AT&T Results Presentation Deck

3 2023 Business Priorities - Accomplishments 1 Grow durable 5G and Fiber relationships ● Sustained success with consistent and disciplined go- to-market strategy 5G Wireless - added 1.7 million postpaid phone subscribers and grew service revenues 4.4% Fiber-added 1.1 million consumer subscribers and grew Fiber revenues ~27% 2 Effective and efficient in everything we do Achieved targeted $6B+ in run- rate cost savings ● ● ● Expanded cost savings target to an additional $2B+ by mid 2026 Implemented efficiencies, enhanced customer experiences and drove scale benefits that improved operating leverage Ⓒ2024 AT&T Intellectual Property. AT&T and globe logo are registered trademarks and service marks of AT&T Intellectual Property and/or AT&T affiliated companies. t See notes slide 12 3 Deliberate capital allocation ● Invested in growth - surpassed 210 million POPS with 5G mid-band spectrum and more than 26 million locations passed with fiber Strengthened balance sheet - reduced net debt to Adj. EBITDA†¹ from 3.19x to 2.97x Provided an attractive dividend with improved quality - generated $16.8B of free cash flowt² AT&T

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