Existing Quantum Fiber customers
- Technical support
- Upgrade current plan
- Move your service
Customer Service Portal | Customer Service Phone Number: 8339801538
Current customers
If you’re a current Quantum Fiber customer and you need assistance, we’ve got you covered.
- View support topics: Quantum Fiber Support Topics
- Visit Our Support Page: Quantum Fiber Support
Great for what larger households love to do online
Choose this speed to maximize the internet connection for your entire large household. Work online in the home office while the young kids stream in HD in the family room and the teenagers play the latest multiplayer game.
Great for device-packed households with interests all over the map
Choose this speed if multiple people in your home spend hours a day online, hosting video meetings, running multiple games, streaming movies in 4K UHD, or backing up large files to the cloud.
4K compatible device required.
Great for households that love gaming and streaming
Choose this speed to handle streaming in HD at the same time someone else plays on their favorite gaming console—and everyday activities such as email, social media, and basic file downloads.
Frequently asked questions
How do I contact Quantum Fiber support?
You can speak with a Quantum Fiber support representative by calling Quantum Fiber Customer Service at 833-970-9504 or by going to QuantumFiber.com/support.
What is the Quantum Fiber customer service phone number?
For new customers looking to order new service, check availability, or learn more about Quantum Fiber, the Quantum Fiber customer service number is 833-970-9504. For existing customers who want to upgrade a current plan, move your service, or manage your account, go to QuantumFiber.com/support.