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First Interstate Bank Routing Numbers
4 routing numbers across 1 state.
First Interstate Bank FAQ
How many routing numbers does First Interstate Bank have?
First Interstate Bank has 4 routing numbers across 1 state. Large banks often have different routing numbers for different regions or transaction types.
Which First Interstate Bank routing number should I use?
Use the routing number for the state where your account was opened. For wire transfers, contact First Interstate Bank directly — they may use a separate wire routing number.
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