Support Services - Contact Us

    By Email

  • Sales (sales@qis.net)
  • Billing (office@qis.net)
  • Support (help@qis.net)
  • By Phone

  • In Maryland: 410-239-6920
  • Toll-free: 888-889-4-NET
  • Fax: 410-239-0820
  • By Mail

    Quantum Internet Services, Inc.
    2975B Manchester Road
    Manchester, MD 21102

    Tech Support Hours

  • 9:00am - 9:00pm Monday - Friday
  • 10:00am - 5:00pm Saturday
  • 12:00pm - 5:00pm Sunday
  •  

Sales Centers

    DMH Computers

  • Open Monday through Friday 8:30-5:00
  • Phone: (443) 507-0709
  • Located at 1005 S. Main Street, Hampstead, MD
  • Canyon Oak Technologies, LLC

  • Phone: (443) 507-5667
  • P.O. Box 406, Hampstead, MD 21074




Use of Quantum's services, systems, servers, and facilities, constitutes the customer's agreement with Quantum's Rules and Regulations, and the Quantum Service Agreement, both of which are subject to change without notice.

┬ęCopyright 1995- 2014 Quantum Internet Services, Inc., ┬ęCopyright 1995- 2014 Quantum Telecommunications, Inc. All Rights Reserved.