Former Bank of the Cascades Clients:
If you haven’t already, be sure to update the phone number for First Interstate Bank’s Client Contact Center (1-855-342-3400). The phone numbers previously used to access Bank of the Cascades’ Customer Support Center will not work as of March 6, 2018.
Enjoy the convenience of First Interstate Bank's 24 Hour Day & Night Telephone Banking
With telephone banking you can; obtain balance information on your checking, savings, CD, or loan account; verify transactions on your account; make account transfers and have account statements faxed to you.
Before using our Day and Night Telephone Banking service, make sure you have your account number(s) handy. You will also need to know your Personal Identification Number (PIN). The first time you call, your PIN will be the last four digits of your social security or tax ID number of the name that appears first on your account. You will then be instructed to change your PIN to a new four digit number that only you know.
Our automated telephone banking system is easy to use. Simply follow the instructions given to you over the telephone. You will be offered a series of menu selections from which to choose. Best of all, if you need to talk to one of our customer service personnel, simply press zero. Our customer service representatives are available to help from M-F, 7:30am-7:00pm MST and Sat 10:00am-2:00pm MST.
If you are traveling and you bank at any of these offices or if your branch is not listed, the toll-free number is 888-752-3341.
|Great Falls||(406) 454-6244|
|Lame Deer||(406) 477-6000|
|Miles City||(406) 232-5505|
|Red Lodge||(406) 255-6000|
For all South Dakota locations:(877) 239-3840.