How to Change Binance Phone Number? Rules for +86/+852/+1/+65 Binding

The core rule for changing a bound phone number on Binance is: Each phone number can only be used for one Binance account in its lifetime, and once unbound, that number cannot be bound to another account for 180 days. When switching between country codes (e.g., from +86 to +852), you must go through triple verification (old phone + email + 2FA) and enter a 72-hour security lockout period (restricting withdrawals, futures trading, and API usage). This article explains binding rules for mainstream country codes like +86 (Mainland China), +852 (Hong Kong), +1 (USA/Canada), +65 (Singapore), +44 (UK), and +81 (Japan), how to handle SMS issues during international roaming, and common pitfalls. If you have just registered and haven't bound a phone number yet, visit the Binance Official site and click Register for Free. Users who are already bound and wish to switch country numbers should follow the process below.

1. Why You Might Need to Change Your Phone Number

Common scenarios include:

1. Moving Overseas: Relocating from China where roaming costs for +86 numbers are high or SMS cannot be received.
2. Returning Home: Moving back to your home country and letting an overseas number expire.
3. Job Changes: Returning a company-issued phone number after leaving a position.
4. Stolen/Lost Phone: SIM card being compromised or lost.
5. Carrier Upgrades: Upgrading old 2G/3G numbers to 4G/5G, resulting in a new number.

In any of these cases, it is critical to timely update your bound number; otherwise, losing your primary credential could lead to being locked out of your account.

2. Supported Countries and Phone Number List

Binance supports phone number binding for over 180 countries globally. Below are the rule differences for mainstream countries:

Country/Region	Area Code	SMS Delivery Rate	Compliance Entity	Special Restrictions
Mainland China	+86	88%	Binance.com	None
Hong Kong	+852	96%	Binance.com	None
Taiwan	+886	92%	Binance.com	None
United States	+1	93%	Binance US	Requires binance.us
Canada	+1	95%	Binance.com	Restricted in some provinces
United Kingdom	+44	94%	Binance UK	None
France	+33	94%	Binance EU	None
Germany	+49	95%	Binance EU	None
Netherlands	+31	95%	Binance EU	None
Japan	+81	91%	Binance Japan	Requires binance.co.jp
South Korea	+82	88%	Binance Korea	Local real-name required
Singapore	+65	96%	Binance.sg	None
Malaysia	+60	87%	Binance.com	None
Thailand	+66	85%	Binance TH	None
Indonesia	+62	82%	Binance ID	Local account required
India	+91	78%	Binance.com	Blocked by some carriers
Australia	+61	94%	Binance AU	None
Brazil	+55	80%	Binance.com	None
Russia	+7	70%	Binance.com	Sanction restrictions
UAE	+971	93%	Binance Dubai	None
Turkey	+90	88%	Binance TR	Local real-name required

Key Point: Switching from +86 to +852 / +65 / +44 / +81 may involve switching between different entities, which might require re-completing KYC.

3. Standard Process for Changing a Bound Number

Prerequisites

• 2FA (Google Authenticator) is enabled.
• The original phone number is still accessible (can receive SMS).
• The email address is still accessible (can receive mail).
• You have the physical SIM card for the new number (virtual numbers are not accepted).

Step 1: Log In

Log into the Binance Official site using your original email/phone and password.

Step 2: Access Account Management

Go to User Center → Account Management → Phone Number → "Edit/Change".

Step 3: First Verification (Old Phone)

The system sends an SMS to your original phone number; enter the 6-digit code.

Step 4: Second Verification (Email)

The system sends a verification email; click the confirmation link in the email.

Step 5: Third Verification (2FA)

Enter the 6-digit dynamic code from Google Authenticator.

Step 6: Enter New Phone Number

Select the country code (e.g., +852) and enter the new number (e.g., 91234567).

Step 7: Verify New Phone Number

The system sends an SMS to the new phone number; enter the 6-digit code.

Step 8: Confirm Changes

Click "Confirm" to enter the 72-hour security lockout period.

Step 9: Restrictions During the 72-hour Lockout

Within 72 hours of the change:

• Withdrawals: Frozen.
• API Withdrawal Permissions: Frozen.
• Large Futures Trades: Frozen.
• P2P/C2C Trading: Frozen.
• Other features: Normal.

Step 10: Lockout Ends

After 72 hours, all features automatically resume, and the new phone number becomes your primary credential.

4. Troubleshooting SMS Delivery During International Roaming

The most common issue during a change is not receiving the verification code on the new number.

Scenario 1: Using an Overseas Number While Abroad

Solutions:

1. Ensure your phone signal has at least 2 bars.
2. Disable any "SMS spam blocker" apps.
3. Wait 5 minutes before clicking "Resend".
4. If it still fails, switch to Email Verification (supported by some regions as an alternative).

Scenario 2: Binding an Overseas Number While in China

Solutions:

1. The overseas number must have international roaming enabled to receive SMS sent from China.
2. If you are not abroad, you can ask a friend to receive it (give the SIM card to a friend in that region).
3. Use a remote SMS forwarding service (e.g., HouseTexts or certain eSIM platforms).
4. NOT RECOMMENDED: SMS bypass/receiving platforms (most are blocked by Binance).

Scenario 3: Using a +86 Number While Abroad

Solutions:

1. Confirm the +86 number has international roaming enabled.
2. Whitelist via Carrier:
   • China Mobile: Dial 10086 to enable "Roaming Verification SMS".
   • China Unicom: Dial 10010 to enable "International Roaming SMS".
   • China Telecom: Dial 10000 to enable "Roaming Configuration".
3. If it still fails, use Email Verification.

Scenario 4: Carrier Blocking

Some small carriers (especially in India and SE Asia) filter international verification SMS as spam. Solutions:

• Contact carrier support to disable SMS filtering.
• Or switch to a different carrier.

5. Why Virtual Numbers Cannot Be Used

Binance has blocked the following types of virtual numbers:

• Google Voice (+1 virtual numbers).
• Textnow / Textfree (Free virtual numbers).
• SMS Receiving Platforms (SMS Activate, 5sim, etc.).
• Corporate Short Codes (Internal extensions).
• eSIM without physical SIM / VoIP (Some cheap eSIM providers).

Detection Method: Binance uses HLR Lookup databases to identify virtual numbers. Once identified, binding is immediately rejected.

Compliant Alternatives:

• eSIM with Physical Roaming (Airalo, Holafly) — Partially supported.
• Physical Roaming Cards (Giffgaff UK, Ultra Mobile US) — Supported.
• Standard SIM Cards from Local Carriers — Fully supported.

6. Common Errors During Phone Number Changes

Error 1: New Number Already Used by Another Account

Message: This phone number is already registered. Cause: The number was previously bound to another account (possibly your own old account). Resolution:

• If it's your own: Unbind it from the old account first.
• If it belongs to someone else (recycled number): Contact support for manual review and provide proof of ownership (issued by the carrier).

Error 2: Unsupported Number Format

Message: This number format is not supported. Cause: The number is from a virtual or high-risk range. Resolution: Use a standard number from a mainstream carrier, avoiding small carriers or derivative number ranges.

Error 3: Cannot Receive Old Phone Code

Message: Cannot receive old phone code. Cause: You have already lost access to the old phone number. Resolution: Go through the Account Appeal process, which requires your ID, a current selfie, and access to the original email.

Error 4: Lost 2FA

Message: 2FA code invalid. Cause: You didn't back up your 2FA key when switching phones. Resolution:

• Restore via Authenticator backup.
• No backup: Submit a 2FA reset request (takes 5–10 business days + identity verification).

Error 5: Withdrawal Restricted During Lockout

Message: Withdrawal restricted during lockdown. Cause: Security lockout period prevents withdrawals. Resolution: You must wait 72 hours. Emergency cases for VIP 3+ users can request an early unlock through their account manager.

7. Multi-Account Scenarios: Independent Numbers for Each Account

If you have multiple Binance accounts (personal + enterprise), each account must use a different phone number.

Management Advice:

• Personal Account: Use +86 or +852 primary number.
• Enterprise Account: Use +852 or +65 business number.
• Sub-accounts: Managed by the master account; no independent phone number required.

Prohibited Actions:

• Sharing one phone number across multiple accounts.
• Using VoIP virtual numbers for "account expansion".
• Buying, selling, or renting phone numbers for Binance binding.

If discovered, all associated accounts will be frozen simultaneously.

8. Post-Change Security Hardening

After changing your number, it is recommended to perform the following:

Hardening 1: Test SMS Reception on the New Number

• Manually trigger a login SMS.
• Confirm the new number can receive it.
• Avoid finding out there's an issue only when you urgently need a code.

Hardening 2: Update 2FA Backups

• Set up Google Authenticator on your new phone.
• Back up the 16-digit key in an offline location (paper, safe).
• You can keep the Authenticator on your old phone as a backup.

Hardening 3: Check Other Bindings

• Bank card bindings (fiat deposits).
• Backup email addresses.
• Address information.
• Withdrawal whitelist.

All secondary authentication channels related to your phone number must be updated synchronously.

Hardening 4: Enable Hardware 2FA

Changing your number is a great time to upgrade to hardware 2FA (YubiKey). Hardware 2FA does not rely on a phone number and protects against SIM swap attacks.

9. KYC Impact of Switching Countries

If you switch from +86 to +1 (US number), Binance may require:

1. Re-completing KYC (The US requires an SSN instead of an ID card).
2. Migrating to binance.us (If you actually reside in the US).
3. Signing tax forms (W-9/W-8BEN).

Similarly:

• Switching to +81 Japan → May migrate to Binance Japan.
• Switching to +82 South Korea → May migrate to Binance Korea.
• Switching to +44 UK → May migrate to Binance UK.

Migration is not optional; regulatory requirements in certain countries mandate localization.

FAQ

Q1: Can I bind multiple phone numbers at once?

A: No, you can only bind one primary phone number. However, you can set up one auxiliary phone number (for notifications only, not verification). The primary number is used for login/withdrawals/2FA, while the auxiliary receives only notification SMS.

Q2: Will my old phone number still receive Binance notifications?

A: Notifications will stop immediately after the change is complete. All messages are sent to the new number. If you want the old number to still receive notifications, add it to the auxiliary numbers list.

Q3: Can the 72-hour lockout be shortened?

A: Not for standard users. VIP 3+ users can apply for accelerated unlocking through an account manager (usually shortened to 24–48 hours). Emergency lockouts (due to theft) will actually extend the time.

Q4: What if I have an open futures position before changing numbers?

A: Close the position before changing. During the lockout, you cannot increase positions, but you can reduce or close positions (to avoid being unable to act during liquidation). Existing positions will remain during the lockout and can be operated normally afterward.

Q5: If I changed countries and my number, do I need to redo KYC?

A: In most cases, no. Unless: (1) You switch to a country with localization requirements (USA/Japan/South Korea); (2) Your old KYC has expired (over 2 years with no trades); (3) Your account triggers risk control and requires re-verification.

After the change, it is highly recommended to update your email and security settings as well. Return to Categories and check the "Security Hardening" and "KYC Level 3 Verification" categories for further learning.