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BIN 503734 – Maestro Debit Card from First National

503734 is the BIN of a Maestro debit card from First National, registered in the United Kingdom. Below: card format, test numbers and related BINs.

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503734Maestro Debit
Network
Maestro
Type
Debit
Level
–
Issuer
First National
Country
United Kingdom GB
Card length
12 to 19 digits
Security code
3-digit code (not on every card)
8-digit range
50373400–50373499

Generate test numbers with this BIN Open in BIN generator

Sample test numbers for BIN 503734 Test data

NumberExpiryCVVCopy
5037 3493 0707 878908/2027356
5037 3403 2610 811108/2029830
5037 3402 8553 500706/2028390

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 503734

BIN 503734 is listed as a Maestro debit card issued by First National in the United Kingdom. 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).

First National has fewer than ten BINs in our data, so it has no bank page.

The United Kingdom has 7,554 BINs in the dataset; among the 5,192 that name an issuer, the main networks are Visa (36%), Mastercard (32%), American Express (10%), and 54% are debit. See the United Kingdom BIN list or the United Kingdom card generator.

Maestro number format for BIN 503734

Starts with503734 (the BIN). First digit 5: banking and financial
Length12 to 19 digits
Security code3-digit code (not on every card)
Check digitThe last digit, calculated with the Luhn algorithm
Printed as5037 3493 0707 8789

A checkout that receives a number starting with 503734 should detect Maestro, 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 503734 in our data. Neighbouring ranges often belong to the same bank, but not always — each range is assigned separately.

Frequently asked questions

Which bank issued BIN 503734?

BIN 503734 is registered to First National in the United Kingdom. Bank details can change after mergers or portfolio sales, so confirm with the bank for anything important.

Is 503734 a debit or a credit card BIN?

It is recorded as debit. 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 503734 have?

Maestro card numbers have 12 to 19 digits, and the security code is a 3-digit code (not on every card). 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 503734?

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 First National, 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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