What Is A Bank Bsb. In Australia BSB stands for Bank/State/Branch. BSB (Bank-State-Branch) Number is a six digits numerical codes used to identify an individual branch of a financial institution in Australia.

A BSB (or Bank, State, Branch code) is a six-digit number that identifies your bank and store in Australia.
The format of the BSB code is XXY-ZZZ.
It is far easier to assign a customer a BSB number than to have a customer remember a large string of text. A Bank State Branch (often referred to as "BSB") is the name used in Australia for a bank code, which is a branch identifier. My bank is BPI so i asked them for the BSB number and they gave me the SWIFT code and the Routing number instead.