Integrate IBAN checks into your software
Try a validation, inspect the response, then connect your application through the API or an existing integration.
Explore the API workflow27 characters: the country code, two check digits, then the BBAN cut as below.
FR1420041010050500013M02606
The example comes from the ISO 13616 registry; it belongs to nobody. Positions count from the first character of the IBAN.
| ISO code | FR |
|---|---|
| Length | 27 characters |
| Check digits | positions 3 to 4, ISO 7064 mod 97-10 |
| Bank code | positions 5 to 9 · 5!n |
| Branch code | positions 10 to 14 · 5!n |
| Account number | positions 15 to 27 · 11!c2!n |
| Official example | FR14 2004 1010 0505 0001 3M02 606 |
| SEPA area | member · SCT, SDD, SCT Inst |
| Verification of Payee | mandatory for the country's providers |
| Bank-code register | IBANforge composite map, assembled from BIC directories (not a national register) |
SWIFT notation: n = digits, a = upper-case letters, c = alphanumeric characters; the exclamation mark fixes the exact length.
The block below is the route's own answer, produced by the same code that serves api.ibanforge.com, on the register as of the date shown. Nothing is edited.
{
"valid": true,
"country": {
"code": "FR",
"name": "France"
},
"bic": {
"code": "PSSTFRPPXXX",
"bic8": "PSSTFRPP",
"bank_name": "LA BANQUE POSTALE",
"city": "PARIS",
"source": "IBANforge curated bank-code map",
"as_of": "2026-09",
"basis": "curated_map",
"authoritative": false,
"lei": "96950066U5XAAIRCPA78"
},
"bank_code_check": {
"value": "20041",
"status": "verified",
"match": "register",
"register": "IBANforge composite bank-code map (assembled from BIC directories, not a national bank-code register)",
"authoritative": false,
"as_of": "2026-09"
},
"sepa": {
"member": true,
"schemes": [
"SCT",
"SDD",
"SCT_INST"
],
"vop_required": true,
"vop_participant": true,
"basis": "epc_register"
},
"issuer": {
"type": "bank",
"name": "LA BANQUE POSTALE",
"classification": "default"
},
"risk_indicators": {
"country_risk": "standard",
"sepa_reachable": true,
"vop_coverage": true,
"test_bic": false
}
}Choose a first step for your software or your supplier file.
Try a validation, inspect the response, then connect your application through the API or an existing integration.
Explore the API workflowUpload a CSV or Excel file and preview the findings for free. Purchase the annotated workbook if you need the full report. No account or subscription required.
Explore the file auditAvailable bank information varies by country and source. These checks do not confirm the account holder or guarantee that a payment will succeed.
Source: ISO 13616 registry for the length, layout and example; API answer captured on 2026-09-23.