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Phone — Sales Hours
Monday — Friday 8am - 7pm EST
Saturday & Sunday - Closed

Chat — Sales Hours
Monday — Friday 9am - 6pm EST

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Technical & Billing Support

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Call 888-276-5255

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Phone — Technical support
24 hours a day, 7 days a week

Chat — Technical support
Monday — Sunday 7am - 10pm EST

Phone — Billing support
Monday — Friday 9am - 9pm EST
Saturday 9am - 5pm EST

Chat — Billing support
Monday — Saturday 9am - 5pm EST

Our experienced Optimum Business customer service representatives can help you:

Choose the right Internet, phone, and TV services for your business.

Set up and manage your services.

Troubleshoot any issues you may be having.

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