- Toll-free: (800) 245-6199
- General Email: info@members1st.com
- CU*Talk Telephone Banking: 1-800-483-4692
- Text Banking: 46247
- Routing Transit Number: 273975331
- Bill Pay Support: 833-257-4966
(6 am to 12 am CT, seven days a week) - Lost/stolen debit card: During regular business hours, call the credit union at 800-245-6199. After hours, please call 800-325-3678.
- Credit Card Fraud: To report fraud on your card, please call 1-800-600-5249 and select option 1, then option 3.
- Need to contact a specific branch? Visit our locations page.
- Mailing Addresses:
Marshalltown Main Branch: PO Box 777, Marshalltown, IA 50158-0777
Ames Branch: PO Box 807, Ames, IA 50010-0807
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