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: 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
Quantum provides service in Carroll County and the Baltimore metro area!
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.
410-239-6920
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