Quantum Fiber Review 2025: Is It Right for You? Compare Plans, Prices, and Speeds
Quantum Fiber won our annual customer satisfaction survey, so our experts spent months researching what all the fuss with Quantum internet is about.
Compare Quantum Fiber to the competition
Prices starting at
$50.00/mo.
Max download speeds up to
8,000 Mbps
Service Type
Fiber
Prices starting at
$35.00/mo.
Max download speeds up to
2000 Mbps
Service Type
Fiber
Pricing, speed and availability not guaranteed. Subject to change.
Quantum Fiber fares well against major competitors
| Provider | Price | Max download speeds | Flat-rate pricing | Data cap | Details |
|---|---|---|---|---|---|
| AT&T | $55.00–$245.00/mo. | 100–5,000 Mbps | Yes | Unlimited | |
| Cox | $70.00–$150.00/mo.* | 250–2,000 Mbps | No | 1.2 TB | |
| Quantum Fiber | $45.00–$165.00/mo. | 200–8,000 Mbps | Yes | Unlimited | |
| Spectrum | $50.00–$70.00/mo.* | Up to 500–1,000 Mbps | No | Unlimited | |
| Xfinity | $35.00–$105.00/mo.** | 150–2,000 Mbps | No | 1.2 TB |
* For first 12 months.
** For first 12 or 24 months.
Data effective as of publish date. Offers and availability may vary by location and are subject to change.
One of Quantum’s biggest advantages over the competition is its pricing. With prices that start at just $45.00 per month, Quantum fiber internet plans are a far better deal than comparable plans from cable ISPs like Cox, Xfinity, or Spectrum. Each ISP has second-year price increases that make them far pricier than Quantum.
As Quantum’s closest national fiber competitor, AT&T’s 1 Gig plan ($80.00 a month) is slightly pricier than Quantum’s 1 Gig plan. But AT&T also offers bundle savings if you add mobile phone service to your plan.
Quantum Fiber plans offer simple prices, fast performance
| Plan | Price* | Max download speed | Max upload speed | Details |
|---|---|---|---|---|
| 200 Mbps | Starting at $45.00/mo. | 200 Mbps | 200 Mbps | View plan |
| 500 Mbps | Starting at $50.00/mo. | 500 Mbps | 500 Mbps | View plan |
| 1 Gig | Starting at $65.00/mo. | 940 Mbps | 940 Mbps | View plan |
| 2 Gig | Starting at $95.00/mo. | 2 Gbps | 2 Gbps | View plan |
| 3 Gig | Starting at $100.00/mo. | 3 Gbps | 3 Gbps | View plan |
| 8 Gig | Starting at $150.00/mo. | 8 Gbps | 8 Gbps | View plan |
Data effective as of publish date. Offers and availability may vary by location and are subject to change.
* Limited availability. Service rate in select locations only. Taxes and fees apply. New Quantum Fiber Customers Only.
Price for Life: Offer available to new and existing customers located in qualifying markets and cannot be combined with other promotions or offers. Offer not available with Instant Internet service, Instant 360 WiFi service, or at bulk service properties. Limited time offer.
Quantum’s 500 Mbps plan is a great starter speed for most households, and you’ll have enough bandwidth for family Netflix nights or work assignments. With 500 Mbps upload speeds, sputtering Zoom calls and lengthy Google Drive transfer times will be a problem of the past. And starting at only $50 per month, Quantum’s 500 Mbps plan is more budget-friendly than most fiber providers.
Quantum’s 940 Mbps plan costs a bit more than its 500 Mbps plan, but you’ll get much faster download and upload speeds. This plan works best if your household has heavy internet users who regularly download large games or upload files for work.
Quantum’s plans also come with unlimited data, no-contract pricing, and a Price for Life guarantee. No-contract service means you can cancel your internet plan at any time without extra fees, and Price for Life entails that your price won’t increase after a year—or ever. We’re huge fans of Quantum’s flat-rate pricing approach, which has become increasingly popular among fiber internet providers.
Pro tip: Past Quantum Fiber deals have included a free combo modem/router and mesh Wi-Fi hardware. Plus, all Quantum Fiber plans have a Price for Life guarantee. However, Quantum doesn’t necessarily have bonuses like subscription and plan discounts you’d find on other providers. Check out our main internet deals page for more of this month’s best internet deals.
Quantum Fiber has great performance, reliable internet
| Test | Score |
|---|---|
| Internet reliability approval rating | 79% approval |
| Internet speed approval rating | 88% approval |
Quantum Fiber’s network is generally newer compared to old cable and DSL providers—it’s a mix between CenturyLink’s existing fiber network and new buildouts—and this benefit can clearly be seen in our internet quality research. More than 79% of CableTV.com survey respondents were highly satisfied with Quantum’s reliability (third overall) and 88% of respondents felt the same about Quantum’s internet speeds (second overall)—you’ll get the speed you’re paying for with Quantum, and it’ll rarely go down.
For comparison, Quantum’s scores were only a hair behind competitors like Google Fiber and Midwest-based Metronet. Quantum also soundly beat cable and fiber internet competitors including Verizon Fios, AT&T, and Spectrum.
Quantum Fiber features
Quantum’s internet plans are great, but the ISP’s other areas require a little more explanation. Here’s everything else you need to know about Quantum.
Quantum Fiber availability
Understanding Quantum Fiber’s availability requires a quick bit of background. Quantum Fiber is a CenturyLink sister company that offers fiber internet services. CenturyLink still offers fiber internet service, but at the moment, parent company Lumen is working to fully separate its internet services between Quantum (for fiber internet) and CenturyLink (for DSL internet).
Currently, Quantum Fiber is available in the following states:
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Quantum’s already completed this migration in many states. During our research, we checked old CenturyLink addresses in Colorado and Washington and got redirected to Quantum Fiber’s purchase prompt.
In practice, nothing separates Quantum and CenturyLink’s fiber plans. Both companies have the same internet plans, and CenturyLink has been migrating its fiber internet customers over to Quantum. That said, you’re not alone if you’re confused about the difference between CenturyLink and Quantum, but Lumen will eventually make this distinction moot.
Quantum Fiber equipment fees
If your address already has a Quantum Fiber hookup, you won’t have to pay an installation fee. But Quantum could be pricier if the ISP needs to do a new installation.
Quantum will cover up to $1,500 in installation costs, and the ISP says most jobs should cost less than $2,000. In these scenarios, you’ll get a full installation quote from Quantum before you choose to sign up for service.
For standard installations, you can rent a combo modem/wireless router for $15 per month on Quantum’s 500 Mbps plan. If you upgrade to the 940 Mbps plan, you can get it for free (it normally costs $200) or choose to use your equipment. We suggest buying your own wireless router instead of renting one since you’ll save on monthly rental fees.
What do real Quantum Fiber customers think about Quantum internet?
As part of CableTV.com’s annual Internet Customer Satisfaction Survey, we talked to thousands of real-life internet customers to see how they felt about their internet providers. Quantum Fiber’s top-ten finish in overall satisfaction was buoyed by its flat-rate pricing, effective customer service team, and strong internet network.
- 72% of Quantum Fiber customers felt that Quantum fully met their expectations as an internet provider.
- 74% of Quantum customers felt that Quantum’s prices were a good value compared to its internet quality.
- 74% of customers would recommend Quantum to someone else.
Quantum Fiber was really easy to set up. They have been great to work with. Our internet went down and their customer service was amazing and helped us fix it right away. Ever since, we haven't had any problems.
Quantum Fiber FAQ
Is Quantum Fiber the same as CenturyLink?
Quantum Fiber and CenturyLink are separate brands owned by Lumen. In the future, CenturyLink will offer only DSL services, and Quantum will offer fiber internet plans.
Does Quantum Fiber have unlimited data?
Quantum Fiber has unlimited data on all of its fiber internet plans.
What are the pros and cons of Quantum Fiber?
Quantum Fiber’s pricing is excellent and it offers stellar customer service. However, you’ll need to find another provider for TV service, and Quantum offers little in the way of big deals.
What is Quantum Fiber?
Quantum Fiber is a fiber internet provider that offers residential and commercial internet plans throughout the US.
How much does Quantum Fiber actually cost?
Quantum Fiber internet plans start at $45 per month. Quantum’s Price for Life guarantee means that you won’t deal with price increases for as long as you maintain a Quantum Fiber internet plan.
Is Quantum Fiber CenturyLink?
Quantum Fiber offers the same fiber internet services as CenturyLink. The company that owns Quantum Fiber is Lumen, which also owns CenturyLink.
Is Quantum Fiber good?
Quantum Fiber is a good internet provider thanks to its affordable prices and fast internet speeds.
Why you should trust us
To evaluate Quantum Fiber internet, we spent months analyzing its availability, pricing, internet plans, and reputation using resources like our annual internet customer satisfaction survey.
We also compared Quantum to cable providers, including Xfinity, AT&T, and Spectrum, to see how the ISP stacked up versus the competition.
For more information on our methodology, check out our How We Rank page.
