Question

I’m trying to set the credit card numbers based on the standard check parameters but I am finding lots of UK cards (Maestro / Visa Debit / Barclaycard Connect) have start numbers that don’t meet other card validation script regexes;

I.e Maestro (Switch) cards are still around and start with a 4, using a lot of the regexes online this would cause Visa Credit card to be selected.

Does anyone know of a resource where these registered start codes are stored?

Ta

Anyone Looking for a UK Credit Card Validation Table (BIN TABLE)

http://www.barclaycard.co.uk/business/documents/pdfs/bin_rules.pdf

Answer 1

Here are the rules regarding credit card formatting and validation.

Note: Switch cards are actually debit not credit cards so have different validation rules. In fact Switch cards normally have the account number embedded in the number. There’s probably a checksum algorithm for this but I haven’t seen it (yet).