Citizens Republic Bancorp Extends Multimillion-Dollar Voice and Data Networking Deal with AT&T

Michigan's Largest Bank Holding Company to Control Costs by Streamlining Traffic Onto a Single Set of Optimized Network Services

Flint, Michigan, April 15, 2008

AT&T Inc. (NYSE:T) has announced that Citizens Republic Bancorp has extended its contract with AT&T for network and conferencing services for the next five years. The multimillion-dollar agreement will enable AT&T to merge all of the financial company's locations onto a single Internet Protocol (IP)-based platform, which will enhance network efficiency and control voice and data service costs.

With nearly 250 locations, which offer a wide set of financial services, throughout Michigan, Ohio, Wisconsin and Iowa, Citizens Republic Bancorp is one of the leading financial services companies in the United States. AT&T will migrate all Citizens locations onto AT&T's Multiprotocol Label Switching (MPLS)-backed network. The new network services will create a single connection for all the Citizens locations that are fully managed and maintained by AT&T. The services will also provide optimized network performance while positioning Citizens for future advanced voice and video-transmission technology.

"AT&T's solution allows us to serve our clients with the efficiency and ease of one of the most reliable networks while controlling our voice and data service costs," said Jerry Bettens, chief information officer, Citizens Republic Bancorp.

To further secure its newly integrated network services, Citizens Republic Bancorp purchased AT&T's SONET Ring service. As a leader in business-continuity planning, Citizens Republic Bancorp will protect its critical financial information with AT&T's SONET Ring architecture, which creates a redundant circular network cycle and is monitored around-the-clock by AT&T specialists.

Note: This AT&T news release and other announcements are available as part of an RSS feed at www.att.com/rss.

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About Citizens Republic Bancorp
Citizens Republic Bancorp, Inc. is a diversified financial services company providing a wide range of commercial, consumer, mortgage banking, trust and financial planning services to a broad client base. Citizens Republic serves communities in Michigan, Ohio and Wisconsin as Citizens Bank and in Iowa as F&M Bank, with 238 offices and 268 ATMs. Citizens Republic is the largest bank holding company headquartered in Michigan with roots dating back to 1871. Citizens Republic is the 41st largest bank holding company headquartered in the United States. More information about Citizens is available at www.citizensbanking.com.

About AT&T
AT&T Inc. (NYSE:T) is a premier communications holding company. Its subsidiaries and affiliates, AT&T operating companies, are the providers of AT&T services in the United States and around the world. Among their offerings are the world's most advanced IP-based business communications services and the nation's leading wireless, high speed Internet access and voice services. In domestic markets, AT&T is known for the directory publishing and advertising sales leadership of its Yellow Pages and YELLOWPAGES.COM organizations, and the AT&T brand is licensed to innovators in such fields as communications equipment. As part of its three-screen integration strategy, AT&T is expanding its TV entertainment offerings. Additional information about AT&T Inc. and the products and services provided by AT&T subsidiaries and affiliates is available at www.att.com.

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