Digital Federal Credit Union, commonly referred to as DCU, is a credit union based in Marlborough, Massachusetts. DCU operates 22 full-service branches and 3,000 CU Centers located in 46 states. The company offers wide range of products under Savings, Checking, Consumer Loans; Mortgages, Credit Cards, and Investments. DCU offers expedited customer service to address consumer grievances. In order to get in touch with authorities and representatives at DCU, kindly refer to given customer service contact information. DCU Customer Service Number: 800.328.8797 | TTY: 800.395.5146 DCU Information Centre Phone Number: 800.328.8797 | Hours of Calling: Weekdays from 8:00 am to 9:00 pm and Saturdays from 9:00 am to 3:00 pm, Eastern Time. To Report a DCU Lost or Stolen Visa Card: 800.328.8797 | After Hours Support: 800.847.2911 DCU Mailing and Shipping Address: DCU P.O. Box 9130 Marlborough, MA 01752-9130 ABA Routing Number: 211391825 NMLS# 466914 Click to find nearest DCU Branch Offices and