Credit Union Information

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Branch Location

83 Merrimack Street Lowell, MA 01852 Phone: 978-328-5100 Fax: 978-458-8933

Contact Us

Branch Hours

Day Opening To Closing
Monday – Tuesday 9:00am 4:00pm
Wednesday 9:00am 12:00pm
Thursday 9:00am 7:00pm
Friday 9:00am 5:00pm
Saturday 9:00am 12:00pm


Mills42 VISA® Credit Card Services Phone Numbers

  • VISA® 24-hour Cardholder Service: 866.820.4832
  • Lost/Stolen VISA® Credit Card: 800.449.7728
  • 24/7 Assistance while traveling:
    • — Within U.S. 800.VISA.911 (800.847.2911)
    • — Outside U.S. 303.967.1096
  • VISA® Credit Card Activation (within the U.S.): 800.631.3197

Mills42 MasterCard™ Debit Card Phone Numbers

  • Lost/Stolen MasterCard ® Debit Card: 888-241-2510
  • Please report all lost or stolen cards immediately to the credit union office at 978-328-5100 or contact our 24-hour customer hotline number at 1- 888-241-2510 or direct at 909-941-1398.
  • Please be advised that after activation, if your Mills42 MasterCard™ Debit Card is lost or stolen, it can be used without needing your PIN number.

Send VISA® Credit Card payments to:

PO BOX 37603

ACH Routing Number - 2113-81592

Not a member yet? We’ll take care of that for you as you’re opening your account or taking out a loan. If you want to get a jump-start, enroll online or just give us a call at 978.328.5100. We’ll be happy to help you build from here.