ADTRAN, Inc. to Release Second Quarter Earnings on July 18, 2017

ADTRAN, Inc. ADTN announced today that the Company will release its financial results for the second quarter 2017 after market close on Tuesday, July 18, 2017. The Company will conduct a conference call on Wednesday, July 19, 2017 to discuss the results for the quarter.

ADTRAN will webcast this conference call live through the Q4 Inc. webcasting service. To listen, simply visit the Investor Relations site at www.adtran.com/investor approximately 10 minutes prior to the start of the call and click on the conference call link provided. An online replay of the conference call, as well as the text of the Company's earnings release, will be available on the Investor Relations site for at least 12 months following the call.

ADTRAN, Inc. is a leading global provider of networking and communications equipment. ADTRAN's products enable voice, data, video and Internet communications across a variety of network infrastructures. ADTRAN solutions are currently in use by service providers, private enterprises, government organizations, and millions of individual users worldwide.

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