by generating and assigning a random 16-digit number associated with an already-existing credit card account. This offers a layer of security by protecting information directly linked to bank ...

If you use online banking, the account number is next to the account name. To find the account number through the mobile app, select the account. Navy Federal Credit Union account numbers are ...

So if you have multiple checking accounts (such as a personal and business accounts) they all have unique account numbers. Though a routing number is specific to your bank or credit union ...