> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://knowledgebase.xtenav.com/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How can I use my phone number for two-factor authentication if it's linked to a previous account?

If your phone number is already linked to another account for two-factor authentication (2FA) and you would like to unlink it from that account and use it with a new one, please reach out to our chat support or send an email to [**Support@xtenav.com**]. Our support team will assist you in verifying the details and unlinking the phone number so it can be added to your new account.