAP metric defined as Cash flows from operating activities less Cash paid for additions to property, plant and equipment and less Cash paid for software license agreements. See Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for additional information.

▪Gross Additions – represents the total number of new connections added during the period, without regard to connections that were terminated during that period.

▪Incumbent Markets – markets where TDS is positioned as the traditional local telephone company.

▪IPTV – internet protocol television.

▪Net Additions (Losses) – represents the total number of new connections added during the period, net of connections that were terminated during that period.

▪OIBDA – refers to operating income before depreciation, amortization and accretion and is used in the non-GAAP metric Adjusted OIBDA throughout this document. See Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for additional information.

▪Postpaid Average Revenue per Account (Postpaid ARPA) – metric which is calculated by dividing total postpaid service revenues by the average number of postpaid accounts and by the number of months in the period.

▪Postpaid Average Revenue per User (Postpaid ARPU) – metric which is calculated by dividing total postpaid service revenues by the average number of postpaid connections and by the number of months in the period.

▪Residential Revenue per Connection – metric which is calculated by dividing total residential revenue by the average number of residential connections and by the number of months in the period.

▪Retail Connections – individual lines of service associated with each device activated by a postpaid or prepaid customer. Connections are associated with all types of devices that connect directly to the UScellular network.

▪Service Addresses – number of single residence homes, multi-dwelling units, and business locations that are capable of being connected to the TDS network, based on best available information.

▪Universal Service Fund (USF) – a system of telecommunications collected fees and support payments managed by the FCC intended to promote universal access to telecommunications services in the United States.

▪Video Connections – represents the individual customers provided video services.

▪Voice Connections – refers to the individual circuits connecting a customer to TDS' central office facilities that provide voice services or the billable number of lines into a building for voice services.

1Consists of corporate and other operations and intercompany eliminations.

2Refer to Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for a reconciliation of this measure.

3Refer to Liquidity and Capital Resources within this MD&A for additional information on Capital expenditures.

Refer to individual segment discussions in this MD&A for additional details on operating revenues and expenses at the segment level.

Equity in earnings of unconsolidated entities represents TDS’ share of net income from entities in which it has a noncontrolling interest and that are accounted for using the equity method or the net asset value practical expedient. TDS’ investment in the Los Angeles SMSA Limited Partnership (LA Partnership) contributed pre-tax income of $16 million and $20 million for the three months ended March 31, 2024 and 2023, respectively. See Note 6 — Investments in Unconsolidated Entities in the Notes to Consolidated Financial Statements for additional information.

Interest expense increased for the three months ended March 31, 2024 due primarily to borrowings under the TDS secured term loan and revolving credit agreements and interest rate increases on variable rate debt, partially offset by a decrease in the average principal balance outstanding on the receivables securitization agreement and higher capitalized interest. See Market Risk for additional information regarding maturities of long-term debt and weighted average interest rates.

Income tax expense increased for the three months ended March 31, 2024 due primarily to the increase in Income before income taxes.

TDS calculated income taxes for the three months ended March 31, 2024, based on an estimated year-to-date tax rate. The effective tax rates are expected to vary in subsequent interim periods in 2024 due to fluctuations in Income before income taxes.

Net income attributable to noncontrolling interests, net of tax includes the noncontrolling public shareholders’ share of UScellular’s net income, the noncontrolling shareholders’ or partners’ share of certain UScellular subsidiaries’ net income and other TDS noncontrolling interests.

*Represents a non-GAAP financial measure. Refer to Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for a reconciliation of this measure.

UScellular owns, operates, and invests in wireless markets throughout the United States. UScellular is an 83%-owned subsidiary of TDS. UScellular’s strategy is to attract and retain customers by providing a high-quality network, outstanding customer service, and competitive devices, plans and pricing - all provided with a community focus. 

▪Serves customers with 4.5 million retail connections including 4.1 million postpaid and 0.4 million prepaid connections

▪Operates in 21 states

▪Employs approximately 4,300 associates

▪Owns 4,382 towers

▪Operates 6,995 cell sites in service

Total postpaid handset net losses increased for the three months ended March 31, 2024, when compared to the same period last year due to lower gross additions as a result of continued aggressive industry-wide competition and a decrease in the pool of available customers.

Total postpaid connected device net additions increased for the three months ended March 31, 2024, when compared to the same period last year due to higher demand for fixed wireless home internet as well as a decrease in hotspot churn.

UScellular decommissioned its 3G Code Division Multiple Access (CDMA) network in the first quarter of 2024. Total net additions (losses) for the three months ended March 31, 2024 exclude a one-time adjustment to remove 11,000 connections that were dependent on the CDMA network.

Postpaid ARPU increased for the three months ended March 31, 2024, when compared to the same period last year, due to a decrease in promotional discounts, an increase in cost recovery surcharges, favorable plan and product offering mix, and an increase in device protection plan revenues.

Postpaid ARPA increased slightly for the three months ended March 31, 2024, when compared to the same period last year, due to the impacts to Postpaid ARPU, partially offset by a decrease in the number of connections per account.

1Refer to Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for a reconciliation of this measure.

2Refer to Liquidity and Capital Resources within this MD&A for additional information on Capital expenditures.

Retail service revenues decreased for the three months ended March 31, 2024, primarily as result of a decrease in average postpaid and prepaid connections, partially offset by an increase in Postpaid ARPU as previously discussed in the Operational Overview section.

Equipment sales revenues decreased for the three months ended March 31, 2024, due primarily to a decline in smartphone devices sold due to lower gross additions and upgrades, partially offset by a higher average price of new smartphone sales.

Wireless service providers have been aggressive promotionally and on price to attract and retain customers. This includes both traditional carriers and cable wireless companies. UScellular expects promotional aggressiveness by traditional carriers and pricing pressures from cable wireless companies to continue into the foreseeable future. Operating revenues and Operating income have been negatively impacted in current and prior periods, and are expected to be negatively impacted in future periods, by competitive promotional offers to new and existing customers.

Total operating expenses for the three months ended March 31, 2023, include $10 million of severance and related expenses associated with the second quarter of 2023 reduction in workforce. These severance expenses are included in System operations expenses and Selling, general and administrative expenses.

System operations expenses were flat for the three months ended March 31, 2024, due primarily to decreases in customer usage and employee expenses, which include the second quarter of 2023 reduction in workforce, partially offset by an increase in roaming expense. The increase in roaming expense was driven by an increase in usage partially offset by a decrease in roaming rates.

Cost of equipment sold decreased for the three months ended March 31, 2024, due primarily to a decline in smartphone upgrades and gross additions, partially offset by a higher average cost per unit sold.

Selling, general and administrative expenses decreased for the three months ended March 31, 2024, due primarily to decreases in employee-related expenses, which include the impact of the second quarter of 2023 reduction in workforce, commissions, and advertising expense, partially offset by a $7 million increase related to the strategic alternatives review expenses.

TDS Telecom owns, operates and invests in high-quality networks, services and products in a mix of small to mid-sized urban, suburban and rural communities throughout the United States. TDS Telecom is a wholly-owned subsidiary of TDS and provides a wide range of broadband, video and voice communications services to residential, commercial and wholesale customers, with the constant focus on delivering outstanding customer service.

▪Serves 1.2 million connections in 32 states TDS Telecom increased its service addresses 12% from a year ago to 1.7 million as of March 31, 2024 through network expansion.

▪Employs approximately 3,400 associates

Total residential broadband connections increased by 8,100 during the three months ended March 31, 2024, due primarily to net additions of 6,400 as well as certain other adjustments.

Total connections decreased due to legacy voice, video, and competitive local exchange carrier (CLEC) connections declines, partially offset by broadband connection growth.

A majority of TDS Telecom's residential customers take advantage of bundling options as 54% of customers subscribe to more than one service.

1Refer to Supplemental Information Relating to Non-GAAP Financial Measures within this MD&A for a reconciliation of this measure.

2Refer to Liquidity and Capital Resources within this MD&A for additional information on Capital expenditures.

Residential revenues increased for the three months ended March 31, 2024, due primarily to price increases and growth in broadband connections, partially offset by promotional activity and a decline in video and voice connections.

Commercial revenues decreased for the three months ended March 31, 2024, due primarily to declining connections in CLEC markets.

Cost of services decreased for the three months ended March 31, 2024, due primarily to a decrease in employee-related expenses and lower plant and maintenance costs, partially offset by higher video programming costs.

Selling, general and administrative expenses decreased for the three months ended March 31, 2024, due primarily to a decrease in employee-related expenses and lower advertising and marketing costs.

Depreciation, amortization and accretion increased for the three months ended March 31, 2024, due primarily to capital expenditures on new fiber assets and customer premise equipment.

TDS and its subsidiaries operate capital-intensive businesses. TDS incurred negative free cash flow in the three months ended March 31, 2024, has incurred negative free cash flow in prior periods, and may continue to incur negative free cash flow in future periods. In the past, TDS’ existing cash and investment balances, funds available under its financing agreements, preferred share offerings, and cash flows from operating and certain investing and financing activities, including sales of assets or businesses, provided sufficient liquidity and financial flexibility for TDS to meet its day-to-day operating needs and debt service requirements, to finance the build-out and enhancement of markets, pay dividends and to fund acquisitions. There is no assurance that this will be the case in the future.

TDS believes that existing cash and investment balances, funds available under its financing agreements, its ability to obtain future external financing, potential dispositions and expected cash flows from operating and investing activities will provide sufficient liquidity for TDS to meet its day-to-day operating needs and debt service requirements. In addition, TDS retains the ability, as described below, to reduce its capital and operating expenditures to lower its funding needs.

TDS may require substantial additional funding for, among other uses, capital expenditures, making additional investments including new technologies, fiber deployments and E-ACAM builds, acquisitions of providers of telecommunications services, wireless spectrum license acquisitions, agreements to purchase goods or services, leases, repurchases of shares, or payment of dividends. It may be necessary from time to time to increase the size of its existing credit facilities, to amend existing or put in place new credit agreements, to obtain other forms of financing, issue equity securities, or to divest assets in order to fund potential expenditures. TDS' liquidity would be adversely affected if it is unable to obtain short or long-term financing on acceptable terms.

TDS will continue to monitor the rapidly changing business and market conditions and is taking and intends to take appropriate actions, as necessary, to meet its liquidity needs, including reducing its planned capital expenditures. Specifically, TDS Telecom has elected to slow the pace of its fiber deployment and reduce or defer planned capital expenditures as a means to lower its funding needs. It is possible that TDS Telecom will be required, if it is unable to access capital on acceptable terms, to substantially reduce its plans for fiber deployment, in both the short and long-term.

Cash and cash equivalents include cash and money market investments. The primary objective of TDS’ Cash and cash equivalents investment activities is to preserve principal. TDS does not have direct access to UScellular cash.

In addition to Cash and cash equivalents, TDS and UScellular had available undrawn borrowing capacity from the following debt facilities at March 31, 2024. See the Financing section below for further details.

			TDS						UScellular
(Dollars in millions)
Revolving Credit Agreement			$	199					$	300
Receivables Securitization Agreement			—						310
Total available undrawn borrowing capacity			$	199					$	610

TDS has a revolving credit agreement with maximum borrowing capacity of $400 million. Amounts under the agreement may be borrowed, repaid and reborrowed from time to time until maturity in July 2026. During the three months ended March 31, 2024, TDS borrowed $100 million under the agreement. As of March 31, 2024, the outstanding borrowings under the agreement were $200 million, and the unused borrowing capacity was $199 million.

UScellular, through its subsidiaries, has a receivables securitization agreement that permits securitized borrowings using its equipment installment plan receivables. Amounts under the agreement may be borrowed, repaid and reborrowed from time to time until September 2025. Unless the agreement is amended to extend the maturity date, repayments based on receivable collections commence in October 2025. During the three months ended March 31, 2024, UScellular borrowed $40 million and repaid $50 million under the agreement. As of March 31, 2024, the outstanding borrowings under the agreement were $140 million and the unused borrowing capacity was $310 million, subject to sufficient collateral to satisfy the asset borrowing base provisions of the agreement.

In May 2024, TDS entered into a $375 million unsecured term loan credit agreement. At closing, $300 million was drawn, less original issue discount, and the remaining $75 million may be drawn until November 2025. The maturity date of the agreement is May 2029.

The TDS and UScellular revolving credit agreements, term loan agreements including the secured term loan, export credit financing agreements and the UScellular receivables securitization agreement require TDS or UScellular, as applicable, to comply with certain affirmative and negative covenants, which include certain financial covenants that may restrict the borrowing capacity available. TDS and UScellular are required to maintain the Consolidated Leverage Ratio as of the end of any fiscal quarter at a level not to exceed the following: 4.25 to 1.00 from January 1, 2023 through March 31, 2024; 4.00 to 1.00 from April 1, 2024 through March 31, 2025; 3.75 to 1.00 from April 1, 2025 and thereafter. TDS and UScellular are also required to maintain the Consolidated Interest Coverage Ratio at a level not lower than 3.00 to 1.00 as of the end of any fiscal quarter. TDS and UScellular believe that they were in compliance as of March 31, 2024 with all such financial covenants.

TDS has an effective shelf registration statement on Form S-3 to issue senior or subordinated securities, common shares, preferred shares and depositary shares.

UScellular has an effective shelf registration statement on Form S-3 to issue senior or subordinated debt securities, preferred shares and depositary shares.

See Note 7 — Debt in the Notes to Consolidated Financial Statements for additional information related to the financing agreements.

Capital expenditures (i.e., additions to property, plant and equipment and system development expenditures; excludes wireless spectrum license additions), which include the effects of accruals and capitalized interest, for the three months ended March 31, 2024 and 2023, were as follows:

TDS intends to finance its capital expenditures for 2024 using primarily Cash flows from operating activities, existing cash balances and additional debt financing from its existing agreements and/or other forms of available financing.

TDS may be engaged in negotiations (subject to all applicable regulations) relating to the acquisition, divestiture or exchange of companies, properties, assets, wireless spectrum licenses and other possible businesses. In general, TDS may not disclose such transactions until there is a definitive agreement.

TDS will require capital for future spending on existing contractual obligations, including long-term debt obligations; dividend obligations; lease commitments; commitments for device purchases, network facilities and transport services; agreements for software licensing; long-term marketing programs; and other agreements to purchase goods or services. TDS has taken and expects to continue to take steps to reduce and defer capital expenditures to lower its funding needs. Refer to Liquidity and Capital Resources within this MD&A for additional information.

TDS consolidates certain “variable interest entities” as defined under GAAP. See Note 8 — Variable Interest Entities in the Notes to Consolidated Financial Statements for additional information related to these variable interest entities. TDS may elect to make additional capital contributions and/or advances to these variable interest entities in future periods to fund their operations.

TDS operates a capital-intensive business. TDS makes substantial investments to acquire wireless spectrum licenses and properties and to construct and upgrade communications networks and facilities with a goal of creating long-term value for shareholders. In recent years, rapid changes in technology and new opportunities have required substantial investments in potentially revenue‑enhancing and cost-saving upgrades to TDS’ networks. Revenues from certain of these investments are long-term and in some cases are uncertain. To meet its cash-flow needs, TDS may need to delay or reduce certain investments, dividend payments or sell assets. Refer to Liquidity and Capital Resources within this MD&A for additional information. Cash flows may fluctuate from quarter to quarter and year to year due to seasonality, timing and other factors. The following discussion summarizes TDS' cash flow activities for the three months ended March 31, 2024 and 2023.

TDS’ Cash, cash equivalents and restricted cash increased $8 million. Net cash provided by operating activities was $224 million due to net income of $38 million adjusted for non-cash items of $258 million, distributions received from unconsolidated entities of $22 million, and changes in working capital items which decreased net cash by $94 million. The working capital changes were primarily driven by payment of associate bonuses and timing of vendor payments, partially offset by reduced receivable and inventory balances.

Cash flows used for investing activities were $246 million, due primarily to payments for property, plant and equipment of $235 million.

Cash flows provided by financing activities were $30 million, due primarily to $100 million borrowed under the TDS revolving credit agreement and a $40 million borrowing under the UScellular receivables securitization agreement. These were partially offset by $57 million in repayments on the UScellular receivables securitization agreement and the TDS and UScellular term loan agreements, the payment of $39 million in dividends and cash paid for software license agreements of $9 million.

TDS’ Cash, cash equivalents and restricted cash decreased $90 million. Net cash provided by operating activities was $46 million due to net income of $12 million adjusted for non-cash items of $240 million, distributions received from unconsolidated entities of $20 million, and changes in working capital items which decreased net cash by $226 million. The working capital changes were primarily driven by timing of vendor payments and payment of associate bonuses, partially offset by a decrease in customer and agent receivable balances.

Cash flows used for investing activities were $334 million, which included payments for property, plant and equipment of $331 million.

Cash flows provided by financing activities were $198 million, due primarily to $115 million borrowed under the UScellular receivables securitization agreement, $100 million borrowed under the TDS revolving credit agreement, and $100 million borrowed under the TDS export credit agreement. These were partially offset by a $60 million repayment on the UScellular EIP receivables repurchase agreement, the payment of $38 million in dividends and cash paid for software license agreements of $8 million.

The following discussion addresses certain captions in the consolidated balance sheet and changes therein. This discussion is intended to highlight the significant changes and is not intended to fully reconcile the changes. Notable balance sheet changes during 2024 were as follows:

Accounts payable decreased $58 million due primarily to vendor payment timing differences.

Accrued compensation decreased $90 million due primarily to associate bonus payments in March 2024.

TDS sometimes uses information derived from consolidated financial information but not presented in its financial statements prepared in accordance with GAAP to evaluate the performance of its business. Specifically, TDS has referred to the following measures in this report:

▪EBITDA

▪Adjusted EBITDA

▪Adjusted OIBDA

▪Free cash flow

These measures are considered “non-GAAP financial measures” under U.S. Securities and Exchange Commission Rules. Following are explanations of each of these measures.

EBITDA, Adjusted EBITDA and Adjusted OIBDA are defined as Net income (loss) adjusted for the items set forth in the reconciliation below. EBITDA, Adjusted EBITDA and Adjusted OIBDA are not measures of financial performance under GAAP and should not be considered as alternatives to Net income (loss) or Cash flows from operating activities, as indicators of cash flows or as measures of liquidity. TDS does not intend to imply that any such items set forth in the reconciliation below are infrequent or unusual; such items may occur in the future.

Adjusted EBITDA is a segment measure reported to the chief operating decision maker for purposes of assessing the segments' performance. See Note 10 — Business Segment Information in the Notes to Consolidated Financial Statements for additional information.

Management uses Adjusted EBITDA and Adjusted OIBDA as measurements of profitability, and therefore reconciliations to applicable GAAP income measures are deemed appropriate. Management believes Adjusted EBITDA and Adjusted OIBDA are useful measures of TDS’ operating results before significant recurring non-cash charges, nonrecurring expenses, gains and losses, and other items as presented below as they provide additional relevant and useful information to investors and other users of TDS’ financial data in evaluating the effectiveness of its operations and underlying business trends in a manner that is consistent with management’s evaluation of business performance. Adjusted EBITDA shows adjusted earnings before interest, taxes, depreciation, amortization and accretion, gains and losses, and expenses related to the strategic alternatives review of UScellular, while Adjusted OIBDA reduces this measure further to exclude Equity in earnings of unconsolidated entities and Interest and dividend income in order to more effectively show the performance of operating activities excluding investment activities. The following tables reconcile EBITDA, Adjusted EBITDA and Adjusted OIBDA to the corresponding GAAP measures, Net income and Operating income.

The following table presents Free cash flow, which is defined as Cash flows from operating activities less Cash paid for additions to property, plant and equipment and Cash paid for software license agreements. Free cash flow is a non-GAAP financial measure which TDS believes may be useful to investors and other users of its financial information in evaluating liquidity, specifically, the amount of net cash generated by business operations after deducting Cash paid for additions to property, plant and equipment and Cash paid for software license agreements.

TDS prepares its consolidated financial statements in accordance with GAAP. TDS’ significant accounting policies are discussed in detail in Note 1 — Summary of Significant Accounting Policies, Note 2 — Revenue Recognition and Note 10 — Leases in the Notes to Consolidated Financial Statements included in TDS' Form 10-K for the year ended December 31, 2023. TDS’ application of critical accounting policies and estimates is discussed in detail in Management’s Discussion and Analysis of Financial Condition and Results of Operations, included in TDS’ Form 10-K for the year ended December 31, 2023.

This Form 10-Q, including exhibits, contains statements that are not based on historical facts and represent forward-looking statements, as this term is defined in the Private Securities Litigation Reform Act of 1995. All statements, other than statements of historical facts, that address activities, events or developments that TDS intends, expects, projects, believes, estimates, plans or anticipates will or may occur in the future are forward-looking statements. The words “believes,” “anticipates,” “estimates,” “expects,” “plans,” “intends,” “projects” and similar expressions are intended to identify these forward-looking statements, but are not the exclusive means of identifying them. Such forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause actual results, events or developments to be significantly different from any future results, events or developments expressed or implied by such forward-looking statements. Such risks, uncertainties and other factors include, but are not limited to, those set forth below, as more fully described under “Risk Factors” in TDS’ Form 10-K for the year ended December 31, 2023 and in this Form 10-Q. Each of the following risks could have a material adverse effect on TDS’ business, financial condition or results of operations. However, such factors are not necessarily all of the important factors that could cause actual results, performance or achievements to differ materially from those expressed in, or implied by, the forward-looking statements contained in this document. Other unknown or unpredictable factors also could have material adverse effects on future results, performance or achievements. TDS undertakes no obligation to update publicly any forward-looking statements whether as a result of new information, future events or otherwise. You should carefully consider the Risk Factors in TDS’ Form 10-K for the year ended December 31, 2023, the following factors and other information contained in, or incorporated by reference into, this Form 10-Q to understand the material risks relating to TDS’ business, financial condition or results of operations.

▪Intense competition involving products, services, pricing, promotions and network speed and technologies could adversely affect TDS’ revenues or increase its costs to compete.

▪Changes in roaming practices or other factors could cause TDS’ roaming revenues to decline from current levels, roaming expenses to increase from current levels and/or impact TDS’ ability to service its customers in geographic areas where TDS does not have its own network, which could have an adverse effect on TDS’ business, financial condition or results of operations.

▪An inability to attract diverse people of outstanding talent throughout all levels of the organization, to develop their potential through education and assignments, and to retain them by keeping them engaged, challenged and properly rewarded could have an adverse effect on TDS' business, financial condition or results of operations.

▪TDS’ smaller scale relative to larger competitors that may have greater financial and other resources than TDS could cause TDS to be unable to compete successfully, which could adversely affect its business, financial condition or results of operations.

▪Changes in various business factors, including changes in demand, consumer preferences and perceptions, price competition, churn from customer switching activity and other factors, could have an adverse effect on TDS’ business, financial condition or results of operations.

▪A failure by TDS to obtain access to adequate radio spectrum to meet current or anticipated future needs and/or to accurately predict future needs for radio spectrum could have an adverse effect on TDS’ business, financial condition or results of operations.

▪Advances or changes in technology could render certain technologies used by TDS obsolete, could put TDS at a competitive disadvantage, could reduce TDS’ revenues or could increase its costs of doing business.

▪Complexities associated with deploying new technologies present substantial risk and TDS’ investments in unproven technologies may not produce the benefits that TDS expects.

▪Costs, integration problems or other factors associated with acquisitions, divestitures or exchanges of properties or wireless spectrum licenses and/or expansion of TDS’ businesses could have an adverse effect on TDS’ business, financial condition or results of operations.

▪A failure by TDS to complete significant network construction and systems implementation activities as part of its plans to improve the quality, coverage, capabilities and capacity of its network, support and other systems and infrastructure could have an adverse effect on its operations.

▪Difficulties involving third parties with which TDS does business, including changes in TDS’ relationships with or financial or operational difficulties, including supply chain disruptions, of key suppliers or independent agents and third-party national retailers who market TDS’ services, could adversely affect TDS’ business, financial condition or results of operations.

▪A failure by TDS to maintain flexible and capable telecommunication networks or information technologies, or a material disruption thereof, could have an adverse effect on TDS’ business, financial condition or results of operations.

▪Uncertainty in TDS’ or UScellular's future cash flow and liquidity or the inability to access capital, deterioration in the capital markets, changes in interest rates, other changes in TDS’ or UScellular's performance or market conditions, changes in TDS’ or UScellular's credit ratings or other factors could limit or restrict the availability of financing on terms and prices acceptable to TDS, which has required and is expected in the future to require TDS to reduce or delay its construction, development or acquisition programs, reduce the amount of wireless spectrum licenses acquired, divest assets or businesses, and/or reduce or cease share repurchases and/or the payment of common shareholder dividends.

▪TDS has a significant amount of indebtedness which could adversely affect its financial performance and in turn adversely affect its ability to make payments on its indebtedness, comply with terms of debt covenants and incur additional debt.

▪TDS has entered into a Senior Secured Credit Agreement that imposes certain restrictions on its business and operations that may affect its ability to operate its business and make payments on its indebtedness.

▪TDS’ assets and revenue are concentrated primarily in the U.S. telecommunications industry. Consequently, its operating results may fluctuate based on factors related primarily to conditions in this industry.

▪TDS has significant investments in entities that it does not control. Losses in the value of such investments could have an adverse effect on TDS’ financial condition or results of operations.

▪TDS and UScellular have initiated a process to explore a range of strategic alternatives for UScellular and there can be no assurance that any strategic alternative will be successfully identified or completed, that any such strategic alternative will result in additional value for TDS and its shareholders, or that the process will not have an adverse impact on TDS' business or financial statements.

▪Failure by TDS to timely or fully comply with any existing applicable legislative and/or regulatory requirements or changes thereto could adversely affect TDS’ business, financial condition or results of operations.

▪TDS receives significant regulatory support, and is also subject to numerous surcharges and fees from federal, state and local governments – the applicability and the amount of the support and fees are subject to great uncertainty, including the ability to pass through certain fees to customers, and this uncertainty could have an adverse effect on TDS’ business, financial condition or results of operations.

▪Settlements, judgments, restraints on its current or future manner of doing business and/or legal costs resulting from pending and future litigation could have an adverse effect on TDS’ business, financial condition or results of operations.

▪The possible development of adverse precedent in litigation or conclusions in professional or environmental studies to the effect that potentially harmful emissions from devices or network equipment, including but not limited to radio frequencies emitted by wireless signals or due to contamination from network cabling, may cause harmful health or environmental consequences, including cancer, tumors or otherwise harmful impacts, or may interfere with various electronic medical devices or frequencies used by other industries, could have an adverse effect on TDS’ wireless and/or wireline business, financial condition or results of operations.

▪Claims of infringement of intellectual property and proprietary rights of others, primarily involving patent infringement claims, could prevent TDS from using necessary technology to provide products or services or subject TDS to expensive intellectual property litigation or monetary penalties, which could have an adverse effect on TDS’ business, financial condition or results of operations.

▪Certain matters, such as control by the TDS Voting Trust and provisions in the TDS Restated Certificate of Incorporation, may serve to discourage or make more difficult a change in control of TDS or have other consequences.

▪TDS has experienced, and in the future expects to experience, cyber-attacks or other breaches of network or information technology security of varying degrees on a regular basis, which could have an adverse effect on TDS' business, financial condition or results of operations.

▪Disruption in credit or other financial markets, a deterioration of U.S. or global economic conditions or other events could, among other things, impede TDS’ access to or increase the cost of financing its operating and investment activities and/or result in reduced revenues and lower operating income and cash flows, which would have an adverse effect on TDS’ business, financial condition or results of operations.

▪The impact of public health emergencies on TDS' business is uncertain, but depending on duration and severity could have a material adverse effect on TDS' business, financial condition or results of operations.

In addition to the information set forth in this Form 10-Q, you should carefully consider the factors discussed in Part I, “Item 1A. Risk Factors” in TDS’ Form 10-K for the year ended December 31, 2023, which could materially affect TDS’ business, financial condition or future results. The risks described in this Form 10-Q and the Form 10-K for the year ended December 31, 2023, may not be the only risks that could affect TDS. Additional unidentified or unrecognized risks and uncertainties could materially adversely affect TDS’ business, financial condition and/or operating results. Subject to the foregoing, TDS has not identified for disclosure any material changes to the risk factors as previously disclosed in TDS’ Form 10-K for the year ended December 31, 2023.

As of March 31, 2024, approximately 50% of TDS' long-term debt was in fixed-rate senior notes and approximately 50% in variable-rate debt. Fluctuations in market interest rates can lead to volatility in the fair value of fixed-rate notes and interest expense on variable-rate debt.

The following table presents the scheduled principal payments on long-term debt, lease obligations, and the related weighted average interest rates by maturity dates at March 31, 2024.

1The total long-term debt obligation differs from Long-term debt in the Consolidated Balance Sheet due to unamortized debt issuance costs on all non-revolving debt instruments, unamortized discounts related to UScellular's 6.7% Senior Notes, and outstanding borrowings under the receivables securitization agreement, which principal repayments are not scheduled but are instead based on actual receivable collections.

2Represents the weighted average stated interest rates at March 31, 2024, for debt maturing in the respective periods.

See Note 3 — Fair Value Measurements in the Notes to Consolidated Financial Statements for additional information related to the fair value of TDS’ Long-term debt as of March 31, 2024.