Diamond Bank USSD Codes in Nigeria (2026)
Many Nigerians still search for Diamond Bank USSD codes in 2026. However, it is important to know that Diamond Bank no longer operates as an independent bank. Diamond Bank merged with Access Bank in 2019, and all former Diamond Bank customers were migrated to Access Bank’s banking platform.
As a result, the old Diamond Bank USSD banking services have been replaced by Access Bank’s USSD banking platform.
What Happened to Diamond Bank?
Diamond Bank was one of Nigeria’s leading commercial banks before it merged with Access Bank in 2019. Following the merger, all banking operations, customer accounts, and digital banking services became part of Access Bank.
Therefore, there is no active Diamond Bank USSD code in 2026.
Former Diamond Bank USSD Code
Before the merger, Diamond Bank customers used:
*426#
for mobile banking transactions.
Today, former Diamond Bank customers are expected to use Access Bank’s USSD banking platform.
Current USSD Code for Former Diamond Bank Customers
The official Access Bank USSD code is:
*901#
This code allows former Diamond Bank customers and Access Bank customers to perform banking transactions directly from their mobile phones.
Complete List of Access Bank USSD Codes for Former Diamond Bank Customers
| Service | USSD Code |
|---|---|
| Main Banking Menu | *901# |
| Check Account Balance | 90100# |
| Transfer Money | 901Amount*AccountNumber# |
| Airtime for Self | 901Amount# |
| Airtime for Others | 901Amount*PhoneNumber# |
| Open Account | 9010# |
| Buy Data | 9018# |
| Generate OTP | 9014*1# |
| Block Account | 901911# |
| Retrieve BVN | 5650# |
These are the active USSD codes available to former Diamond Bank customers today.
How to Register for Access Bank USSD Banking
If you were formerly a Diamond Bank customer, you can activate USSD banking by:
Step 1
Dial:
*901#
Step 2
Select the registration option.
Step 3
Verify your account details.
Step 4
Create a 4-digit transaction PIN.
Step 5
Confirm the PIN.
After successful activation, you can begin using the service.
How to Check Your Account Balance
To check your account balance:
Dial:
*901*00#
Enter your transaction PIN when prompted.
Your account balance will appear instantly.
How to Transfer Money
To transfer money:
Dial:
*901AmountAccountNumber#
For example:
*90150000123456789#
Follow the prompts to confirm the transaction and enter your PIN.
How to Buy Airtime
To recharge your own phone:
*901*Amount#
Example:
*901*1000#
To buy airtime for another person:
*901AmountPhoneNumber#
Example:
*90150008031234567#
How to Buy Data
To purchase data:
Dial:
*901*8#
Select your preferred network and data plan, then confirm payment.
How to Open an Account
To open a new Access Bank account:
Dial:
*901*0#
Follow the prompts and provide the required details.
How to Retrieve Your BVN
To check your BVN:
Dial:
*565*0#
Your BVN will be displayed on your screen. Network charges may apply.
How to Block Your Account
If your phone is stolen or compromised:
Dial:
*901*911#
Follow the prompts to block your account immediately and prevent unauthorized transactions.
Benefits of Access Bank USSD Banking
Some advantages include:
- No internet required
- Available 24/7
- Works on all mobile phones
- Fast transactions
- Secure banking
- Easy airtime purchases
- Instant transfers
- Convenient account management
These features make the service useful for both former Diamond Bank and current Access Bank customers.
Common Problems and Solutions
Incorrect PIN
Entering the wrong PIN multiple times may restrict access.
Solution: Contact Access Bank customer support.
Insufficient Funds
Transactions may fail if your balance is too low.
Solution: Fund your account and try again.
Network Issues
Poor network coverage can interrupt USSD sessions.
Solution: Move to a location with better signal strength.
Session Timeout
USSD sessions may expire after a period of inactivity.
Solution: Dial the code again and complete the process promptly.
Unregistered Number
The service works best on the phone number linked to your bank account.
Solution: Update your details with Access Bank if necessary.
Frequently Asked Questions (FAQs)
Does Diamond Bank still exist in 2026?
No. Diamond Bank merged with Access Bank in 2019 and no longer operates independently.
What was the Diamond Bank USSD code?
The former Diamond Bank USSD code was *426#.
What is the current USSD code for former Diamond Bank customers?
The current code is *901#.
Can I still use *426#?
No. Former Diamond Bank customers are now expected to use Access Bank’s USSD platform.
How do I check my balance?
Dial *901*00# and enter your PIN.
How do I transfer money?
Dial *901AmountAccountNumber# and follow the prompts.
How do I buy airtime?
Dial *901*Amount# for yourself or *901AmountPhoneNumber# for another person.
How do I block my account?
Dial *901*911# and follow the instructions.
Can I use the service without internet?
Yes. Access Bank USSD banking works without internet access.
Can former Diamond Bank customers use all Access Bank USSD services?
Yes. Former Diamond Bank customers can access Access Bank’s USSD banking services after registration.
Conclusion
There is no active Diamond Bank USSD code in 2026 because Diamond Bank merged with Access Bank in 2019. Former Diamond Bank customers now use Access Bank’s *901# USSD banking service for transfers, airtime purchases, balance inquiries, bill payments, account management, and other banking transactions. The platform remains one of the most convenient ways to bank in Nigeria without internet access.
