Former Great Western Bank (GWB) clients, if you haven’t updated your routing number, the time is now.
The last two remaining GWB routing numbers, 091408734 and 291471134, will be discontinued soon. Clients must update their routing numbers to ensure continued service or risk checks, electronic payments, or received payments being returned. Instead, use First Interstate's routing number only (092901683).
If you need to order your First Interstate checks, revise your routing number, or update your electronic payments to the First Interstate routing number (092901683), please do so immediately. Failure to update your routing number may disrupt service and return checks.
To order new checks, log in to Online Banking via firstinterstate.com to place an order. Once logged in, select "More" from the main menu, then select "Reorder Checks" from the drop-down list.
If you have questions, need assistance ordering checks, or need support updating your electronic payment information, contact your local banker or the Client Contact Center at 855-342-3400. Representatives are available Monday-Friday from 7:30 a.m. to 7 p.m. MT and Saturday from 10 a.m. to 2 p.m. MT.