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AT&T Nears Completion of 3G Wireless Technology Deployment That Delivers Broadband Wireless Speeds - for Downloads and Uploads

AT&T Will Be First in U.S. to Fully Deploy HSPA Technology in Its Wireless Network, Giving Customers Unsurpassed Speeds of up to 1.4 Mbps (Down), 800 Kbps (Up)

HSPA Technology Gives AT&T Competitive Advantage, Clear Path to LTE Standards in Years Ahead

San Antonio, Texas, May 21, 2008 : By the end of June, connecting to AT&T's 3G mobile broadband service will be as speedy as logging onto the high speed Internet service that many consumers enjoy at home.

AT&T Inc. (NYSE:T) today announced that, in the next month, the company will deploy High Speed Uplink Packet Access (HSUPA) technology in the six remaining markets across AT&T's entire 3G (third-generation) wireless broadband network. When done, AT&T will have completed its deployment of HSUPA technology, which complements existing HSDPA technology (High Speed Downlink Packet Access), making AT&T the only U.S. carrier to have fully deployed HSPA technology in its 3G network.

Today the superfast AT&T 3G network is available in more than 275 markets. By year-end, the AT&T 3G network will be available in nearly 350 markets.

With the new addition of HSUPA technology, AT&T 3G users can enjoy uplink speeds between 500 and 800 Kbps. The technology is available in all but the few remaining AT&T 3G markets and will be included in all future deployments. The new upload speeds complement AT&T's 3G download capabilities, which currently offer up to 1.4 Mbps across all markets for customers who have capable devices, such as AT&T's LaptopConnect wireless modems.

"The ability to quickly upload large files from a laptop is no longer a luxury — it's a necessity," said Kris Rinne, senior vice president of Architecture and Planning for AT&T's wireless operations. "By fully deploying HSUPA across our 3G footprint, we not only meet the current needs of our customers but also lay the path for our continued evolution to even faster wireless broadband capabilities."

Between 2005 and 2008, AT&T will have invested more than $20 billion in network improvements and upgrades — an average of $5 billion a year. AT&T recently turned down its older TDMA network, and that will allow the company to reuse valuable 850 MHz spectrum to expand and enhance 3G markets.

The company's HSPA network is the best-positioned among American carriers to grow in line with customer demand, evolving to HSPA+ and providing next-generation speeds without costly investments. AT&T plans to adopt LTE (Long Term Evolution) technology to reach even higher speeds in the long term.

AT&T has the largest digital voice and data network in the U.S. In addition, only AT&T can offer 3G roaming in 60 countries, including Japan and South Korea, and voice calling in more than 200 countries.

Equally as important as the network is the device through which a customer experiences it. AT&T's handset portfolio in company-owned stores is more than 75 percent 3G-capable — and will be even more enticing with the addition of more 3G-enabled smartphones in the summer and fall of 2008. Additionally, AT&T also has the most compelling set of 3G services, such as AT&T Video ShareSM, which allows users to share live video over wireless phones while on a voice call.