July 23, 2025 - HOUSTON, TEXAS - Crown Castle Inc. (NYSE: CCI) ("Crown Castle") today reported results for the second quarter ended June 30, 2025 and updated its full year 2025 Outlook, as reflected in the table below.

(a)Reflects midpoint of full year 2025 Outlook as issued on July 23, 2025.

(b)Reflects midpoint of full year 2025 Outlook as issued on April 30, 2025.

(c)Excludes amounts related to the Fiber Business (as defined in "Non-GAAP Measures and Other Information") which are presented in discontinued operations.

(d)See "Non-GAAP Measures and Other Information" for further information and reconciliation of non-GAAP financial measures to net income (loss), including on a per share basis.

"With strong operational performance and higher leasing activity from our customers as they continue to augment capacity in their networks, we delivered solid results in the second quarter and increased our full year 2025 Outlook," stated Dan Schlanger, Crown Castle’s Interim President and Chief Executive Officer. "Our increased Outlook for full year 2025 demonstrates the progress we are making across the key near-term priorities we articulated last quarter, including delivering on our 2025 financial and operating objectives, successfully closing the previously announced sale of our small cells and fiber solutions businesses, and positioning the tower business to maximize shareholder value on a standalone basis. Our updated full year 2025 Outlook includes both an increase in organic growth to 4.7%, excluding the impact of Sprint Cancellations, and a $10 million reduction in overhead costs. In addition to delivering strong operational results in the first half of 2025, we have made progress on the sale transaction, which we continue to believe will close in the first half of 2026. We believe the improved financial flexibility we created with our previously announced capital allocation framework coupled with investments in our systems and processes to streamline our operations will enable us to better serve our customers, operate more efficiently, and maximize long-term shareholder value on a standalone basis."

The table below sets forth select financial results for the quarters ended June 30, 2025 and June 30, 2024.

(a)Excludes amounts related to the Fiber Business which are presented in discontinued operations.

(b)See "Non-GAAP Measures and Other Information" for further information and reconciliation of non-GAAP financial measures to net income (loss), including on a per share basis.

•Site rental revenues. Organic Contribution to Site Rental Billings was $45 million, or 4.7% organic growth from second quarter 2024, excluding an unfavorable $51 million impact from Sprint Cancellations. Site rental revenues were also negatively impacted by a $16 million decrease in amortization of prepaid rent and a $34 million decrease in straight-lined revenues, resulting in a decline in site rental revenues of $56 million, or 5.3% from second quarter 2024 to second quarter 2025. The following table outlines the components of Organic Contribution to Site Rental Billings, excluding the impact of Sprint Cancellations, and the respective percentage of prior period site rental billings.

(a)As issued July 23, 2025.

(b)See "Non-GAAP Measures and Other Information" for our definitions of core leasing activity, non-renewals, other billings and Organic Contribution to Site Rental Billings as Adjusted for Impact of Sprint Cancellations.

•Net income (loss). Net income (loss) for the second quarter 2025 was $291 million compared to $251 million for the second quarter 2024.

•Adjusted EBITDA. Second quarter 2025 Adjusted EBITDA was $705 million compared to $727 million for the second quarter 2024. The decrease in the year was a result of the lower contribution from site rental revenues, as discussed above, partially offset by a $37 million decrease in selling, general, and administrative costs primarily driven by the reduction in staffing levels and office closures announced in June 2024 and the absence of $20 million of advisory fees incurred in the second quarter 2024, and a $6 million increase in services contribution.

•AFFO and AFFO per share. Second quarter 2025 AFFO was $444, or $1.02 per share, representing a 1% decrease from the second quarter 2024.

•Capital expenditures. Capital expenditures from continuing operations during the quarter were $40 million, comprised of $33 million of discretionary capital expenditures and $7 million of sustaining capital expenditures. The $40 million of capital expenditures represents no change from the second quarter 2024.

•Common stock dividend. During the quarter, Crown Castle paid common stock dividends of approximately $463 million in the aggregate, or $1.0625 per common share, a decrease of 32% on a per share basis from the same period a year ago.

"Our second quarter results, which were highlighted by 4.7% organic growth excluding the impact of Sprint Cancellations, demonstrated the solid performance of the underlying tower business," stated Sunit Patel, Crown Castle’s Executive Vice President and Chief Financial Officer. "Our focus on operations and execution has positioned us to increase our outlook for full year 2025 while keeping us on track to close the sale transaction in the first half of 2026. Our solid financial and operational performance is complemented by our strong balance sheet, which ended the quarter with approximately 86% fixed rate debt, a weighted average debt maturity of over 6 years, and approximately $4.7 billion of availability under our revolving credit facility, compared to approximately $2.2 billion of debt maturities over the next twelve months. We believe our previously announced capital allocation framework, which balances the predictable return of capital to shareholders with financial flexibility and balance sheet strength, will position our pure-play U.S. tower business to maximize long-term shareholder value."

This Outlook section contains forward-looking statements, and actual results may differ materially. Information regarding potential risks which could cause actual results to differ from the forward-looking statements herein is set forth below and in Crown Castle's filings with the SEC.

The following table sets forth Crown Castle's current full year 2025 Outlook, which includes the following key changes from the previous Outlook issued on April 30, 2025:

•A $10 million increase to site rental revenues from higher Organic Contributions to Site Rental Billings.

•A $25 million increase in Adjusted EBITDA, as the $10 million increase to site rental revenues is complemented by a $10 million decrease in selling, general, and administrative costs, and a $5 million increase in services and other gross margin.

•A $35 million increase in AFFO, as the $25 million increase to Adjusted EBITDA is combined with a $10 million reduction in interest expense largely driven by updated term-out assumptions.

•A $35 million increase to net income.

•Additionally, a $15 million decrease in site rental costs of operations from non-cash compensation expense that is attributable to discontinued operations. Because Adjusted EBITDA and AFFO already exclude non-cash compensation, there is no impact to Adjusted EBITDA or AFFO relative to the previous Outlook.

(a)As issued on July 23, 2025.

(b)As issued on April 30, 2025.

(c)See "Non-GAAP Measures and Other Information" for further information and reconciliation of non-GAAP financial measures to net income (loss), including on a per share basis, and for definition of site rental billings and discretionary capital expenditures.

(d)Exclusive of depreciation, amortization and accretion.

(e)Includes contributions from discontinued operations.

(f)See "Non-GAAP Measures and Other Information" for the reconciliation of "Outlook for Components of Interest Expense."

(g)Represents expected results from the Fiber Business, including the estimated loss on disposal.

(h)Represents discretionary capital expenditures for the Fiber Business.

•The following chart reconciles the components contributing to the expected 2025 decrease in site rental revenues. Full year site rental billings growth, excluding the impact of Sprint Cancellations, is expected to increase from 4.5% reflected in the previous Outlook to 4.7%.

•Core leasing activity is expected to increase $5 million from the previous Outlook as we expect higher activity levels in 2025 than originally anticipated.

•Change in other billings is expected to increase $5 million from the previous Outlook, partially consisting of an increase in back-billings.

Additional information is available in Crown Castle's quarterly Supplemental Information Package posted in the Investors section of our website.

Crown Castle has scheduled a conference call for Wednesday, July 23, 2025, at 5:30 p.m. Eastern time to discuss its second quarter 2025 results. A listen only live audio webcast of the conference call, along with supplemental materials for the call, can be accessed on the Crown Castle website at https://investor.crowncastle.com. Participants may join the conference call by dialing 833-816-1115 (Toll Free) or 412-317-0694 (International) at least 30 minutes prior to the start time. All dial-in participants should ask to join the Crown Castle call.

A replay of the webcast will be available on the Investor page of Crown Castle's website until end of day, Thursday, July 23, 2026.

Crown Castle owns, operates and leases approximately 40,000 cell towers and approximately 90,000 route miles of fiber supporting small cells and fiber solutions across every major U.S. market. This nationwide portfolio of communications infrastructure connects cities and communities to essential data, technology and wireless service - bringing information, ideas and innovations to the people and businesses that need them. For more information on Crown Castle, please visit www.crowncastle.com.

This press release includes presentations of Adjusted EBITDA, Adjusted Funds from Operations ("AFFO"), including per share amounts, Funds from Operations ("FFO"), including per share amounts, Organic Contribution to Site Rental Billings, including as Adjusted for Impact of Sprint Cancellations, and Net Debt, which are non-GAAP financial measures. These non-GAAP financial measures are not intended as alternative measures of operating results or cash flow from operations (as determined in accordance with Generally Accepted Accounting Principles ("GAAP")).

Our non-GAAP financial measures may not be comparable to similarly titled measures of other companies, including other companies in the towers sector or other real estate investment trusts ("REITs").

In addition to the non-GAAP financial measures used herein, we also provide the components of certain GAAP measures, such as site rental revenues and capital expenditures.

•Adjusted EBITDA is useful to investors or other interested parties in evaluating our financial performance. Adjusted EBITDA is a financial measure frequently used by management (1) to evaluate the economic productivity of our operations and (2) for purposes of making decisions about allocating resources to, and assessing the performance of, our operations. Management believes that Adjusted EBITDA helps investors or other interested parties meaningfully evaluate and compare the results of our operations (1) from period to period and (2) to our competitors, by removing the impact of our capital structure (primarily interest charges from our outstanding debt) and asset base (primarily depreciation, amortization and accretion) from our financial results. Management also believes Adjusted EBITDA is frequently used by investors or other interested parties in the evaluation of the towers sector and other REITs to measure financial performance without regard to items such as depreciation, amortization and accretion, which can vary depending upon accounting methods and the book value of assets. Adjusted EBITDA should be considered only as a supplement to net income (loss) computed in accordance with GAAP as a measure of our performance.

•AFFO, including per share amounts, is useful to investors or other interested parties in evaluating our financial performance. Management believes that AFFO helps investors or other interested parties meaningfully evaluate our financial performance as it includes (1) the impact of our capital structure (primarily interest expense on our outstanding debt and dividends on our preferred stock (in periods where applicable)) and (2) sustaining capital expenditures, and excludes the impact of our (1) asset base (primarily depreciation, amortization and accretion) and (2) certain non-cash items, including straight-lined revenues and expenses related to fixed escalations and rent free periods. GAAP requires rental revenues and expenses related to leases that contain specified rental increases over the life of the lease to be recognized evenly over the life of the lease. In accordance with GAAP, if payment terms call for fixed escalations or rent free periods, the (1) revenues are recognized on a straight-lined basis over the fixed, non-cancelable term of the tenant contract, and (2) expenses are recognized on a straight-lined basis over the estimated lease term including renewal options that are reasonably certain to be exercised. Management notes that Crown Castle uses AFFO only as a performance measure. AFFO should be considered only as a supplement to net income (loss) computed in accordance with GAAP as a measure of our performance and should not be considered as an alternative to cash flow from operations or as residual cash flow available for discretionary investment.

•FFO, including per share amounts, is useful to investors or other interested parties in evaluating our financial performance. Management believes that FFO may be used by investors or other interested parties as a basis to compare our financial performance with that of other REITs. FFO helps investors or other interested parties meaningfully evaluate financial performance by excluding the impact of our asset base (primarily real estate depreciation, amortization and accretion). FFO is not a key performance indicator used by Crown Castle. FFO should be considered only as a supplement to net income (loss) computed in accordance with GAAP as a measure of our performance and should not be considered as an alternative to cash flow from operations.

•Organic Contribution to Site Rental Billings (also referred to as organic growth) is useful to investors or other interested parties in understanding the components of the year-over-year changes in our site rental revenues computed in accordance with GAAP. Management uses Organic Contribution to Site Rental Billings to assess year-over-year growth rates for our rental activities, to evaluate current performance, to capture trends in rental rates, core leasing activities and tenant non-renewals in our core business, as well as to forecast future results. Separately, we are also disclosing Organic Contribution to Site Rental Billings as Adjusted for Impact of Sprint Cancellations, which is outside of ordinary course, to provide further insight into our results of operations and underlying trends. Management believes that identifying the impact of Sprint Cancellations provides increased transparency and comparability across periods. Organic Contribution to Site Rental Billings (including as Adjusted for Impact of Sprint Cancellations) is not meant as an alternative measure of revenue and should be considered only as a supplement in understanding and assessing the performance of our site rental revenues computed in accordance with GAAP.

•Net Debt is useful to investors or other interested parties in evaluating our overall debt position and future debt capacity. Management uses Net Debt in assessing our leverage. Net Debt is not meant as an alternative measure of debt and should be considered only as a supplement in understanding and assessing our leverage.

Fiber Business. We define Fiber Business as the historically reported Fiber segment, prior to its reclassification to discontinued operations, together with certain supporting assets and personnel. Management has signed a definitive agreement ("Agreement") to sell the Fiber Business with EQT Active Core Infrastructure fund ("EQT") acquiring the small cells business and Zayo Group Holdings Inc. ("Zayo") acquiring the fiber solutions business ("Transaction") for $8.5 billion in aggregate, subject to certain closing adjustments. The Transaction is expected to close in the first half of 2026 subject to certain closing conditions and required government and regulatory approvals. Pending the closing of the Transaction, we will continue to operate the Fiber Business in accordance with the Agreement.

(a)Includes contribution from discontinued operations.

(b)Represents restructuring charges recorded for the periods presented related to (1) the Company's restructuring plan announced in July 2023, as further discussed in the Annual Report on Form 10-K for the fiscal year ended December 31, 2023 ("2023 Restructuring Plan"), and (2) the Company's restructuring plan announced in June 2024, as further discussed in the Annual Report on Form 10-K for the year ended December 31, 2024 ("2024 Restructuring Plan"), as applicable for the respective period. For the three and six months ended June 30, 2025, there were no charges related to the July 2023 Restructuring Plan or the June 2024 Restructuring Plan. For the full year ended December 31, 2024, there were $9 million and $61 million of restructuring charges related to the July 2023 Restructuring Plan and the June 2024 Restructuring Plan, respectively, relating to continuing operations.

(c)See the reconciliation of "Components of Interest Expense" for a discussion of non-cash interest expense.

(d)Represents results from the Fiber Business, including a loss on disposal of $252 million and $1.1 billion recorded in the three and six months ended June 30, 2025, respectively.

(e)See discussion and our definition of Adjusted EBITDA in this "Non-GAAP Measures and Other Information."

(f)The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.

(g)See the reconciliation of "Outlook for Components of Interest Expense" for a discussion of non-cash interest expense.

(h)As issued on July 23, 2025.

(i)Represents expected results from the Fiber Business, including the estimated loss on disposal.

(a)Includes contribution from discontinued operations.

(b)Represents results from the Fiber Business, including a loss on disposal of $252 million and $1.1 billion recorded in the three and six months ended June 30, 2025, respectively.

(c)See discussion and our definitions of FFO and AFFO in this "Non-GAAP Measures and Other Information."

(d)The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.

(e)Represents restructuring charges recorded for the periods presented related to the 2023 Restructuring Plan and the 2024 Restructuring Plan, as applicable, for the respective period. For the three and six months ended June 30, 2025, there were no charges related to the July 2023 Restructuring Plan or the June 2024 Restructuring Plan. For the full year ended December 31, 2024, there were $9 million and $61 million of restructuring charges related to the July 2023 Restructuring Plan and the June 2024 Restructuring Plan, respectively, relating to continuing operations.

(a)Includes contribution from discontinued operations.

(b)Represents results from the Fiber Business, including a loss on disposal of $252 million and $1.1 billion recorded in the three and six months ended June 30, 2025, respectively.

(c)See discussion and our definitions of FFO and AFFO, including per share amounts, in this "Non-GAAP Measures and Other Information."

(d)The above reconciliation excludes line items included in our definition which are not applicable for the periods shown.

(e)Represents restructuring charges recorded for the periods presented related to the 2023 Restructuring Plan and the 2024 Restructuring Plan, as applicable, for the respective period. For the three and six months ended June 30, 2025, there were no charges related to the July 2023 Restructuring Plan or the June 2024 Restructuring Plan. For the full year ended December 31, 2024, there were $9 million and $61 million of restructuring charges related to the July 2023 Restructuring Plan and the June 2024 Restructuring Plan, respectively, relating to continuing operations.

(a)As issued on July 23, 2025.

(b)Includes contribution from discontinued operations.

(c)Represents expected results from the Fiber Business, including the estimated loss on disposal.

(d)See discussion and our definitions of FFO and AFFO, including per share amounts, in this "Non-GAAP Measures and Other Information."

(e)The above reconciliation excludes line items included in our definition which are not applicable for the period shown.

(a)As issued on April 30, 2025.

(b)Includes contribution from discontinued operations.

(c)See the reconciliation of "Outlook for Components of Interest Expense" for a discussion of non-cash interest expense.

(d)Represents expected results from the Fiber Business, including the estimated loss on disposal.

(e)See discussion of and our definition of Adjusted EBITDA, FFO and AFFO, including per share amounts in this "Non-GAAP Measures and Other Information."

(f)The above reconciliation excludes line items included in our definition which are not applicable for the period shown.

Components of Changes in Site Rental Revenues for the Quarters Ended June 30, 2025 and 2024(a):

(a)The financial impact of the Fiber Business revenues are excluded as amounts are presented within discontinued operations.

(b)See our definitions of site rental billings, core leasing activity, non-renewals, other billings, Sprint Cancellations, Organic Contribution to Site Rental Billings and Organic Contribution to Site Rental Billings as Adjusted for Impact of Sprint Cancellations in this "Non-GAAP Measures and Other Information."

(a)As issued on July 23, 2025. Represents Outlook for continuing operations only.

(b)As issued on April 30, 2025.

(c)Reflects prior year site rental billings in the historically reported Towers segment. The financial impact of prior year site rental billings in the historically reported Fiber segment is excluded as such billings are included in discontinued operations for 2025.

(d)See our definitions of site rental billings, core leasing activity, non-renewals, other billings, Sprint Cancellations, Organic Contribution to Site Rental Billings, and Organic Contribution to Site Rental Billings as Adjusted for Impact of Sprint Cancellations in this "Non-GAAP Measures and Other Information."

(e)Represents the contribution from recent acquisitions. The financial impact of recent acquisitions is excluded from Organic Contribution to Site Rental Billings, including as Adjusted for Impact of Sprint Cancellations, until the one-year anniversary of such acquisitions.

(f)Calculated based on midpoint of full year 2025 Outlook, where applicable.

Components of Capital Expenditures:(a)(b)

Outlook for Discretionary Capital Expenditures Less Prepaid Rent Additions:(b)(c)

(a)See our definitions of discretionary capital expenditures and sustaining capital expenditures in this "Non-GAAP Measures and Other Information."

(b)The financial impact of the Fiber Business is excluded as amounts are presented within discontinued operations.

(c)Excludes sustaining capital expenditures. See "Non-GAAP Measures and Other Information" for our definitions of discretionary capital expenditures and sustaining capital expenditures.

(d)As issued on July 23, 2025.

(e)Reflects up-front consideration from long-term tenant contracts (commonly referred to as prepaid rent) that are amortized and recognized as revenue over the associated estimated lease term in accordance with GAAP.

(f)As issued on April 30, 2025.

Debt Balances and Maturity Dates as of June 30, 2025:

(a)Net of required principal amortizations.

(b)As of June 30, 2025, excludes $14 million recorded in discontinued operations relating to the Fiber Business.

(c)The Senior Secured Notes, 2009-1, Class A-2 principal amortizes over a period ending in August 2029.

(d)If the $750 million aggregate principal amount of 4.241% senior secured tower revenue notes ("Tower Revenue Notes, Series 2018-2") is not paid in full on or prior to July 2028, the anticipated repayment date, then the Excess Cash Flow (as defined in the indenture) of the issuers of such notes will be used to repay the principal, and additional interest (of approximately 5% per annum) will accrue on such notes. The Tower Revenue Notes, Series 2018-2 are prepayable at par if voluntarily repaid within eighteen months of maturity; earlier prepayment may require additional consideration.

(e)As of June 30, 2025, reflects $7 million in finance lease obligations (primarily related to vehicles). Amount excludes $32 million recorded in discontinued operations relating to the Fiber Business.

(f)As of June 30, 2025, the undrawn availability under the $7.0 billion 2016 Revolver was $6.6 billion. The Company pays a commitment fee on the undrawn available amount, which as of June 30, 2025 ranged from 0.080% to 0.300%, based on the Company's senior unsecured debt rating, per annum.

(g)The 2016 Term Loan A principal amortizes over a period ending in July 2027.

(h)As of June 30, 2025, the Company had $95 million available for issuance under its $2.0 billion unsecured commercial paper program. The maturities of the Commercial Paper Notes, when outstanding, may vary but may not exceed 397 days from the date of issue.

(i)In July 2025, we repaid in full the 1.350% Senior Notes on the contractual maturity date.

(j)See further information on, and our definition and discussion of, Net Debt in this "Non-GAAP Measures and Other Information."

This news release contains forward-looking statements and information that are based on our management's current expectations as of the date of this news release. Statements that are not historical facts are hereby identified as forward-looking statements. In addition, words such as "estimate," "see," "anticipate," "project," "plan," "intend," "believe," "expect," "likely," "predicted," "positioned," "continue," "target," "focus," and any variations of these words and similar expressions are intended to identify forward-looking statements. Such statements include our full year 2025 Outlook and plans, projections, expectations and estimates regarding (1) the value of our business model, strategy, the performance and resilience of our tower business and the drivers for demand for our towers, (2) creation and maximization of shareholder value, (3) our strategic position and the benefits which may be derived therefrom, (4) benefits stemming from our capital allocation framework and investments in our systems and processes, (5) execution of our near-term priorities, (6) leasing activity, (7) net income (loss) (including on a per share basis), (8) AFFO (including on a per share basis) and its components and growth, (9) Adjusted EBITDA and its components and growth, (10) cash flows, (11) Organic Contribution to Site Rental Billings (including as Adjusted for Impact of Sprint Cancellations) and its components and growth, (12) site rental revenues and its components and growth, (13) interest expense, (14) the impact of Sprint Cancellations, (15) our balance sheet, (16) capital expenditures, including discretionary capital expenditures, (17) prepaid rent additions and amortization, and (18) the time and closing of the Fiber Business sale. Any dividends remain subject to the approval of our Board of Directors which has the discretion to determine whether to declare dividends and the amounts and timing of the dividends.

Such forward-looking statements are subject to certain risks, uncertainties and assumptions, including prevailing market conditions and the following:

•Our business depends on the demand for our towers, driven primarily by demand for data, and we may be adversely affected by any slowdown in such demand. Additionally, a reduction in the amount or change in the mix of network investment by our tenants may materially and adversely affect our business (including reducing demand for our towers or services).

•A substantial portion of our revenues is derived from a small number of tenants, and the loss, consolidation or financial instability of any of such tenants may materially decrease revenues, reduce demand for our towers and services and impact our dividend per share growth.

•The expansion or development of our business, including through acquisitions, increased product offerings or other strategic opportunities, may cause disruptions in our business, which may have an adverse effect on our business, operations or financial results.

•Our Fiber Business model contains certain differences from our Towers business model, resulting in different operational risks. If we do not successfully operate our Fiber Business model or identify or manage the related operational risks, such operations may produce results that are lower than anticipated.

•Failure to timely, efficiently and safely execute on our construction projects could adversely affect our business.

•New technologies may reduce demand for our towers or negatively impact our revenues.

•If we fail to retain rights to our towers, including the rights to land under our towers, our business may be adversely affected.

•Our services business has historically experienced significant volatility in demand, which reduces the predictability of our results.

•As a result of competition in our industry, we may find it more difficult to negotiate favorable rates on our new or renewing tenant contracts.

•New wireless technologies may not deploy or be adopted by tenants as rapidly or in the manner projected.

•If radio frequency emissions from wireless handsets or equipment on our towers are demonstrated to cause negative health effects, potential future claims could adversely affect our operations, costs or revenues.

•Cybersecurity breaches or other information technology disruptions could adversely affect our operations, business, and reputation.

•Our business may be adversely impacted by climate-related events, natural disasters, including wildfires, and other unforeseen events.

•Our focus on and disclosure of our Environmental, Social and Governance position, metrics, strategy, goals and initiatives expose us to potential litigation and other adverse effects to our business.

•Failure to attract, recruit and retain qualified and experienced employees could adversely affect our business, operations and costs.

•Changes to management, including turnover of our top executives, could have an adverse effect on our business.

•Actions that we are taking, or have completed, to restructure our business in alignment with our strategic priorities may not be as effective as anticipated.

•Actions of activist stockholders could impact the pursuit of our business strategies and adversely affect our results of operations, financial condition, or stock price.

•The pendency of the sale of our Fiber Business to EQT and Zayo may have an adverse effect on our business, results of operations, cash flows and financial position.

•Completion of the strategic sale of our Fiber Business is subject to the conditions contained in the transaction agreements, including regulatory approvals, which may not be received, and separation of the Fiber Business from our current operations, and if these conditions are not satisfied or waived, the transaction will not be completed.

•The failure to complete the planned sale of the Fiber Business to EQT and Zayo could have a material and adverse effect on our business, results of operations, financial condition, cash flows and stock price.

•Our substantial level of indebtedness could adversely affect our ability to react to changes in our business, and the terms of our debt instruments limit our ability to take a number of actions that our management might otherwise believe to be in our best interests. In addition, if we fail to comply with our covenants, our debt could be accelerated.

•We have a substantial amount of indebtedness. In the event we do not repay or refinance such indebtedness, we could face substantial liquidity issues and might be required to issue equity securities or securities convertible into equity securities, or sell some of our assets, possibly on unfavorable terms, to meet our debt payment obligations.

•Sales or issuances of a substantial number of shares of our common stock or securities convertible into shares of our common stock may adversely affect the market price of our common stock.

•Certain provisions of our amended and restated certificate of incorporation and second amended and restated by-laws, as amended, and operative agreements, and domestic and international competition laws may make it more difficult for a third party to acquire control of us or for us to acquire control of a third party, even if such a change in control would be beneficial to our stockholders.

•If we fail to comply with laws or regulations which regulate our business and which may change at any time, we may be fined or even lose our right to conduct some of our business.

•Future dividend payments to our stockholders will reduce the availability of our cash on hand available to fund future discretionary investments, and may result in a need to incur indebtedness or issue equity securities to fund growth opportunities. In such event, the then current economic, credit market or equity market conditions will impact the availability or cost of such financing, which may hinder our ability to grow our per share results of operations.

•Remaining qualified to be taxed as a REIT involves highly technical and complex provisions of the Code. Failure to remain qualified as a REIT would result in our inability to deduct dividends to stockholders when computing our taxable income, thereby increasing our tax obligations and reducing our available cash.

•Complying with REIT requirements, including the 90% distribution requirement, may limit our flexibility or cause us to forgo otherwise attractive opportunities, including certain discretionary investments and potential financing alternatives.

•REIT related ownership limitations and transfer restrictions may prevent or restrict certain transfers of our capital stock.

Should one or more of these or other risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. More information about potential risk factors which could affect our results is included in our filings with the SEC. Our filings with the SEC are available through the SEC website at www.sec.gov or through our investor relations website at investor.crowncastle.com. We use our investor relations website to disclose information about us that may be deemed to be material. We encourage investors, the media and others interested in us to visit our investor relations website from time to time to review up-to-date information or to sign up for e-mail alerts to be notified when new or updated information is posted on the site.

As used in this release, the term "including," and any variation thereof, means "including without limitation."

(a)Exclusive of depreciation, amortization and accretion shown separately.

(a)Inclusive of cash and cash equivalents and restricted cash and cash equivalents included in discontinued operations.

This supplemental information package ("Supplement") contains forward-looking statements and information that are based on our management's current expectations as of the date of this Supplement. Statements that are not historical facts are hereby identified as forward-looking statements. Words such as "Outlook," "guide," "forecast," "estimate," "anticipate," "project," "plan," "intend," "believe," "expect," "likely," "predicted," "positioned," and any variations of these words and similar expressions are intended to identify such forward looking statements. Such statements include plans, projections and estimates regarding (1) demand for data and our towers, (2) cash flow growth (including from discontinued operations), (3) our Outlook for full year 2025, including Free Cash Flow from Discontinued Operations, (4) our business model, strategy and strategic position, and the value thereof, (5) revenues from tenant contracts, (6) expenses from existing ground leases, (7) the growth of the U.S. market for towers ownership, (8) levels of commitments under our debt instruments, (9) the impact of Sprint Cancellations to our operating and financial results and (10) the closing of the Fiber Strategic Transaction (as defined below).

Such forward-looking statements are subject to certain risks, uncertainties and assumptions, including, but not limited to, prevailing market conditions. Should one or more of these or other risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those expected. Crown Castle assumes no obligation to update publicly any forward-looking statements, whether as a result of new information, future events or otherwise. More information about potential risk factors which could affect our results is included in our filings with the Securities and Exchange Commission ("SEC"). Our filings with the SEC are available through the SEC website at www.sec.gov or through our investor relations website at investor.crowncastle.com. We use our investor relations website to disclose information about us that may be deemed to be material. We encourage investors, the media and others interested in us to visit our investor relations website from time to time to review up-to-date information or to sign up for e-mail alerts to be notified when new or updated information is posted on the site.

This Supplement contains certain figures, projections and calculations based in part on management's underlying assumptions. Management believes these assumptions are reasonable; however, other reasonable assumptions could provide differing outputs.

The components of forward looking financial information presented herein may not sum due to rounding. In addition, the sum of quarterly historical information presented herein may not agree to year to date historical information provided herein due to rounding. Throughout this document, percentage calculations, which are based on non-rounded dollar values, may not be able to be recalculated using the dollar values included in this document due to the rounding of those dollar values.

Definitions and reconciliations of non-GAAP financial measures, information regarding segment measures and other information are provided in the Appendix to this Supplement.

As used herein, the term "including" and any variation thereof, means "including without limitation." The use of the word "or" herein is not exclusive.

Crown Castle Inc. (to which the terms "Crown Castle," "CCI," "we," "our," "the Company" or "us" as used herein refer) owns, operates and leases shared communications infrastructure that is geographically dispersed throughout the U.S., including (1) approximately 40,000 towers and other structures, such as rooftops (collectively, "towers"), (2) approximately 105,000 small cells on air or under contract and (3) approximately 90,000 route miles of fiber primarily supporting small cells and fiber solutions. We refer to our towers, small cells and fiber assets collectively as "communications infrastructure," and to our customers on our communications infrastructure as "tenants." We provide access, including space or capacity, to our communications infrastructure via long-term contracts in various forms, including lease, license, sublease and service agreements (collectively, "tenant contracts").

Our towers have a significant presence in each of the top 100 basic trading areas, and the majority of our small cells and fiber assets are located in major metropolitan areas, including a presence in most U.S. markets. We seek to increase our site rental revenues by adding more tenants to our existing towers, which we expect to result in significant incremental cash flows due to our low incremental operating costs.

On March 13, 2025, management signed a definitive agreement ("Strategic Fiber Agreement") to sell our small cells and fiber solutions businesses, together with certain supporting assets and personnel ("Fiber Business"), with Zayo Group Holdings Inc. ("Zayo") acquiring the fiber solutions business and EQT Active Core Infrastructure fund ("EQT") acquiring the small cells business ("Strategic Fiber Transaction"). Under the Strategic Fiber Agreement, we will receive $8.5 billion in aggregate, subject to certain closing adjustments. Pending the closing of the Strategic Fiber Transaction, we will continue to operate the Fiber Business in accordance with the Strategic Fiber Agreement.

The results and net assets of the Fiber Business are presented within the financial statements as discontinued operations, with comparable prior periods recast to reflect this change. Following the classification of the Fiber Business as discontinued operations, the Company has one reportable segment that constitutes consolidated results consisting of its towers operations. Unless otherwise noted and other than net income (loss) and net income (loss) per share, all activities and amounts reported below relate to the continuing operations of the Company and exclude activities and amounts related to discontinued operations.

We operate as a Real Estate Investment Trust ("REIT") for U.S. federal income tax purposes.

As a leading provider of towers in the U.S., our strategy is to create long-term stockholder value via a combination of (1) growing cash flows generated from our existing portfolio of towers, (2) returning a meaningful portion of our cash generated by operating activities to our common stockholders in the form of dividends and share repurchases and (3) investing capital efficiently to grow cash flows. Our strategy is based, in part, on our belief that the U.S. is the most attractive market in the world for towers. We measure our efforts to create "long-term stockholder value" by the combined payments of dividends to stockholders and growth in our per-share results. The key elements of our strategy are to:

•Grow cash flows from our existing towers. We are focused on maximizing the recurring site rental cash flows generated from providing our tenants with long-term access to our towers, which we believe is the core driver of value for our stockholders. Tenant additions or modifications of existing tenant equipment (collectively, "tenant additions") enable our tenants to expand coverage and capacity in order to meet increasing demand for data while generating high incremental returns for our business. We believe our towers provide an efficient and cost-effective solution for our wireless tenants' growing networks that provides an opportunity to generate cash flows and increase stockholder return.

•Return cash generated by operating activities to stockholders in the form of dividends and share repurchases. We believe that distributing a meaningful portion of our cash generated by operating activities appropriately provides stockholders with increased certainty for a portion of expected long-term stockholder value while still allowing us to retain sufficient flexibility to invest in our business and deliver growth. We believe this decision reflects the translation of the high-quality, long-term contractual cash flows of our business into stable capital returns to stockholders.

•Invest capital efficiently to grow cash flows. In addition to adding tenants to our existing towers, we seek to invest our available capital, including the net cash generated by our operating activities and external financing sources, in a manner that will increase long-term stockholder value. These investments include acquisition of land interests, making improvements and structural enhancements to our existing towers, and constructing and acquiring new towers that we expect will generate future cash flow growth and attractive long-term returns by adding tenants to those assets over time.

Our strategy to create long-term stockholder value is based on our belief that there will be considerable future demand for our towers based on the location of our assets and the rapid and continuing growth in the demand for data. We believe that such demand for our towers will continue, will result in growth of our cash flows due to tenant additions on our existing towers, and will create other growth opportunities for us, such as demand for newly constructed or acquired towers, as described above. Further, we seek to augment the long-term value creation associated with growing our recurring site rental cash flows by offering certain ancillary site development services.

(a)Based on the sales price, adjusted for common stock dividends, as reported by Bloomberg.

(b)Based on the period end closing price, adjusted for common stock dividends, as reported by Bloomberg.

(c)Calculated as the product of (1) common shares outstanding, at period end and (2) period end closing price, adjusted for common stock dividends, as reported by Bloomberg.