AT&T Wireless 2010 Annual Report Download - page 99

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AT&T Inc. 97
Report of Independent Registered Public Accounting Firm
The Board of Directors and Stockholders of AT&T Inc.
We have audited the accompanying consolidated balance sheets of AT&T Inc. (the Company) as of December 31, 2010 and 2009,
and the related consolidated statements of income, changes in stockholders’ equity, and cash flows for each of the three years
in the period ended December 31, 2010. These financial statements are the responsibility of the Company’s management.
Our responsibility is to express an opinion on these financial statements based on our audits.
We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States).
Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial
statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and
disclosures in the financial statements. An audit also includes assessing the accounting principles used and significant estimates
made by management, as well as evaluating the overall financial statement presentation. We believe that our audits provide a
reasonable basis for our opinion.
In our opinion, the financial statements referred to above present fairly, in all material respects, the consolidated financial
position of the Company at December 31, 2010 and 2009, and the consolidated results of its operations and its cash flows for
each of the three years in the period ended December 31, 2010, in conformity with U.S. generally accepted accounting principles.
As discussed in Note 1 to the consolidated financial statements, the Company has elected to change its method of accounting
for actuarial gains and losses and the calculation of expected return on plan assets related to its pension and other
postretirement benefit plans in 2010.
We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States),
the Company’s internal control over financial reporting as of December 31, 2010, based on criteria established in Internal
Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission and our
report dated February 28, 2011 expressed an unqualified opinion thereon.
Dallas, Texas
February 28, 2011