Senegal IBAN validator
How the IBAN format works
- Format
- SN + 2 check digits + 2-letter code + 22 digits (28 chars) — used in practice, not in the official SWIFT IBAN registry
- Example
- SN21SN0000000000000000100021
Things to watch for
- Senegal is not in the official SWIFT IBAN registry — this 28-character format is used in practice by Senegalese banks, not formally standardized by SWIFT/ECBS
- Senegal shares its central bank, BCEAO, and the West African CFA franc (XOF) with 7 other West African countries — none of which are in the official SWIFT registry either
- Checks format and checksum only — does not confirm the account exists or is held at a real Senegalese bank
^SN[0-9]{2}[A-Z]{2}[0-9]{22}$A Senegalese IBAN-style account number is 28 characters: “SN”, two check digits, a 2-letter code, then 22 digits — for example SN21SN0000000000000000100021. Senegal, home to the regional headquarters of the central bank BCEAO (Banque Centrale des États de l’Afrique de l’Ouest) in Dakar, is not itself in the official SWIFT/ECBS IBAN registry, even though it hosts the very institution that regulates banking across all eight BCEAO-zone countries and the West African CFA franc (XOF) they share.
Senegal’s format places it in the letters-only subgroup of that bloc, alongside Côte d’Ivoire, Niger, and Togo, where the 2-character block right after the check digits always uses letters rather than digits — one of the details that separates these four from Benin, Burkina Faso, Mali, and Guinea-Bissau’s more flexible alphanumeric block.
How this validator works
This tool checks the “SN” prefix, confirms 2 letters precede exactly 22 digits, and runs the mod-97 checksum (ISO 7064) the number must satisfy — entirely in your browser, with nothing sent to a server.
What a pass doesn’t tell you
A pass confirms the 28 characters are internally consistent — not that the account is open or that Senegal has formal SWIFT IBAN registration. This tool performs no lookup against BCEAO or any Senegalese bank.
Scope: format and mod-97 checksum validation only, for a locally used but non-SWIFT-registered format — not payment processing or account confirmation.
Content last reviewed 2026-08-10.
IBAN FAQ
Is Senegal an official SWIFT IBAN registry country?
No. Senegal is not in the official SWIFT/ECBS IBAN registry. Senegalese banks, under the regional central bank BCEAO, use a 28-character IBAN-shaped account number that satisfies the mod-97 checksum without formal SWIFT backing.
What does a Senegalese IBAN-style number look like?
28 characters: 'SN', two check digits, a 2-letter code, and 22 digits — for example SN21SN0000000000000000100021.
Does this tool confirm the account is real?
No. It checks structure and the mod-97 checksum only, entirely client-side. Confirming an account requires the account-holder's own bank, which this tool doesn't contact.