2FA methods supported by Telegram
Adding two-factor authentication is one of the most effective ways to protect your Telegram account. With TOTP support, you can generate Telegram verification codes directly in the Authenticator App.
SMS
Telegram can send a one-time verification code to your phone via text message.
Phone call
Telegram can call your phone and read out a verification code.
Telegram 2FA — Frequently asked questions
Does Telegram support an authenticator app?
Yes. Telegram 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 Telegram support?
Telegram currently supports: SMS, Phone call.
Is it free to generate Telegram codes with the Authenticator App?
Yes. The Authenticator App is free to download, and generating Telegram verification codes does not require an account or sign-up.
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