What a routing number is and why you need it for wire transfers

A routing number is a nine-digit code that identifies the specific bank or credit union where your account lives. When you send a wire transfer, the routing number tells the sending bank exactly which financial institution to route your money to. Without it, the wire cannot reach the right place.

California banks and credit unions each have their own routing number. If you are wiring money from outside California to a California account, or from a California account to somewhere else, you will need the correct routing number for the receiving bank. Using the wrong number can delay your transfer or send it to the wrong institution entirely.

Key Takeaways

  • Your bank's routing number is a nine-digit code printed on the bottom left of your checks, or you can call your bank's customer service line to ask for it.
  • Different branches of the same bank may have different routing numbers, so confirm you have the routing number for the specific branch where your account is held.
  • Credit unions use routing numbers too, and you can find yours through CO-OP Network, Shared Branch locators, or by calling your credit union directly.
  • The Federal Reserve maintains a public database of routing numbers at fedachindir.frb.org, where you can search by bank name and state.
  • Wire transfer routing numbers are sometimes different from ACH routing numbers for the same bank, so confirm which type of transfer you are making.

Finding your routing number on a check or bank statement

The easiest place to find your routing number is on a check from your California bank account. Look at the bottom left corner of the check. You will see three groups of numbers: the routing number (nine digits) comes first, then your account number, then the check number on the right.

If you do not have checks, log into your online banking portal. Most California banks display the routing number in the account details or settings section. Some banks label it "ABA routing number" or "transit number." Your monthly bank statement may also list it, though not all statements include it by default.

Calling your bank or credit union directly

The fastest way to confirm your routing number is to call your bank's customer service line. Have your account number ready. Tell them you need the routing number for wire transfers, because some banks use different routing numbers for wire transfers versus ACH transfers (automatic clearing house transfers, which are slower).

If you bank with a California credit union, call the credit union's main number and ask for the routing number. Credit unions often participate in shared branching networks like CO-OP or Shared Branch, which means you can conduct transactions at other credit unions, but your home credit union's routing number is what you need for wire transfers.

Using the Federal Reserve's routing number database

The Federal Reserve maintains a public database called the FedACH Directory, available at fedachindir.frb.org. You can search by bank name, city, and state to find routing numbers for any bank in California. This database is official and updated regularly.

Enter your bank's name and select California as the state. The results will show the routing number, the bank's address, and whether it participates in wire transfers. If your bank has multiple branches in California, you may see more than one routing number listed — confirm you have the one for your specific branch or account type.

Understanding wire transfer routing numbers versus ACH routing numbers

Some banks use one routing number for wire transfers and a different one for ACH transfers. Wire transfers move money faster (usually same day or next business day) and use a different system than ACH transfers, which can take three to five business days. If you are sending a wire transfer, you must use the wire transfer routing number, not the ACH number.

When you call your bank or look up the number online, always specify that you need the routing number for a wire transfer. If the bank gives you a number without asking which type of transfer you are making, call back and confirm it is the wire transfer routing number. Using the wrong one will not send your money to the wrong place — the bank will reject it or ask you to resubmit with the correct number — but it will delay your transfer.

What to do if you cannot find your routing number

If your bank is very small or newly opened, it may not appear in the Federal Reserve database yet. Call the bank directly and ask for the routing number. Have the bank representative spell it out to you and repeat it back to confirm all nine digits.

If you are wiring money to someone else's California account and they cannot find their routing number, ask them to call their bank or check a recent check. Do not guess or use a number from an online search that you cannot verify — an incorrect routing number can cause the wire to fail or be delayed while the sending bank investigates.

Frequently Asked Questions

Is the routing number the same for all branches of my California bank?

Not always. Large banks like Bank of America, Wells Fargo, and Chase have multiple routing numbers depending on the branch location or account type. Call your specific branch or check your account details online to confirm you have the routing number for your account, not just any branch of the bank.

Can I use my routing number for both wire transfers and online bill payments?

Wire transfers and bill payments sometimes use different routing numbers. If you are paying a bill online through your bank's website, the bank will handle the routing automatically. For wire transfers, always confirm you have the wire transfer routing number specifically.

What happens if I use the wrong routing number?

The sending bank will usually catch the error and reject the wire or ask you to resubmit with the correct number. In rare cases, the wire may go to a different bank, which will then reject it and send it back. Either way, the transfer is delayed, but your money does not disappear.

Do credit unions in California have routing numbers?

Yes. Credit unions use routing numbers just like banks do. You can find your credit union's routing number by calling them, checking your account details online, or searching the Federal Reserve database by the credit union's name and California as the state.

Is the routing number printed on my debit card?

No. Debit cards do not print routing numbers. You will find it on a check, in your online banking portal, on your bank statement, or by calling your bank. The routing number is tied to your bank account, not your card.