From: Raj Sahae <rajsahae@...>
Date: 2007-04-28T12:39:44+09:00
Subject: Re: [QUIZ] Checking Credit Cards (#122)

Tim Becker wrote:
>> For completeness and to make this Quiz exercise valid to more people,
>> can anyone include the information for other major credit cards from
>> major countries? Japan: JCB,  et. al., U.K.: Barclay, et. al. , etc...
>
> UK had Switch and Solo till recently which are now rebranded under the
> Maestro umbrella. They're not really credit cards and basically no
> rules exist, you have to check tables to determine valid prefixes and
> card number length. Additionally, Maestro card numbers may also be
> Mastercard numbers, so they can't be uniquely identified as being
> Maestro.
>
> For JCB and Diner's:
>
> JCB       3528-2589  Length: 16
> Diners   3000-3029, 3040-3059, 36, 3815-3889, 389 Length: 14
>
There's no way to differentiate between a JCB starting with 34 and an 
American Express card that starts with 34 given those starting numbers.

Raj