What is the code to block bank account if you lost your phone? Unfortunately, theft of a telephone or debit card can occur, you may have linked your telephone number to your bank account. Your bank account could be hacked. The first thing to do is to lock down your bank account to prevent unauthorized people from withdrawing your money or gaining further access to your bank account and private information.

It is therefore very important to know how to immediately block a bank account if your debit card or phone is stolen, or if fraudsters have tampered with your bank account.


  • Call your bank’s customer service and provide your bank details; Account number and name.
  • Log in to your internet banking and lock your ATM.
  • Visit the nearest bank branch and log in to block your debit card
  • Dial the bank routing number with an available phone;
  • Enter your account number and name

Code To Block Bank Account With The Phone If Your Debit Card Or Phone Is Stolen.

In one situation, your phone or ATM has been stolen or you suspect scammers are tampering with your account. With a mobile phone, you can immediately block your bank account for direct debits.

You can do this simply by entering the code to block bank account on your telephone. You will be asked to enter your account number and name. Your account is automatically blocked with every direct debit.

Some banks require you to call customer service to block the account, while others may require a USSD code.

Each bank has a unique USSD code and/or phone number that is different from others.

List of USSD Code To Block Bank Account in Nigeria

  • Firstbank sends “BLOCK” to 30012 via SMS
  • Zenith Bank – #966*911#
  • GTBank – *737*51*10#
  • Union Bank – Text “BLOCK CARD NUBAN” to 20123
  • UBA, call *919*10# from the registered bank account number
  • Fidelity Bank dials *770911# from the mobile number associated with your account
  • Keystone Bank Number 23470020003000
  • Call Sterling Bank 070078378464
  • EcoBank will send “STOP” ATM your account number to 0806326226
  • FCMB Bank Call + 2342798800
  • Access call +23412802500
  • Call Wema Bank 08039003700
  • Polaris call +2341270850
  • IBTC Bank dial *909# from the cell phone line associated with your account and dial my bank, then service request, then block the card.

How To Block Your Sim Card

You can lock your SIM card in the following ways;

Use of IMEI

IMEI is the phone’s identification number. You can find the IMEI number in the phone settings, package

In case your phone is stolen. The first thing to do is go to the nearest police station and file a complaint. Then go to your service provider with the official report and proof of identity. Your service provider locks the phone and the SIM card on the phone.

You may have forgotten the phone’s IMEI number, you can still lock the phone AND the SIM card. All you need to do is contact your service provider and ask to lock your phone. In this case, you will need to provide your ID and answer some questions to confirm that you are the real owner of the phone.

Why Do You Have To Block Your SIMCard For Bank Account?

If your cell phone or bank card wallet is stolen or lost, you may think that your biggest loss is the phone or the cards themselves. But there’s an even bigger threat: Using your phone or cards, the culprit or person who finds your lost items can gain access to your finances and even your identity.

Like many Nigerians, you probably have your banking information linked to your mobile phone number. With your phone at hand, the criminals can enter your online bank account and transfer the money from your account to theirs. And that’s not even the most dangerous thing that could happen. There are known cases where the victim’s full identity was copied or stolen after their mobile phone or bank card fell into the wrong hands. For this reason, the first thing to do in an emergency is to block your SIM card and bank account.

Conclusion – Code To Block Bank Account

You should understand that this process is only available to some banks. This means that other Nigerian banks do not need to activate theirs yet. Hopefully, they close in time.