Gabon IBAN validator
How the IBAN format works
- Format
- GA + 2 check digits + 25 digits (27 chars) — used in practice, not in the official SWIFT IBAN registry
- Example
- GA5300000000000000000100013
Things to watch for
- Gabon is not in the official SWIFT IBAN registry — this 27-character format is used in practice by Gabonese banks, not formally standardized by SWIFT/ECBS
- Gabon shares its central bank, BEAC, and the Central African CFA franc (XAF) with 5 other Central 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 Gabonese bank
^GA[0-9]{25}$A Gabonese IBAN-style account number is 27 characters: “GA”, two check digits, then 25 digits with no letters anywhere — for example GA5300000000000000000100013. Gabon is not in the official SWIFT/ECBS IBAN registry, but as an oil-exporting member of the Central African monetary union it shares its central bank, BEAC (Banque des États de l’Afrique Centrale), and the Central African CFA franc (XAF) with five neighbors — Cameroon, Central African Republic, Chad, Congo-Brazzaville, and Equatorial Guinea, two of which (Congo-Brazzaville and Equatorial Guinea) border it directly.
Among the six BEAC-zone countries, Gabon has one of the region’s higher per-capita incomes thanks to petroleum exports, but that economic difference has no bearing on its account-number format — every BEAC member uses the identical 27-character, fully numeric shape.
How this validator works
This tool checks the “GA” prefix, confirms exactly 25 digits follow the two check digits, and runs the mod-97 checksum (ISO 7064) the number must satisfy. Everything runs client-side, with nothing sent to a server.
What a pass doesn’t tell you
A pass confirms the 27 characters are internally consistent — not that the account is open or that Gabon has formal SWIFT IBAN registration. This tool performs no lookup against BEAC or any Gabonese 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 Gabon an official SWIFT IBAN registry country?
No. Gabon is not in the official SWIFT/ECBS IBAN registry. Gabonese banks, under the regional central bank BEAC, use a 27-character, all-numeric IBAN-shaped account number that satisfies the mod-97 checksum without formal SWIFT backing.
What does a Gabonese IBAN-style number look like?
27 characters: 'GA', two check digits, then 25 digits and no letters — for example GA5300000000000000000100013.
Does a valid checksum mean the account is real?
No. It confirms the 27 characters are mathematically consistent under mod-97, entirely client-side. Confirming the account itself requires the account-holder's bank or BEAC, neither of which this tool queries.