How long is a Cypriot IBAN?

A Cypriot IBAN is exactly 28 characters: the country code CY, two check digits, a 3-digit bank code, a 5-digit branch code, and a 16-character account number.

What identifies the bank in a Cypriot IBAN?

The 3-digit numeric bank code immediately after the check digits identifies the institution (for example 002 for Bank of Cyprus or 005 for Hellenic Bank). The following 5 digits identify the branch.

How does the MOD-97 checksum work?

The first four characters (CY plus the check digits) move to the end, each letter becomes a two-digit number (A=10 to Z=35), and the result is divided by 97. The IBAN is valid only if the remainder is 1.

Does a pass confirm the account exists?

No. It confirms format and checksum only. Whether the account is open or who owns it can only be confirmed by the bank.

Is my data kept private?

Yes. The validator runs entirely in your browser. Nothing is uploaded, stored, or logged, so confidential account details stay on your device.

Cyprus IBAN Validator

Cypriot IBANs sit inside the SEPA zone and combine a 3-digit numeric bank code with a 5-digit branch code before the 16-character account number. Cyprus is a common corridor for cross-border euro payments, so a mistyped digit usually means a returned transfer and a delay. This validator breaks the IBAN into its fields and runs the ISO 7064 MOD-97-10 checksum before you submit anything.

Paste any IBAN beginning with CY and the tool validates it locally in your browser.

How it works

A Cypriot IBAN has five parts:

Country code — the fixed letters CY
Check digits — two digits from the MOD-97 algorithm
Bank code — three digits identifying the bank (for example 002, 005)
Branch code — five digits identifying the branch
Account number — 16 alphanumeric characters

The checksum moves the first four characters to the end, replaces each letter with its numeric value (A=10 through Z=35), and divides by 97. A remainder of exactly 1 means the IBAN is valid. The modulus is folded digit by digit so the large number stays within a safe integer.

Tips and notes

A length other than 28 fails immediately — the most common error.
The bank and branch codes are numeric for Cyprus, unlike the Gulf IBANs that use letters.
A valid checksum confirms format only. Use the iban-bic-lookup-tool to derive the BIC.