What happens if I change my phone number for 2-Factor Authentication?

You only need to take action if you use Authy. Please go to the changed phone number option at Authy. To approve the new number, there will be a delay of a few days. The Authy article gives a few other options to avoid the delay. 

If you changed phones and are reinstalling your Google Authenticator or TOTP app, follow the instructions here.

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