Binance's SMS verification code is a crucial part of account security verification. Whether you are logging in, withdrawing funds, changing security settings, or binding a new device, you may need to enter an SMS verification code. Failing to receive the verification code means you cannot complete key operations, which is incredibly frustrating when you need to make urgent trades or fund transfers. The reasons for not receiving SMS verification codes are multifaceted, ranging from simple signal issues to carrier SMS filtering mechanisms, or even sending restrictions on Binance's servers. SMS delivery rates also vary by country and region; carriers in certain areas strictly filter overseas SMS, which is a major reason why Binance verification codes are not received. Before troubleshooting, please first confirm that your Binance account information is correct. You can log into the Binance official website to check whether the bound phone number matches the one you are currently using. Also, confirm that you are using the latest version of the Binance official APP, as older versions' verification code request endpoints may have been updated. If Apple users encounter other problems during installation or use, they can refer to the iOS installation guide for help. This article provides five tested solutions covering the vast majority of scenarios where verification codes are not received.
Solution 1: Troubleshoot Phone Signal and Basic Settings
Check Phone Signal
SMS verification codes are sent via traditional SMS channels and rely on the phone's cellular network signal. Even if you are browsing the internet using WiFi, receiving SMS still requires a cellular signal.
Troubleshooting Steps:
- Check the signal strength in the phone's status bar; if there is only one bar or no signal, SMS may not be received.
- Try moving to a location with a better signal (near a window, outdoors, etc.).
- Turn on Airplane Mode, wait for 10 seconds, and turn it off to force the phone to search and register on the network again.
- Remove the SIM card and reinsert it to ensure good contact.
- Try inserting the SIM card into another phone to test if it can receive SMS.
Check SMS Storage Space
Although modern smartphones usually have large storage capacities, some older phones, or phones used for a long time without clearing messages, might have full SMS storage:
- Open the SMS app.
- Delete some old messages (especially MMS messages with multimedia attachments).
- If the phone prompts "SMS storage is full", clear it and request the verification code again.
Check if Airplane Mode or Do Not Disturb is On
- Confirm Airplane Mode is turned off.
- Confirm Do Not Disturb / Silence mode is turned off (some phones' DND modes receive SMS silently without showing notifications).
- Confirm the phone does not have a scheduled SMS receiving function enabled.
Solution 2: Check SMS Blocking and Filtering
System Built-in SMS Filtering
Many phones come with built-in SMS spam blocking features. Binance's verification code SMS might be mistakenly flagged as spam or marketing SMS:
Android Devices:
- Open the SMS app.
- Check the "Spam", "Blocked", or "Filtered" folders.
- If you find the Binance verification code SMS there, add the number to the whitelist.
- Settings paths for different brands:
- Xiaomi: Messages -> Harassment Filter -> View blocked messages.
- Huawei: Messages -> More -> Blocked.
- OPPO/vivo: Messages -> Blocked messages.
- Samsung: Messages -> Settings -> Block numbers and spam.
iOS Devices:
- Open the "Messages" app.
- Check the "Unknown Senders" filter tab (if the "Filter Unknown Senders" feature is enabled).
- Binance's verification code might be categorized here.
- Go to "Settings -> Messages -> Unknown & Spam" to check your settings.
Third-Party Security Software Blocking
Security software installed on the phone (like 360 Security, Tencent Mobile Manager, Baidu Mobile Security, etc.) might block SMS from overseas numbers:
- Open the security software.
- Go to the "SMS Blocking" or "Harassment Blocking" module.
- Check the block logs to see if the Binance verification code is there.
- Add Binance's sending number to the whitelist.
- Alternatively, temporarily disable the security software's SMS blocking feature and request the verification code again.
Carrier SMS Filtering Services
Some carriers offer free spam SMS filtering services (such as China Mobile's "High-Frequency Harassment Call Protection"), which might block SMS from overseas:
- Call your carrier's customer service number.
- Ask if an SMS filtering/blocking service has been activated on your account.
- If activated, request them to add Binance's SMS sending number to the whitelist, or temporarily disable the service.
- You can also self-manage blocking settings via the carrier's official APP.
Solution 3: Verify Phone Number Settings
Confirm Bound Phone Number
Log into Binance and check if the phone number bound to your account is correct:
- Enter the Binance APP or Web version.
- Go to "Security Settings" or "Account Security".
- Check the number bound under "Phone Verification".
- Confirm the number is the one you are currently using, including the country code.
Country Code Issues
If you changed your phone number's home country, pay special attention to the area code setting:
- Mainland China: +86
- Hong Kong: +852
- Taiwan: +886
- Macao: +853
If the wrong area code is selected, the verification code will be sent to the wrong number.
Phone Number Canceled or Transferred
If your phone number has been canceled or transferred to someone else, you naturally cannot receive verification codes. In this case, you need to:
- Select "Security verification unavailable" in the Binance APP.
- Follow the process to submit identity verification documents.
- Wait for Binance customer service to review, and then change the bound phone number.
- The review usually takes 1-7 working days.
SIM Card Selection on Dual-SIM Phones
If you are using a dual-SIM phone, you need to confirm that the SMS is being received through the correct SIM card:
- Check "SIM Card Manager" in phone settings, ensuring the default SIM for receiving SMS is the one bound to Binance.
- Some phones may temporarily fail to receive SMS during a signal switch.
Solution 4: Use Alternative Verification Methods
Switch to Voice Verification Code
If the SMS verification code consistently fails to arrive, Binance usually provides a voice verification code as an alternative:
- On the verification code input page, find the "Get Voice Verification Code" or "Switch to Voice Verification" button.
- After clicking, Binance will call your phone number.
- Answer the call to hear the verification code numbers spoken over the audio.
- Enter the code you hear.
The advantage of a voice verification code is that it doesn't rely on the SMS channel, bypassing SMS blocking and filtering issues.
Switch to Email Verification
Some operations support using an email verification code instead of an SMS verification code:
- Check the verification page to see if there is an option to "Use email verification".
- After selecting it, the verification code will be sent to your registered email.
- Check your email inbox and spam folder.
- Enter the verification code received in the email.
Use Google Authenticator
If you have already bound Google Authenticator, many operations that require SMS verification can also be completed using Google Authenticator's dynamic code. It is highly recommended to set up Google Authenticator as a backup verification method while your phone number is working normally.
Solution 5: Handle Sending Frequency Limits
Verification Code Sending Cooldown
Binance limits the frequency of sending verification codes. If you click "Send Verification Code" multiple times in a short period:
- The system may pause sending, usually requiring a 1-5 minute wait.
- In extreme cases, you might need to wait 30 minutes to 1 hour.
- Do not repeatedly click the send button; this will only extend your waiting time.
Correct Approach:
- Click the "Send Verification Code" button once.
- Wait for at least 2 minutes.
- If not received, click it again.
- If still not received, wait for 5 minutes before trying again.
- If you haven't received it after three tries, troubleshoot other causes first before trying again.
Daily Sending Limit
Binance has an upper limit on the number of verification codes sent to a single phone number per day (usually 10-20 times). If you have reached the limit:
- Wait 24 hours and try again.
- Try using an email verification or voice verification code as an alternative.
- Contact Binance customer service to request a reset of the sending counter.
IP Address Restrictions
If Binance detects a massive number of verification code requests sent from your IP address, it may temporarily restrict that IP:
- Switch to a different network (switch from WiFi to Mobile Data, or vice versa).
- Wait a few hours and try again.
- Do not use automated tools to request verification codes in bulk, as this will trigger stricter restrictions.
Handling Special Circumstances
Cannot Receive Codes After Porting Numbers
If you recently ported your number to a different carrier (e.g., from China Mobile to China Unicom), you might experience a brief period of not receiving overseas SMS:
- After porting, it usually takes 24-72 hours for the SMS channel to fully recover.
- If you still cannot receive them after 72 hours, contact your new carrier to confirm if SMS services are fully activated.
- Confirm whether the new carrier has enabled the international SMS receiving feature.
Newly Registered Phone Numbers
Newly registered phone numbers may need their SMS functions activated:
- First, try receiving SMS verification codes from other platforms (like WeChat, Alipay, etc.) to confirm basic SMS functions are normal.
- New numbers might be flagged as "high risk" by some SMS gateways, causing them to reject sending verification codes.
- Contact your carrier to confirm that the number's SMS functions are fully activated.
Virtual Carrier Numbers
Users using virtual carrier numbers (like 170, 171 prefixes in China) may encounter issues receiving verification codes more frequently:
- Some SMS gateways do not support sending SMS to virtual carrier numbers.
- The SMS relay routing for virtual carriers is longer, and latency might be higher.
- If you cannot receive them for a long time, it is recommended to change the bound Binance number to one from a major traditional carrier.
Overseas Phone Numbers
For users using non-Mainland China phone numbers:
- Confirm that your phone can receive international SMS sent from China or overseas.
- Carriers in some countries disable international SMS receiving by default, requiring manual activation.
- The delivery time for international SMS is usually longer than domestic ones; you may need to wait 1-5 minutes.
Long-term Recommendations
Set Up Multiple Verification Methods
Do not rely solely on SMS verification codes. It is recommended to set up multiple verification methods simultaneously:
- Google Authenticator: The most recommended 2FA method, independent of networks and SMS.
- Email Verification: As a backup when SMS is unavailable.
- Hardware Security Key (like YubiKey): The highest level of security verification.
Keep Your Phone Number Active
- Ensure the phone number bound to Binance remains in a normal state of use.
- Do not leave the number unused for long periods (carriers may recycle a number if unused for over 3-6 months).
- If you plan to change your phone number, update the binding information in Binance first.
Periodically Verify Phone Number Availability
It is recommended to test receiving an SMS verification code in Binance periodically to ensure it won't be stuck at the verification step when you truly need it. You can trigger an SMS verification test by modifying a non-critical setting (such as notification preferences).