The 27-digit IBAN number refers specifically to the structure used in Italy.
An International Bank Account Number (IBAN) is a standardized way to identify bank accounts across international borders. While IBANs can be up to 34 characters long, the Italian IBAN format uses exactly 27 characters. These characters provide all the necessary information to identify the bank, branch, and account number.
Structure of the 27-Digit Italian IBAN:
The 27 characters are broken down as follows:
| Position(s) | Description | Example |
|---|---|---|
| 1-2 | Country Code (ISO 3166-1 alpha-2) | IT |
| 3-4 | Check Digits | 60 |
| 5 | CIN (Control Internal Number) | X |
| 6-10 | ABI (Bank Code) | 03069 |
| 11-15 | CAB (Branch Code) | 01000 |
| 16-27 | Account Number | 123456789012 |
- Country Code (IT): Identifies Italy as the country where the account is held.
- Check Digits: Two digits used to validate the IBAN and reduce errors during transactions.
- CIN (Control Internal Number): A single character check digit.
- ABI (Associazione Bancaria Italiana): Identifies the specific bank.
- CAB (Codice di Avviamento Bancario): Identifies the specific branch of the bank.
- Account Number: The individual's bank account number.
Therefore, a complete Italian IBAN will be a string of 27 alphanumeric characters fitting the structure described above.
