The process for changing your linked phone number on Binance is as follows: Log in to the Binance Official Website or the Binance Official APP, go to "Account Security - Phone Number," click on "Modify," and sequentially enter the SMS verification code from your old phone + the email verification code + the 2FA dynamic code to complete identity verification. Then, enter your new phone number and receive the SMS verification code for the new number to complete the re-binding. The whole process takes about 5 minutes. After re-binding, the account will trigger a 48-hour withdrawal cooling-off period, during which withdrawals, C2C selling, and fiat withdrawals are suspended, while spot and futures trading remain normal. Note: If the old number has been canceled or disconnected and cannot receive SMS, you need to go through the manual "Phone Number Appeal" process, submitting identity documents, which takes 3-7 business days. A common question when changing numbers is "Will it affect KYC verification? Will it affect commissions?" The answer is no—KYC is tied to your ID, and commissions are tied to your UID; the phone number is just a communication credential. For users who haven't installed the APP yet, please refer to the iOS Installation Tutorial. This article details domestic and international number changes, appeals for unavailable numbers, and post-change security hardening.
6 Common Scenarios for Changing Your Phone Number
Scenario 1: Moving from a domestic to an international number (studying/working abroad). Many people's domestic numbers are disconnected after going abroad and need to be replaced with local numbers. Binance supports phone numbers from over 200 countries and regions.
Scenario 2: Moving from an international to a domestic number (returning home). Returning after studying or working abroad and switching back to a domestic number. The process is the same.
Scenario 3: After changing carriers or porting numbers. While the number itself might not change, some carriers might invalidate the original SIM; re-binding is recommended.
Scenario 4: Second-hand number previously registered on Binance. The second-hand number you bought was previously used by another user, causing a "number already in use" prompt. This requires an appeal to resolve.
Scenario 5: Switching from a virtual to a physical number. You used a virtual number (like Google Voice) in the early days, and now Binance's risk control requires a physical number.
Scenario 6: Simple number change. Everyday need to change your phone number.
4 Preparations Before Re-binding
1. Install the new SIM card and confirm it can receive SMS. The simplest test: have a family member send you an SMS. For international roaming, ensure SMS channels are clear.
2. Confirm the new number hasn't been registered on Binance. Try to register with the new number on the Binance registration page; if it says "already registered," it cannot be used for re-binding. You'll need to resolve the original account or use a different number.
3. Keep the old number active if possible. The process requires the old number to receive a verification code. If it's already disconnected, use the appeal process.
4. Ensure email and 2FA are working. You'll need an email verification code and a 2FA dynamic code; lacking either will stall the process.
Web-based Re-binding Steps
Step 1: Enter the Account Security page. Log in to the Binance official site, click your avatar top right → "Account Security." In the "Account Information" section, find the "Phone Number" row, click "Modify" on the right.
Step 2: Old number verification. Click "Modify," and the system will ask you to verify ownership. Click "Send SMS Code" and enter the 6-digit number received.
Step 3: Email verification. Simultaneously send a code to your linked email, check it (pay attention to the anti-phishing code), and enter it.
Step 4: 2FA verification. Open Google Authenticator and enter the current 6-digit code.
Step 5: Select the new number's country code. Choose the country for the new number from the dropdown, e.g., +1 (USA), +44 (UK), +65 (Singapore), etc. Note that some restricted regions are not supported.
Step 6: Enter the new number and receive the code. Enter the new number and click "Send"; you'll receive an international SMS starting with "+65" or "+1". Enter the verification code.
Step 7: Completion. The system displays "Phone number modified successfully," and both numbers receive notification SMS.
APP-based Re-binding Steps
The APP process is more seamless. Open the Binance APP → "Account" bottom right → "Security Center" → "Phone Number" → "Change Phone Number." The advantage is using the same device for both old and new number SMS reception.
Additionally, if your new SIM is in the current phone and the APP has "Read SMS" permissions (Android only), it can auto-fill the code. iOS users need to copy-paste manually.
Common Issues with International SMS
When switching to an international number, SMS reception can be more complex:
Issue 1: International SMS blocked. Many carriers block international SMS by default; you may need to apply to enable it.
Issue 2: SMS delay. International SMS goes through multiple relays; a 1-5 minute delay is normal. If it exceeds 10 minutes, click "Resend."
Issue 3: Restricted countries. Some countries (e.g., India, Indonesia, Nigeria) have low arrival rates due to anti-spam policies. If retries fail, you might use WhatsApp or Telegram for reception (supported in some regions).
Issue 4: Roaming charges. Receiving SMS while roaming might incur fees depending on your plan.
Issue 5: Incorrect format. Do not include the country code when typing the number (it's selected separately in the dropdown).
Appeal Process When Old Number is Unavailable
If the old number is canceled, disconnected, or the SIM is lost, use the appeal process.
Appeal Entry: Log in to the Binance APP → "Support" bottom right → type "Phone Appeal" → select "I cannot access my old phone number."
Required Materials:
- High-definition photos of both sides of your ID.
- A 10-second video of you holding your ID saying: "I am XXX, ID number XXX, applying to change the linked phone for Binance account XXX from old_number XX to new_number XX, today's date is XXXX-XX-XX."
- Account ownership proof: Trading screenshots from the last 3 months, deposit/withdrawal addresses, KYC info, etc. (choose any 2).
- New number ownership proof: Photo of the new SIM card, service agreement, or recent bills.
Review Time: 3-7 business days. It's a manual review; there is no "paid rush" option—anyone claiming otherwise is a scammer.
48-Hour Withdrawal Cooling-off Period
Similar to an email change, changing your phone number triggers a 48-hour cooling-off period. This is because the phone number is the "second key" for account recovery. Attackers often change both email and phone immediately after stealing an account to prevent the owner from recovering it. The 48-hour window breaks this chain.
During this period, spot and futures trading and deposits are normal, but withdrawals, C2C selling, fiat withdrawals, and internal transfers are suspended.
Security Hardening After Changing Numbers
1. Back up the new number in your contacts. To avoid forgetting which number is currently linked.
2. Update records in your password manager. Update the phone field in your Binance entry in 1Password or Bitwarden.
3. Test receiving login alerts. Log out and log back in to confirm the SMS alert arrives at the new number.
4. Check if KYC info needs syncing. The "contact phone" in KYC info is separate from the login phone; we recommend updating it for consistency.
5. Re-familiarize with 2FA SMS flow. Operations like withdrawals need SMS; test with a small amount to ensure everything works.
Frequently Asked Questions
Q: Will changing numbers affect my KYC status? A: No. KYC is tied to your ID and face; the phone number is independent.
Q: Will it affect referral commissions? A: No. Commissions are tied to your UID, which doesn't change.
Q: Can I bind two phone numbers simultaneously? A: No. One Binance account can only be linked to one phone number.
Q: Is it safe to bind a virtual number (Google Voice, etc.)? A: Not recommended. Virtual numbers might be flagged by risk control, leading to freezes, and carry higher SIM Swap risks. Use a physical number.
Q: Can I temporarily use a friend's number? A: Strongly not recommended. Giving someone your SMS verification code is like giving them half the keys to your account. Apply for a temporary alternative with support instead.
Q: What if I change my phone but keep the same number? A: No re-binding needed. Just add the new phone to the authorized device list and reinstall Google Authenticator (restore with your 16-digit backup key).