AT&T Invests in Indiana Network to Deliver Most-Advanced Mobile Broadband Experience

INDIANAPOLIS, Sept. 7, 2011 /PRNewswire/ — AT&T* today announced plans to add
and upgrade cell sites across Indiana as part of its 2011 initiative to deliver
the nation’s most-advanced mobile broadband experience. Already, AT&T has
expanded coverage in more than 15 communities across Indiana. AT&T invested more
than $150 million in its Indiana wireless and wireline networks in the first
half of 2011.

The Indiana network enhancements are part of AT&T’s plan to invest in the
$20-billion range in its national wireless and wireline networks. The investment
will support plans to enable 4G speeds over an increasing portion of the country
throughout the year, including the planned initial launch of LTE beginning
mid-year and the deployment of enhanced backhaul connections that enable 4G
speeds**.

“The need for enhanced wireless coverage continues to increase as more and more
businesses rely on mobile devices to stay connected with their customers,” said
Lieutenant Governor Becky Skillman. “In a competitive environment where speed
and reliability are critical, it’s great to see companies like AT&T investing in
their customer experience here in Indiana and enabling other companies to grow
their operations through the use of wireless technology.”

Already this year, AT&T has expanded its mobile broadband network in 15
communities across the state including:

Kokomo, Sharpsville, Indian Heights, Van Buren, Fowlerton, Pine Village, South
Bloomington, Auburn, Goshen, Elkhart, Huntington, Fort Wayne, Granger, South
Bend, and Warsaw.

So far in 2011, AT&T has also added more wireless network capacity in the
following 41 communities across Indiana:

Indianapolis, Speedway, Lawrence, Carmel, Fishers, Noblesville, Zionsville,
Lebanon, Westfield, Beech Grove, Shelbyville, Greenfield, New Palestine,
Southport, Greenwood, Plainfield, Coatesville, Martinsville, Mooresville,
Brownsburg, Anderson, Edgewood, Pendleton, Bloomington, Crawfordsville, Kokomo,
Lafayette, West Lafayette, Muncie, Marion, Terre Haute, Fort Wayne, Huntington,
Auburn, Goshen, Elkhart, Granger, Mishawaka, New Haven, South Bend, and Warsaw.

The 2011 investment will also support the build and upgrade of thousands of cell
sites nationwide designed to increase network speed, coverage and reliability
for both mobile voice and broadband services. AT&T also plans to install
additional radio “carriers” at more than 30,000 cell sites nationally this year,
enabling new layers of spectrum capacity to carry larger volumes of mobile
broadband traffic. This additional capacity enables AT&T to support rising
mobile data traffic volumes, which have increased more than 8,000 percent over
the past four years.

Today’s announcement builds on the momentum established with AT&T’s 2010
wireless investment, when it added 13 new cell sites in Indiana and upgraded 61
existing sites to mobile broadband. From 2008 through 2010, AT&T’s capital
investment in its Indiana wireless and wireline networks was nearly $925
million.

“Indiana is a great place to do business because our leaders like Lieutenant
Governor Skillman and Governor Daniels understand that capital investment in a
more advanced mobile broadband experience drives economic growth, stimulates
jobs and equips Indiana businesses to meet the network demands of today and
tomorrow,” said AT&T Indiana President George S. Fleetwood. “We’ve significantly
ramped up our wireless investments to enable an experience that offers Indiana
consumers better speed, better reliability and better availability.”

Across the country, AT&T also continues to drive innovation in network
technologies to provide maximum efficiency and performance for customers. In
2011, AT&T will focus on continuing to enhance its wireless network forecasting
capabilities to better predict usage trends and build network capacity to always
stay one step ahead of customer need. AT&T also continues to pioneer broadband
solutions for high-traffic areas like stadiums and public places, deploying
technologies including Distributed Access System networks and AT&T Wi-Fi
hotzones.

“Smartphones, tablets and laptops are continuing to drive unprecedented demand
for wireless access everywhere,” said Brian Ducharme, vice president and general
manager for AT&T Indiana and Michigan. “We’re investing in and deploying a
combination of technologies to meet these needs and ensure an advanced broadband
experience. In addition, our recently announced agreement to acquire T-Mobile
USA also represents a major commitment to strengthen and expand our network in
Indiana. If approved, this deal means that we’ll be able to expand the next
generation of mobile broadband – 4G LTE – from our current plan of 80 percent of
the U.S. population to more than 97 percent.”

AT&T operates the nation’s largest Wi-Fi network*** with nearly 27,000 hotspots
in the U.S. and provides access to nearly 190,000 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 doesn’t count
against customers’ monthly wireless data plans.

AT&T’s mobile broadband 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 broadest
international coverage of any U.S. wireless provider, providing access to voice
service in more than 220 countries and data service in more than 200 countries.

AT&T recently launched “Focus: Indianapolis,” which provides visitors a peek
into AT&T’s wireless network enhancements made since the beginning of the year.
Enhancements include new cell sites, broadband speed upgrades, capacity upgrades
and network connection upgrades. The site also provides a map of area AT&T
stores, a map of area Wi-Fi hotspots, useful tips, a localized Twitter handle
and device reviews. You can visit the site at http://focus.att.com/indy/.

For more information about AT&T’s coverage in Indiana or anywhere in the United
States, consumers can visit the AT&T Coverage Viewer.

For updates on the AT&T wireless network, please visit the AT&T network news
page.

*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.

** 4G speeds delivered by HSPA+ with enhanced backhaul. Available in limited
areas. Availability increasing with ongoing backhaul deployment. Requires 4G
device. Learn more at att.com/network.

*** Largest based on company branded and operated hotspots. Access includes AT&T
Wi-Fi Basic. A Wi-Fi enabled device required. Other restrictions apply. See
www.attwifi.com for details and locations.

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. With a powerful array
of network resources that includes the nation’s fastest mobile broadband
network, AT&T is a leading provider of wireless, Wi-Fi, high speed Internet,
voice and cloud-based services. A leader in mobile broadband and emerging 4G
capabilities, 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. In domestic markets, AT&T Advertising
Solutions and AT&T Interactive are known for their leadership in local search
and advertising.

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. This AT&T
news release and other announcements are available at
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© 2011 AT&T Intellectual Property. All rights reserved. Mobile broadband not
available in all areas. 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.

Cautionary Language Concerning Forward-Looking Statements

Information set forth in this news release contains financial estimates and
other forward-looking statements that are subject to risks and uncertainties,
and actual results may differ materially. A discussion of factors that may
affect future results is contained in AT&T’s filings with the Securities and
Exchange Commission. AT&T disclaims any obligation to update or revise
statements contained in this news release based on new information or otherwise.

SOURCE AT&T Inc.