Contact Us

Thank you for your interest in First National 1870.

Stop by a Local Branch

Click here for a list of our locations and hours.

Call Us

One of our professional representatives is available and ready to assist you in our dedicated Customer Care Center from 7 am to 7 pm MT Monday through Friday, and 7 am to 3 pm MT Saturday.

Customer Care Center

Call: 1-888-827-5564

CheckIt – Automated Phone Banking

Call: 1-800-552-2432

Credit Card & Debit Card Travel Notification

Traveling out of state or overseas? Purchases not typical with your spending patterns may trigger fraud alerts for your protection. Call us in advance of any atypical travel or unusual purchase plans.

Call: 1-888-827-5564

Report a Lost or Stolen Debit Card

Call: 1-800-472-3272


We want to know how to better serve you and welcome your suggestions. Please call us or send us an email with your comments or questions. PLEASE NOTE: Do not include account numbers or personal information in your email. If you are a current customer, a First National representative will contact you by phone if it is necessary to get account information.

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Electronic email disclosure

Electronic mail sent through the Internet is not secure and could be intercepted and read at multiple mail servers across the internet. You are advised not to send personal or financial information through this communication media for this reason.

First National 1870, a division of Sunflower Bank N.A. is not responsible for information, monetary or personal losses incurred when you send your information through un-secured email.