phone number

Hi @Kate Hosch

Thank you for reaching out to our Q&A forum.

May I ask are you still able to log in via https://mysignins.microsoft.com/security-info?

If yes, you can remove your old phone number here and then register with a new phone number.

If you are completely locked out of your account, please contact your school's IT admin. They will be able to reset your password as well as your MFA, this will regain your access to your account.

Please give this article to your IT: Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID |…

Once you regain access, it's a good idea to set up an additional sign-in method if your school allows it (Microsoft Authenticator), so you’ll have a backup option to sign in.

Please feel free to reach out if you need anything else.

If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".

Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

To change the phone number associated with your school email, you will typically need to access the admin settings if you have administrative privileges. Here are the general steps you can follow:

1. Sign in to the Microsoft 365 admin center using your admin account.
2. Navigate to Users > Active users.
3. Select your user account and choose Manage contact information under Contact information.
4. Update your phone number and select Save changes.

If you do not have administrative access, you may need to contact your school's IT department or administrator for assistance with updating your phone number.

References:

• Update your Microsoft 365 admin phone number and email address