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Western Alliance Bank official phone number
Find the official Western Alliance Bank phone number listed for Corporate headquarters. Confirm the company's source page before sharing information or starting a call.
Public U.S. number listed on the source
1-602-389-3500
This number was visible on the linked official source when it was checked on October 17, 2026. Phone numbers and departments can change, so use the source link below to confirm it before calling. A source check cannot establish who is calling you.
Open Western Alliance Bank official sourceSource and department details
- Department or route
- Corporate headquarters
- Source checked
- October 17, 2026
- Latest listing review
- October 17, 2026 — phone confirmed on the official source.
Evidence from the official source
Corporate Headquarters. One East Washington Street, Suite 1400, Phoenix, AZ 85004. (602) 389-3500.
Institutional/commercial bank corporate-headquarters contact, not personal-retail support.
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