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CenturyLink Internet Speed Test
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CenturyLink Internet speeds

CenturyLink is a notable DSL and fiber internet provider in 16 states. In Reviews.org’s Fastest Internet Provider report, CenturyLink comes in at number 10 with an average download speed of 105.53Mbps and an average upload speed of 97.36Mbps.

CenturyLink’s fiber internet delivers symmetrical internet speeds. Fiber is fast, reliable, and did we mention fast? CenturyLink offers fiber internet plans with advertised speeds that range from 500Mbps to 940Mbps, although you should expect much slower speeds from a DSL connection. Our rule of thumb: If there’s fiber, get the fiber.

We determined in our CenturyLink review that its internet services are pretty solid for customers, with an overall speed and reliability score of 3.5/5.0.

CenturyLink, Lumen, and Quantum Fiber

In 2020, CenturyLink rebranded as Lumen. It still calls some of its internet service CenturyLink, but it also split off some fiber service into Quantum. This is not to be confused with T-Mobile’s newest acquisition of Lumos, T-Mobile’s new fiber partner. 

CenturyLink Internet speed by the numbers
Centurylink
3.7 out of 5 stars
3.7
  • CenturyLink advertised download speeds: 140–940Mbps
  • CenturyLink average download speed: 105Mbps
  • CenturyLink average upload speed: 97Mbps
  • CenturyLink average latency:  52Mbps
  • Total tests: 52,146

Top 5 cities with the fastest CenturyLink internet speeds

CenturyLink offers services in 16 states, grouped mostly on the West Coast, some in the Midwest, and only Florida on the East Coast. According to federal broadband data, CenturyLink's DSL internet reaches 9% coverage throughout the United States, while its fiber internet reaches just over 2% of American households.

Some of CenturyLink’s top cities include:

Not sure if you’re getting fast enough internet speeds from CenturyLink? You may be able to find other options in your area. Run a search with your zip code below.

CenturyLink customer internet speeds

While speeds aren’t fast everywhere, most customers are still likely to get adequate speeds from CenturyLink where they live.

I recently spoke to three different CenturyLink customers who have used its fiber and cable internet services.

“I think the speeds are good,” says Cai Crawford, a coworker who lives in South Jordan, Utah, describing his 500Mbps plan. He also admits, “There have been times where it’s not always the fastest.”

On the other hand, Samantha H., a West Jordan, Utah, resident, who had the 940 Fiber plan, saw speeds stay around 600Mbps download and 250Mbps upload. “Speeds were always falling short,” she says.

Alternatively, a CenturyLink rep (asking to remain anonymous) located in Idaho uses the 40Mbps DSL option to work from home. “I run 36–38 wireless. 40 when hardwired,” he shares about running regular speed tests. Overall, he tells me he hasn’t had any issues. It’s possible that a CenturyLink rep wants to make the DSL plan look good, but it could also be true that the DSL internet option is reliable.

If you live in a rural area, CenturyLink DSL is one of our honorable mentions in best rural internet providers of 2025. For a flat rate of $55 per month, its up to 140Mbps DSL plan is a great deal.

Here’s an example speed test, thanks to Cai:

Cai says he “felt like a winner seeing the number go so high,” since he thinks speeds typically stay around 200Mbps to 250Mbps.

Compare CenturyLink to other major internet providers

While CenturyLink's fiber connection is an awesome choice for internet customers, you can't get fiber everywhere. Most of CenturyLink's footprint consists of much slower DSL internet, and if you can only get that in your area, you may be better off with a faster alternative. 

Run a search with your zip code below to see what's available in your area. 

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Enter your zip code to see if CenturyLink offers fast internet in your area.

While CenturyLink’s DSL is our editor’s choice for best DSL internet providers, we also recommend Frontier as a great  budget option. It’s a wallet-friendly DSL service available in 29 states. It also offers unlimited data and no contracts (win, win). Frontier has one DSL plan for $64.99 per month, but its download speeds are not guaranteed and depend on your location. Like CenturyLink Fiber, if you can get your hands on Frontier’s Fiber internet, choose it over DSL.

Fiber alternatives

Google Fiber is an obvious alternative to CenturyLink’s Fiber service. While Google Fiber has limited availability, it outranks all the fiber players. We named it our fastest internet provider of 2025, with a fixed plan of $70 per month for 1,000Mbps. (As Cai and Samantha mentioned above, it’s a superb alternative.)

When I explored the federal broadband data, I noticed that Spectrum Fiber also has some overlap with CenturyLink internet. Spectrum offers speeds up to 1,000Mbps, and we recommend its 500Mbps plan at $60 per month.

Solid 5G option

Trying to stay away from lethargic DSL and cable? No fiber in your area? You can find the T-Mobile 5G network in 49 states with its amazingly expansive coverage. According to federal broadband data, it’s available in more than 60% of American households. We recommend its 5G Rely Internet plan with download speeds of 72—245Mbps.

Look over other internet comparison guides to weigh your options:

What’s the best internet speed to get from CenturyLink?

If CenturyLink Fiber is available to you, its 500Mbps plan is probably more than good enough. “It gets the job done,” says Cai, who uses the CenturyLink Fiber 500 plan to occasionally work from home.

Here’s a quick guide to understand what you can do with different internet speeds:

Internet speed capabilities

Internet speed
Recommended # of people
Recommended # of devices
Activities
5—25Mbps1—21—5Casual web browsing, emails, social media, streaming SD video, streaming music
25—50Mbps2—44—7Streaming HD and 4K video, streaming music, online gaming, light working from home
50—100Mbps4—67—10Streaming 4K video, online gaming, working from home, using home security devices
100—500Mbps6+10+Streaming 4K video, online gaming, running a home office, using home security and smart home devices
500—1,000Mbps10+15+Running a home office or creative profession, streaming in 4K, live streaming, online gaming, using home security and smart home devices

As a refresher, here’s what you can do with different internet speeds. Generally, 100Mbps allows you to stream, game, and browse all at the same time.

Which internet plan from CenturyLink should I pick?

If CenturyLink Fiber is not available to you, we stand by our recommendation that you sign up for the fastest CenturyLink DSL speed in your area (and all CenturyLink DSL plans are priced at $55 per month regardless of speed).

It’s also worth noting that while CenturyLink does not offer bundle discounts, it does offer budget-friendly bundle packages. Check out the cheapest CenturyLink internet plans to see which TV and internet bundles offer the best bang for your buck. Specifically, the DIRECTV packages (one of the best satellite TV providers) offers some epic combinations.

CenturyLink also offers phone services (not mobile services). Believe it or not, human beings still have phones that can only be used while they’re at home (a wild concept indeed). So if that’s something you or a loved one is interested in, be sure to check out its bundles that combine phone and TV services.

CenturyLink internet prices and plans

The good news is that none of CenturyLink’s internet plans cost more than $75 (though price hikes can and do happen). If you have questions about a rate increase on your CenturyLink bill, be sure to visit its internet rate increase page to find more information.

Plan
Price
Download speed
Internet type
View plans
Simply Unlimited Internet Up to 140 Mbps$55/mo.*Up to 140 MbpsDSL
Simply Unlimited Fiber Internet Up to 500 Mbps$50/mo.Up to 500 MbpsFiber
Simply Unlimited Fiber Internet Up to 940 Mbps$75/mo.Up to 940 MbpsFiber
* Paperless billing or prepay required. Additional taxes, fees, and surcharges apply. Get the fastest internet speed available at your location (max speed is up to 140 Mbps).
Limited availability. Service and rate in select locations only. Paperless billing required. Taxes and fees apply.

CenturyLink speed test FAQ

How many Mbps does CenturyLink Fiber internet offer?

CenturyLink Fiber internet offers 500Mbps to 940Mbps speeds.

How fast is CenturyLink’s DSL speed?

It has a download speed of up to 140Mbps, but CenturyLink does not guarantee a range of speed. It all depends on your location.

Is CenturyLink fast enough for Netflix?

Yes! Its fiber option goes up to 940Mbps, which is pretty fast. According to our analysis of the speed you need for streaming, you need somewhere from 3Mbps to 25Mbps, probably leaning more toward at least 25Mbps. Its DSL plans should also be sufficient to stream your favorite Netflix picks.

How do I boost my CenturyLink internet speed?

There’s a few things you can do. It could be as simple as upgrading your internet speed or moving the router to a different place in your house. For other tips, check out our in-depth guide.

Is CenturyLink throttling my internet connection?

Maybe. Throttling occurs when a provider literally slows down your internet speed. Based on its Excessive Use Policy, CenturyLink can throttle internet connections based on its 1.0 terabyte monthly data usage limit. Some sites recommend using a VPN to bypass throttling practices. If you want to speak to a CenturyLink customer rep about this issue, use these three tips to make the most out of your phone call or chat.