Agreed. But not sure you're going to find it. And not sure you'll find
anything that will cover all future possibilities. But if you do..
Don't hesitate to share with all of us! ;)
Lee
> -----Original Message-----
> From: Jim McAtee [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, November 28, 2001 9:03 PM
> To: CF-Talk
> Subject: Re: Credit Card Validation
>
>
> Lee,
>
> Thanks. I've come across similar tables. Trouble is each of
> them contains one or two more prefixes than the last one.
> For example, I've also seen the prefix 38 listed for Diners
> Club. Obviously prefixes are being added, albeit slowly, as
> needed. If I'd relied on the first table I came across,
> published maybe two or three years ago (Who knows when - it
> was on some developer's website without a date), then I might
> be rejecting cards that were issued in the last couple of years.
>
> I've got the Luhn mod-10 checksum algorithm implemented in
> both JavaScript and CFScript. I've also come across mention
> of a "check digit" (rightmost
> digit) and another algorithm to do a checksum against this
> digit. Perhaps it's just an alternative way of doing the
> mod-10 checksum. I haven't examined it that closely.
>
> What I'm really looking for is a more authoritative source
> for this information.
>
> Jim
>
>
> ----- Original Message -----
> From: "Lee Fuller" <[EMAIL PROTECTED]>
> To: "CF-Talk" <[EMAIL PROTECTED]>
> Sent: Wednesday, November 28, 2001 9:35 PM
> Subject: RE: Credit Card Validation
>
>
> > Actually, here's even more info...
> >
> >
> >
> > *CARD TYPES *PREFIX *WIDTH
> > American Express 34, 37 15
> > Diners Club 300 to 305, 36 14
> > Carte Blanche 38 14
> > Discover 6011 16
> > EnRoute 2014, 2149 15
> > JCB 3 16
> > JCB 2131, 1800 15
> > Master Card 51 to 55 16
> > Visa 4 13, 16
> >
>
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