A routing number belongs to a specific bank or credit union, and you can find out which one by looking it up online or calling the number on the back of your debit card.
Every bank and credit union in the United States has a unique routing number — a nine-digit code that identifies where your account lives. When you see a routing number, it tells you which financial institution processes transfers for that account. The routing number itself does not tell you the bank's name, but the bank's name will tell you the routing number, and you can reverse that lookup too.
The fastest way to find out which bank owns a routing number is to use the Federal Reserve's routing number search tool or a third-party lookup site. You enter the nine digits, and the tool returns the bank name, address, and sometimes the branch. If you already have an account at a bank and want to know its routing number, check your checks, your online banking portal, or call the bank directly.
Key Takeaways
- The Federal Reserve maintains the official list of all U.S. routing numbers and the banks they belong to, and you can search it for free online.
- Your own bank's routing number appears on the bottom left of your paper checks, in your online banking dashboard, or by calling customer service.
- A routing number identifies the bank or credit union, while your account number identifies your specific account within that bank.
- If you receive a routing number from someone else, you can verify which bank it belongs to before sending money or setting up a transfer.
How to look up a routing number and find the bank
The Federal Reserve's routing number lookup is the official source. Go to the Federal Reserve's website, find the routing number search tool, enter the nine-digit number, and it will return the bank name and address. This tool is free and does not require you to log in or provide any personal information.
If you prefer not to use a government website, several banks and financial services sites host their own routing number databases. You can search by bank name or by routing number. These third-party tools pull data from the same Federal Reserve database, so the results are the same.
If someone gives you a routing number and you want to verify it before sending money, the lookup tool is the safest step. It confirms the number is real and tells you exactly which institution it belongs to.
Where to find your own bank's routing number
If you have a checking account, the easiest place to find your routing number is on a paper check. Look at the bottom left corner — the first nine digits are your bank's routing number. The next set of digits is your account number.
If you do not have checks or prefer not to use them, log into your online banking account. Most banks display the routing number in the account details or transfer settings section. Some banks call it the "ABA number" or "transit number" — these are the same thing.
You can also call your bank's customer service line, usually found on the back of your debit card or on your monthly statement. A representative can tell you the routing number in under a minute.
Routing numbers for different types of transfers
Most banks have one routing number for all domestic transfers — wire transfers, ACH transfers, and direct deposits all use the same nine-digit code. However, some large banks maintain separate routing numbers for different regions or for wire transfers specifically.
If you are setting up a wire transfer, ask your bank whether the routing number is the same as the one on your checks. For ACH transfers (like direct deposit or bill pay), the routing number on your checks is almost always correct. If you are unsure, the bank's website or a customer service call will clarify which number to use.
The difference between routing number and account number
A routing number identifies the bank. An account number identifies your specific account within that bank. Together, they tell the financial system exactly where to send money.
On a check, the routing number is the first nine digits at the bottom left. The account number follows immediately after. When you set up direct deposit or authorize an ACH transfer, you will need both numbers. The routing number tells the system which bank to contact; the account number tells the bank which account to deposit into.
What to do if a routing number does not match a bank
If you look up a routing number and the search tool returns no results or an error, the number may be incorrect or outdated. Routing numbers do not change often, but banks occasionally merge or reorganize, which can affect routing numbers.
If someone gave you the routing number and it is not coming up in the search, ask them to double-check it. If you are trying to find your own bank's routing number and the lookup is not working, call your bank directly — they can confirm the correct number and tell you if there have been any recent changes.
Frequently Asked Questions
Can I use any routing number to send money to someone at the same bank?
No. You need the correct routing number for the branch or region where the recipient's account is held. If you use the wrong routing number, the transfer may be rejected or delayed. Always verify the routing number with the recipient or look it up using the Federal Reserve tool before sending money.
Do credit unions have routing numbers?
Yes. Credit unions have routing numbers just like banks do. You can find a credit union's routing number the same way — on checks, in online banking, or by calling the credit union. The Federal Reserve lookup tool includes credit unions as well.
What if I send money to the wrong routing number?
If the routing number does not exist, the transfer will usually be rejected and the money returned to your account within a few business days. If the routing number is real but belongs to a different bank, the money may be sent to that bank, and you will need to contact both banks to recover it. This is why verifying the routing number before sending is important.
Is the routing number the same on all my checks?
Yes. Every check from the same account at the same bank will have the same routing number. If you have multiple accounts at the same bank, they may have different routing numbers depending on the account type or branch.
Can someone use my routing number to steal money from my account?
A routing number alone is not enough to access your account. Someone would also need your account number and other information. However, do not share your full banking details with people you do not trust. If you are concerned about fraud, contact your bank immediately.