Mike McCallister Joins AT&T Board of Directors

  Mike McCallister Joins AT&T Board of Directors

Business Wire

DALLAS -- February 1, 2013

AT&T Inc. (NYSE:T) has appointed Mike McCallister to its board of directors.
Mr. McCallister recently retired as CEO of Humana Inc. and continues to serve
as chairman of its board of directors. He will serve on the Audit Committee of
AT&T’s Board of Directors.

“Mike is an outstanding business executive and one of the health care
industry’s true innovators,” said Randall Stephenson, AT&T chairman and chief
executive officer. “Under his leadership, Humana significantly transformed its
business and is now a leader in delivering health care to individuals. His
experience and insights will be valuable additions to our board of directors.”

Mr. McCallister joined Humana in 1974 and served as CEO from 2000 to 2012.
During his tenure as CEO, the company nearly quadrupled its annual revenues.

Mr. McCallister serves on the boards of Fifth Third Bank and Bellarmine
University. He is also a former board member of the Business Roundtable, as
well as a past chairman of its Health and Retirement Task Force. Mr.
McCallister holds a B.S. in accounting from Louisiana Tech University and an
MBA from Pepperdine University.

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affiliates of AT&T Inc. under the AT&T brand and not by AT&T Inc.

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 largest 4G 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 services under the AT&T U-verse^® and AT&T │DIRECTV
brands. The company’s suite of IP-based business communications services is
one of the most advanced in the world.

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