First Interstate Bank Routing Numbers

In our record, First Interstate Bank has a total of 4 routing numbers.

Routing NumberProcess FedACHProcess FedwireLocationRegistered Name
092901683YYBillings, MTFirst Interstate Bank
102300129YNBillings, MTFirst Interstate Bank Of Montana
123103732YNBillings, MTFirst Interstate Bank
123103907YNBillings, MTFirst Interstate Bank


A routing number is a nine digit code, used in the United States to identify the financial institution. Routing numbers are used by Federal Reserve Banks to process Fedwire funds transfers, and ACH(Automated Clearing House) direct deposits, bill payments, and other automated transfers. The routing number can be found on your check.
bank check routing number

The routing number information on this page was updated on Feb. 17, 2020

Banks Nearby

Dacotah Bank, Dacotah Bank Custer Branch (0.1 miles)
Full Service Brick and Mortar Office
35 S 6th St
Custer, SD 57730
First Interstate Bank, Custer Main Branch (0.1 miles)
Full Service Brick and Mortar Office
648 Mt. Rushmore Road
Custer, SD 57730

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