Description of Depositary Shares We May Offer

We may offer depositary shares evidenced by depositary receipts. Each depositary receipt represents a fraction of a share of the particular series of preferred stock issued and deposited with a depositary. The fraction of a share of preferred stock which each depositary share represents will be set forth in the applicable prospectus supplement relating to those depositary shares. As of the date of this prospectus, there were 48,000,000 depositary shares outstanding, each representing a 1/1,000th interest in a share of Series A preferred stock, and 70,000,000 depositary shares outstanding, each representing a 1/1,000th interest in a share of Series C preferred stock.

We will describe the transfer agent for each series of preferred stock in the applicable prospectus supplement.

Withdrawal of Preferred Stock

You may receive the number of whole shares of your series of preferred stock and any money or other property represented by those depositary receipts after surrendering the depositary receipts at the corporate trust office of the depositary. Partial shares of preferred stock will not be issued. If the depositary shares which you surrender exceed the number of depositary shares that represent the number of whole shares of preferred stock you wish to withdraw, then the depositary will deliver to you at the same time a new depositary receipt evidencing the excess number of depositary shares. Once you have withdrawn your preferred stock, you will not be entitled to re-deposit that preferred stock under the deposit agreement in order to receive depositary shares. We do not expect that there will be any public trading market for withdrawn shares of preferred stock.

Dividends and Other Distributions

The depositary has agreed to pay to you the cash dividends or other cash distributions it receives on preferred stock, after deducting its fees and expenses. You will receive these distributions in proportion to the number of depositary shares you own. The depositary will distribute only whole U.S. dollars and cents. The depositary will add any fractional cents not distributed to the next sum received for distribution to record holders of depositary shares.

In the event of a non-cash distribution, the depositary will distribute property to the record holders of depositary shares entitled to it, unless the depositary determines that it is not feasible to make such a distribution, in which case the depositary may, with our approval, sell the property and distribute the net proceeds from the sale to the holders.

Redemption of Depositary Shares

If we redeem a series of preferred stock represented by depositary shares, then we will give the necessary proceeds to the depositary. The depositary will then redeem the depositary shares using the funds it received from us for the preferred shares. The depositary will notify the record holders of the depositary shares to be redeemed not less than 30 nor more than 60 days before the date fixed for redemption at the holders’ addresses appearing in the depositary’s books. The redemption price per depositary share will be equal to the applicable fraction of the redemption price payable per share for the applicable series of the preferred stock. Whenever we redeem shares of preferred stock held by the depositary, the depositary will redeem the depositary shares representing the shares of preferred stock on the same day. If fewer than all the depositary shares of a series are to be redeemed, the depositary shares will be selected by lot or ratably as the depositary will decide.

After the date fixed for redemption, the depositary shares called for redemption will no longer be considered outstanding. Therefore, all your rights as holders of the depositary shares will cease, except that you will still be entitled to receive any cash payable upon the redemption and any money or other property to which you were entitled at the time of redemption.

Voting the Preferred Stock

How do you vote? The depositary will notify you of any upcoming vote and arrange to deliver our voting materials to you, if you are a holder of record at that time. The record date for determining if you are a holder of depositary shares is the same as the record date for the preferred stock. The materials you will receive will (1) describe the matters that are being submitted to a vote and (2) explain how you, on a certain date, may instruct the depositary to vote the shares underlying your depositary receipts as you direct. For instructions to be valid, the depositary must receive them on or before the date specified. The depositary will try, as far as practical, to vote the shares as you instruct. We agree to do anything the depositary asks us to do in order to enable it to vote as you instruct. If you do not instruct the depositary how to vote your shares, the depositary will abstain from voting those shares.

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Conversion or Exchange

What happens when we convert preferred stock into other securities, or exchange it for securities of another company? The depositary will convert or exchange all your depositary shares on the same day that the preferred stock underlying your depositary receipts is converted or exchanged. In order for the depositary to do so, we will need to deposit the other stock, common stock or other securities into which the preferred stock is to be converted or for which it will be exchanged.

The exchange or conversion rate per depositary share will be equal to:

The following are some more terms of conversions and exchanges that you should keep in mind:

The depositary shares, as such, cannot be converted or exchanged into other preferred stock, common stock, securities of another issuer or any other securities or property of us. Nevertheless, if so specified in the applicable prospectus supplement, you may be able to surrender the depositary receipts to the depositary with written instructions asking the depositary to instruct us to convert the preferred stock represented by the depositary shares into other shares of preferred stock or common stock of us or to exchange the preferred stock for securities of another issuer. If you have this right, we have agreed that we will cause the conversion or exchange of the preferred stock using the same procedures as we use for the delivery of preferred stock. If you are only converting part of your depositary shares represented by a depositary receipt, new depositary receipts will be issued for any depositary shares that you do not convert or exchange.

Amendment and Termination of the Deposit Agreement

How may the deposit agreement be amended? We may agree with the depositary to amend the deposit agreement and the form of depositary receipt without your consent at any time. However, if the amendment adds or increases fees or charges or prejudices an important right of holders, it will only become effective with the approval of holders of at least a majority of the affected depositary shares then outstanding. If an amendment becomes effective, and you continue to hold your depositary receipts, you are deemed to agree to the amendment and to be bound by the amended deposit agreement.

How may the deposit agreement be terminated? The deposit agreement automatically terminates if:

We may also terminate the deposit agreement at any time we wish. If we do so, the depositary will give you notice of termination not less than 30 days before the termination date. Once you surrender your depositary receipts to the depositary, it will send you the number of whole or fractional shares of the series of preferred stock underlying your depositary receipts.

Charges of Depositary and the Expenses

We will pay all transfer and other taxes and governmental charges in connection with the existence of the depositary arrangements. We will pay charges of the depositary for the initial deposit of the preferred stock and

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any redemption. You will pay other transfer and other taxes and governmental charges and the charges that are expressly provided in the deposit agreement to be for your account.

Limitations on Our Obligations and Liability to Holders of Depositary Receipts

The deposit agreement expressly limits our obligations and the obligations of the depositary to you. It also limits our liability and the liability of the depositary. We and the depositary:

In the deposit agreement, we and the depositary agree to indemnify each other under certain circumstances.

Resignation and Removal of Depositary

The depositary may resign at any time by notifying us of its election to do so. In addition, we may remove the depositary at any time. The resignation or removal will take effect when we appoint a successor depositary and it accepts the appointment. We must appoint the successor depositary within 60 days after delivery of the notice of resignation or removal and the new depositary must be a bank or trust company having its principal office in the United States and having a combined capital and surplus of at least $50,000,000.

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Description of Common Stock We May Offer

Our authorized share capital consists of 14,010,000,000 shares, of which 14,000,000,000 are common shares having a par value of $1.00 per share. As of January 31, 2025, 7,178,183,000 shares of common stock were outstanding. The common stock is listed on the New York Stock Exchange under the symbol “T”.

The following briefly summarizes the provisions of our restated certificate of incorporation and our bylaws that are important for you. Both documents are incorporated by reference as exhibits to the registration statement of which this prospectus is a part, and you can obtain them as described below in “Where You Can Find More Information”.

You should note that some of the provisions of our restated certificate of incorporation and our bylaws may tend to deter any potential unfriendly tender offers or other efforts to obtain control of us. At the same time, these provisions will tend to assure continuity of management and corporate policies and to induce any persons seeking control or a business combination with us to negotiate on terms acceptable to our then-elected board of directors.

General

All outstanding shares of common stock are, and any shares of common stock offered, when issued, will be fully paid and nonassessable.

We typically do not issue physical stock certificates. Instead, we record evidence of your stock ownership solely on our corporate records. However, we will issue a physical stock certificate to you if you so request.

Holders of common stock do not have any conversion, redemption, preemptive or cumulative voting rights. In the event of our dissolution, liquidation or winding-up, common stockholders share ratably in any assets remaining after all creditors are paid in full, including holders of our debt securities and after the liquidation preference of holders of preferred stock has been satisfied.

The transfer agent for the common stock is Computershare Trust Company, N.A., P.O. Box 505005, Louisville, Kentucky 40233.

Dividends

Common stockholders are entitled to participate equally in dividends when dividends are declared by our board of directors out of funds legally available for dividends.

Voting Rights

Each holder of common stock is entitled to one vote for each share for all matters voted on by common stockholders.

Election of Directors

Holders of common stock may not cumulate their votes in the election of directors. In an election of directors, each director must be elected by the vote of the majority of the votes cast with respect to that director’s election. If a nominee for director is not elected and the nominee is an incumbent director, such incumbent director must promptly tender his or her resignation to the board of directors, subject to acceptance by the board of directors. The Governance and Policy Committee of the board of directors (the “Governance and Policy Committee”) will make a recommendation to the board of directors as to whether to accept or reject the tendered resignation, or whether other action should be taken. The board of directors will act on the tendered resignation, taking into account the Governance and Policy Committee’s recommendation, and publicly disclose (by a press

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release, a filing with the SEC or other broadly disseminated means of communication) its decision regarding the tendered resignation and the rationale behind the decision within 90 days from the date of certification of election results. The Governance and Policy Committee in making its recommendation and the board of directors in making its decision may each consider any factors or other information that they consider appropriate and relevant. Any incumbent director who tenders his or her resignation following such failure to be elected will not participate in the recommendation of the Governance and Policy Committee or the decision of the board of directors with respect to his or her resignation.

If the number of persons properly nominated for election as directors as of the date that is 10 days before the record date for the meeting at which such vote is to be held exceeds the number of directors to be elected, then the directors shall be elected by a plurality of the votes cast.

For purposes of the election of directors, a majority of votes cast shall mean that the number of shares voted “for” the election of a director exceeds the number of votes cast “against” the election of such director.

Other Matters

Except with respect to the election of directors as described above, all other matters are determined by a majority of the votes cast, unless otherwise required by law or the certificate of incorporation for the action proposed.

For these purposes, a majority of votes cast shall mean that the number of shares voted “for” a matter exceeds the number of votes cast “against” such matter.

Quorum

At least 40% of the shares entitled to vote at the meeting must be present in person or by proxy, in order to constitute a quorum.

Board of Directors

Our bylaws provide that all directors are required to stand for re-election every year. At any meeting of our board of directors, a majority of the total number of the directors constitutes a quorum.

Action without Stockholder Meeting

Our restated certificate of incorporation also requires that stockholders representing at least two-thirds of the total number of shares outstanding and entitled to vote thereon must sign a written consent for any action without a meeting of the stockholders.

Advance Notice Bylaws

Our bylaws establish advance notice procedures with regard to stockholder proposals relating to the nomination of candidates for election as directors or new business to be brought before meetings of our stockholders. These procedures provide that notice of such stockholder proposals must be timely given in writing to the Secretary of AT&T prior to the meeting at which the action is to be taken. Generally, to be timely, notice must be received at our principal executive offices not less than 90 days nor more than 120 days prior to the anniversary date of the annual meeting for the preceding year. The notice must contain certain information, representations and agreements specified in the bylaws.

Proxy Access

Our bylaws permit any stockholder or group of up to twenty stockholders who have maintained continuous qualifying ownership of 3% or more of our outstanding common stock for at least the previous three years to

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include up to a specified number of director nominees in our proxy materials for an annual meeting of stockholders. The maximum number of stockholder nominees permitted under the proxy access provisions of our bylaws shall be the greater of two or 20% of the total number of directors of AT&T on the last day a notice of nomination may be submitted.

Notice of a nomination pursuant to the proxy access provisions of our bylaws must be submitted to the Secretary of AT&T at our principal executive office no earlier than 150 days and no later than 120 days before the anniversary of the date that we mailed our proxy statement for the previous year’s annual meeting of stockholders. The notice must contain certain information, representations and agreements specified in our bylaws.

Section 203 of the General Corporation Law of the State of Delaware

We are also subject to Section 203 of the General Corporation Law of the State of Delaware. Section 203 prohibits us from engaging in any business combination (as defined in Section 203) with an “interested stockholder” for a period of three years subsequent to the date on which the stockholder became an interested stockholder unless:

For purposes of Section 203, an “interested stockholder” is defined as an entity or person beneficially owning 15% or more of our outstanding voting stock, based on voting power, and any entity or person affiliated with or controlling or controlled by such an entity or person.

A “business combination” includes mergers, asset sales and other transactions resulting in financial benefit to a stockholder. Section 203 could prohibit or delay mergers or other takeover or change of control attempts with respect to us and, accordingly, may discourage attempts that might result in a premium over the market price for the shares held by stockholders.

Such provisions may have the effect of deterring hostile takeovers or delaying changes in control of management or us.

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