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ITEM 4.01 – CHANGES IN REGISTRANT’S CERTIFYING ACCOUNTANT

On December 8, 2010, the Audit Committee of Crown Castle International Corp. (“Company”) approved the dismissal of KPMG LLP (“KPMG”) as the Company’s independent registered public accountants. KPMG’s engagement will end upon completion of its audit of the Company’s financial statements as of and for the year ending December 31, 2010. In addition, on December 8, 2010, the Audit Committee approved the engagement of PricewaterhouseCoopers LLP (“PwC”) as the Company’s independent registered public accountants for the fiscal year ending December 31, 2011.

The audit reports of KPMG on the consolidated financial statements of the Company as of and for the years ended December 31, 2009 and 2008 (“Financial Statements Reports”) did not contain an adverse opinion or a disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope or accounting principles. The Financial Statements Reports contained a separate paragraph noting that, in accordance with Generally Accepted Accounting Principles, “The Company adopted the provisions of Statement of Financial Accounting Standards No. 157, Fair Value Measurements (included in FASB ASC Topic 820, Fair Value Measurements and Disclosures), effective January 1, 2008.” The audit reports of KPMG on the effectiveness of internal control over financial reporting as of December 31, 2009 and 2008 did not contain any adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, audit scope, or accounting principles.

During the fiscal years ended December 31, 2009 and 2008 and the subsequent interim periods through December 8, 2010, (1) there were no disagreements with KPMG on any matter of accounting principles or practices, financial statement disclosure, or auditing scope or procedure that, if not resolved to KPMG’s satisfaction, would have caused KPMG to make reference in connection with their opinion to the subject matter of the disagreement and (2) there were no “reportable events” as defined in item 304(a)(1)(v) of Regulation S-K.

During the fiscal years ended December 31, 2009 and 2008 and the subsequent interim periods through December 8, 2010, neither the Company nor anyone on its behalf consulted PwC regarding either (1) the application of accounting principles to a specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on the Company’s financial statements, and no written report or oral advice was provided to the Company that PwC concluded was an important factor considered by the Company in reaching a decision as to the accounting, auditing or financial reporting issue or (2) any matter that was the subject of a disagreement or reportable event as defined in Regulation S-K, Item 304(a)(1)(iv) and Item 304(a)(1)(v), respectively.

The Company provided KPMG with a copy of this Current Report on Form 8-K prior to its filing with the Securities and Exchange Commission (“SEC”) and requested that KPMG furnish a letter addressed to the SEC stating whether it agrees with the statements made herein. A copy of KPMG’s letter is filed as Exhibit 16.1 hereto.

ITEM 9.01 — FINANCIAL STATEMENTS AND EXHIBITS

(c) Exhibits

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

CROWN CASTLE INTERNATIONAL CORP.

By: /s/ E. Blake Hawk            
Name: E. Blake Hawk
Title: Executive Vice President
and General Counsel

Date: December 13, 2010

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EXHIBIT INDEX

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