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Send us a fax at 978-952-8535 or toll free at 888-279-7725.
Via US Mail
Hanscom Federal Credit Union
25 Porter Road, Suite 100
Littleton, MA 01460-1434
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To report a lost or stolen Mastercard® card
The office is open during the following days and hours:
Monday – Friday • 8:00 a.m. – 5:30 p.m.
After business hours and weekends call:
Fraud Prevention Services
24-hour toll-free number