Citi 2021 Global TMT West Virtual Conference

NOTE: In this presentation we have made forward-looking statements. These statements are based on our estimates and assumptions and are subject to risks and uncertainties. Forward-looking statements include the information concerning our possible or assumed future results of operations. Forward-looking statements also include those preceded or followed by the words “anticipates,” “believes,” “estimates,” “expects,” “hopes” or similar expressions. For those statements, we claim the protection of the safe harbor for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995. We undertake no obligation to revise or publicly release the results of any revision to these forward-looking statements, except as required by law. Given these risks and uncertainties, readers are cautioned not to place undue reliance on such forward-looking statements. The following important factors, along with those discussed in our filings with the Securities and Exchange Commission (the “SEC”), could affect future results and could cause those results to differ materially from those expressed in the forward-looking statements: cyber attacks impacting our networks or systems and any resulting financial or reputational impact; natural disasters, terrorist attacks or acts of war or significant litigation and any resulting financial or reputational impact; the impact of the global outbreak of COVID-19 on our operations, our employees and the ways in which our customers use our networks and other products and services; disruption of our key suppliers’ or vendors' provisioning of products or services, including as a result of the COVID-19 outbreak; material adverse changes in labor matters and any resulting financial or operational impact; the effects of competition in the markets in which we operate; failure to take advantage of developments in technology and address changes in consumer demand; performance issues or delays in the deployment of our 5G network resulting in significant costs or a reduction in the anticipated benefits of the enhancement to our networks; the inability to implement our business strategy; adverse conditions in the U.S. and international economies; changes in the regulatory environment in which we operate, including any increase in restrictions on our ability to operate our business; our high level of indebtedness; an adverse change in the ratings afforded our debt securities by nationally accredited ratings organizations or adverse conditions in the credit markets affecting the cost, including interest rates, and/or availability of further financing; significant increases in benefit plan costs or lower investment returns on plan assets; changes in tax laws or treaties, or in their interpretation; and changes in accounting assumptions that regulatory agencies, including the SEC, may require or that result from changes in the accounting rules or their application, which could result in an impact on earnings.