Contact Us

NDSC Offices

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NDSC - NYC Office: 40.775778, -73.952850
NDSC - Long Island Office: 40.798611, -73.697941
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NDSC - NYC Office
888.533.8657 x800
Technical Support (Emergency Response)

303 East 83rd Street, New York, NY
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NDSC - Long Island Office
Technical Support, Accounting, Human Resources

39 Orchard St, Manhasset, NY 11030

How To Reach Us

Our team is available 24 hours a day, 7 days a week, 365 days a year at 888.533.8657.  You may also reach us via email, by department, with the following:

Technical Support –
Sales and PreSales Support –
Billing Inquiries –
Career Opportunities –