Skip to main content

We will be performing scheduled maintenance on Thursday, August 20th from 10:00 p.m. MT until 11:30 p.m. MT. Online Banking and Mobile Banking will not be available at this time. We apologize for any inconvenience this may cause.

You have safely signed out. Thank you for banking with National Bank of Arizona.

Sign back into your account

Your session expired and you have been signed out for your safety.

Sign back into your account
Find a branch

Bringing You the Future of Banking Today

At National Bank of Arizona, we’re making significant investments in technologies that will allow us to provide our customers with some of the most advanced features and the best modern banking experience possible. We have been working to replace our foundational banking systems with what we believe is the most innovative technology platform in any large bank in America.

Customer Benefits

Speed

Transaction posting will now happen in real time.

Clarity

Faster transaction posting creates greater visibility across all your accounts.

Convenience

Use of digital signature for changes to existing accounts and for opening new accounts.

Changes you'll want to know about

Credit Reserve Account Updates

New changes are coming. Your Credit Reserve Account will be called Flex-Line. You can view the new agreement and learn about the change in terms that may impact you.

Learn More
Checking & Savings Account Updates

The bank is moving to a real-time processing system for posting transactions to accounts, which can help you manage your accounts more effectively to avoid potential changes in fees. The changes are outlined in your new Deposit Account Agreement.

Learn More
Commercial Deposit Account Updates

We want to let you know what’s changing and what’s not changing about your Commercial Deposit Accounts. With the system conversion, the Deposit Account Agreement has changed, and the look of statements will change.

Learn More
Back to home

A division of Zions Bancorporation, N.A. Member FDIC

Equal Housing Lender, NMLS Registry 467014 or Swift ZFNBUS55

© 2026 Zions Bancorporation, N.A. All Rights Reserved.

Routing number: 122105320

Customer Service
800-497-8168

Mon - Sat, 6 a.m. - 9 p.m. MST

Digital Banking Support
855-848-2799

Mon - Sat, 6 a.m. - 9 p.m. MST

Cookie Consent
Your Privacy Is Important to Us

National Bank of Arizona uses cookie trackers for the operation and optimization of our website. The protection of personal data and cookie management page provides details about the cookies used and gives you the option to review and modify your choices at any time.

Cookie Consent

Manage Your Preferences

You can change your consent at anytime. You can consult our cookies policy at any time here.

These cookies make our website easier to use by remembering choices you’ve made. These cookies are required for good functionality of our website and can’t be switched off in our system. Without these cookies, you would not be able to use our site normally.

These cookies help us to draw up anonymized statistics about the performance of our digital applications. They allow us to improve the relevance, ergonomics, and performance of the services offered on the website.

We use these cookies to deliver advertisements that are more relevant to you and your interests. They are also used to limit the number of times you see an advertisement as well as to help measure the effectiveness of an advertising campaign. These cookies remember that you have visited our website and use this information to tailor advertising for our products when you visit other websites.

These are cookies that are created by domains that are different than ours. These can be used for online advertising purposes like keeping track of browsing activities to show personalized ads of goods and services across multiple websites.

Thanks for Sharing Your Cookie Preferences

You can change your consent at anytime. Simply select on the manage cookies option below. Or click on the link at the bottom of the page.

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue

Warning: you’re about to leave!

You're about to leave National Bank of Arizona's website and be directed to a website that is not affiliated with Zions Bancorporation, N.A. dba National Bank of Arizona and may have a different privacy policy and level of security. Zions Bancorporation, N.A. is not responsible for, and does not endorse or guarantee, the privacy policy, security, accuracy, or performance of the third party’s website, or the information, products, or services that are expressed or offered on that website.

Continue