Bank Routing Number

Western Alliance Trust Company, N.A. Routing Number

The primary ABA routing number (RTN) for Western Alliance Trust Company, N.A., Phoenix, AZ is shown below.

Primary ABA / RTN

122106497

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 Western Alliance Trust Company, N.A. routing number?

The Western Alliance Trust Company, N.A. routing number is 122106497. It is the primary ABA routing transit number registered to Western Alliance Trust Company, N.A., headquartered in Phoenix, AZ. 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 Western Alliance Trust Company, N.A. wire routing number?

This page lists 122106497, the primary routing number registered to Western Alliance Trust Company, 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 Western Alliance Trust Company, N.A. before sending a wire.

Is ABA number 122106497 the routing number for Western Alliance Trust Company, N.A.?

Yes. ABA number 122106497 is the primary routing number registered to Western Alliance Trust Company, 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 122106497?

Routing number 122106497 belongs to Western Alliance Trust Company, N.A., headquartered in Phoenix, AZ. It is the bank's primary ABA routing number.

Routing numbers in Phoenix, AZ

Bank: USAA Federal Savings Bank: 314074269
Bank: Western Alliance Bank: 122105980
Credit union: Oneaz Credit Union: 322172496
Credit union: Arizona Central Credit Union: 322172441
Credit union: Copper State Credit Union: 322172849
Bank: Goldwater Bank, N.A.: 122106277
Bank: Integro Bank: 122106484
Credit union: Banner Federal Credit Union: 322172881

All routing numbers in Arizona

View Western Alliance Trust Company, N.A.'s full profile →

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Regulator records: FFIEC NIC profile (RSSD 5805451)