Alton Bank Alton Bank is an independent, community bank serving Alton and surrounding areas. Alton Bank Customer Service Telephone Alton Bank: Phone: 417-778-7211 Fax: 417-778-6789 Bank of Birch Tree: Phone: 573-292-1316 Fax: 573-292-1306 Email: customerservice@altonbank.com Online Banking Login How to Log In 1. Visit the bank’s website https://www.altonbank.com/.     2. The Login is located to the right part of their page. You will be required to log in with your Access ID and Passcode.     How to Enroll…