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Codes To Block Your Bank Account If Your Debit Card Is Stolen

Last updated on August 6th, 2023 at 06:48 am


A few years back, a friend was robbed, his wallet which contained some monies and his ATM Debit Card were stolen. Good for him, his mobile phone wasn’t stolen. And within a few minutes, he communicated with his bank by dialing the USSD code to block his account number.

This means his ATM card with robbers was useless. They couldn’t make any transactions from his bank account.

So, how exactly can you block your bank account if your Debit Card is stolen or you feel that your account details have been compromised? How would you block your account number if the unfortunate incident happened during the weekend?


In this guide, we’ve compiled the list of USSD codes you can dial from your mobile phone to stop a transaction from your card in a situation whereby your ATM card is either stolen or you suspect foul play.

Apart from being stolen, you could also misplace your debit card which could fall in the hands of the bad guys out there.

If you found yourself in this situation, you can use the codes below in accordance with your bank to block your account number in an event of unavoidable circumstances.

Here are USSD codes or emergency phone numbers of Nigerian banks you can use to block your bank account from third-party access when the situation arises:

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Nigerian Banks USSD Code To Block Bank Account/Emergency Number
Access Bank Call +23412802500
First Bank Send Block to 30012 via text message
Keystone Bank Call 23470020003000
Zenith Bank *966*911#
Sterling Bank Call 070078378464
Polaris Call +2341270850 or Dial *833*13#
FCMB Call + 2342798800
GT Bank *73751*10#
EcoBank Text STOP ATM your account Number to 0806326226
Wema Bank Call 08039003700
Stanbic IBTC Bank Dial *909# and select my bank and select service request then select block card
UBA Dial *919*10#
Fidelity Bank *770911#
Union Bank Send BLOCK CARD NUBAN to 20123
Citibank Nigeria Call  +234 1 279 8400 or +234 1 463 8400
Globus Bank Call 01-2259000, 01-2259001
Heritage Banking Company *745#
Standard Chartered Call +234 270 4611 -4, +234 800 123 5000
Providus Bank Call +234 70077684387
SunTrust Bank Nigeria Call +234 908 733 1440
Titan Trust Bank 012265129, 012265100, 07000200200


To block your bank account number, you may need to have your NUBAN account number handy and other info to be sure you’re the true owner of the account.

Also, the above codes will only work on the phone number you registered with your bank.

Stay safe, don’t be careless with your ATM debit card, and don’t share your banking details with a total stranger who could use your details to steal from your bank account.

But in case the situation is beyond your control, use the above codes to block your account number or call any of the emergency phone numbers of your bank.

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