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Twitch Two-Factor: Lost Your Phone, Change Your 2FA Number, Codes Not Working

When you turn on two-factor authentication (2FA) on Twitch, an Authy account is created for you behind the scenes and linked to your phone number, whichever app you use for codes. That matters if you lose your phone: the way back in usually goes through Authy’s phone change form, not Twitch.

Edited by Michael Michael Reviewed 4 min read 2 fixes Login & access

Quick answer

Still logged in? Go to twitch.tv/settings/security > Edit Two-Factor Authentication, enter a code, then Modify next to Text Message (Backup) and add your new number. Locked out and lost your phone? Use a backup code if you saved one; otherwise fill in Authy’s Phone Change Form (forms.authy.com/phones/change). Twitch says Authy processes it in 24–48 business hours. VoIP numbers and landlines aren’t supported.

What’s your situation?

Does this match what you see?

  • You lost or replaced the phone that gets your Twitch 2FA codes.
  • Twitch keeps rejecting your two-factor code.
  • You don’t know why you have an Authy account.

Computer (browser)iPhone & iPadAndroid

Based on Twitch Help’s “How to Change Your 2FA Phone Number on Twitch” (Authy FAQ), text supplied by the site owner on November 9, 2026.

Why this happens: the possible causes

Why 2FA problems happen (Twitch Help).

Common 2FA code errors
ProblemTwitch’s fix
Code expiredCodes expire after 30 seconds: get a new one and enter it straight away
Wrong codeUse the most recent code
Time out of sync (authenticator app)Turn on Set time automatically in your device settings
Typing errorEnter it with no spaces
Too many requestsWait 24 hours before trying again
  • You no longer have the phoneCheck this first

    Your 2FA is tied to a phone number through Authy.

  • Device time is wrongPossible

    Authenticator codes depend on the correct time.

Try these 60-second checks first

  • Look for the backup codes you saved when you set up 2FA.

How to fix it, step by step

Work through these in order. They start with the quickest, safest checks and only move to steps that sign you out or remove data later.

Fix 1: Change your 2FA number (you can still log in)

Safe & reversible5 minComputer (browser)

For when you still have your old number and your Twitch account.

Computer (browser)

  1. Go to twitch.tv/settings/security and click Edit Two-Factor Authentication.
  2. Enter the 2FA code from your authenticator app or text message.
  3. Click Modify next to Text Message (Backup), choose your country code and enter the new number.
  4. Enter the verification code sent to the new number and click Submit.

Lost the old phone but still logged in, or got in with a backup code? Follow the same steps.

Did it work? Your 2FA is linked to the new number.

Fix 2: Locked out after losing your phone

May sign you out24–48 business hrsComputer (browser)

Twitch says this process works for everyone with 2FA, whichever code app they used.

  1. If you saved backup codes, use one to log in, then change your number as above.
  2. No backup code? Fill in Authy’s Phone Change Form at forms.authy.com/phones/change with your old and new phone numbers.
  3. Wait for Authy to verify you. Twitch says this takes 24–48 business hours, and you’ll get a confirmation.
  4. Then log in to Twitch with your username and password, and get the 2FA code on your new number.

Twitch says Twitch Support can’t speed up or change Authy requests. Past 48 business hours, check your email for Authy updates or use Authy’s help center (help.twilio.com).

Did it work? You can log in with codes on your new number.

Code not accepted?

Work through the table above: codes last 30 seconds, authenticator apps need the correct device time, and after too many requests you must wait 24 hours. Still stuck? Use a backup code, or see Twitch verification code not received.

VoIP numbers, landlines, or no new number

  • VoIP numbers (such as Google Voice, Skype or WhatsApp) and landlines aren’t supported for Twitch 2FA. Twitch says you need a mobile carrier number that can receive texts.
  • Instead, you can use an authenticator app (Google Authenticator, Microsoft Authenticator or Authy) to generate codes.
  • No new number at all? Twitch says you must have one to change your 2FA number. If you can still log in, keep using your current authenticator app, or use backup codes.

Why you have an Authy account

  • Twitch says Authy runs the behind-the-scenes system for its 2FA, so an Authy account and ID are created for every 2FA user, even if you’ve never downloaded the Authy app.
  • You can’t delete it separately from your Twitch account. Turning off 2FA in twitch.tv/settings/security disables it, but Twitch doesn’t recommend that: you lose the exclusive 2FA emotes and your account is less secure.
  • What Authy can’t help with: Twitch login problems unrelated to 2FA, suspensions or bans, and billing or subscriptions. Those go to Twitch.

Find accounts linked to your phone number

Each Twitch account has its own Authy ID, and several accounts can share one number. To see them: go to twitch.tv/user/account-recovery, choose your country code, enter your number, click Continue, then “I Don’t Know My Username”. Twitch texts you a list of all accounts linked to that number.

How to know it worked

  • You can log in and your 2FA uses a number or app you control.

Still not working? Your next steps

  1. Forgot your password or username, or lost your email? See can’t log in to Twitch.

Official help routes

SocialAppFix can’t see or change your account. For account decisions, recovery and appeals, only the platform’s own tools can help. These links go to the official sites.

Frequently asked questions

How do I get into Twitch if I lost my 2FA phone?

Use a backup code if you saved one. Otherwise fill in Authy’s Phone Change Form (forms.authy.com/phones/change); Twitch says Authy processes it in 24–48 business hours.

Why do I have an Authy account if I use Google Authenticator?

Twitch says every 2FA user gets an Authy account automatically, whatever app they use for codes, because Authy runs Twitch’s 2FA system.

Can Twitch Support speed up my Authy phone change?

No. Twitch says it can’t expedite or modify Authy phone change requests.

Can I use a Google Voice number for Twitch 2FA?

No. Twitch says VoIP numbers and landlines aren’t supported; use a mobile number or an authenticator app.

Why is my Twitch 2FA code invalid?

Codes expire after 30 seconds, authenticator apps need your device time set automatically, and too many requests mean waiting 24 hours.

Sources and how we checked this guide

We base steps on the platforms’ own help pages and the phone makers’ official guides. Menu names change often and can differ by device, app version and region. Where a platform page could not be independently read, we link it so you can check the current wording yourself.

  1. How to Change Your 2FA Phone Number on Twitch (external site, opens in a new tab)Twitch · checked 9 November 2026

Last reviewed 9 November 2026 by the SocialAppFix editorial team against the sources above. Next scheduled review: 9 May 2027. Editor: Michael Michael. How we write and review guides.

What changed
  • 9 November 2026: First published.

SocialAppFix is an independent guide and is not affiliated with or endorsed by Twitch. We never ask for passwords, login codes or payment to fix an account.