BANK 426

The USSD service (*426#) is one of the Bank’s strategies to ensure financial inclusion.
It’s quick, secure and an easy way for all banked customers to perform banking
transactions with convenience, regardless of segment or mobile device type


  • Convenience at the client’s fingertips – it is simple, quick and easy to use
  • USSD application allows roaming. USSD application can still work while a user is away from home network.
  • No internet connection is required, control is by the GSM network.
  • Available 24 hours a day and 7 days a week.
  • Saves you the stress of queuing up in the banking halls


  • The mobile number to be used MUST be the number that is registered with the bank.
  • Allows you to select which account to transact with, where you have more than 1 DIAMOND account.
  • The maximum daily transfer limit is N100,000 (combination of Intrabank and Interbank) and maximum daily airtime purchase is N3,000.
  • The service is available to Airtel, 9Mobile, GLO and MTN subscribers and dependent on full network signal from your telecom provider.
  • The money is deducted directly from your DIAMOND account.
  • Transactions can be done within and outside Nigeria.


Registration with Debit Cards

  • Dial *426# with your registered phone number
  • Enter the last 6 digits of your Debit Card number.
  • Enter your account number
  • Create a 4-digit PIN.


  • Airtime Top up (Self-airtime recharge and Third-Party Recharge) for Airtel, MTN, GLO and 9Mobile
  • Account balance enquiry
  • Funds transfer (within and outside Diamond Bank)
  • Debit card request
  • PIN change


Dial *426*Amount# To Purchase Airtime (self)
Dial *426*Amount*Account Number# To Transfer Money (Within & Outside DB)
Dial *426*00# To Check Account Balance
Dial *426*Amount*Phone Number# To Purchase Airtime (For Friends and Family)
Dial*426*0# To Change PIN
Dial *426*463# To subscribe to C.R.E.A.M (learn more)



Who can use this service?

• Customers registered with any of the mobile network operators-MTN, GLO, Airtel or 9Mobile • All individual accounts, (Joint, corporate, and multiple signatory accounts are not eligible for this service.)

Can I use this service when I am overseas?

Yes, Transactions can be done within and outside Nigeria, if your number is roaming.

How secure is this service?

Security for customers is always Diamond Bank’s top priority, to conclude a transaction you require a PIN which is known only known by you.

Can I use this service on more than one account?

Yes, the service is automatically linked to all your accounts so you can select which account to use when performing a transaction.

If I am not active on Internet Banking and Mobile App, will I be able to register and use *426# service?

Yes, you can. *426# is independent of Internet Banking and Mobile App.

Why am I locked out?

You would be locked out from this service if you enter a wrong PIN three times. You need to contact the Bank for assistance

What happens when I lose my phone?

Please contact the Bank immediately to deactivate you from the service.

For assistance, kindly Call our Contact Centre on +234 700 300 0000, send email to or Visit any of our branches.