What is Cash App Routing Number and How to find it? The Cash App is not a bank, but it still has a sort code. Do you know why? This is because the Cash app is supported by Sutton Bank and Lincoln Savings Bank. Therefore, the Cash App routing number, like all other sort codes, contains 9 digits. The first three digits represent the name of the bank and the other digits indicate the location of the bank. You can find out which sort of code is linked to your Cash App account in your Cash App mobile app. Next to the Cash App sort code, you will find your Cash App account number. Visit for more info: https://squarecashelp.com/blog/cash-app-routing-number