Static IBAN format check
Check ES9121000418450200051332 for Spain
Check the country prefix, length, and modulo-97 check digits of Spain IBAN ES9121000418450200051332 using a build-time result.
Last updated 2026-09-03
The country length, prefix, and ISO 13616 modulo-97 result agree for this fixture.
Check details
- Normalized IBAN
- ES91 2100 0418 4502 0005 1332
- Country
- Spain (ES)
- Total length
- 24 characters
- Modulo-97 remainder
- 1
- National structure
- ES + 2 check digits + bank and branch identifiers + national check digits + account number
What this check covers
Spanish IBANs are 24 characters and retain domestic bank, branch, and account control fields.
The checker removes spaces, converts the value to uppercase, moves the first four characters to the end, converts letters to numbers, and confirms that the modulo-97 remainder is one.
Spain IBAN structure
The expected layout is ES + 2 check digits + bank and branch identifiers + national check digits + account number. This page compares the 24-character fixture with that structure.
A passing checksum does not prove that an account exists, identify its owner, or confirm that a transfer can be completed. An official institution check is still required.