BLZ Number (Bankleitzahl)
Definition
A BLZ (Bankleitzahl) is an 8-digit bank code used in Germany and Austria to identify specific banks and their branches. The term "Bankleitzahl" literally translates to "bank routing number" in English.
Usage
BLZ numbers are used for:
- Domestic bank transfers within Germany and Austria
- Processing direct debits (Lastschrift)
- Identifying specific banking institutions
- SEPA transactions in combination with IBAN
Structure
The 8-digit code is structured as follows:
- First four digits: Bank identification
- Last four digits: Regional or branch identifier
Regional Application
BLZ numbers are primarily used in:
- Germany (as primary bank identifier)
- Austria (similar system with own number ranges)
Modern Usage
While BLZ numbers are still in use, they are increasingly being incorporated into IBAN (International Bank Account Numbers) for international transfers within the SEPA (Single Euro Payments Area) system. In German IBANs, the BLZ forms part of the basic bank account number.