Contact us

Our team is standing by

The best way to connect with customer service is from your Quantum Fiber app.

It's easy to chat with us and get help with any service request:

  • Late technician or reschedule an appointment
  • Upgrade or move your internet service
  • Request a repair
Quantum Fiber app - support screen

Chat with us

Look for the purple chat box in the bottom corner of any page on our website.

Connect online

Find us on our social channels or send us an email.

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fibersuccess@lumen.com

Prefer to call?

If you need to call us, we're available by phone 7 days a week, 7 a.m. to 11 p.m. CST, at 833-250-6306.

Common solutions

Find Quantum Fiber customer service answers here. Get the quick info and links you need to take care of the most popular service requests.

purple speed test icon

Test your internet speed

It's easy to test your speed from the Quantum Fiber app.

purple payment icon

Update payment method

You can update your payment method on the web. 

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Change an appointment

Cancel or reschedule in the app or on the web.

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Check for service outages

Chat with us from the app or the web to learn about outages.

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Upgrade or move service

Chat with us in the app or the web to change your service.

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Pause or cancel service

Pause or cancel your service easily on the web. 

© 2023 Q Fiber, LLC. All Rights Reserved. Quantum, Quantum Fiber, and Quantum Fiber Internet are trademarks of Quantum Wireless LLC and used under license to Q Fiber, LLC.