Bank Routing Number

Citizens Business Bank, N.A. Routing Number

The primary ABA routing number (RTN) for Citizens Business Bank, N.A., Ontario, CA is shown below.

Primary ABA / RTN

122234149

Verify before you send money. This is the bank's primary registered routing number, taken from the FFIEC National Information Center institution record (last refreshed here on October 8, 2026). Banks often use a different routing number for wire transfers than for ACH, and large banks vary it by region; always confirm the correct number on a check or with your bank before initiating a transfer.

What is an ABA routing number?

An ABA routing number, also called a routing transit number (RTN), is a 9-digit code that identifies a U.S. financial institution in the payment system. It tells ACH transfers, Fedwire payments, and paper checks which bank to route money to. The format was created by the American Bankers Association in 1910 and is still the backbone of U.S. domestic payments.

What is the difference between a routing number and an account number?

Your routing number identifies the bank; your account number identifies your specific account at that bank. On a paper check, the routing number is the 9-digit number in the bottom-left, and the account number is to its right.

What is the Citizens Business Bank, N.A. routing number?

The Citizens Business Bank, N.A. routing number is 122234149. It is the primary ABA routing transit number registered to Citizens Business Bank, N.A., headquartered in Ontario, CA. A bank can hold more than one routing number, so this is the one on record for the institution, not necessarily the one printed on every check. The number comes from the FFIEC National Information Center institution record, last refreshed here on October 8, 2026.

What is the Citizens Business Bank, N.A. wire routing number?

This page lists 122234149, the primary routing number registered to Citizens Business Bank, N.A. The record does not say whether the bank uses the same number for wire transfers, and many banks use a separate routing number for domestic wires. Confirm the wire routing number with Citizens Business Bank, N.A. before sending a wire.

Is ABA number 122234149 the routing number for Citizens Business Bank, N.A.?

Yes. ABA number 122234149 is the primary routing number registered to Citizens Business Bank, N.A. Check it against the routing number on a check or in your online banking before sending an ACH payment, because a bank can use different numbers by region or product.

Which bank uses routing number 122234149?

Routing number 122234149 belongs to Citizens Business Bank, N.A., headquartered in Ontario, CA. It is the bank's primary ABA routing number (FDIC certificate 21716).

Routing numbers in Ontario, CA

Credit union: Chaffey Federal Credit Union: 322280375
Credit union: Vida Federal Credit Union: 322280427
Credit union: United Parcel Service Employees Federal Credit Union: 322078833
Credit union: Ontario Public Employees Federal Credit Union: 322280414

All routing numbers in California

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Regulator records: FDIC BankFind (cert 21716) · FFIEC NIC profile (RSSD 933966)