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
On 11/28/01, Jim McAtee penned:
Can anyone point me toward an authoritative source for the algorithms used
to validate credit card numbers and to identify card types based on the card
number? There are numerouse code examples to be found on the web, in
various languages (but with significant
Here's the deal:
it is a mod-10 formula... based on the length... so on some it is odd digit
math, others it is even...
3xxx - AMEX
4xxx - Visa
5xxx - MasterCard
6xxx - Discover
the formula is widely available and hasn't changed in 20 years.. it is 2nd
grade math
-p
-Original
Jim,
There are more than a few CF tags used for verifying that a card number
is valid. Search the tag gallery for that. As for identifying card
types, here's the key that I use:
Starts with... Type
3 Amex / Diner's Club
4
Actually, here's even more info...
*CARD TYPES*PREFIX *WIDTH
American Express 34, 3715
Diners Club300 to 305, 3614
Carte Blanche 3814
Discover 6011 16
EnRoute2014, 2149
On Wed, 28 Nov 2001 23:25:14 -0500, Paris Lundis
[EMAIL PROTECTED] wrote:
Here's the deal:
it is a mod-10 formula... based on the length... so on some it is odd digit
math, others it is even...
3xxx - AMEX
4xxx - Visa
5xxx - MasterCard
6xxx - Discover
the formula is widely available and
Kind of be littering don't you think?
-Original Message-
From: Paris Lundis [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, November 28, 2001 11:25 PM
To: CF-Talk
Subject: RE: Credit Card Validation
Here's the deal:
it is a mod-10 formula... based on the length... so on some it is odd
.
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
, 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
seem to know about it
being programatically/numerically related to the account... prove me wrong
:)
-Original Message-
From: Jim McAtee [mailto:[EMAIL PROTECTED]]
Sent: Thursday, November 29, 2001 00:03
To: CF-Talk
Subject: Re: Credit Card Validation
Lee,
Thanks. I've come across
Anyone ever heard of a credit card validation service (via the web)?
I would like to be able to verify if a credit card is valid before
passing the email along to billing.
I know I can validate the NUMBER, using mod10, but I would like to
pass some service the number, name on card, exp
There is authorized.net which I have
been reviewing and seem good.
-Original Message-
From: Ryan [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, October 25, 2000 3:56 PM
To: CF-Talk
Subject: OT: Credit card validation service?
Anyone ever heard of a credit card validation service (via the
You may want to look at www.Charge.com
They have a web based "console" that is in lieu of the hardwired terminals.
Just a thought
Steve
- Original Message -
From: "Ryan" [EMAIL PROTECTED]
To: "CF-Talk" [EMAIL PROTECTED]
Sent: Wednesday, October 25, 2000 12:55 PM
Subject: OT: Credit
If you wanted to use Javascript there is a Javascript validator at
http://www.dejeu.com/web/tools/tech/js/forms/form_chkcard-f.asp
--
Jamie Keane
Programmer
SolutionMasters, Inc.
9111 Monroe Rd., Suite 100
Charlotte, NC 28270
www.solutionmasters.com
704.563.5559 x 228 Voice
704.849.9291 Fax
Does anyone have an up to date credit card number validation
tag? I don't
need to verify funds or anything, I just have to see if the
credit card
(visa, mc, amex) is a potentially valid number.
Check out CFFORM, with CFINPUT set to do CC validation. In other words,
it's built-in to CF.
http://www.digitalmayhem.com/code.php?action=cfmodule=cccheck
Michael J. Sheldon
http://www.desertraven.com/
Make a fast friend, adopt a greyhound!
-Original Message-
From: Kiley Simpson [mailto:[EMAIL PROTECTED]]
Sent: Thursday, August 17, 2000 09:56
To: [EMAIL PROTECTED]
Subject:
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