Wrong phone number in Authenticator

Bing 1 Reputation point
2022-10-31T00:48:27.713+00:00

I used my iPhone in 2 countries: China and USA by simply switching SIM card around. My Chinese phone number was registered in my Authenticator app. I came back to USA before Pandemic, and was not able to go to China for 3 years and my Chinese phone number was expired. Now I am not able to access my security or update my password due to two way authentication that requires code that would be sent to my lost Chinese phone number. How do I fix this issue?

Microsoft Authenticator
Microsoft Authenticator
A Microsoft app for iOS and Android devices that enables authentication with two-factor verification, phone sign-in, and code generation.
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  1. Dave Patrick 426.3K Reputation points MVP
    2022-10-31T01:03:27.407+00:00

    Maybe this one helps.
    https://support.microsoft.com/en-us/account-billing/change-your-two-step-verification-method-and-settings-c801d5ad-e0fc-4711-94d5-33ad5d4630f7

    --please don't forget to upvote and Accept as answer if the reply is helpful--

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  2. Bing 1 Reputation point
    2022-10-31T02:06:24.507+00:00

    Thank you Patrick for your answer. I forgot to mention one more thing, I don't know when it happened, but my Authenticator now is my work email account not my personal account. But if I add personal account, it asks me to verify myself with texting code to my old phone number, hence the dead cycle