2FA methods supported by T-Mobile
Adding two-factor authentication is one of the most effective ways to protect your T-Mobile account. With TOTP support, you can generate T-Mobile verification codes directly in the Authenticator App.
SMS
T-Mobile can send a one-time verification code to your phone via text message.
Authenticator app (TOTP)
T-Mobile lets you use time-based one-time passwords, so you can generate verification codes in an authenticator app on your device — no network or SMS needed.
Hardware token
T-Mobile supports a dedicated hardware token for generating codes.
Backup methods of SMS or recovery questions can't be disabled.
T-Mobile 2FA — Frequently asked questions
Does T-Mobile support an authenticator app?
Yes. T-Mobile supports time-based one-time passwords (TOTP), so you can add it to the Authenticator App and generate verification codes right on your device.
Which two-factor authentication methods does T-Mobile support?
T-Mobile currently supports: SMS, Authenticator app (TOTP), Hardware token.
Is it free to generate T-Mobile codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating T-Mobile verification codes does not require an account or sign-up.
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