first interstate bank routing number

First Interstate Bank Routing Number: Full Guide 2025

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In today’s digital banking world, having the right financial information is crucial. Whether you’re setting up direct deposit, making a wire transfer, or paying bills online, knowing your bank’s routing number is a must. For customers of First Interstate Bank, this small string of numbers plays a big role in every transaction. The first interstate bank routing number helps identify the bank during electronic transfers and ensures your money reaches the correct destination. Many people don’t realize that using the wrong number can lead to delayed payments or failed transactions. That’s why it’s important to understand what this number is, how to find it, and when you need to use it. In this article, you’ll learn everything you need to know about the First Interstate Bank routing number, how it works, and how to avoid mistakes when using it.

What Is the First Interstate Bank Routing Number?

A routing number is a 9-digit code used to identify banks in the United States. It’s issued by the American Bankers Association and used for processing financial transactions, especially those involving direct deposits, electronic payments, and wire transfers. Every bank has at least one routing number, and some banks have multiple depending on their size or the region they serve.

The first interstate bank routing number used for most domestic transactions is 092901683. This number is associated with the bank’s headquarters and is often used by customers in Montana, South Dakota, and Wyoming. However, because First Interstate Bank has expanded into several other states, routing numbers can sometimes vary by location. That’s why it’s important to confirm the routing number tied to your specific branch or account.

Using the correct routing number helps make sure your money reaches the right place quickly and safely. The wrong one could delay your payment or even send funds to the wrong account.

How to Find Your First Interstate Bank Routing Number

There are several easy ways to find your First Interstate Bank routing number. The most common method is to check the bottom of a paper check. If you have a checkbook, look for a row of numbers along the bottom. The routing number is the first nine-digit code on the left. Next to it is your account number, and then the check number.

If you don’t use checks, you can also log into your online banking account. First Interstate Bank’s website and mobile app both display your routing number along with your account details. This is a reliable and safe way to double-check your number before making a payment or setting up a direct deposit.

You can also call First Interstate Bank’s customer service or visit your local branch. Some states or branches may have a different routing number, so it’s always smart to ask.

Routing Number vs. Account Number

Many people confuse routing numbers with account numbers. While they often appear together, they serve different purposes.

The routing number identifies your bank, not your personal account. It’s used to tell other banks where the money is coming from or going to. Think of it as the bank’s ID number.

On the other hand, your account number is unique to you. It identifies your specific account within the bank. This is the number you use when someone is depositing money into your account or when you pay bills online.

For example, if you’re setting up direct deposit, you’ll need both your routing number and your account number. The routing number tells the system where to send the money, and your account number tells it whose account to credit.

Always double-check both numbers before sharing them or filling out any financial form.

When You Need the Routing Number

There are several situations where you’ll need to know the first interstate bank routing number. Here are the most common:

Direct Deposit Setup

Employers need your routing number to send your paycheck directly to your bank account. This is also true for government payments like Social Security or tax refunds.

Paying Bills Automatically

When you set up auto-pay for utilities, loans, or subscriptions, the system will ask for your routing number and account number.

Making Electronic Transfers

ACH transfers (Automated Clearing House) need the routing number to move money between banks. This applies to both personal and business transactions.

Wire Transfers

Both domestic and international wire transfers need routing numbers. The bank uses this to identify where the money is going.

Using the correct routing number avoids delays and makes sure your transaction is processed smoothly.

First Interstate Bank Routing Number for Wire Transfers

Wire transfers are a bit different from other types of payments. They are faster and usually processed the same day. But they also require specific information.

For domestic wire transfers, First Interstate Bank uses the same routing number: 092901683. This number works for most wire transfers within the United States.

However, international wire transfers may require additional details. While First Interstate Bank does not have a SWIFT code of its own, it often uses a correspondent bank to handle international wires. You will need to contact customer service or your branch to get the correct information, especially if you’re receiving money from outside the country.

Make sure to confirm all details before sending a wire. Mistakes in routing numbers can lead to failed transfers or even lost funds.

Is the Routing Number the Same for Every State?

No, the routing number might not be the same for every state. While 092901683 is the most commonly used first interstate bank routing number, some customers may have a different one depending on their location.

First Interstate Bank operates in several states, including:

  • Montana
  • South Dakota
  • Wyoming
  • Idaho
  • Oregon
  • Washington
  • Arizona
  • Colorado
  • Iowa
  • Kansas
  • Minnesota
  • Missouri
  • Nebraska

In many cases, the routing number stays the same across branches. But in some areas — especially where First Interstate merged with other banks — you may have a different routing number tied to your account.

To be sure, check your checkbook, log in to your account online, or contact your local branch. Using the wrong routing number could delay your transactions or send money to the wrong bank.

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FAQs About First Interstate Bank Routing Number

1. What is the routing number for Montana?

For most Montana customers, the routing number is 092901683, but it’s always best to confirm with your local branch.

2. Can I use the same number for ACH and wires?

Yes, in most cases. For First Interstate Bank, the same routing number is used for ACH and domestic wire transfers. For international wires, extra steps may be needed.

3. What happens if I use the wrong routing number?

The transfer may fail or go to the wrong bank. Always double-check before submitting financial forms or online payments.

4. Does First Interstate Bank have a SWIFT code?

Not directly. It often uses a partner bank for international wires. You’ll need to contact your branch for specific instructions.

5. Can routing numbers change?

Yes. If banks merge or update their systems, routing numbers can change. First Interstate Bank will notify customers if this happens.

Final Thoughts

Understanding your first interstate bank routing number is more important than most people think. This small set of numbers is key to smooth banking — from getting paid to sending money. While the standard routing number is 092901683, it’s always smart to verify your specific branch’s number to avoid errors.

If you’re unsure, check your checks, log in to your online banking, or call customer support. A little effort now can save you from big problems later.

Make sure your transactions go where they’re supposed to — and don’t let a tiny number cause a major headache.