AT&T Results Presentation Deck

4Q21 Solid Subscriber Gains in Areas of Market Focus Postpaid Phone Subscribers millions 64.2 64.8 0.76% 4Q20 Wireless 6 65.5 67.3 66.4 1 1Q21 2Q21 3Q21 4Q21 4Q20 4Q21 Postpaid phone subscribers Postpaid phone churn Net Adds 0.85% thousands 800 ill 884 January 26, 2022 / 2022 AT&T Intellectual Property - AT&T Proprietary AT&T Fiber Subscribers millions 5.0 ~34% Fiber 5.2 5.4 5.7 6.0 ~37% Net Adds thousands 273 271 4Q20 1Q21 2Q21 3Q21 4Q21 4Q20 4Q21 Fiber subscribers Penetration + See notes slide 13 HBO Max and HBO Subscriberst1 millions 60.6 HBO Max 41.5 63.9 67.5 69.4 47.0 44.2 45.2 73.8 International HBO Max and HBO subscribers 46.8 4Q20 1Q21 2Q21 3Q21 4Q21 Domestic HBO Max and HBO subscribers AT&T

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