Managing personal Outlook.com account settings, security, and privacy
Hey there! Nice to meet you!
Since you can't receive SMS verification codes from your landline number, the only way to recover the account is through the account recovery web form.
Please go to account.microsoft.com > click "Forgot Password" > select "I don't have any of these" > then you will be redirected to the ACSR form.
Important: If you have an active 2FA, ACSR will inform you that your recovery request will be ignored. If you only receive a message that the recovery request is either successful or indicates insufficient information, this means that 2FA is disabled.
You'll need to keep trying until you're verified by Microsoft, and you can do this up to 2 times every 24 hours.
If your recovery request is successful, you will be asked to wait 30 days in order to update your security info and recover your account.
During this time, you will not be able to sign in to sites or services with your account.
If your Microsoft account recovery request was not granted, please review this link for tips on improving your chances of a successful recovery: https://support.microsoft.com/office/dc56c3e3-dff0-4ed5-8edb-60290eea6b53
Please be advised that Microsoft Support will not be able to grant you access to your account.
Thank you for your understanding.
Best regards,
Darhyl