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Check credit card numbers. Validate your credit card number and find out which bank a card number belongs to.

Visa USA has information on Visa credit and debit cards, including Visa Classic, Visa Secured, Visa Gold, Visa Platinum, Visa Signature, and Visa Check cards. Find the Visa card that

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Online tools for developers, including formatters (JSON, XML, HTML, SQL, etc.), minifiers (JavaScript, CSS), validators, compactors and many more!

Experian Official Site - Check your credit report and credit score, as well as obtain business credit reports and other marketing solutions.

At Regular-Expressions.info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions.

Braintree is a smarter way to accept credit cards online. Start using our easy to implement payment gateway today

MasterCard Worldwide manages a family of well-known, widely accepted payment cards brands including MasterCard , Maestro and Cirrus and serves financial institutions, consumers, and businesses in over 210 countries and territories worldwide.

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Start here to bank and pay bills online. Wells Fargo provides personal banking, investing services, small business, and commercial banking.