Błyskawiczna weryfikacja numerów IBAN

An IBAN (International Bank Account Number) is a standardized international numbering system that identifies bank accounts across borders. It consists of up to 34 alphanumeric characters including a country code, check digits, and bank-specific information.

Why it matters: IBANs prevent transaction errors, speed up international transfers, and ensure compliance with global banking standards.

To validate an IBAN:

1. Enter your IBAN in our validation tool
2. The system checks the format, length, and checksum
3. Receive instant results with bank details if valid

Our validator supports 89+ countries and provides real-time verification.

An IBAN has 4 main components:

• Country Code: 2 letters (e.g., GB for UK, DE for Germany)
• Check Digits: 2 numbers for validation
• Bank Code: 4 characters identifying the bank
• Account Number: Up to 30 characters for the specific account

Example: GB29 NWBK 6016 1331 9268 19

IBANs are used in 89+ countries worldwide, primarily in:

• Europe: All EU countries plus UK, Norway, Switzerland
• Middle East: UAE, Saudi Arabia, Qatar, Kuwait
• Other regions: Brazil, Kazakhstan, and more

View complete list of supported countries →

IBAN: Identifies the specific bank account (account number format)

SWIFT/BIC: Identifies the bank institution (bank identifier)

For international transfers, you typically need both:

• IBAN to specify the exact account
• SWIFT/BIC to identify the receiving bank

Our validator provides both when available for complete transaction details.