AT&T Investor Day Presentation Deck

AT&T optimally positioned to meet customers' connectivity needs Enterprise / Public Sector Distributed and remote workers ~20K enterprises (>500 emp.)² Small Business Simple / transactional ~31.7M small businesses² Gamer Low latency / high bandwidth 141M U.S. console gamers (>1 hour week)¹ 11 Fixed 879 Home HD streaming / simultaneous viewing ~128M households AT&T Wireless Sources: ¹Number of Gamers worldwide link 2U.S. Small Business Administration, Office of Advocacy link ³KFF Population by age link 4Federal Aviation Administration link AT&T Investor & Analyst Day / March 12, 2021 / 2021 AT&T Intellectual Property - AT&T Proprietary Young Adult / Student Wireless first, gamers 28M between ages 19 - 25³ Travel Highly mobile, distributed 45K average daily flights4 AT&T

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