IBAN to Local Format
Paste any IBAN to extract the underlying local banking fields — BLZ + Kontonummer for Germany, Sort Code + Account Number for the UK, RIB fields for France, and more. MOD-97 validation is performed automatically.
Supported Country Formats
The tool provides labeled breakdowns for the following countries:
BLZ (8) + Kontonummer (10)
Bank Code (4) + Sort Code (6) + Account (8)
Banque (5) + Guichet (5) + Compte (11) + Clé (2)
Bank Code (5) + Account (16)
Bank Code (4) + Account (10)
Bank (3) + Account (7) + Check (2)
Entidad (4) + Sucursal (4) + Control (2) + Cuenta (10)
CIN (1) + ABI (5) + CAB (5) + CC (12)
Clearing (5) + Account (12)
BLZ (5) + Account (11)
Check (2) + Bank/Branch (8) + Account (16)
For all other countries, the raw BBAN (Basic Bank Account Number) is displayed. You can cross-reference the BBAN structure with the IBAN format reference covering all 84 supported countries.
Why Extract Local Fields from an IBAN?
There are several situations where knowing the local components of an IBAN is useful:
- Legacy system integration: Older ERP and accounting systems may require BLZ + Kontonummer or Sort Code + Account Number rather than IBAN.
- Bank identification: The bank code within the BBAN identifies which bank holds the account, independent of the BIC lookup.
- Reconciliation: Payment records in older formats can be reconciled against IBAN-based records by extracting the shared account number.
- Developer testing: When constructing test cases, knowing the BBAN structure for each country avoids off-by-one errors in substring extraction.
Last updated: June 2026