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If someone has asked you for your bank's "routing number" and you didn't know where to look, you're not alone. For those of us from Latin America, this code has no direct equivalent in most countries in the region, and its English name doesn't help clarify what it's for.
The routing number is a 9-digit code that identifies your bank within the United States financial system. It is not your account number: it identifies the institution, not you. Without it, no electronic transfer can reach the correct destination.
What a bank routing number is and why it exists
The bank routing number is an identifier assigned by the American Bankers Association (ABA) to every financial institution operating in the U.S. That is why it is also known as an ABA number or ABA routing code. You can read more about this term in the article on the ABA code.
Its function is simple: when you make or receive an electronic transfer within the U.S., the system needs to know which bank to direct the funds to. The routing number is the bank's address, just as a zip code identifies a geographic area.
Each bank has at least one 9-digit routing number. Large banks may have several, depending on the state or the type of operation. What never changes is the format: always 9 digits, always unique per institution.
The routing number identifies the bank, not your personal account. If you share your routing number with someone, you are only telling them which bank your account is at, not who you are or how much money you have. To complete a transfer, both the routing number and the account number are always required.
How to find your U.S. bank's routing number
There are three ways to find it, and in most cases, you don't need to call the bank:
On a physical check: the routing number is the first 9 digits that appear in the bottom left corner of the check. They are printed in special magnetic ink. The next block of numbers is your account number, and the last one is the check number itself.
In your bank's app or online banking: most U.S. banks display the routing number directly in the account details section within the mobile app or on the website portal. Look for "account details," "routing number," or "wire instructions."
On the bank's official website: almost all banks publish their routing numbers on their official site, usually in the help or frequently asked questions section. If you search online, make sure to go directly to the bank's official domain to avoid outdated information from third parties.
The difference between the ACH routing number and the routing number for wire transfers
Here is the part that confuses many people: some banks have two different routing numbers depending on the type of operation.
ACH routing number: used for domestic electronic transfers processed through the ACH (Automated Clearing House) network, such as payroll payments, automatic bill payments, or transfers between your own accounts. ACH transfers usually take 1 to 3 business days and have low or no costs.
Routing number for wire transfer: used for direct and immediate bank transfers, both domestic and international. A wire transfer is faster (usually the same day), but it has a higher cost and requires additional data, such as the SWIFT code when the destination is international.
If a bank has different routing numbers for ACH and wire, using the wrong one can delay or bounce your transfer. To know which one applies to your case, check directly in the "wire instructions" section of your bank's official website. Do not use routing numbers from third-party sources: banks update this information and outdated data circulates on the internet for years.
When do you need your bank routing number and when does Félix do it for you?
You will need to have your routing number handy in situations like these:
- Receive payroll payments via direct deposit
- Pay utility bills, rent, or loans through automatic debit
- Receive IRS tax refunds directly into your account
- Make domestic bank transfers to another financial institution
- Receive international payments that require U.S. bank details
For this last case, if someone in another country wants to send money directly to your Bank account in the U.S., you will need to provide your routing number, your account number, and often your bank's SWIFT code. You can see how that process works in the article on International bank transfer.
If you use Félix Pago to send remittances to Latin America, you do not need your bank's routing number: Félix accepts payment with a U.S.-issued debit or credit card, as well as cash at participating stores. The process does not involve ACH or wire transfers from your account. The routing number is only relevant when you pay or receive money directly between U.S. bank accounts.
If your relative abroad needs information on how to receive an International bank transfer, that article covers the details the receiving bank may request.
Frequently asked questions
Is the bank routing number the same as the account number?
No. The routing number identifies the bank as an institution (it is the same for all customers of that bank in that region). The account number identifies you as a specific customer. To make or receive a transfer, both pieces of information are always needed together.
Can I find my routing number without having checks?
Yes. The most direct way is through your bank's app or online portal, in the account details section. You can also find it on the bank's official website. You do not need to have a checkbook to access this information.
Do all banks in the U.S. have a single routing number?
Not necessarily. Larger banks may have different routing numbers by state and by type of operation (ACH vs. wire). Always check your bank's official website to see which one applies to the operation you need to perform.
Can I give my routing number to someone without risk?
The routing number alone does not allow charges to be made to your account. It identifies the bank, not your personal account. However, sharing both the routing number and the account number does enable third parties to make automatic debits, so only provide both pieces of information to trusted people or entities.
Is the routing number used to send remittances abroad with Félix?
No. Félix Pago does not use ACH or wire transfers as a payment method for the sender. To send money with Félix, you use your debit or credit card, or pay in cash at a participating store from your phone via WhatsApp.
Related content
- Complete guide: how to send money abroad
- ABA Code: what it is and what it is used for
- ACH transfers: what they are and how they differ from bank transfers
- Wire transfer vs. international bank transfer: what is the difference
- How to make a bank transfer from the U.S. to Mexico
- Glossary: Bank account
- Glossary: International bank transfer
