Quick Answer: Dial *323# to check your MTN data balance in Nigeria. This code works on any phone and shows your remaining data instantly.
How to Check Your Data Balance
The fastest way to check your data balance is:
*323#
Here’s exactly how to use it:
- Open your phone’s dialer
- Type *323#
- Press the call button
- Your data balance appears within 3 seconds
The message shows your remaining data and expiry date.
MTN Data Balance Code Step-by-Step

Method 1: Direct Code (*323#)
- Code: *323#
- Time: 3 seconds
- Works on: Any phone with MTN SIM
- Cost: Free
Method 2: Main Menu (*312#)
- Dial *312#
- Select “Data Services”
- Choose “Check Data Balance”
- View your remaining data
Method 3: SMS Method
- Send “BAL” to 131
- Receive balance via SMS
- Useful when USSD fails
Learn more about MTN services and features on the official website.
Code to Check Data Balance on MTN (Alternative Methods)
If *323# doesn’t work, try these backup options:
*312*4# – Alternative data check code *131*4# – Legacy code (may still work in some areas)
How to Check MTN Data Balance When Code Fails
Problem: “Connection problem or invalid MMI code” Solution:
- Check if you typed *323# correctly
- Move to area with better network signal
- Restart your phone
- Try during off-peak hours (6-8 AM)
Problem: “USSD session timed out” Solution:
- Network is busy – try again in 5 minutes
- Use SMS method: Send “BAL” to 131
- Try early morning when network is less congested
For more MTN troubleshooting tips, visit the MTN support center.
MTN Data Check Code vs Other Codes
Service | Code | Speed | Notes |
---|---|---|---|
Data Balance | *323# | 3 seconds | Primary method – fastest |
Airtime Balance | *310# | 3 seconds | Check call/SMS credit |
All Services | *312# | 5-10 seconds | Main MTN menu |
Data via Menu | *312# → Data | 10-15 seconds | Alternative method |
SMS Balance | BAL to 131 | 30 seconds | When USSD fails |
📱 Quick MTN Codes Reference
Which Code Can I Use to Check MTN Data Balance?
- Primary Code: 323# (fastest)
- Backup Code:312# → Data Services
- SMS Option: Send “BAL” to 131
- App Option: MyMTN app (requires internet)
Code for MTN Data Balance – Quick Reference
Main Code: 323# Alternative:312*4# SMS: BAL to 131 Menu: *312# → Data Services
What Code to Check MTN Data Balance Works Best?
*323# is the most reliable because:
- Works on all phone types
- Fastest response time
- No menu navigation needed
- Free to use
- Available 24/7
MTN Data Balance Code 2025 Updates
The Nigerian Communications Commission standardized USSD codes in 2023. The current working codes are:
- *323# – Primary data balance code
- *312# – Main MTN menu
- Old codes like 1314# may not work consistently
Code to Check MTN Data Balance USSD Code Tips
Best Times to Use:
- Early morning (6-8 AM)
- Late night (11 PM – 1 AM)
- Avoid peak hours (12-2 PM, 6-9 PM)
Network Issues:
- Move closer to window if indoors
- Go outside for better signal
- Avoid crowded areas during events
Frequently Asked Questions On Code To Check MTN Data Balance
*323# is the MTN data balance code for Nigeria
Dial *323# and press call. Your balance appears immediately.
Use *323# – it’s the official standardized code for all MTN users in Nigeria.
Try *312# → Data Services, or send “BAL” to 131 via SMS.
*323# remains the current code. MTN hasn’t changed it since the 2023 standardization.
Related MTN Codes You Need
- Check Airtime: 310#
- Buy Data:312#
- Recharge: 311PIN#
- Check Number: *123#
Summary
The MTN data balance code is 323#. This code works instantly on any phone with an MTN SIM card in Nigeria. If it fails, use 312# → Data Services or send “BAL” to 131.
Bookmark this page for quick reference when you need to check your data balance. For comprehensive MTN guides, check Nigeria Communications Commission updates on telecom regulations.