Phone Number

Text messages with 6-digit Microsoft verification codes are typically sent when someone is trying to sign in to a Microsoft account and has your phone number set up as security info.

Key points based on the behavior described:

1. Why the texts are being received
   • Microsoft sends verification codes by SMS when:
     • Someone signs in or uses a feature that requires identity verification.
     • Someone signs in from a new device or location.
     • Two-step verification is enabled and SMS is chosen as the method.
   • Messages can come from short codes like 69525 or the sender name Microsoft. The short code (for example, 69525) is the sending number, not the verification code itself.
   • If these codes were not requested, it may mean:
     • Someone is trying to access an account that has this phone number as security info, or
     • Someone mistyped their own phone/email when signing in.
2. Is it a scam or genuine?
   • Microsoft states that 69525 and some messages from Microsoft are genuine senders for security codes and alerts.
   • Genuine Microsoft SMS links start with aka.ms. If unsure, do not click any link; instead, go directly to https://account.microsoft.com or https://account.live.com by typing it into the browser.
   • If a verification code was received that was not requested, treat it as a possible sign that someone is trying to access an account.
3. Checking which account is using the phone number
   • The provided context does not include a tool or method to look up “which Microsoft account this phone number is linked to.”
   • The recommended approach is:
     • Sign in to any Microsoft accounts owned (for example, at https://account.microsoft.com) and review the security info on the Security or Security basics page to confirm which phone numbers and emails are listed.
     • If a phone number is not listed on an account, that specific account is not currently using it as security info.
4. What to do if the codes were not requested
   • Do not share the codes with anyone and do not enter them anywhere unless actively signing in.
   • Review recent activity for Microsoft accounts owned to check for unusual sign-ins or attempts. If unusual activity is found, follow the guidance to secure the account (change password, review security info, etc.).
   • If messages continue and were not requested, follow Microsoft’s guidance on keeping the account secure and on handling unrequested verification codes.
5. General safety guidance
   • Microsoft will not proactively contact users with unsolicited technical support via SMS.
   • If unsure whether a message is genuine, do not click links; instead, go directly to the Microsoft account site by typing the address into the browser.

References:

• Why is Microsoft texting me?
• Troubleshoot Microsoft verification code issues
• What happens if there's an unusual sign-in to your account