Key Preparations for Users Planning to Change Their Phone Number When Registering on Binance
For users planning to change their phone number when registering onBinance, the most critical preparation is a post-change contingency plan, not the registration itself. The core strategy: register with an email, bind an authenticator, and make your phone number a "backup verification channel" rather than the "sole entry point." This way, even after your old number is deactivated, you can still log in and operate your account normally.
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1. Plan During Registration: Don't Make Your Phone Number the Only Key
Many users encounter issues after changing their number because they relied on it as the primary method during registration. Take two steps in advance, and you'll be largely unaffected after the change:
1.1 Prioritize Email Registration Over Phone Number
Choose "Email Registration" during sign-up (Gmail, Outlook are more stable). The email serves as the "root identity" of your account—it remains unaffected when you change your phone number, and the login and verification code channels stay accessible.
1.2 Immediately Bind Google Authenticator (2FA) After Registration
This is the most crucial step. Enable Google Authenticator in [Security Settings]. After that, sensitive operations like login and withdrawals can bypass SMS verification and use the dynamic codes generated by the authenticator app. During binding, the system will generate abackup key—make sure to screenshot or write it down and store it securely, as it will be needed to restore access when you change phones.
After these two steps, your phone number becomes a "backup option" rather than the "only channel."Even if your old number is deactivated, you can still operate your account normally using your email and authenticator.
2. If You've Already Registered with a Phone Number, Do This Before Changing It
If you've already registered with an old phone number and it can still receive SMS,follow these steps to change the binding before deactivating it:
Steps on the App:
Open the Binance App → Tap [Profile] at the bottom right → [Account & Security] → [Phone Number]
Tap [Change Phone Number] and enter your new phone number
The system will send a verification code to yourold phone number; enter it to complete identity verification
A verification code will then be sent to your new phone number; enter it to confirm the change
Steps on the Web:
Log in to the official website, hover over your avatar at the top right → [Account & Security] → [Security Settings] → [Phone Number] → [Edit]
Complete two-step verification (old phone number SMS code + Google Authenticator dynamic code) to proceed with the change
After changing the binding, your old number will no longer receive Binance verification SMS messages.
3. If Your Old Number Is Already Deactivated and You Can't Receive SMS
Try the following three methods in order:
Method 1: Verify via Email (Fastest)Log in, go to [Security Settings], click [Change Phone Number], and select [Verify via Email]. The system will send a verification link to your registered email; click it to directly bind a new number without needing the old one.
Method 2: Use the KYC Review ChannelUsers who have completed Level 2 verification can go to [KYC Verification] and select [Resubmit Verification]. The system will trigger a liveness check based on existing data; upon passing, you can update your contact information without verifying the old number.
Method 3: Contact Customer Support (Last Resort)When the old number is completely unusable and no other verification methods are available:
Visit the Binance Help Center and select the "Unable to Change Phone Number" category
Upload a clear photo of the front and back of your ID, a selfie holding your ID, and a deactivation certificate from your old number (stamped by the carrier)
Submit and wait for review (typically 24–72 hours); once approved, your new number can be bound
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4. Check These Points After Changing Your Number
Log out of all devices and log back in: In [Device Management], force log out of old sessions, then log in again with your new phone number for verification
Re-set up the authenticator: If you changed phones and didn't back up the key, you'll need to reset the Google Authenticator binding through the KYC review channel
Confirm whitelist addresses: If you've enabled a withdrawal address whitelist, check that it's still valid and unaffected by the number change
