AT&T Wireless to Provide Wireless Priority Service

BASKING RIDGE, N.J., July 27 /PRNewswire-FirstCall/ — AT&T Wireless announced today that it has signed a contract to provide Wireless Priority Service (WPS), which helps national security officials, emergency responders, and those in critical infrastructure industries communicate during times of emergency.

WPS works by giving a limited number of government-authorized wireless phone users priority access to the wireless network. If wireless network capacity is strained during an emergency, the authorized users’ emergency calls are the first to go through. In essence, these calls are moved to the “front of the line” so that they may be completed using the next available wireless channel.

The National Communications System (NCS) oversees the WPS program. The NCS approves key personnel for WPS in accordance with criteria approved by the Federal Communications Commission. In order to take advantage of WPS, the government-authorized users simply dial *272 before placing a call.

“The Wireless Priority Service is a critical communications resource for national security and emergency preparedness. The addition of AT&T Wireless to the list of WPS carriers is an important expansion of this program and the program office is extremely pleased to enter into this contract,” said John Graves, the government WPS program director.

“We recognize the role wireless carriers can play in promoting homeland security and we take this obligation extremely seriously,” said Chris Hill, vice president of AT&T Wireless’ government markets unit. “We are committed to supporting our government customers and WPS is an important part of our overall suite of government solutions.”

AT&T Wireless’ goal in providing WPS is to balance the communications needs of key national security and emergency preparedness personnel with those of the general public. WPS does not interrupt calls that are already in progress.

AT&T Wireless will implement WPS on a phased-in basis, beginning with the city of Boston and the Democratic National Convention. Future deployment locations will include AT&T Wireless markets nationwide.

About AT&T Wireless

AT&T Wireless is the second-largest wireless carrier, based on revenues, in the United States. With 21.737 million subscribers as of June 30, 2004, and revenues of more than $16.8 billion over the past four quarters, AT&T Wireless delivers advanced high-quality mobile wireless communications services, voice and data, to businesses and consumers, in the U.S. and internationally.

Forward Looking Statements

This press release contains “forward-looking statements” which are based on management’s beliefs as well as on a number of assumptions concerning future events made by management with information that is currently available to management. Forward-looking statements may include, without limitation, management’s expectations regarding: our future financial and operating performance and financial condition, including the company’s outlook for the fiscal year 2004 and subsequent periods; the outcome of our pending transaction with Cingular; subscriber growth; industry conditions; the strength of our balance sheet; our liquidity and needs for additional financing; and our ability to increase revenue, margins and operating free cash flow.

Readers are cautioned not to put undue reliance on such forward-looking statements, which are not a guarantee of performance and are subject to a number of uncertainties and other factors, many of which are outside AT&T Wireless’ control, that could cause actual results to differ materially from such statements. Without limitation these factors include: the risks associated with the implementation of our technology migration strategy, uncertainty concerning the effects of our pending transaction with Cingular, our ability to continue to reduce costs and increase the efficiency of our distribution channels, the potential competitive impacts of industry consolidation or alternative technologies, potential impacts on revenue and ARPU from competitive pricing and slowing penetration in the wireless industry, the effects of vigorous competition in the markets in which we operate, the risk of decreased consumer spending due to softening economic conditions, acts of terrorism, and consumer response to new service offerings.

For a more detailed description of the factors that could cause such a difference, please see AT&T Wireless’ filings with the Securities and Exchange Commission, including the information under the heading “Additional Factors That May Affect Our Business, Future Operating Results and Financial Condition” and “Forward Looking Statements” in its annual report on Form 10-K filed on March 5, 2004.

For Further Information:

Ritch Blasi Mark Siegel

908-696-4242 – office 908-696-4218 – office

908-612-1760- wireless 646-256-1277 – wireless

ritch.blasi@attws.com mark.siegel@attws.com

AT&T Wireless

CONTACT: Ritch Blasi, +1-908-696-4242, or wireless, +1-908-612-1760,ritch.blasi@attws.com, or Mark Siegel, +1-908-696-4218, or wireless,+1-646-256-1277, mark.siegel@attws.com, both of AT&T Wireless

Web site: http://www.attws.com/