Article Was Last Updated August 26, 2026
Need to block your Access Bank account after losing your phone or ATM card? Dial *901*911# from a mobile phone and follow the instructions. The Access Bank account blocking code works through USSD, so you do not need internet access.
If your phone is missing, you can use the Access Bank USSD code from another phone to start the blocking process. You can also contact Access Bank if you notice an unauthorised transaction or suspect that someone has gained access to your banking details.
Access Bank Account Blocking Code
The Access Bank account blocking code is *901*911#.
Dial the code from any mobile phone and follow the instructions on the screen. You will need the phone number registered to the Access Bank account you want to block.
| Details | Information |
| Access Bank blocking code | *901*911# |
| Service | Account blocking |
| Phone required | Any mobile phone |
| Internet required | No |
| Smartphone required | No |
| USSD PIN | Required where requested |
| Availability | 24/7 |
How to Block Access Bank Account Using USSD
Follow these steps:
- Dial *901*911# from any mobile phone.
- Select the account-blocking option displayed.
- Enter the phone number registered to your Access Bank account.
- Select the account you want to block if prompted.
- Enter your USSD PIN where required.
- Complete the request and wait for the confirmation message.
Access Bank says customers can dial *901*911# from any mobile phone to deactivate and blacklist the USSD profile linked to the registered number.
How to Block Access Bank Account From Another Phone
You can block your Access Bank account from another phone if you have lost your own phone or cannot access it.
Dial *901*911# on the available phone, enter the phone number linked to your Access Bank account and follow the instructions. Access Bank states that the code works from any mobile phone.
You do not have to wait until you recover your missing phone before starting the blocking process.
How to Block Account After Losing Your Phone
If you lose your phone, use *901*911# from another phone to block the account.
After blocking the account, contact your mobile network provider to secure your SIM card. You should also contact Access Bank if you need help with your account or notice any suspicious transaction.
How to Block Account After Suspected Fraud
If you notice an unauthorised transaction or believe someone has obtained your banking details, dial *901*911# to block the account.
Then contact Access Bank and report the transaction or suspected fraud. Do not give anyone your PIN, OTP, password or complete card details.
If your ATM card is also compromised, ask Access Bank to block the card.
How to Block Access Bank ATM Card
Blocking an ATM card is different from blocking a bank account.
If your Access Bank debit card is lost or stolen, contact Access Bank immediately through an official customer service channel and request that the card be blocked.
If you also suspect that someone can access your account, use *901*911# to block the account.
| Action | Purpose |
| Block Access Bank account | Restricts access to the account |
| Block Access Bank ATM card | Stops use of the affected card |
| Report suspected fraud | Alerts the bank to suspicious activity |
| Contact customer care | Provides assistance with account or card security |
How to Block Access Bank Account Online
Access Bank provides an online Block Account service through its Service Hub.
You can use the online form to submit an account-blocking request. For an urgent situation involving a lost phone, card or suspected fraud, you can use *901*911# without an internet connection.
Customer Care Number for Account Blocking
You can contact Access Bank if you cannot complete the account-blocking process through USSD.
The bank lists these customer service numbers:
- 0700 300 0000
- +234 201 271 2005-7
- +234 201 280 2500
- 0201 227 3000
Use Access Bank’s official customer service channels when reporting a lost phone, lost card, suspected fraud or an account problem.
Is the Access Bank Account Blocking Code Free?
Access Bank provides account blocking through its USSD service. USSD charges may apply under the bank’s current USSD charging terms.
What Happens When You Block Your Bank Account?
When you use *901*911#, Access Bank deactivates and blacklists the USSD profile associated with the registered phone number.
If you need to restore access after blocking the account, contact Access Bank through its customer service channels or visit a branch.
How to Unblock Access Bank Account
If you blocked your Access Bank account and need to restore access, contact Access Bank through its official customer service channels or visit a branch.
The bank may require you to confirm your identity before restoring access.
What to Do After Blocking Your Access Bank Account
If you blocked the account because of a lost phone, stolen card or suspected fraud:
- Contact Access Bank through an official customer service channel.
- Report any unauthorised transactions.
- Contact your mobile network provider if your phone or SIM is missing.
- Replace a lost or stolen ATM card.
- Keep details of suspicious transactions for your report.
