AT&T TO RELEASE THIRD-QUARTER 2018 EARNINGS BEFORE MARKET OCTOBER 24

*About AT&T

AT&T Inc. (NYSE:T) is a diversified, global leader in telecommunications, media and entertainment, and technology. It executes in the market under four operating units. WarnerMedia’s HBO, Turner and Warner Bros. divisions are world leaders in creating premium content, operate the world’s largest TV and film studio, and own a world-class library of entertainment. AT&T Communications provides more than 100 million U.S. consumers with entertainment and communications experiences across TV, mobile and broadband services. Plus, it serves more than 3 million business customers with high-speed, highly secure connectivity and smart solutions. AT&T Latin America provides pay-TV services across 11 countries and territories in Latin America and the Caribbean, and is the fastest growing wireless provider in Mexico, serving consumers and businesses. AT&T ad and analytics provides marketers with innovative, targeted, data-driven advertising solutions around premium video content.

AT&T products and services are provided or offered by subsidiaries and affiliates of AT&T Inc. under the AT&T brand and not by AT&T Inc. Additional information is available at about.att.com. © 2018 AT&T Intellectual Property. All rights reserved. AT&T, the Globe logo and other marks are trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners.