Support Services - Contact Us

By Email

By Phone

    • In Maryland: 410-239-6920
    • Toll-free: 1-888-889-4NET
    • Fax: 410-239-0820

By Mail

  Quantum Internet & Telephone
  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


Quantum provides service in Carroll County and the Baltimore metro area!

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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.


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