Merger Information

We are excited and honored to partner with Alpena Alcona Area CU in our upcoming merger. AAACU is invested in the development and commitment to our communities, our employees, and most importantly – you, our members.

We will utilize this web page to keep you informed and to provide resources or reference materials as they become available. We are excited for the opportunities to grow with you and for you, as well as the growth that will come from this partnership with AAACU!

Be sure the contact information we have on file for you is up to date so you do not miss any communications related to this exciting collaboration. Contact methods may include mailings, emails, and phone calls.

Important Dates:

Account Number & Suffix

Your account number will convert to a 9-digit number beginning with 1. This means you will add a “1” and then enough zeros to your existing account number to create a 9-digit number. Examples are listed in the chart below.

CCU Account Number AAACU Account Number
123 100000123
1234 100001234
12345 100012345


You account suffixes will also change to match AAACU’s post-merger. All automatic transfers set up with your Calcite CU accounts will continue to post as scheduled; you will not need to reconfigure your account information. Main account suffixes are listed in the table below.

Account Name Suffix
Regular Shares 000
Preferred Shares (Side Savings) 020-029
Money Market (Special Savings) 030-039
Checking 040-049

Checking Accounts

The Alpena Alcona Area CU routing number is 272476433. You should NOT use this number before Saturday, March 18. You should use Calcite Credit Union’s routing number, 272484195, until this date. You may continue to use your supply of Calcite CU checks after the merger is complete.

Direct Deposits & Automatic Payments

Existing ACH transactions will continue as established after the merger. Starting on Saturday, March 18, 2023, any NEW direct deposits or automatic payments will need to use the AAACU routing number and your new account number as described above.

Online Banking & Mobile App

Online banking will be temporarily unavailable as of Friday, March 17 at 6:00 PM. After, Sunday, March 19, you will need to navigate to AAACU’s It’sMe247 login screen or download the AAACU mobile app to log into your account. Links to both these resources are located above under “Resources”. Members can click the ‘First Time User’ button in OLB to enroll via self-service or contact the credit union to have your OLB password manually reset. The ‘First Time User’ (self-service) feature requires members to have a valid phone number to text and/or an email already registered on their account.

ATM Cards

If you have an ATM card starting with the numbers 5848, your card will stop working at 5PM on Friday, March 17, 2023. It’s important that you contact CCU in advance of this date to minimize any disruption in service. ATM cards will be reordered starting Monday, March 20. If you do not receive your new card and PIN number by April 7, 2023. please contact the credit union. 

Debit & Credit Cards

Your current Debit or Credit card will continue to work until its expiration date at which a new card will be reissued. At that time, you will be reissued an AAACU Debit or Credit card. For members who participate in ScoreCard Rewards®, your points will continue to accumulate without any interruption.

Bill Pay

All of your existing payments will continue to function as scheduled prior to the merger. The Bill Pay feature on Online Banking will be temporarily unavailable starting Friday, March 17 at 6:00PM. You will be unable to view or edit your Bill Payments while our vendor completes the data conversion. This feature will become available again on Sunday, March 19 after logging into your new AAACU Online Banking profile.


Rest assured that the rates and terms of any loans that were originally opened with Calcite CU will not be affected. You can continue to make your monthly payments as you always have.

Calcite Credit Union:

Calcite Credit Union was founded in 1961 and originally served the employees of the Calcite Plant. Its field of membership is now open to persons living, working, worshiping, owning property, or attending an educational institution in the Michigan Counties of Alpena, Cheboygan, Emmet, or Presque Isle. As of March 31, 2022, Calcite Credit Union has $124 million in assets and serves over 9,434 members.

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Alpena Alcona Area Credit Union:

Alpena Alcona Area Credit Union was founded in 1953 as the Alpena Governmental Employees Credit Union. The Credit Union merged in both the Shoreline Community Credit Union in 1984 and the Iosco School Employees Credit Union in 2008. They have a field of membership that is open to any persons who reside, work, own real property, attend school, or worship within any county in the State of Michigan. As of March 31, 2022, Alpena Alcona Area Credit Union has $554 million in assets and provides financial solutions to 32,617 members.

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