Because routing numbers vary based on individual branch locations, you should look up the routing number on your check or contact Citizens Bank at 1-877-360-2472.
Routing numbers are nine-digit numbers located on the bottom of checks. They are sometimes referred to as routing transit numbers and are used to identify individual banks for fund transfers. The American Bankers Association (ABA) provides every bank in the USA with a routing number.
The first four digits of the number shows where your bank is located geographically, based on which Federal Reserve Bank it is affiliated with. The next set of four digits identifies the branch of your financial institution. The final digit is a safety check that helps reduce errors.