Q:

Credit Card Validation Resource for UK merchant

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 

A:

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).