QWEST CORP

Report of Independent Registered Public Accounting Firm

To the Board of Directors and Stockholder

Qwest Corporation:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Qwest Corporation and subsidiaries (the Company) as of December 31, 2025 and 2024, the related consolidated statements of operations, cash flows, and stockholder’s equity for each of the years in the three-year period ended December 31, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of December 31, 2025 and 2024, and the results of its operations and its cash flows for each of the years in the three‑year period ended December 31, 2025, in conformity with U.S. generally accepted accounting principles.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the Public Company Accounting Oversight Board (United States) (PCAOB) and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the consolidated financial statements are free of material misstatement, whether due to error or fraud. The Company is not required to have, nor were we engaged to perform, an audit of its internal control over financial reporting. As part of our audits, we are required to obtain an understanding of internal control over financial reporting but not for the purpose of expressing an opinion on the effectiveness of the Company’s internal control over financial reporting. Accordingly, we express no such opinion.

Our audits included performing procedures to assess the risks of material misstatement of the consolidated financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the consolidated financial statements. Our audits also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the consolidated financial statements. We believe that our audits provide a reasonable basis for our opinion.

Critical Audit Matters

The critical audit matters communicated below are matters arising from the current period audit of the consolidated financial statements that were communicated or required to be communicated to those charged with governance and that: (1) relate to accounts or disclosures that are material to the consolidated financial statements and (2) involved our especially challenging, subjective, or complex judgments. The communication of critical audit matters does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matters below, providing separate opinions on the critical audit matters or on the accounts or disclosures to which they relate.

Testing of revenue

As discussed in Note 4 to the consolidated financial statements, the Company recorded $4.7 billion of operating revenues for the year ended December 31, 2025. The processing and recording of revenue are reliant upon multiple information technology (IT) systems.

We identified the evaluation of the sufficiency of audit evidence over revenue as a critical audit matter. Complex auditor judgment was required in evaluating the sufficiency of audit evidence over revenue due to the large volume of data and the number and complexity of the revenue accounting systems. Specialized skills and knowledge were needed to test the IT systems used for the processing and recording of revenue.

The following are the primary procedures we performed to address this critical audit matter. We applied auditor judgment to determine the nature and extent of procedures to be performed over the processing and recording of revenue, including the IT systems tested. We evaluated the design and tested the operating effectiveness of certain internal controls related to the processing and recording of revenue. This included manual and automated controls over the IT systems used for the processing and recording of revenue. For a selection of transactions, we compared the amount of revenue recorded to a combination of Company internal data, executed contracts, and other relevant third-party data. In addition, we involved IT professionals with specialized skills and knowledge who assisted in the design and performance of audit procedures related to certain IT systems used by the Company for the processing and recording of revenue. We evaluated the sufficiency of audit evidence obtained by assessing the results of procedures performed, including the relevance and reliability of evidence obtained.

Sufficiency of audit evidence over the implementation of enterprise resource planning system

The Company implemented the first phase of a new enterprise resource planning system (the ERP implementation) during the fourth quarter of 2025. The ERP implementation impacted a high volume of transactions, substantially all financial statement account balances, and certain disclosures.

We identified the evaluation of the sufficiency of audit evidence over the ERP implementation as a critical audit matter. Complex auditor judgment and the involvement of information technology (IT) professionals with specialized skills and knowledge were required to evaluate general IT controls and IT application controls of certain IT applications.

The following are the primary procedures we performed to address this critical audit matter. We applied auditor judgment to determine the nature and extent of procedures to be performed over the ERP implementation. We involved IT professionals with specialized skills and knowledge, who assisted in:

•obtaining an understanding of the relevant IT applications

•evaluating the design and testing the operating effectiveness of certain general IT controls, including controls related to program development, change management, and logical access

•evaluating the design and testing the operating effectiveness of certain IT application controls, including inspecting and evaluating configurations and interfaces.

We evaluated the sufficiency of audit evidence obtained by assessing the results of procedures performed, including the appropriateness of the nature and extent of the audit effort.

Goodwill Impairment

As discussed in Notes 2 and 3 to the consolidated financial statements, the goodwill balance at December 31, 2025, was $3.6 billion. The Company assesses goodwill for impairment at least annually, or more frequently, if events or changes in circumstances indicate the carrying value of its reporting unit likely exceeds its fair value. On the annual goodwill impairment assessment date, the Company estimated the fair value of its reporting unit by considering both a discounted cash flow method and a market approach. The annual impairment test determined the carrying value of the Company’s reporting unit exceeded its estimated fair value. As a result, the Company recorded an impairment charge of $2.0 billion.

We identified the assessment of the Company’s annual impairment testing related to the carrying value of goodwill as a critical audit matter. Subjective auditor judgment was required in evaluating certain assumptions used to estimate the fair value of the reporting unit. Those assumptions included: projected cash flows, the discount rate, and the earnings before interest, taxes, depreciation and amortization (EBITDA) market multiple. The evaluation of these assumptions was challenging due to their subjective nature. Additionally, differences in judgment used to determine these assumptions could have had a significant effect on the reporting unit’s estimated fair value. Specialized skills and knowledge were required in the assessment of the discount rate and the EBITDA market multiple.

The following are the primary procedures we performed to address this critical audit matter. We evaluated the design and tested the operating effectiveness of certain internal controls related to the annual impairment testing of goodwill. This included controls related to the Company’s development of projected cash flows and the determination of the discount rate and EBITDA market multiple. We assessed the Company’s ability to accurately project cash flows by comparing the Company’s historical projected cash flows to actual results. We also evaluated the Company’s projected cash flows by comparing them to the Company’s underlying business strategies, historic trends and publicly available industry and analyst reports. We involved valuation professionals with specialized skills and knowledge, who assisted in:

•evaluating the discount rate by independently developing a discount rate range using publicly available market data for comparable entities

•evaluating the EBITDA market multiple by comparing to EBITDA market multiple range developed using publicly available market data for comparable entities

/s/ KPMG LLP

We have served as the Company’s auditor since 2002.

Denver, Colorado

February 20, 2026