AT&T Investor Day Presentation Deck

Customer experience focus - consistency and simplicity Net Promoter® Score Lift¹ Unlimited ~20 points + Unlimited + HBO Max OR Fiber ~15 points Unlimited + HBO Max + Fiber Fiber Postpaid Wireless 2018 1. Net Promoter® is a registered trademark of Bain & Company, Inc., Satmetrix Systems, Inc., and Fred Reichheld; Data reflects affinity customers with Auto Bill Pay AT&T Investor & Analyst Day / March 12, 2021 / 2021 AT&T Intellectual Property - AT&T Proprietary 17 Net Promoter Score +10 points + 2020 ~10 points AT&T

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