In banking, stands for Basic Bank Account Number . It is the domestic version of an account number that is later integrated into the International Bank Account Number (IBAN) for cross-border transfers.
Что такое IBAN, BBAN, SWIFT, BIC, ACH, SEPA, SCT и SDD? BBAN-399_1K
A BBAN typically includes a domestic bank code, a branch identifier, and the specific account number. In banking, stands for Basic Bank Account Number