Exhibit 23
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We hereby consent to the incorporation by reference in the Registration Statements on Form S-8 (Nos. 333-215218, 333-168419, 333-133927, 333-126734, 333-66000, 333-41458, 333-78417, 333-30375, 333-29899, 333-4808) of ADTRAN, Inc. of our report dated February 28, 2019, except with respect to our opinion on internal control over financial reporting insofar as it relates to the effects of the matter described in the penultimate paragraph of Management’s Report on Internal Control over Financial Reporting, as to which the date is September 20, 2019, relating to the financial statements and financial statement schedule and the effectiveness of internal control over financial reporting, which appears in this Form 10-K/A.
/s/ PricewaterhouseCoopers LLP |
Birmingham, Alabama |
September 20, 2019 |