mBank — sort code (bank code)
This page lists the currently active identifiers and sort codes for mBank (mBank Spółka Akcyjna) based on the NBP EWIB register. It covers only the active sort codes in the register.
Bank number / identifier
Identifier for mBank in the account number
1140
All active mBank sort codes start with 1140; the remaining active codes start with 1142
Sort codes
- Active sort codes (8 digits): 64
- Active 4-digit prefixes: 1140, 1142
Sample sort codes:
11400000114000261140003911420008
How to recognize a mBank account?
- A Polish account number (NRB) has 26 digits.
- The international Polish form (IBAN) is "PL" + NRB — 28 characters.
- The bank is identified by the full 8-digit sort code (digits 3–10 of the NRB).
Example for sort code 11400000 (the first active code in the register):
- NRB:
9 1140 0000 0000 0000 0000 0000 - IBAN:
PL69 1140 0000 0000 0000 0000 0000
Example account number
The number was generated programmatically from sort code 11400000 — it follows the NRB format and passes the checksum (MOD-97).
- NRB:
9 1140 0000 0000 0000 0000 0000 - IBAN:
PL69 1140 0000 0000 0000 0000 0000
Example number — fictional, not a real account. The number does not belong to any person or entity.
Check an account number
Paste a Polish account number (NRB or IBAN) to identify the bank and see the next Elixir settlement session.
Frequently asked questions
How many digits does a mBank account number have?
A Polish account number (NRB) has 26 digits: 2 check digits, an 8-digit sort code and a 16-digit account number within the bank. The international Polish form (IBAN) is "PL" + NRB, i.e. 28 characters.
Is the mBank sort code 1140?
In the NBP EWIB register mBank (mBank Spółka Akcyjna) currently has 64 active sort codes (8 digits). All of them start with 1140, 1142. The bank is identified by the full 8-digit sort code.
Can I recognize a mBank account by the first four digits?
Not reliably. The bank is identified by the full 8-digit sort code (digits 3–10 of the NRB), not by the 4-digit prefix alone.
Source: NBP EWIB register.