AT&T will webcast a keynote address by Randall Stephenson, Chairman and Chief Executive Officer, AT&T Inc., at the UBS Global Media and Communications Conference in New York, N.Y. on Tuesday, December 10 at 8:00 a.m. ET. The webcast will be available live and for replay at AT&T Investor Relations. About AT&T AT&T Inc. (NYSE:T) is a premier communications holding company and one of the most honored companies in the world. Its subsidiaries and affiliates – AT&T operating companies – are the providers of AT&T services in the United States and internationally. With a powerful array of network resources that includes the nation’s fastest and most reliable 4G LTE network, AT&T is a leading provider of wireless, Wi-Fi, high speed Internet, voice and cloud-based services. A leader in mobile Internet, AT&T also offers the best wireless coverage worldwide of any U.S. carrier, offering the most wireless phones that work in the most countries. It also offers advanced TV service with the AT&T U-verse ® brand. The company’s suite of IP-based business communications services is one of the most advanced in the world. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at http://www.att.com/aboutus or follow our news on Twitter at @ATT, on Facebook at http://www.facebook.com/att and YouTube at http://www.youtube.com/att. © 2013 AT&T Intellectual Property. All rights reserved. AT&T, the AT&T logo and all other marks contained herein are trademarks of AT&T Intellectual Property and/or AT&T affiliated companies. All other marks contained herein are the property of their respective owners. 4G LTE speed claim based on national carriers’ average 4G LTE download speeds. Reliability claim based on data transfer completion rates on nationwide 4G LTE networks. 4G LTE availability varies.