The section on ABA routing numbers is further down the page.
The above verification (LUHN / mod-10) procedure works for Visa cards (both 13 and 16 digit versions), Master Card (16 digit), American Express (15 digits), Discover (16 digits), Sears, J.L. Hudson, a number of bank's savings and checking account numbers, and some credit union draft accounts. I have not checked it for Diner's Club nor Carte Blanc. Please do NOT send me your account number, but do let me know by e-mail of any account types that do or do not work so that I may list them here for others to use. Thank you. I have heard that it also works for Canadian Social Insurance Numbers.
I found the following information at the home page of Harrell W. Stiles that will further help you verify credit card numbers:
| Card Type | Length | Prefix |
|---|---|---|
| MasterCard | 16 | 51-55 |
| Visa | 13, 16 | 4 |
| American Express | 15 | 34, 37 |
| Diners Club Carte Blanche |
14 | 300-305 36, 38 |
| Discover | 16 | 6011 |
| enRoute | 15 | 2014, 2149 |
| JCB | 16 | 3 |
| JCB | 15 | 2131, 1800 |
Read more about the routing number at the American Banker's Association site.
You will find information on ISBN and Bookland EAN codes at the Book Industry Study Group.
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