EX 23
Form 11-K for 2016
File No. l-8610
Consent of Independent Registered Public Accounting Firm
We consent to the incorporation by reference in the Registration Statement (Form S-8, No. 333-189789) pertaining to the AT&T Puerto Rico Retirement Savings Plan of our report dated June 22, 2017, with respect to the financial statements and schedule of the AT&T Puerto Rico Retirement Savings Plan included in this Annual Report (Form 11-K) for the year ended December 31, 2016.
Dallas, Texas /s/ Ernst & Young LLP
June 22, 2017
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