That depends on what ID card you have.
Credit card ID numbers have three (Discover, Visa, MasterCard) or four (American Express) digits.
there are nine digits in a tax id number
there are nine digits in a tax id number
there are nine digits in a tax id number
there are 16 digits on a visa card
California inmate ID numbers contain six digits.
An employee ID number typically has between 4 to 8 digits.
Amex card has 15 digits.
10
16 digits.
An American Express card has 15 digits.
An American Express card has 15 digits.