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BIN 400789 – Visa Debit Card from Banco da Uniao

The first six digits 400789 identify a Visa Prepaid Classic debit card issued by Banco da Uniao (Guinea-Bissau). Below: card format, test numbers and related BINs.

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400789Visa Debit
Network
Visa
Type
Debit
Level
Prepaid Classic
Issuer
Banco da Uniao
Country
Guinea-Bissau GW
Card length
16 digits (13 and 19 also allowed)
Security code
3-digit CVV2 on the back
8-digit range
40078900–40078999

Generate test numbers with this BIN Open in BIN generator

Sample test numbers for BIN 400789 Test data

NumberExpiryCVVCopy
4007 8919 3646 801312/2029731
4007 8905 8305 219512/2029096
4007 8914 7127 201011/2030269

Luhn-valid numbers built from this BIN for testing forms and BIN rules. No bank issued them: they belong to no account and every real payment with them is declined.

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About BIN 400789

BIN 400789 is listed as a Visa Prepaid Classic debit card issued by Banco da Uniao in Guinea-Bissau. Debit cards draw money directly from the cardholder's bank account, so checkouts and gateways often treat them differently from credit cards (fees, holds, recurring billing). Prepaid products are loaded with funds in advance instead of drawing on a credit line; subscription and recurring-billing flows often handle them separately.

Banco da Uniao has fewer than ten BINs in our data, so it has no bank page; 2 BINs starting with 400 belong to it.

Guinea-Bissau has 16 BINs in the dataset; among the 16 that name an issuer, the main networks are Visa (94%), Mastercard (6%), and 100% are debit. See the Guinea-Bissau BIN list.

Visa number format for BIN 400789

Starts with400789 (the BIN). First digit 4: banking and financial
Length16 digits (13 and 19 also allowed)
Security code3-digit CVV2 on the back
Check digitThe last digit, calculated with the Luhn algorithm
Printed as4007 8919 3646 8013

A checkout that receives a number starting with 400789 should detect Visa, expect 16 digits and ask for a 3-digit security code. The generator creates as many numbers with this BIN as you need, with expiry dates and CVVs, as CSV, JSON or XML.

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Nearby BINs

The BINs closest to 400789 in our data. Neighbouring ranges often belong to the same bank, but not always — each range is assigned separately.

More BINs from Banco da Uniao

Frequently asked questions

Which bank issued BIN 400789?

BIN 400789 is registered to Banco da Uniao in Guinea-Bissau. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.

Is 400789 a debit or a credit card BIN?

It is recorded as debit, product level Prepaid Classic. Debit cards draw money directly from the cardholder's bank account, so checkouts and gateways often treat them differently from credit cards (fees, holds, recurring billing).

How many digits does a card with BIN 400789 have?

Visa card numbers have 16 digits (13 and 19 also allowed), and the security code is a 3-digit CVV2 on the back. The first six digits are the BIN, the last digit is the Luhn check digit, and the digits in between identify the account.

Can I generate test card numbers with BIN 400789?

Yes. Open the generator with this BIN to create Luhn-valid numbers with expiry dates and CVVs for testing forms, validation and BIN-based rules. They are test data: not issued by Banco da Uniao, linked to no account and declined by real payment systems.

Does a BIN tell me whether a card is valid?

No. A BIN describes a range of card numbers — network, issuer, country and product — not a particular card. Whether a card exists or can be charged is known only to the issuing bank. To check the format of a full number (length and check digit), use the card validator.

A BIN identifies the card network and the issuing institution only. It reveals nothing about an individual card, cardholder or account, and it cannot show whether a card exists or can be charged. Test numbers generated from a BIN are for development and QA only and are declined by every real payment system.

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BIN data: bin-list-data by Venelin Kochev (a lite version of binlookup.io), licensed under CC BY 4.0. Changes made by Fakecreditcard: issuer, brand and country names re-cased and standardized, spelling variants of the same issuer merged, malformed phone numbers and web addresses removed.

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