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CenturyLink vs. Sparklight vs. Ziply Fiber Internet plan comparison


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Researched by
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Reviewed by
Bri FieldAssigning Editor
Updated 4/6/23

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CenturyLink brand
Staff rating
4.0
Customer rating
4.0
(76)

  • Plans starting at $30.00
  • Download speeds up to 940Mb
Sparklight
Staff rating
3.2
Customer rating
0.0
(0)

  • Plans starting at $35.00
  • Download speeds up to 940 Mbps
Ziply Fiber brand
Staff rating
4.2
Customer rating
3.0
(2)

  • Plans starting at $20.00
  • Download speeds up to 5 Gb
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CenturyLink brand
Staff rating
4.0

Great fiber service, if you can get it

CenturyLink offers excellent fiber internet, but it’s available only in limited markets. If you can't get fiber, you may be able to get a DSL connection but you'll pay nearly as much.

What we like

  • Unlimited data across all plans
  • Fast fiber connections in select markets
  • No contracts
What we dislike

  • Limited fiber availability
  • Much slower DSL internet speeds
  • Below-average customer service
Savings tip: CenturyLink often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
Sparklight
Staff rating
3.2

No-contract cable internet worth considering in areas without fiber

Sparklight, formerly known as Cable One, is a cable internet provider primarily serving suburbs and rural areas in over a dozen states. Its no-contract plans offer good download speeds to areas fiber doesn’t often reach, but its data caps aren’t ideal.

What we like

  • No contracts
  • Simple pricing
  • 30-day money-back guarantee
What we dislike

  • Data caps for most plans
  • Expensive Gig plan
Savings tip: Sparklight often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
Ziply Fiber brand
Staff rating
4.2

Fast, reliable fiber for larger households and power users

Ziply offers great pricing for medium-to-large households and absurdly fast internet for power users. This provider has a few quirks, like hidden contracts and no self-setup, but if those don’t bother you, Ziply is a solid internet service provider in the Northwestern US.

What we like

  • Low prices
  • Fast internet
What we dislike

  • Hidden contracts with promotional pricing
  • No self-setup
Savings tip: Ziply Fiber often has sign-up promotions for first-time customers. Call to ask a rep about current deals and discounts.
Check deals
CenturyLink brand
Value
4.0
Great fiber value meets high-cost, low-performance DSL plans

CenturyLink offers two types of plans, depending on your location. The more common option is DSL, which is relatively slow and offers inconsistent speeds. The other option is fiber, which is extremely fast and reliable.

Generally speaking, the DSL options are not a great value. The price is reasonable, but the speeds mean you’re likely to get more for your money elsewhere (this is true for many DSL providers). The fiber plans are a much better value—they offer much more speed for the money than CenturyLink’s DSL plans and are competitive with other providers’ fiber offerings. In fact, CenturyLink's 940 Mbps plan costs a little more than half of the national benchmark for similar plans. (1) We highly recommend CenturyLink fiber if you have it available.

Pricing details vary by location. Visit
CenturyLink's website
or call 1-833-804-2792 to speak with a rep.
See pricing
Sparklight
Value
2.5
Sparklight’s plans are a decent value for casual users without access to fiber

Sparklight’s no-contract cable internet plans are generally a decent value compared to other providers available in the communities the company serves. While you might not be able to get fiber in these areas, you’re likely to find DSL, satellite, or other cable internet service providers (ISPs). The speed you get for the price is comparable to other cable providers or a bit cheaper, and the performance surpasses DSL and satellite. All of this means Sparklight’s plans are worth strongly considering if your address is in one of its service areas.

We recommend choosing a Sparklight plan with at least 200 Mbps of download speed, but ideally more if it’s in your budget. Since Sparklight is a cable provider, upload speeds tend to be far below the download speeds. Upload speeds increase with each pricing tier, so if you work from home and have multiple connected devices you may want to pick one of the more expensive plans for seamless video calls.

All of Sparklight’s plans have data caps, except for its most expensive Gig plan. Data caps are typical for cable providers. While some competitors offer data caps over 1 TB for all of their plans, Sparklight’s plans have data caps that range from 100 GB to 1.5 TB. You can get 100 GB blocks of additional data for $10 during months when you need it, or you can upgrade to unlimited data with any plan for an extra $30/month. When calculating your needs, consider that the average person uses 536 GB of data per month (1).

The Gig plan offers the most data for your dollar and the highest speeds, but it’s more expensive than fiber plans with comparable download speeds, at least in some of the service areas. If you don’t want to pay top dollar, the Internet 300 and 500 plans also offer good speeds and high enough data caps for the needs of most households. We wouldn’t recommend the Internet 25 plan because its low speeds and data cap won’t comfortably meet most people’s needs.

Pricing details vary by location. Visit
Sparklight's website
or call 1-877-687-1332 to speak with a rep.
See pricing
Ziply Fiber brand
Value
5.0
Low-cost internet plans—unless you want the fastest speeds possible

Overall, Ziply offers fast fiber internet at great prices. Its slowest plans (50 Mbps and 200 Mbps) are the best value, priced at 25% and 33% of the national benchmark, respectively. (1) Its 1 gig plan is relatively more expensive, but it still comes in under 45% of the national benchmark for similar plans. After introductory pricing ends, your monthly bill will increase by about $20 per month, but you’ll still pay less than average. Plus, you’ll get unlimited data.

If you want the absolute fastest internet possible, Ziply also offers 2- and 5-gig plans, but these come with much higher price tags. A 2-gig plan is nearly double the cost of a 1-gig plan (no bulk discount here), and a 5-gig plan is nearly 4 times the cost! (2) And there’s no introductory pricing for these blazing-fast plans. You’ll also need to spring for your own router (the Ziply one doesn’t support these speeds). 1 gig should be more than enough speed to cover the vast majority of households, so we don’t recommend springing for these plans unless you’re sure you need them.

Pricing details vary by location. Visit
Ziply Fiber's website
or call 1-833-970-0803 to speak with a rep.
See pricing
CenturyLink brand
Performance
4.5
Performance is excellent for areas with fiber access

There’s a performance divide based on the type of service available. The CenturyLink DSL plans can range from 15 to 100 Mbps, which is a wide range. Additionally, 15 Mbps just isn’t great these days. It doesn’t even reach broadband speeds (25 Mbps or more). That said, you shouldn’t have to worry about getting the advertised speed—whatever plan you sign up for, you seem to get what you pay for with CenturyLink.

On the other hand, the fiber plans offer Gigabit speeds (up to 940 Mbps), which is excellent. Additionally, fiber internet offers synchronous download speeds and upload speeds, meaning you can game, video chat, or upload large files just as fast as you binge Netflix. Fiber also tends to be inherently reliable because of the way the technology works—the light signals in fiber optic cables can carry more information over longer distances than coaxial cables. We have no complaints about performance on these plans.

Available speeds vary by location. Call 1-833-804-2792 to speak with a CenturyLink rep or
go to its website.
Sparklight
Performance
4.0
Good download speeds, but data caps hold it back

Sparklight is available in mostly rural and suburban areas where customers probably won’t be able to get fiber internet. This makes Sparklight’s cable internet speeds the best option in some communities that are otherwise served only by DSL or satellite, which can be slow and unreliable. According to a report from Ookla, Sparklight had the highest download speeds among fixed broadband providers in North Dakota and New Mexico. (2)

Sparklight is a fiber-rich cable provider, meaning it delivers service using a mix of fiber and coaxial cables. While it can achieve download speeds of up to 940 Mbps, its upload speeds are much lower than that, reaching 50 Mbps. This is a technical limitation of cable connections that those with fiber connections won’t experience. While this isn’t ideal for households with several people who want to do heavy gaming or take video calls at the same time, Sparklight’s download and upload speeds are generally still sufficient for most households. And for regular browsing and streaming for multiple users, it's just fine. However, the data caps may hold you back if you’re a heavy internet user. Occasional outages and inconsistent speeds do affect service according to customer reports on Downdetector. (3)

Available speeds vary by location. Call 1-877-687-1332 to speak with a Sparklight rep or
go to its website.
Ziply Fiber brand
Performance
5.0
Fast, reliable fiber in most areas

Ziply has a fiber optic network, which is the most reliable kind of infrastructure out there. Fiber also allows for faster speeds than any other kind of internet, including upload speeds that are just as fast as download speeds (AKA symmetrical speed). Unfortunately, Ziply’s 1-gig plan isn’t symmetrical, serving up only 35 Mbps for upload, and that’s a shame. Still, most families will find a symmetrical 200 Mbps connection plenty fast, while high-powered users can opt for a 2- or 5-gig symmetrical plan (though it’ll cost you big).

Other than that, Ziply performs pretty well. It typically uses only 40% of its infrastructure capacity (3), which means you’re less likely to see slowdowns during peak hours. However, Ziply has legacy DSL infrastructure in some rural areas and tends to perform slower than other DSL providers.

Available speeds vary by location. Call 1-833-970-0803 to speak with a Ziply Fiber rep or
go to its website.
CenturyLink brand
Equipment and installation
4.5
A fee for self-installation, but good equipment at a decent price

CenturyLink installation is more or less on par with other providers in terms of installation procedures and costs. If your neighborhood is wired for only DSL with CenturyLink, you can have your internet service set up by a pro for somewhere between $129 and $300 based on the installation requirements. You can alternatively choose to do a self-install for $15.

If you live in an area wired for CenturyLink fiber, your pro installation and equipment rental are free, and you may be able to self-install for free. You could also wrangle unlimited data and an included mesh wireless network if you sign a contract, so be sure to ask. This is about on par with other fiber internet providers.

Find out whether you need a professional to come by or if you can handle setup yourself.

As for equipment, the CenturyLink modem and router are also pretty standard stuff. The company charges around $15 per month for equipment rentals for DSL customers. The gear is nothing to write home about, but it works. You can also buy the modem outright from CenturyLink for up to $200—whether this is a good deal for you depends on how long you plan to have CenturyLink as a provider.

We don’t particularly recommend buying your own router. Both the DSL and fiber services require a modem certified by CenturyLink to function, so you may as well save some money and use the built-in wireless router.

Equipment and installation options can vary widely depending on
CenturyLink plans
available in your area.
View plans
Sparklight
Equipment and installation
3.5
Low equipment costs and simple installation

When you sign up for Sparklight internet service, you can call to schedule professional installation or choose self-installation. Both options are reasonably fast according to customer reviews. Professional installation is typically free and can be scheduled at your convenience. There's technically a $90 professional installation fee, but it is waived as part of a "permanent promotion." Self-installation is free and should take about 15 minutes once you receive your equipment in the mail.

You can choose to purchase your own Sparklight-supported modem or lease a modem from Sparklight for just over $10/month, less than some other providers. The installation cost, activation fee, and any equipment deposits may be waived for qualifying new customers.

Equipment and installation options can vary widely depending on
Sparklight plans
available in your area.
View plans
Ziply Fiber brand
Equipment and installation
4.0
Equipment and installation costs mostly balance each other out

Ziply’s equipment costs can add up. Its router/modem combo is a reasonable $10 per month, but its Whole Home Wi-Fi costs $20 per month. Sometimes, Ziply runs promotions that include Wi-Fi, so keep an eye out for those. Ziply’s Wi-Fi is Wi-Fi 6 technology, which is the best technology available. You can stream up to 12 devices at once (Wi-Fi 5 allows only up to 5). However, Ziply’s router isn’t compatible with its 2- and 5- gig plans. If you want one of these plans, you must BYO router, and not all routers are compatible, so be careful here.

Professional installation is free, which is great because Ziply doesn’t have a self-install option. Technicians will run cables from the street to your home, wire up your house, and set up your Whole Home Wi-Fi. The downside is technicians likely won’t get all this done in a single visit, so it might take a few weeks to get you up and running.

Equipment and installation options can vary widely depending on
Ziply Fiber plans
available in your area.
View plans
CenturyLink brand
Customer experience
3.0
Below-average customer service

CenturyLink consistently scores slightly below average in customer satisfaction (2), largely due to complaints about a lack of responsiveness regarding customer service. The service also gets a lot of complaints from new fiber internet customers, but complaints are very common industry-wide.

CenturyLink hires techs and contractors from around the country, so some inconsistency is expected. It redeems itself slightly, though, with an easy-to-use support page.

The company is expanding and we hear that many new cities will have fiber internet hookups from CenturyLink within the next few years. If you can get only DSL, though, you may have a connection as slow as 3 Mbps or one as fast as 100 Mbps, with huge variation in latency depending on how far you are from the nearest access point.

We like that CenturyLink provides DSL to customers who may have no other option, but we don't recommend the DSL offering if you have access to cable or fiber internet from another provider.

Visit CenturyLink's website
or call 1-833-804-2792 for more information on contracts and money-back guarantees.
Go to provider
Sparklight
Customer experience
3.0
Average customer service and occasional slowdowns and outages

Customer experience with Sparklight is about average compared to other providers. Tech support is available 24/7 by phone or email, and there are plenty of help articles available online. Like most other providers, equipment installation is straightforward whether you have it done professionally or do it yourself.

Common complaints include unplanned outages, inconsistent speeds, and long wait times to reach Sparklight support by phone, according to user reports on Downdetector. (4) If you try Sparklight’s internet service and it doesn’t live up to expectations, the company offers a 30-day money-back guarantee.

Visit Sparklight's website
or call 1-877-687-1332 for more information on contracts and money-back guarantees.
Go to provider
Ziply Fiber brand
Customer experience
3.0
Could be more customer-friendly with more self-help options and better transparency

We love that Ziply provides professional installation for free, but we’re bummed that it doesn’t even offer a self-setup option. Ziply has some great self-help content on its website for troubleshooting or changing out your router later—you just can’t use it to get started. Forcing you to use professional installation also means it takes longer to get started, and that’s tough if you’ve just moved to the area. If you’re not moving, it still means you’ll have to juggle your old service with Ziply installation times to avoid a gap in internet service.

We’re also not a fan of Ziply’s hidden contracts. It advertises no-contract plans, but if you read the fine print, you’ll pay early termination charges if you try to leave before your promotional plan ends. All that said, Ziply’s customer service is decent, and most negative reviews call out the same kinds of issues other providers get: billing disputes. (4)

Visit Ziply Fiber's website
or call 1-833-970-0803 for more information on contracts and money-back guarantees.
Go to provider
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CenturyLink
3.9
(76)
5 Star
34%
4 Star
41%
3 Star
16%
2 Star
8%
1 Star
1%
J
Jessicafrom Greenbrier, AR
CenturyLink Customer for 1+ years
Reviewed on: 6-17-2022
It is reliable and always works for us when we Need to do multiple things at once. It is good service. With good workers.
D
Davidfrom Colorado Springs, CO
CenturyLink Customer for 1+ years
Reviewed on: 6-17-2022
Over all good service it does however bog down at some points
J
Johnfrom Minneapolis, MN
CenturyLink Customer for 8+ years
Reviewed on: 6-17-2022
It's too slow, I don't have the capability for fast internet,
R
Ronikkafrom Sidney, MT
CenturyLink Customer for 1+ years
Reviewed on: 6-17-2022
Setting up was a pain but once on the board great service and great rate.
Sparklight
0.0
(0)
5 Star
0%
4 Star
0%
3 Star
0%
2 Star
0%
1 Star
0%
Ziply Fiber
3.0
(2)
5 Star
0%
4 Star
0%
3 Star
100%
2 Star
0%
1 Star
0%
R
Rowdyfrom Coos Bay , OR
Ziply Fiber Customer for Less than a year
Reviewed on: 11-21-2022
I love the service. The biggest problem is I signed up with the acp plan and every month they keep sending me a bill. The service is only 20 bucks a month and acp covers up to 30 dollars.
M
Michaelfrom Hillsboro, OR
Ziply Fiber Customer for 1+ years
Reviewed on: 6-17-2022
Price was fine, but they are adding charges all the time. They need to make sure the customer feels taken care of. The last time we were on the phone, they made it seem like it was our fault when their lines were faulty. And they didn't offer a break or a credit for the downtime.
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Endnotes and sources
1. "Broadband Insights Report (OVBI)," OpenVault. Accessed August 17, 2022.2. "Internet Service Providers," ACSI. Accessed Dec. 10, 2022.
Endnotes and sources
1. "Broadband Insights Report (OVBI)," OpenVault. Accessed 17 October 2022.2. “Here’s Where Smaller ISPs Are Blazing Ahead in the United States,” Ookla. Accessed 8 July 2022.3. “Sparklight outage or service down?,” Downdetector. Accessed 8 July 2022.4. “Sparklight outage or service down?,” Downdetector. Accessed 8 July 2022.
Endnotes and sources
1. “2022 Urban Rate Survey – Fixed Broadband Service,” FCC. Accessed 12 December 2022.2. "Satisfy Your Need for Speed," Ziply Fiber. Accessed 12 December 2022.3. "Why Choose Fiber?," Ziply Fiber. Accessed 12 December 2022.4. "Ziply Fiber Customer Reviews," Better Busines Bureau. Accessed 12 December 2022.