Although they vary in length, checking account numbers are usually between eight and twelve digits long. This number identifies your personal account. You can find your checking account number by looking at one of your personal checks. It will be the second (middle) set of numbers on the bottom of every check. You can also find your account number through online and mobile banking.
You can customize your debit or credit cards with a second line. Have a favorite nickname, sports team or just something fun you want to include?