1. © 2009 AT&T Intellectual Property. All rights reserved. AT&T and the AT&T logo are trademarks of AT&T Intellectual Property. Kris Rinne Senior Vice President Architecture & Planning Telecommunications: The Next Generation

2. AT&T Connectivity More than 1 billion devices connect to the AT&T network Page 2 Millions of businesses on six continents 78 million wireless 54 million wired 16.7 million broadband 3.5 million television

3. Alphabet Soup of Technology GSM GPRS EDGE HSPA LTE 2G 2.5G 3G 4G

4. AT&T’s Network: Best Worldwide Coverage 88% of the world’s wireless users use GSM U.S. Coverage 3G U.S. Coverage: nearly 350 metro areas Nation’s Fastest 3G Network 2.5G U.S. Coverage – Nationwide coverage mirrors our voice footprint – Available in 17,000 cities and towns Nearly 95 percent of U.S. population covered Roaming AT&T has the broadest global coverage of any U.S.-based carrier with voice roaming in 215 countries and data access in 170 countries Page 4

5. Page 5 AT&T Mobility We’re focused on delivering the industry’s best wireless experience 2009: Adding another 2,100 cell sites, 3G service to 20 new markets Invested $20 billion+ over four years on network upgrades, spectrum and acquisitions Capex of ~$17 billion in 2009, focusing on extending and enhancing wireless and wired networks

6. Seamless Network Access: Continue Mobile Broadband Evolution Performance Time PastPresentFuture GPRS – 25 to 40 Kbps 48 Kbps peak EDGE – 100 to 130 Kbps 237 Kbps peak UMTS – 150 to 180 Kbps 384 Kbps peak HSDPA – 400 to 700 Kbps 3.6 Mbps peak HSUPA/HSPA – 500 to1200 Kbps up 1.5 Mbps peak up (potential 5.76M) 700 to 1700 Kbps down 3.6 Mbps LTE (R8) – Even greater speeds Backward compatible migration on the existing global standard Today Speeds are typical user throughput. HSUPA/HSPA 7.2 Mbps upgrades Improved Backhaul peak down (potential 14.4M)

7. Mobile Internet Becoming a Way of Life Source: comScore, March 2009 “Over the course of the past year, we have seen use of mobile Internet evolve from an occasional activity to being a daily part of people’s lives.” Mark Donovan, senior vice president, mobile, comScore

8. AT&T Consumers with Integrated Devices

9. Broadband AT&T is the nation's largest provider 18 Mbps High Speed Service in many areas

10. AT&T Wi-Fi Network AT&T Wi-Fi Consumer Offer Largest U.S. Wi-Fi network: McDonalds, Starbucks, Barnes and Noble Nearly 20K AT&T Wi-Fi locations in the United States; next competitor offers 6K Nearly 80K locations worldwide, including roaming agreements Complementary Wi-Fi access available to all AT&T broadband customers, AT&T smart phone subscribers Non-AT&T broadband user access starting at less than $20/month Wholesale pricing available Coverage enhanced by U.S. Wi-Fi network Page 10

11. Video Products and Services © 2008 AT&T Knowledge Ventures. All rights reserved.

12. The Changing Face of Wireless Source: CTIA Penetration nearing 100% 270+ million U.S. wireless customers EOY 2008

13. 1 st Quarter 2009 – Prepaid Dominates Growth Major Wireless Carriers. Source: Industry Reports

14. Wireless Network Technology – Widespread Development 10 1 20082009201020112012 Assumes max theoretical download speeds Assumes 10 MHz up, 10 MHz down MBPS HSPA Roadmap EVDO Rev. A WiMAX AT&T (HSPA/LTE) Verizon (EVDO/LTE) Sprint (EVDO/WiMAX)

15. Opportunity: New Generation of Connected Devices PNDs Real Time Traffic Points of Interest Web Search Cameras Backup Photos to Internet Limitless Memory Card Send Photos to Digital Photo Frame Media Player Movie Player Photos Music Gaming Devices Multiplayer Games Game Downloads Social Networking Browsing Cars and Telematics Diagnostics & Safety Real Time Traffic Web Content Rear Entertainment eReader Access to Books, Newspapers, Mag. Simple out of the box experience Subscription Opportunities/Rev Picture Frame Push photos to Grandma No setup required Sync with Digital Camera AT&T Network - Hotspots - International - GSM/HSPA - HSI Monitoring/Tracking Medical Applications Security Home/Business monitoring Child Track/Find Fido Netbooks & MIDs Mini Computing Customer Experience Instant On/All Day Battery

16. © 2009 AT&T All rights reserved. Page 16