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Alliant Credit Union official phone number

Find the official Alliant Credit Union phone number listed for Member services. Confirm the company's source page before sharing information or starting a call.

Public U.S. number listed on the source

1-800-328-1935

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 Alliant Credit Union official source

Source and department details

Department or route
Member services
Source checked
October 17, 2026
Latest listing review
October 17, 2026 — phone confirmed on the official source.

Evidence from the official source

Phone support — Call 800-328-1935. Monday - Friday: 8 AM - 9 PM CT; Saturday: 10 AM - 3 PM CT.

For member support. Check the official page for current hours and department-specific options.

SafePhonebook is an independent directory and is not affiliated with Alliant Credit Union. We do not guarantee a number, a caller's identity, or an outcome from contacting a company.