How to Change Two-Factor Authentication Phone Number on Reddit
If you need to change two-factor authentication phone number on Reddit, the process depends on whether you still have access to your account and authenticator app.
This guide explains the safest way to update your Reddit 2FA details and what to do if you are already locked out.
Reddit uses two-factor authentication to protect accounts against unauthorized access, but phone number changes can be confusing because Reddit often relies on an authenticator app rather than SMS.
Knowing the difference can save you time and help you avoid losing access.
What Reddit Actually Uses for Two-Factor Authentication
Reddit’s two-factor authentication is typically app-based, meaning you generate verification codes in an authenticator app such as Google Authenticator, Authy, Microsoft Authenticator, or a password manager with TOTP support.
In many cases, Reddit does not use your phone number as the main 2FA method.
- Authenticator app: Generates time-based one-time codes.
- Backup codes: Single-use recovery codes you should save when enabling 2FA.
- Email access: Useful for account recovery and password resets.
If you are looking to change a phone number because you replaced your device, the real task may be migrating your authenticator app to the new phone rather than editing a phone number inside Reddit.
Can You Change the Phone Number on Reddit 2FA?
Reddit does not generally let you manage 2FA through a direct “phone number” setting the way some services do.
Instead, you update the authentication method by removing 2FA from the old device and setting it up again on the new one.
If your old phone is still working, you can usually complete the switch smoothly.
If the old phone is lost or reset, backup codes and account recovery become much more important.
How to Change Two Factor Authentication Phone Number on Reddit If You Still Have Access
If you can log in to Reddit, use these steps to move your 2FA setup to a new phone or device.
1. Sign in to your Reddit account
Log in using your username and password.
If Reddit asks for a 2FA code, retrieve it from your current authenticator app on the old phone.
2. Open your account settings
Go to your Reddit user settings and look for the security or password and authentication area.
Reddit’s interface may change over time, but the 2FA controls are usually within account or security settings.
3. Disable two-factor authentication temporarily
If Reddit allows it, turn off 2FA first.
You may need to verify your identity with a current code.
This step clears the old device association so you can re-enroll on the new phone.
4. Install your authenticator app on the new phone
Download the same authenticator app you used before, or a replacement that supports TOTP codes.
If the app supports cloud backup or transfer, use that feature carefully and confirm the new device is ready before removing the old one.
5. Re-enable 2FA on Reddit
Return to Reddit security settings and set up two-factor authentication again.
Scan the QR code with the new phone’s authenticator app and enter the generated code to complete verification.
6. Save new backup codes
Download, print, or securely store the new backup codes immediately.
Old codes may no longer work after you reconfigure 2FA.
How to Change Two Factor Authentication Phone Number on Reddit If You Lost the Old Phone
Losing the device that holds your authenticator app is the hardest scenario.
In that case, the first thing to check is whether you saved backup codes when you enabled 2FA.
- Use backup codes if you saved them somewhere secure.
- Check password managers if they store TOTP secrets or recovery information.
- Look for cloud-synced authenticator data if your app supports it.
If none of those options are available, you may still regain access through Reddit’s account recovery or by trying a password reset, but a password reset alone does not always remove the 2FA requirement.
Best Practices Before You Make the Change
To avoid lockout, prepare your recovery tools before changing anything related to authentication.
- Keep your Reddit password current and unique.
- Store backup codes in a password manager or offline secure location.
- Confirm your email address is accessible and up to date.
- Test your new authenticator app before deleting the old one.
- Do not rely on memory for recovery codes or setup keys.
Security experts, including organizations like the National Institute of Standards and Technology, consistently recommend layered account protection and careful recovery planning.
That advice is especially relevant for Reddit accounts tied to communities, moderation tools, or long-running posting histories.
Common Problems When Updating Reddit 2FA
Users frequently run into the same issues when trying to change authentication settings.
Incorrect time on the phone
TOTP codes depend on accurate time synchronization.
If the code is rejected, check the phone’s date and time settings and enable automatic time if possible.
Old app still generating codes
If you left the old authenticator active, make sure you are using the correct entry for Reddit.
Multiple accounts can create confusion.
Backup codes already used
Backup codes are usually single-use.
Once one is used, it cannot be reused.
Account recovery delays
If you are locked out, recovery can take time.
Keep proof of email access and any recovery information ready.
Should You Use SMS or an Authenticator App?
For account security, an authenticator app is usually stronger than SMS-based codes because SMS can be vulnerable to SIM swapping and number porting attacks.
That matters if your goal is to change a phone number without weakening the protection on your Reddit account.
If a service offers both options, security professionals often prefer app-based 2FA or hardware security keys such as YubiKey.
Reddit users who manage high-value accounts, moderator accounts, or business profiles should strongly consider the most resilient method available.
What to Do After You Update the Authentication Method
After you complete the change, verify that everything works before signing out of all devices.
- Log out and log back in once to confirm the new 2FA setup works.
- Confirm that the authenticator app shows the correct Reddit entry.
- Store the new backup codes in two secure places.
- Review connected email security and password strength.
- Update your device if you use a password manager or backup app on the new phone.
If you manage multiple Reddit accounts, repeat the process carefully for each one so you do not mix up backup codes or authenticator entries.
When to Contact Reddit Support
If you cannot access your account, do not have backup codes, and cannot recover the old phone, Reddit support may be your only option.
Provide accurate account details, explain that you need help with 2FA recovery, and be prepared for identity verification steps.
Support responses can vary, so keep your messages concise and include only the information needed to confirm ownership of the account.
Avoid creating multiple duplicate requests, which can slow the process.
For most users, the fastest route is still preparation: a working authenticator app, saved backup codes, and a verified email address.
That combination makes changing Reddit 2FA to a new phone much easier and much safer.