Change my phone number
To change the phone number where you get your security code, go to https://www.login.gov/ and select “Sign In” to access your login.gov account. Once signed in, click on “Manage” next to the phone number. Enter the phone number and select “confirm change.” login.gov will immediately send your security code to confirm the new phone number.
If you cannot receive the security code because you don’t have access to your phone, you will need to sign in using your personal key, if you were assigned one and it’s still valid, or using another two-factor authentication method you’ve set up.