Your routing number belongs to the specific bank or credit union where you hold the account
A routing number identifies the financial institution that holds your account, not a network or payment system. When you see a nine-digit routing number on a check or in your bank's system, those digits point to one particular bank, credit union, or other depository institution. The Federal Reserve assigns routing numbers to each institution, and no two institutions share the same number.
The routing number does not tell you which branch you use or which state you live in. It tells the payment system which institution to send money to. If you have accounts at two different banks, each account has a different routing number—even if both banks have branches on the same street.
You can find your routing number on the bottom left of any check you have from that account, in your bank's mobile app, on your bank's website under account details, or by calling the bank directly. The number stays the same whether you move, change branches, or update your account type.
Key Takeaways
- A routing number identifies a single bank or credit union, assigned by the Federal Reserve.
- Each account you hold at a different institution has its own routing number.
- The routing number does not change if you move, switch branches, or modify your account.
- You can find your routing number on a check, in your bank's app, or by contacting the bank.
- The routing number tells the payment system where to send money, not which branch or region you use.
How the Federal Reserve assigns routing numbers
The Federal Reserve maintains a database of all active routing numbers and the institutions they belong to. When a bank or credit union opens, the Federal Reserve assigns it a unique nine-digit routing number. That number stays with the institution for as long as it operates, even if the bank changes its name, merges with another bank, or opens new branches.
If a bank is acquired by another bank, the routing number may change or may be retired. The acquiring bank typically assigns its own routing number to the accounts it takes over. This is why a routing number can disappear from use—the institution no longer exists as a separate entity.
Where to find the routing number for your specific bank
The fastest way to find your routing number is to look at a check from your account. The nine-digit number on the bottom left of the check, before your account number, is your routing number. This works for any bank or credit union that issues checks.
If you do not have a check, log into your bank's website or mobile app and look for account details, account information, or settings. Most banks display the routing number alongside your account number. Some banks label it "ABA number" (ABA stands for American Bankers Association, the organization that originally managed routing numbers).
You can also call your bank's customer service line and ask for your routing number. Have your account number ready, and the representative will give it to you when ready. If you are setting up a direct deposit or wire transfer and need the routing number, the bank's website usually has a dedicated page listing it.
Routing numbers for different account types at the same bank
Most banks use the same routing number for all account types—checking, savings, money market, and so on. The routing number identifies the bank; the account number identifies which specific account within that bank you are using. When you set up a direct deposit or transfer, you provide both the routing number and the account number so the payment system knows exactly where to send the money.
Some large banks or credit unions may have multiple routing numbers if they operate different divisions or acquired other institutions. For example, a bank that merged with another bank might keep both routing numbers active for a period of time to avoid disrupting existing payments. If you are unsure whether your account uses the routing number you found, confirm it with your bank before setting up a transfer.
What happens if you use the wrong routing number
If you provide the wrong routing number for a transfer or direct deposit, the payment will either be rejected or sent to the wrong bank. The sending bank's system will try to match the routing number to an institution in the Federal Reserve's database. If the number does not exist or belongs to a different bank, the transfer usually fails and the money returns to the sender within one to three business days.
If the wrong routing number happens to belong to a real bank, the payment may go to that bank instead of yours. This is rare but possible. The receiving bank will see that the account number does not match any account in their system and will return the money to the sender. The process takes longer—typically five to ten business days—because the money has to be traced back through the payment system.
To avoid this, always double-check the routing number before you submit a transfer or direct deposit form. Confirm it matches the bank where you actually hold the account.
Routing numbers for wire transfers versus ACH transfers
Most banks use the same routing number for both wire transfers and ACH transfers (the system used for direct deposits and bill payments). However, some banks maintain separate routing numbers for wire transfers and ACH transfers. This is less common, but it happens.
If you are setting up a wire transfer, ask your bank whether the routing number for wire transfers is different from the one you use for ACH transfers. The bank's website or customer service can tell you when ready. Using the wrong routing number for a wire transfer can cause the payment to be rejected or delayed, since wire transfers are processed through a different system than ACH payments.
Frequently Asked Questions
Can two banks share the same routing number?
No. The Federal Reserve assigns a unique routing number to each bank or credit union. No two institutions have the same routing number. If two institutions merged, one routing number would be retired and accounts would be moved to the surviving institution's routing number.
Does my routing number change if I move to a different state?
No. Your routing number is tied to the bank or credit union itself, not to your location or the branch you use. You can move across the country and your routing number stays the same because it still identifies the same institution.
What if my bank was acquired by another bank?
Your routing number may change. When one bank acquires another, the acquiring bank typically assigns its own routing number to the accounts it takes over. Your bank will notify you of the change and provide your new routing number. Any direct deposits or automatic payments you have set up will need to be updated with the new routing number.
Is the routing number the same as the SWIFT code?
No. A routing number is used for domestic transfers within the United States. A SWIFT code is used for international wire transfers. If you are sending money to another country, you will need the recipient's SWIFT code, not a routing number.
Can I find someone else's routing number if I know their bank?
Yes. Routing numbers are public information. If you know which bank someone uses, you can find that bank's routing number on the bank's website, on a check, or through the Federal Reserve's routing number database. However, you still need the person's account number to send them money, and that is private information only they should share.