Look up a routing number using the Federal Reserve's official database
The Federal Reserve maintains a public routing number database that you can search for free. Go to frbservices.org, click on "Routing Number Lookup," and enter the nine-digit routing number. The database will return the bank name, city, state, and the Federal Reserve district that serves it.
This is the most reliable source because the Federal Reserve issues and tracks every routing number in the United States. The lookup takes seconds and requires only the routing number itself — you do not need to know anything else about the account or bank.
If the Federal Reserve database does not return a result, the routing number may be invalid, inactive, or belong to a credit union or other institution outside the Federal Reserve system.
Key Takeaways
- The Federal Reserve's routing number lookup at frbservices.org is the official source and works for any U.S. bank routing number.
- A routing number lookup returns only the bank name and location — it does not reveal account details or balances.
- Credit unions and some smaller institutions may not appear in the Federal Reserve database; you may need to contact the institution directly.
- If you received a check or wire transfer, the routing number on it belongs to the bank that holds the account the money came from, not your own bank.
What the routing number tells you and what it does not
A routing number identifies the financial institution that holds the account, not the account holder or the account type. When you look up a routing number, you learn which bank it belongs to and where that bank's main office is located. You do not learn whose account it is, how much money is in it, or what type of account it is.
If you are trying to figure out where someone sent you money from, the routing number tells you the bank but not the person. If you are verifying that a routing number is real before you send money to it, the lookup confirms the bank exists and is active.
Why you might need to identify a routing number
You may need to look up a routing number if you received a check and want to know which bank it is drawn on, or if someone gave you a routing number for a wire transfer and you want to verify it is legitimate before sending money.
Scammers sometimes provide fake routing numbers or routing numbers belonging to real banks but with incorrect account numbers, hoping you will not notice. Looking up the routing number confirms the bank is real, but you should always verify the account number separately with the person or organization you are sending money to — call them directly using a phone number you find yourself, not one they provided.
What to do if the routing number does not appear in the Federal Reserve database
If the Federal Reserve lookup returns no result, the routing number may belong to a credit union, a very small bank, or an inactive institution. Credit unions have their own routing number system and do not always appear in the Federal Reserve database.
Contact the institution directly using a phone number or website you find yourself — do not use contact information provided by the person who gave you the routing number. Ask them to confirm the routing number and account number for the transfer you are about to make. If they cannot confirm it, do not send money.
How routing numbers are structured
All U.S. routing numbers are exactly nine digits. The first four digits identify the Federal Reserve district and the bank's location. The next four digits identify the specific bank branch or processing center. The last digit is a check digit that confirms the routing number is valid.
You cannot determine which bank a routing number belongs to just by looking at the digits — you need to search the Federal Reserve database. A routing number that looks plausible (nine digits, correct check digit) may still be inactive or belong to a bank that no longer exists.
Where to find a routing number if you need one
If you need to provide your own routing number to someone else, you can find it on the bottom left of your checks, in your bank's mobile app or website (usually under account details or settings), or by calling your bank's customer service line.
Do not share your routing number with anyone you do not trust. Your routing number alone cannot be used to withdraw money from your account — a thief would also need your account number — but it is still sensitive information. If someone asks for your routing number, verify they are actually from your bank or a legitimate organization before you provide it.
Frequently Asked Questions
Can someone steal money from my account if they have my routing number?
No, not with the routing number alone. A thief needs both your routing number and your account number to set up a transfer or unauthorized payment. If you accidentally share only your routing number, your account is not at immediate risk, but you should still monitor it for unusual activity.
Why do different banks sometimes have the same routing number?
They do not. Each routing number is unique to one institution. However, a single large bank may have multiple routing numbers for different branches or processing centers. If you look up two different routing numbers and they both return the same bank name, they likely serve different locations or departments within that bank.
Is the Federal Reserve lookup the only way to identify a routing number?
It is the most reliable way. Some banks publish their routing numbers on their websites, and you can call a bank directly to ask. Third-party websites also offer routing number lookups, but they pull data from the Federal Reserve database anyway, so going directly to the source is faster and more trustworthy.
What if I need to look up a routing number for a bank that closed?
The Federal Reserve database may still show it as inactive. If you need to know which bank currently holds the account (because the original bank merged or was acquired), contact the FDIC at fdic.gov or call 1-877-ASK-FDIC. They can tell you where your account was transferred.
Can I look up a routing number without knowing the bank name?
Yes. The Federal Reserve lookup requires only the nine-digit routing number. You do not need to know the bank name, account holder, or anything else. Enter the number and the database returns the bank information.