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For more information, contact:

Jermaine SpightSenior Public Relations Manager

313.223.7779Jermaine.spight@att.com

AT&T EXPANDS MOBILE INTERNET WIRELESS CAPACITY IN ANN

ARBOR & YPSILANTIAdditional Spectrum Expected to Improve Connectivity and Performance of Mobile Internet Data

and Voice Connectivity

ANN ARBOR, MICH., July 13, 2012 Customers in Ann Arbor and Ypsilanti are expected to

experience improvedmobile Internet coverage and voice performance as a result of continued

investment and innovation byAT&T. The company announced today that it has completed a key

initiative in its ongoing efforts to enhance the wireless capacity and performance of its mobile Internet

network in Ann Arbor and Ypsilanti.

Ann Arbor and Ypsilanti can be proud of this additional investment from AT&T, said state Sen.

Rebekah Warren (D-Ann Arbor). Expanded hi-speed broadband coverage not only boosts our

wireless signals, it will boost our ability to grow the economy and attract investment.

The network enhancement adds new layers of frequency, also known as carriers, to six cell sites,

three in Ann Arbor and three in Ypsilanti, to more efficiently manage available spectrum and increase

mobile broadband capacity. The expansion helps manage ever-growing demand for mobile Internet

services by allocating more network resources forAT&Ts mobile Internet network.

Our goal is for our customers to have an extraordinary experience. As part of the Washtenawcommunity, were always looking for new opportunities to provide an enhanced customer experience

and our investment in the local wireless network is just one way were accomplishing that, said Jim

Murray, president of AT&T Michigan.

http://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/landing-pages?pid=3309http://www.att.com/gen/landing-pages?pid=3309http://www.att.com/gen/landing-pages?pid=3309http://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=1941http://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.att.com/gen/landing-pages?pid=3309http://www.att.com/gen/press-room?pid=1941

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AT&Ts mobile Internet network is based on the 3rd Generation Partnership Project (3GPP) family of

technologies that includes GSM and UMTS, the most widely used wireless network platforms in the

world. AT&T has the bestinternational coverage of any U.S. wireless provider, providing access to

voice service in more than 225 countries and data service in more than 200 countries.

AT&T also operatesthe nations largest Wi-Fi network** with nearly 30,000 hotspots in the U.S. and

provides access to nearly 225,000 hotspots globally through roaming agreements. Most AT&T

smartphone customers get access to our entire national Wi-Fi network at no additional cost, and Wi-Fi

usage doesnt count against customers monthly wireless data plans.

Visitors to our local network site,http://att.com/DetroitNetwork , get a peek into AT&T's wireless network

enhancements made since January 2011. Enhancements include new cell sites, Internet speed

upgrades, capacity upgrades and network connection upgrades.

For more information about AT&Ts coverage in [market] or anywhere in the United States, consumers

can visit theAT&T Coverage Viewer.

For updates on the AT&T wireless network, please visit theAT&T network newspage.

Find More Information Online:

Web Site Links: Related Media Kits:

AT&T Web SiteAT&T Wireless Web SiteAbout the AT&T Network

Wireless Networks

AT&T Wireless Network News

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Infographic: 2011 Network Investment

AT&T Coverage Viewer

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*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.

http://www.wireless.att.com/learn/international/index.jsphttp://www.wireless.att.com/learn/international/index.jsphttp://www.att.com/gen/general?pid=13540&GUID=5be8deda-4a0e-47e1-a003-1051f43ae86dhttp://www.att.com/gen/general?pid=13540&GUID=5be8deda-4a0e-47e1-a003-1051f43ae86dhttp://www.att.com/gen/general?pid=13540&GUID=5be8deda-4a0e-47e1-a003-1051f43ae86dhttp://www.att.com/gen/general?pid=13540&GUID=5be8deda-4a0e-47e1-a003-1051f43ae86dhttp://att.com/DetroitNetworkhttp://att.com/DetroitNetworkhttp://att.com/DetroitNetworkhttp://www.wireless.att.com/coverageviewer/http://www.wireless.att.com/coverageviewer/http://www.att.com/networknewshttp://www.att.com/networknewshttp://www.att.com/networknewshttp://www.att.com/http://www.wireless.att.com/cell-phone-service/welcome/index.jsphttp://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.att.com/gen/press-room?pid=1941http://www.att.com/gen/press-room?pid=2943http://www.att.com/gen/press-room?pid=2943http://www.att.com/Common/about_us/pdf/network_investment_infographic.pdfhttp://www.att.com/Common/about_us/pdf/network_investment_infographic.pdfhttp://www.wireless.att.com/coverageviewer/#?type=voicehttp://www.att.com/rethinkpossiblehttp://www.att.com/rethinkpossiblehttp://www.att.com/rethinkpossiblehttp://www.wireless.att.com/coverageviewer/#?type=voicehttp://www.att.com/Common/about_us/pdf/network_investment_infographic.pdfhttp://www.att.com/gen/press-room?pid=2943http://www.att.com/gen/press-room?pid=1941http://www.wireless.att.com/learn/why/technology/3g-umts.jsphttp://www.wireless.att.com/cell-phone-service/welcome/index.jsphttp://www.att.com/http://www.att.com/networknewshttp://www.wireless.att.com/coverageviewer/http://att.com/DetroitNetworkhttp://www.att.com/gen/general?pid=13540&GUID=5be8deda-4a0e-47e1-a003-1051f43ae86dhttp://www.wireless.att.com/learn/international/index.jsp

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** Largest based on company branded and operated hotspots. Access includes AT&T Wi-Fi Basic. A Wi-Fi enabled device

required. Other restrictions apply. Seewww.attwifi.comfor details and locations.

About AT&T

AT&T Inc. (NYSE:T) is a premier communications holding company andone of the most honored companies in

the world. Its subsidiaries and affiliates AT&T operating companies are the providers of AT&T services in theUnited States and around the world. With a powerful array of network resources that includes the nations largest4G 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-

verseand AT&T DIRECTV brands. The companys suite ofIP-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 athttp://www.att.com. This AT&T news release and other announcements are available at

http://www.att.com/newsroomand as part of an RSS feed atwww.att.com/rss. Or follow our news on Twitter at

@ATT.

2012 AT&T Intellectual Property. All rights reserved. 4G not available everywhere. 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.

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