UNITED STATES CELLULAR CORP

The following discussion and analysis compares United States Cellular Corporation’s (UScellular) financial results for the three and six months ended June 30, 2024, to the three and six months ended June 30, 2023. It should be read in conjunction with UScellular’s interim consolidated financial statements and notes included herein, and with the description of UScellular’s business, its audited consolidated financial statements and Management's Discussion and Analysis of Financial Condition and Results of Operations (MD&A) included in UScellular’s 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.

During the second quarter of 2024, UScellular modified its reporting structure due to the planned disposal of its wireless operations and, as a result, disaggregated its operations into two reportable segments – Wireless and Towers. This presentation reflects how UScellular's chief operating decision maker allocates resources and evaluates operating performance following this strategic shift. Prior periods have been updated to conform to the new reportable segments. See Note 11 — Business Segment Information in the Notes to Consolidated Financial Statements for additional information.

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 UScellular conform to accounting principles generally accepted in the United States of America (GAAP). However, UScellular uses certain “non-GAAP financial measures” in the MD&A. A discussion of the reasons UScellular 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.

General

UScellular provides wireless service throughout its footprint, and leases tower space to third-party carriers on UScellular-owned towers. UScellular is an 82%-owned subsidiary of Telephone and Data Systems, Inc. (TDS).

OPERATIONS

▪Serves customers with 4.5 million retail connections including approximately 4.0 million postpaid and 0.4 million prepaid connections

▪Operates in 21 states

▪Employs approximately 4,300 associates

▪Owns 4,388 towers

▪Operates 6,990 cell sites in service

UScellular Mission and Strategy

UScellular’s mission is to connect its customers to what matters most to them. This includes providing exceptional wireless communication services which enhance consumers’ lives, increase the competitiveness of local businesses, and improve the efficiency of government operations in the markets UScellular serves.

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 local community focus. 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 seeks to grow revenue in its Towers segment primarily through increasing third-party colocations on existing towers through providing unique tower locations, attractive terms and streamlined implementation to third-party wireless operators.

Announced Transaction and Strategic Alternatives Review

On August 4, 2023, TDS and UScellular announced that the Boards of Directors of both companies decided to initiate a process to explore a range of strategic alternatives for UScellular. On May 28, 2024, UScellular announced that its Board of Directors unanimously approved the execution of a Securities Purchase Agreement (Securities Purchase Agreement) by and among TDS, UScellular, T-Mobile US, Inc. (T-Mobile) and USCC Wireless Holdings, LLC, pursuant to which, among other things, UScellular agreed to sell its wireless operations and select spectrum assets to T-Mobile for a purchase price, subject to adjustment as specified in the Securities Purchase Agreement, of $4,400 million, which is payable in a combination of cash and the assumption of up to approximately $2,000 million in debt. The transaction is expected to close in mid-2025, subject to the receipt of regulatory approvals and the satisfaction of customary closing conditions.

The strategic alternatives review process is ongoing as UScellular seeks to opportunistically monetize its spectrum assets that are not subject to the Securities Purchase Agreement. During the three and six months ended June 30, 2024, UScellular incurred third-party expenses of $13 million and $21 million, respectively, related to the strategic alternatives review.