AT&T Results Presentation Deck

3 Business Priorities - Continued Consistent Execution in 3Q21 Grow Customer Relationships ✓ Most postpaid phone net adds in more than 10 years ✓ Fiber share gains with sequential increase in net adds ✓ HBO and HBO Max global subscribers t1 near 70 million October 21, 2021/2021 AT&T Intellectual Property - AT&T Proprietary Effective and Efficient in Everything We Do ✓ Increased cost efficiencies enabled reinvestment in growth ✓ On track to achieve half of $6B cost savings by end of 2021 ✓ Mobility EBITDA¹2 growth of 3.6% ✓ Shift to Fiber driving Consumer Wireline EBITDA+² growth + See notes slide 10 Deliberate Capital Allocation ✓ Announced or closed $55B+ in asset monetization and generated ~$26B in free cash flow t3 over past 12 months +3 ✓ Closed DIRECTV transaction ✓ WarnerMedia deal expected to close by mid-year 2022 ✓ Right capital structure in place to support future success AT&T

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