IBAN Format Reference
IBAN Formats by Country
Every country that uses the IBAN standard has its own fixed format: length, structure, and field composition. Select a country below to see its full format specification.
92
Countries supported
42
SEPA members
ISO 13616
Standard
About IBAN Format Standards
The International Bank Account Number (IBAN) is defined by ISO 13616. Every IBAN begins with a 2-letter country code and 2 check digits, followed by a country-specific Basic Bank Account Number (BBAN). The BBAN structure, its length, field composition, and character types, is defined independently by each country's banking authority.
Looking for a Northern Cyprus UBAN?
CT numbers are part of the Northern Cyprus UBAN system, a local 28-character standard, not the official IBAN registry above.