MFA & Verification Issues

How to Change Your Phone Number for Microsoft Account Verification Codes

Maira Mehtab Sep 22, 2026 868 views

Question details

The user needs to update the phone number associated with their Microsoft account to continue receiving security verification codes.

Product: Microsoft Account
Device & OS: not provided
Scenario: The user has changed their phone number and needs to update their Microsoft security information to receive multi-factor authentication (MFA) codes.
Observed behavior: The user wants to replace their old verification phone number with a new one in their account settings, or needs troubleshooting steps if they are locked out.

Before you start

Ensure you have access to your current Microsoft account password and check if you have an alternate verification method (like a backup email) already set up on your account.

Solution 1Recommended

Update Phone Number in Microsoft Security Settings

Use this method if you still have access to your Microsoft account and can successfully sign in.

Sign in to your account

Go to the Microsoft account website and log in with your current email and password.

Access security options

Navigate to the 'Security' tab at the top of the dashboard, then click on 'Advanced security options'.

Remove the old number

Locate your old phone number under the 'Ways to prove who you are' section and click 'Remove'.

Add the new number

Click 'Add a new way to sign in or verify', select 'Show more options', choose 'Text a code', and enter your new phone number.

Solution 2

Recover Account When You Cannot Access Verification Codes

Follow these steps if you are locked out because you no longer have access to the old phone number.

Solution 3

Update Authentication Methods for Work or School Accounts

If you are using an organization-managed account, you may need administrative assistance to change your verification number.

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Frequently Asked Questions

Why do I have to wait 30 days after changing my Microsoft account phone number?

Microsoft implements a 30-day security hold when you remove all existing security information and replace it with new details. This is designed to protect your account from unauthorized hackers trying to lock you out.

Can I use an email address instead of a phone number for Microsoft verification?

Yes, you can add an alternate email address in your Microsoft account's 'Advanced security options' to receive verification codes, which is a great alternative if you frequently change phone numbers.

What should I do if I am not receiving the Microsoft verification code on my new number?

Ensure your phone has a stable cellular signal, check your blocked messages folder, and verify that the correct country code is selected in your Microsoft account settings. If the issue persists, consider using the Microsoft Authenticator app.

Login & Account Issues