Greek IBAN generator

IBANs in Greece have 27 characters and start with GR. The one below is random, follows the national structure and passes the MOD-97 check, so form validation accepts it. No bank issued it.

Country

Format

Realistic

GR0502600253536410960172694

New IBAN

Country GR
Check digits 05
Bank code 026
Branch code 0025
Account number 3536410960172694

Generate a list Up to 100 IBANs, as CSV, JSON, SQL or plain text

How many

File format

In CSV, JSON and SQL, every IBAN segment (bank, branch, account, check digits) gets its own column.

MOD-97 valid

Realistic mode: real bank code, random account number. No bank issued this IBAN, but it could match a real account by chance. Never use it for payments.

Check an IBAN

Paste an IBAN from any country to check its length, format and check digits.

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Greek IBAN format

Length, pattern and the position of each segment in GR IBANs, with a sample IBAN.

IBAN length	27
BBAN length	23
BBAN pattern	`3n4n16c`
Structure	`GRkk bbb bbbb cccccccccccccccc`
Example, electronic	`GR1601101250000000012300695`
Example, print	`GR16 0110 1250 0000 0001 2300 695`
Letters in the BBAN	Positions 12–27: letters or digits
National check digits	None
SEPA	Member (EPC list, December 2025)
Source	SWIFT IBAN Registry, Release 102 (June 2026)

Position by position

Segment	Positions	Length	Example
Country	1–2	2	`GR`
Check digits	3–4	2	`16`
Bank code	5–7	3	`011`
Branch code	8–11	4	`0125`
Account number	12–27	16	`0000000012300695`

In the pattern, n stands for a digit, a for an uppercase letter and c for a letter or digit. The number before each letter is how many characters that block has.

Real bank codes in realistic mode

In realistic mode, the default, the generator takes the bank code from this list and keeps the account number random, so no bank issued these IBANs. With Realistic off, the bank code is random too.

Bank	Bank code	Branch code
National Bank of Greece	`011`	`0040`
Alpha Bank	`014`	`0101`
Piraeus Bank	`017`	`2029`
Eurobank	`026`	`0025`

What to test with GR IBANs

Accept exactly 27 characters for GR, after removing spaces, and reject 26 or 28.
Letters or digits at positions 12–27: a digits-only regex rejects valid GR IBANs. Realistic mode, the default, uses digits only there; with Realistic off, the generator puts letters there about half the time.
Ready-made invalid values for negative tests: GR1601101250000000012300696 (last character changed, MOD-97 fails) and GR160110125000000001230069 (one character missing).
Bank directory checks: by default the generator uses real bank codes such as 014 (Alpha Bank), and random ones with Realistic off, so you can test a known and an unknown bank.

About IBANs in Greece

Greek IBANs are 27 characters long: a 3-digit bank code, a 4-digit branch code and a 16-character account number. Greece has used the euro since 2001.

Questions about IBANs in Greece

How long is an IBAN in Greece?

27 characters: the country code GR, two check digits and a national part (BBAN) of 23 characters.

What does an IBAN from Greece look like?

For example GR16 0110 1250 0000 0001 2300 695. That is the print format, in groups of four. Forms and files usually take it without spaces: GR1601101250000000012300695.

Can Greek IBANs contain letters?

Yes. Letters or digits are allowed at positions 12–27, although the registry example has only digits there.

Where is the bank code in Greek IBANs?

The bank code, at positions 5–7: 011 in the registry example. The branch code is at positions 8–11 (0125). By default (realistic mode) the generator uses real bank codes, such as 011 for National Bank of Greece.

Will a test IBAN for Greece pass validation?

It passes the checks most forms run: country code, length, character format and MOD-97 check digits. In realistic mode, the default, the bank code is real too, so a bank directory check accepts it. An account lookup or a payee name check will not confirm it, because the account number is random.

Can I use a generated Greek IBAN to sign up for a service or receive money?

No. It is test data that no bank issued to you. Money sent to it is rejected or, if the number happens to belong to someone, reaches a stranger, and using it for a sign-up, a free trial or a direct debit is misuse. Your own IBAN is in your banking app and on your statements.

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