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'**************************************
' Name: Credit Card Identification
' Description:Determines type of Credit Card by it's number.
' By: John Anderson
'
' Inputs:Card Number as String
'
' Returns:Card Type as String
'
' Assumes:This is based on documents from CyberCash's home page.
'
' Side Effects:Is not Year 2061 Compliant
'
'This code is copyrighted and has' limited warranties.Please see http://www.Planet-Source-Code.com/vb/scripts/ShowCode.asp?txtCodeId=903&lngWId=1'for details.'**************************************
Public Function CardType(CCNum As String) As String
Dim Header As String
Select Case Left$(CCNum, 1)
Case "5"
Header = Left$(CCNum, 2)
If Header >= 51 And Header <= 55 And Len(CCNum) = 16 Then
CardType = "MasterCard"
End If
Case "4"
If Len(CCNum) = 13 Or Len(CCNum) = 16 Then
CardType = "Visa"
End If
Case "3"
Header = Left$(CCNum, 3)
If Header >= 340 And Header <= 379 And Len(CCNum) = 15 Then
CardType = "AMEX"
End If
If Header >= 300 And Header <= 305 And Len(CCNum) = 14 Then
CardType = "Diners Club"
End If
If Header >= 360 And Header <= 369 And Len(CCNum) = 14 Then
CardType = "Diners Club"
End If
If Header >= 380 And Header <= 389 And Len(CCNum) = 14 Then
CardType = "Diners Club"
End If
If Header >= 300 And Header <= 399 And Len(CCNum) = 16 Then
CardType = "JCB"
End If
Case "6"
Header = Left$(CCNum, 4)
If Header = "6011" And Len(CCNum) = 16 Then
CardType = "Discover"
End If
Case "2"
Header = Left$(CCNum, 4)
If (Header = "2014" Or Header = "2149") And Len(CCNum) = 15 Then
CardType = "enRoute"
End If
If Header = "2131" And Len(CCNum) = 15 Then
CardType = "JCB"
End If
Case "1"
Header = Left$(CCNum, 4)
If Header = "1800" And Len(CCNum) = 15 Then
CardType = "JCB"
End If
End Select
If CardType = "" Then CardType = "Unknown"
End Function
Do you also have a code that also checks the card expiraton? coz' I got a code in jscript that has it, but I can't understand it. (If this comment was disrespectful, please report it.)
I've written many routines like this... for all of you wanting to know the date validation simply read in the date as a string by using a combination of instr(), mid(), left(), and right(). Use the Replace function to change char(s) when needed. (If this comment was disrespectful, please report it.)
Tim: Your answer to the date questions do not help at all, could you just post the date code too? thanks! (If this comment was disrespectful, please report it.)
(If this comment was disrespectful, please report it.)
6/23/2005 9:43:27 PM:
Can we identify in which Country the Card was issued?
Thanks, (If this comment was disrespectful, please report it.)
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4/14/1999 12:36:00 AM: 
