[Gllug] (OT) Resources for information on UK credit and debit cards

[Simon Perry]

Hi all,

Please excuse the off topic nature of this post but I remember some 
cracking discussions about credit and debit cards on this list in the 
past and my google fu has left me for today!

I want to implement a credit card validation routine on the order page 
of a website I'm working on that will weed out invalid cards before I do 
the actual call to secpay to handle the transaction. What I need to know 
is the prefix for switch, delta, solo, maestro cards, the valid lengths 
of their numbers and if they all conform to and require LUHN formula 
matching. So far I have found one published asp class that has regex for 
switch and delta but no authoritative information to confirm the 
validity of these or base my own on. Any pointers or links to online 
references gladly appreciated.

Simon
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