Hey @agapelove,
Welcome to the Community.
Great news! You can add multiple phone numbers to provide more options when receiving the verification code. However, only one authentication app can be used for two-step verification at a time. For example, you cannot use both Google Authenticator and Microsoft Authenticator for two-step verification associated with one singular account.
Learn more about Two-Step Verification here.
Thanks! I'll try use two different phone numbers instead.
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