A routing number is a unique nine-digit code that identifies a particular financial institution. It is used to facilitate the electronic transfer of funds between banks and other financial institutions. For instance, if you are setting up an automatic bill payment or direct deposit, you will need to provide the routing number for your bank.
Routing numbers are essential for ensuring the smooth and accurate transfer of funds. They help to prevent errors and fraud by ensuring that the money is sent to the correct destination. Routing numbers have been used in the United States since the early 1900s and have evolved over time to accommodate the increasing volume and complexity of electronic financial transactions.