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Quantum Fiber, formerly called CenturyLink Fiber, is a growing fiber internet company that offers some of the fastest, most affordable fiber internet services in the United States.

Company Overview

Quantum Fiber logo

The Quantum Fiber network uses optical fiber to deliver extremely fast internet connections to homes and businesses. Fiber optic cables transmit data as beams of light through special fiberglass strands, resulting in upload and download speeds that are close to the speed of light.


  • Has some of the cheapest pricing on fiber internet
  • Offers free 24/7 online customer service and tech support
  • Rapidly expanding geographical reach


  • Only has two plan options
  • Does not offer Multi-Gig internet speeds
  • Pricing is not guaranteed, can change anytime

Available Speeds: 500 to 940 Mbps
Price Range: $50 to $75 per month
Data Cap: None
Contract Required: No

Fiber internet has a lot of advantages over standard cable or DSL. Some benefits of switching to fiber include ultra-low latency, reduced lag when gaming, and smooth video calls. Everything you do online, from social media to business, gets easier when you switch to fiber.

With fast home connectivity, you can work from home or take online classes without having to deal with interruptions or buffering, stream 4K videos or songs from the best music streaming service on multiple devices at the same time, and download 2-hour HD movies in just seconds, rather than a half-hour.

Why We Like Quantum Fiber

What is Quantum Fiber internet? Is Quantum Fiber the same as CenturyLink?

The short answer is that Quantum Fiber formerly operated under the name CenturyLink Fiber. But now, the CenturyLink company is rebranding as Lumen Technologies.

Quantum Fiber is the name of their fiber division. It is still a branch of Lumen Technologies, but now offers an exceptional service experience with unlimited data and transparent pricing.

As one of the best fiber internet providers, Quantum Fiber’s competitors include:

The fiber internet company is a rock-solid network that has 99.9% reliability. Connectivity is tailored for homes, large and small businesses, and multi-family buildings (Quantum Fiber Connected Communities.) In addition to fiber internet, Quantum Fiber offers 360 WiFi, Connected Voice, and third-party streaming services and networking hardware.

Where Is Quantum Fiber Available?

map of Quantum Fiber locations

Quantum Fiber serves areas in the following states:

ColoradoNew Mexico

Developers are rapidly expanding the Quantum Fiber network. If you are wondering, “Is Quantum Fiber available in my area?” you can check to see which Quantum Fiber services are available by entering your address into the Quantum Fiber availability checker. If fiber internet is not available for your home address yet, you can opt to sign up to be notified when it comes to your town.

Products and Plans

500 MbpsUp to 500 Mbps$50Prices may vary by location. Technology might not be 100% fiber-optic in some cases.
940 MbpsUp to 940 Mbps$75Popular choice. Speeds can vary by location.

500 Mbps Plan – $50 /mo

Quantum Fiber offers a 500 Mbps plan for $50 per month. Actual prices depend on your location. Quantum Fiber does offer this disclaimer: “Although our fiber service usually means 100% fiber-optic network to your location, in limited circumstances Quantum Fiber may need to deploy alternative technologies.”

940 Mbps Plan – $75 /mo

Quantum Fiber offers fiber internet speeds up to 940 Mbps for $75 per month. This is Quantum Fiber’s most popular plan. Keep in mind that actual speeds vary based on location.

All Quantum Fiber plans have no annual contracts and unlimited data. 360 Wifi equipment is also included for no extra cost.

Quantum Fiber 360 WiFi

Quantum Fiber 360 Wifi is a mesh Wifi network that improves connectivity in the home. 360 Wifi is included with any Quantum Fiber internet service.

Instead of directing all internet traffic through a single router, multiple 360 Wifi Pods are placed at different points throughout the home. These pods communicate with each other and work together to deliver seamless, complete coverage for your entire home – even in weak spots.

Quantum Fiber customers also gain access to the 360 WiFi mobile app, which is available on the Google Play and Apple App stores. This app can be downloaded on your phone or tablet and gives you complete control over your home Wifi network. You can allow guest access, block devices, content, and ads, manage your kids’ online activities, and more.

Streaming TV

Quantum Fiber

Quantum Fiber offers on-demand and live TV streaming options through DirectTV. There are three packages to choose from, so you can choose the best TV streaming service based on your viewing preferences. Streaming TV packages are billed separately from your fiber internet plan.

Entertainment – $74.99 /moChoice – $99.99 /moUltimate – $109.99 /mo
75+ channels105+ channels140+ channels
Entertainment FavoritesEntertainment, Lifestyle & SportsEntertainment, Lifestyle, Sports & Movie Favorites

All packages include unlimited streaming, 20 hours of Cloud DVR (or unlimited DVR storage for $10 extra per month), the ability to stream on every device, and access to popular apps like Netflix, Amazon Prime Video, Max, and Disney Plus.

The cheapest TV streaming option is the Entertainment package, which costs $74.99 per month. It includes over 75 channels, including favorites like ESPN, HGTV, Nickelodeon, TNT, and more.

The middle-tier plan is the Choice package. It costs $99.99 per month for over 105 channels. Channels include regional sports and more, like Sundance and Travel.

The final plan is the Ultimate package. For $109.99 per month, you get over 140 channels, which is 35 more channels than the Choice package. These additional channels include National Geographic Wild, NBC Golf, FXM, CBS Sports Network, and more.

Connected Voice

Quantum Fiber

Quantum Fiber Connected Voice is an all-in-one communication platform available to all customers. It is designed to meet the needs of today’s connected world. There are two Connected Voice plans: Basic and Professional.

Basic – $40 /moProfessional – $50 /mo
Great Calling FeaturesConnected Voice app for 2 devices
Unlimited Nationwide Long DistanceUnlimited Nationwide Long Distance
1 Phone NumberInstant Messaging
Interactive Voice Response
Video Conferencing
Great Collaboration Tool
Up to 3 Phone Numbers

The first is the Basic plan. For $40 per month, you get a phone number, calling features, and unlimited nationwide long distance calls.

Then, there’s the Professional plan for $50 per month per user. In addition to unlimited nationwide calls, you get 3 phone numbers, instant messaging, video conferencing, interactive voice response, and the Connected Voice app for 2 devices.

There is a one-time $99 installation fee for either of these plans. The Basic plan requires the purchase of an ATA adapter for $89 (one-time charge.) The Professional plan requires an initial purchase of $179 per package for an IP phone.

How To Sign Up for Quantum Fiber

You can sign up for Quantum Fiber online by visiting their website. The first step is to see which fiber internet services are available in your area. After you type your address into the availability checker, you can select a speed tier and sign up for fiber internet.

Next, you can choose if you want to lease or purchase a gateway. 360 Wifi Pods are included with your purchase of a fiber internet plan, but you will still need to pay for the gateway, which is essentially an all-in-one modem and router.

For a premium experience, Quantum Fiber recommends that you use the C4000 wireless modem with WiFi 6 technology. But, as long as it meets the guidelines, you can pick something different.

Finally, a technician will visit your home to install your fiber internet connection. During installation, they will set up fiber optic cable and optical network terminal (OPT) to deliver fiber internet to your address. The technician will also run speed tests to make sure you get the best internet speed possible. It takes between 3-4 hours to complete the installation.

How To Transfer from CenturyLink Fiber to Quantum Fiber

If you already have CenturyLink Fiber, you can easily transfer to Quantum Fiber. Just call the Fiber Customer Success team at 1-833-250-6306 to receive a link to transfer your account over. They will also answer any questions about the change you may have.

You will need to re-enter your payment information and confirm that you are ready to make the switch to Quantum Fiber. You can use your credit or debit card, Paypal, or Apple Pay

If you already have a SmartNID modem, then a technician visit will not be necessary to complete your switch from CenturyLink Fiber to Quantum Fiber. There will just be a brief service interruption while the Quantum Fiber team switches you over.

However, if you have a different modem, you will be required to schedule a technician installation visit. You can select a date and time that works for you. There is no installation fee for transitioning to Quantum Fiber.

How To Request Technical Support/ Quantum Fiber Contact Information

Quantum Fiber offers 24/7 customer support. The best and easiest way to contact the customer service team is through the Quantum Fiber app. Just click the purple Chat button to connect with a representative.

You can also live chat with an employee by clicking the button at the bottom of your screen when logged in to the Quantum Fiber website.

🧒 Quantum Fiber offers 24/7 customer support. Get instant help by using the Quantum Fiber app or live chat feature for service issues or questions.

If you would prefer to talk with someone on the phone, then you can call the Fiber Customer Success team at 833-250-6306. They are open 7 days a week from 7:00 AM to 11:00 PM CST.

You can also opt to email Quantum Fiber at [email protected].

How To Cancel Quantum Fiber

Quantum Fiber internet is charged on a month-to-month basis with no contract requirements. There is no cancellation fee if you decide that Quantum Fiber isn’t the best fit for your home.

You have the option to pause or cancel your Quantum Fiber service. You can pause your service for 1-9 months. Or, you can cancel your service altogether using the app or website.

To cancel Quantum Fiber from the app, go to your Subscription screen and click “Manage my Subscription.” Select the option to cancel your subscription. A message will appear confirming that you wish to cancel and explaining that your monthly charge cannot be refunded. Click “Continue cancellation.” Next, you can pick the date when you want your fiber internet service to end. You can also rate your experience and give a reason for canceling. After that, click “Cancel service” and your cancellation request will be submitted. Your services will end on the date you chose.

🚫 There are no cancellation fees with Quantum Fiber. You can pause or cancel your service easily through the app or website, with options to pause service or cancel anytime.

On the Quantum Fiber website, you can start the cancellation process by signing in and selecting “My account” from the dropdown menu. From there, click “Cancel subscription.” The next screen will confirm that you wish to cancel and give you a list of equipment that must be returned within 30 days to avoid any fees. Click on the blue “Continue” button and your service will end after your current billing cycle is over.

Quantum Fiber Devices


The C4000 WiFi 6 Router utilizes the latest WiFi 6 802.11 standard to drive the next wave of internet connectivity. With four times the data capacity in dense environments, it is equipped to handle the demands of present and future home networks. Fast WiFi speeds enable seamless 4K streaming, online gaming, smart home automation, and more.


The C3000Z router provides dual-band WiFi capabilities, rated at AC2200, delivering speeds of up to 1.7 Gbps* over 5GHz and 450 Mbps* over 2.4GHz. The high-powered access points (APs) on both frequencies extend coverage and provide an optimal wireless experience for households with a growing number of WiFi devices. Operators can create up to four separate WLAN networks for video, data, and guests, thanks to the ability to generate multiple WiFi networks through the router’s up network setting. Additionally, the C3000Z router is equipped with auto-detect CenturyLink technology for seamless connectivity.


The C3510XZ WiFi 6 Gigabit Ethernet Gateway is compatible with the latest dual-band WiFi 6 technology, with optimized bandwidth utilization and increased network capacity. The gateway can support a higher number of simultaneous streams, providing superior connectivity and extremely low latency for more subscribers to enjoy.

C5500XK and C6500XK

The C5500XK or C6500XK serves as both a modem and a fiber-optic network terminal. It is responsible for decoding the optical signals that enable your fiber internet connection. Upon installation, this modem is permanently attached the wall inside your home. Do not remove it even if you cancel your Quantum Fiber service.

360 Mesh WiFi

Mesh WiFi systems, also known as “mesh networks,” provides extensive WiFi coverage throughout your home or workspace. By creating an adaptable network, these systems are capable of sending and receiving data in the most efficient way possible. As you move your devices around, the mesh system automatically switches to the nearest WiFi pod, providing you with the strongest available signal.

The flexibility of mesh systems allows for customization, often equipped with an app to manage all network features. You can turn off WiFi access to specific devices, establish access controls, and regulate guest access with ease.

Is Quantum Fiber Right for Me?

Quantum Fiber

Quantum Fiber ranks as one of the best fiber internet providers. It is fast, reliable, affordable, and has exceptional service.

At $75 for 940 Mbps (nearly 1 Gig internet speeds), Quantum Fiber is one of the least expensive fiber internet companies. For comparison, Verizon Fios charges $89.99 for their 940 Mbps plan and AT&T Fiber charges $80 for their 1 Gig plan. While there isn’t a huge selection of plans to choose from and no Multi-Gig options, Quantum Fiber holds its own against its contenders.

🏅 With competitive pricing and 99.9% network reliability, Quantum Fiber is an excellent choice for anyone looking to upgrade their internet service.

If Quantum Fiber is available in your area, you should certainly consider signing up. It is an especially great fiber internet option for budget-conscious customers who want to upgrade their internet service but don’t use too much bandwidth.

Keep in mind, however, that prices and speeds may vary based on location. So, be sure to compare Quantum Fiber against other fiber internet providers that operate in your area. Take some time to research and read our other fiber internet company reviews to make sure you select the right one for your home.