Quick answer: A routing number is a 9-digit code used to identify a bank or credit union for ACH transfers, direct deposit, wire transfers, check processing, and bill payments. Use this routing number directory to find the correct routing number for your bank or credit union.
The Online Banking Help routing number directory is designed to help you quickly find accurate routing numbers for major U.S. banks and credit unions. Whether you are setting up direct deposit, linking accounts, sending money, or verifying account information, using the correct routing number helps prevent delays, rejected payments, and processing issues.
This page serves as a central hub for routing number guides across major financial institutions, including state-based routing number pages, transfer-specific information, and instructions for finding the right routing number for your situation.
Find Routing Numbers by State, Bank, or Transfer Type
Routing numbers are not always the same across every transaction. Some banks use different routing numbers depending on the state where the account was opened, while others use separate routing numbers for ACH transfers, domestic wire transfers, or other payment systems.
If you are trying to find the right routing number, it is important to confirm all three details:
- The name of the bank or credit union
- The state associated with the account, if applicable
- The type of transfer or payment you are making
This directory helps you find routing numbers by institution and explains when state-specific or transfer-specific routing details matter.
Browse Routing Numbers by Bank
Use the guides below to find routing numbers for major U.S. banks. Each page includes ACH routing numbers, wire transfer details, and guidance on confirming the correct routing number for your account.
- Chase routing number by state
- Bank of America routing number by state
- Wells Fargo routing number guide
- PNC routing number lookup
- U.S. Bank routing number information
- Capital One routing number details
Browse Routing Numbers by Credit Union
Credit unions also use routing numbers for electronic transfers, direct deposit, check processing, and payment setup. Use the guides below to confirm the correct routing number for your credit union account.
- Navy Federal routing number
- PenFed routing number
- Alliant Credit Union routing number
- BECU routing number
- SchoolsFirst routing number
- Golden 1 Credit Union routing number
What a Routing Number Is and How It Works
A routing number is a unique 9-digit identifier assigned to banks and credit unions in the United States. It is used to ensure funds are directed to the correct financial institution for electronic payments and banking transactions.
Routing numbers are assigned through the U.S. banking system and are used in a wide range of payment and transfer processes. They help financial institutions identify where a transaction should be sent and how it should be processed.
- Direct deposit setup
- ACH transfers between bank accounts
- Wire transfers
- Online bill payments
- Check processing
If you want a deeper look at how these systems work, review our guides on how ACH transfers work and why online banking is not instant.
How to Find Your Routing Number
You can usually find your routing number in several places, depending on your bank or credit union:
- Printed on the bottom left corner of a paper check
- Inside your online banking dashboard
- Within your mobile banking app
- On official direct deposit or account verification forms
- On your bank or credit union’s routing number page
If your institution uses multiple routing numbers, make sure you choose the one that matches the transaction you are completing. Using the wrong routing number can cause transfers to fail or take longer to process.
Why Banks and Credit Unions May Use Multiple Routing Numbers
Many financial institutions use more than one routing number. This is especially common with large national banks that operate across multiple states or maintain different processing systems for different transaction types.
In some cases, a bank may use one routing number for ACH transfers and another for domestic wire transfers. In other cases, routing numbers may vary depending on where the account was originally opened.
That is why routing number lookup pages should always be checked carefully before submitting a transfer, direct deposit form, or payment request.
Routing Numbers and Transfer Timing
Using the wrong routing number can cause a transfer to be delayed, rejected, or returned. Even when the correct routing number is used, bank transfers may still remain pending while they move through ACH processing windows, cutoff times, weekends, or internal review systems.
To better understand transfer timing and common delays, review these related guides:
- ACH transfer guide
- How long bank transfers take
- Bank processing times explained
- Why transfers stay pending over the weekend
Related Banking Directories and Resources
Online Banking Help provides a growing library of directories and educational guides to help you navigate banks, credit unions, transfers, payment systems, and common banking issues.
Frequently Asked Questions
What is a routing number?
A routing number is a 9-digit code used to identify a U.S. bank or credit union during financial transactions such as direct deposits, ACH transfers, wire transfers, bill payments, and check processing.
Do routing numbers change by state?
Yes, some banks use different routing numbers depending on the state where the account was opened. Large banks commonly assign routing numbers based on region or account location.
Is the ACH routing number the same as the wire routing number?
Not always. Some banks use one routing number for ACH transfers and another for wire transfers. Always verify the routing number based on the type of transaction you are sending.
Can I use the wrong routing number by mistake?
Yes, and doing so can lead to payment delays, failed transfers, rejected deposits, or returned transactions. That is why it is important to confirm both the routing number and the transfer type before submitting payment details.
Where can I find my bank or credit union routing number?
You can usually find it on a paper check, inside online banking, in your mobile banking app, on direct deposit forms, or on your institution’s official routing number information page.
Bottom Line
This routing number directory helps you find accurate routing numbers for major U.S. banks and credit unions, and explains how routing numbers work, why they may vary, and how to choose the correct one for a specific transfer or payment.
If you are setting up direct deposit, linking accounts, sending a transfer, or troubleshooting a payment issue, using the correct routing number is one of the most important steps in avoiding unnecessary delays.