The Best DSL Internet

Finding the best DSL internet probably won’t involve any shopping around. The vast majority of people only have one provider that covers their area, and the speeds available to you will depend on your specific address. We leveraged data from BroadbandNow and the Federal Communications Commission to find out what it’s like to be a customer with the biggest DSL providers in the U.S., so you’ll know what to expect from yours.

The 5 best DSL Internet providers

Best Overall Customer Experience
AT&T Internet
AT&T Internet
The biggest name in the game, ATT has speeds high enough for regular surfing, an impressive customer service track record, and a transparent fee schedule.
Pros
Fast enough for most
Exceptional transparency
Cons
Not fast enough for an active family
Data limit

Why we chose it

Fast enough for most

A customer service rep told us that AT&T’s DSL plans can reach download speeds between 1–10 Mbps, but FCC data tells us that most customers are topping out at 6-Mbps downloads. That max speed is enough for two users to be surfing the web at once, but both popular upload speeds are well below the threshold recommended by BroadbandNow if you’ll be doing a lot of video chatting.

Exceptional transparency

AT&T is the biggest DSL provider out there, offering coverage in 21 states to about 120 million people. And it’s customers can count themselves lucky because unlike every other provider, AT&T offers clear language about fees, including the actual dollar amounts that you can expect to pay for activation, installation, service repair dispatch, and late payments.

Points to consider

Not fast enough for an active family

AT&T’s most popular plans are great for an individual user that plans on streaming Netflix and shooting off emails, but not ideal for anyone who plans on lots of upload-heavy activity (cloud interaction, video chat) or a big family of users with multiple devices.

Data limit

If AT&T’s your DSL option, keep in mind it’s one of three big providers that enforce a data limit. If the words “data limit” bring back sad memories of cell phone overage fees, take heart. According to AT&T’s data usage calculator, one terabyte is enough to send and receive 40,000 emails, stream Kendrick Lamar’s new album for 8,500 hours, surf the web for 2,000 hours, post 5,600 selfies on social media, stream every single episode of Seinfeld’s nine seasons in high definition, spend 1,650 hours online gaming … and still have plenty of room left over. Also, you have the option of purchasing unlimited data for an extra $30 per month.

Best Customer Service Record
Verizon
Verizon
Feel free to surf with no contract and a soaring data cap.
Pros
Contract-free
Sky-high data limit
Stellar customer service
Cons
Must commit to a phone plan
Slowest speeds

Why we chose it

Contract-free

Verizon doesn’t require signing a contract, leaving users free to move homes and/or providers without penalty. No contracts equals no commitment: Test drive Verizon’s DSL internet, and if it’s speeds and rates work for you, continue doing business with them at will.

Sky-high data limit

If you think of data limits as a ceiling lowered down on your internet use, Verizon’s is vaulted and lofty. Enough room for the best Christmas tree on the block. With a 1.5 terabyte data limit, even the most dedicated Netflix bingers won’t be able to brush the top.

Stellar customer service

Verizon received the highest J.D. Power score for customer service possible: five out of five stars. While Verizon FiOS — its rarely available fiber option that dominates its website — is included in that rating, our experiences proved Verizon’s DSL customer service is just as helpful and warm as AT&T’s.

Points to consider

Must commit to a phone plan

For the Northeasterners for whom Verizon is most likely an option, keep in mind that you’ll have to order your internet with a side of phone service. CenturyLink only sells its DSL in packs of two, as well.

Slowest speeds

The tortoise of big DSL providers, Verizon offers the slowest download speeds of the bunch. That makes it an unlikely choice for anyone prone to Netflix binges, but no contracts mean no commitment if you want to give it a try. It’s plenty of bandwidth for one or two light users sending emails and checking Facebook, but it’s stingy compared to other providers’ popular plans.

That said, the FCC found that Verizon’s DSL median download speeds average at 121 percent of what’s advertised — the highest percentage of any of the five biggest providers. And its upload speeds are more impressive than its download speeds, too, with an unheard-of 5 Mbps option that will be particularly attractive to YouTuber contributors.

No Data Caps
Frontier Communications
Frontier
Solid speeds and service, but a lengthy contract.
Pros
No data caps
Fast enough for most
Straightforward billing
Cons
Underwhelming customer service
Lengthy contract

Why we chose it

No data caps

Frontier’s unlimited data means you can stream HD video to your heart's content. Your data usage will be curtailed somewhat by the average speeds, but you’ll never have to worry about overage fees.

Fast enough for most

Frontier's popular speeds are average, but provide enough bandwidth for the sort of activities you can expect on DSL internet (basic internet use for a few users, streaming video for one or two).

Straightforward billing

We were impressed to find that Frontier offers a resource for understanding a bill on its site. It didn’t get specific about possible fees in its terms and conditions for DSL users, but this sample bill for residential services did give us an idea of what’s typical:

Points to consider

Underwhelming customer service

Frontier scores reliably poor for customer service, with some regional exceptions for “cost of service” and “billing.” However, when we took advantage of the chat feature online, we found the conversation easy enough and the representative helpful.

Lengthy contract

We like that you don’t have to commit to a phone plan to take advantage of Frontier DSL. But there’s a catch: You’re looking at a two-year contract regardless of the plan you choose, the longest commitment of any of the big providers.

For that reason, we can only recommend Frontier if you’re established in your residence and don’t foresee another (possibly faster or cheaper) provider coming to your area in the near future. The issue of early termination fees is unclear with Frontier, like the fees with almost every other provider. The information we found says it should stay under $200 but “depends on the plan you have.”

Most Flexible Service
Windstream
Windstream
A solid option thanks to no-contract, no-caps flexibility and generous speeds.
Pros
Flexibility for customers
The speed you need
Cons
Loses points for transparency
Slower upload speeds

Why we chose it

Flexibility for customers

Windstream doesn’t have contracts, phone plan requirements, or data caps, which means you’re free to use your internet however often and for however long you choose. Out of all the top providers, this arrangement left us feeling most “no strings attached.”

The speed you need

Windstream’s plans have download speeds that vary enough to make most users happy, and its most popular plans include one of the fastest DSL download speeds we encountered. That 12-Mbps option is good news if you like to stream “Orange is the New Black” while your roommate watches Ken Burns’ latest doc series.

Points to consider

Loses points for transparency

One place we ran into trouble with Windstream was transparency surrounding speeds and fees. The only information we could find on the latter was buried in its terms and conditions, featuring sentences like “As a convenience to you, Company may include charges for third-party services on your monthly bill.” That vagueness proved typical of Windstream. But as with other providers, we didn’t run into any issues getting quick help via online chat though J.D. Power gives it a low score overall for customer service.

Slower upload speeds

Windstream’s upload speeds leave a lot to be desired: They’re generally below the threshold of recommended video call bandwidth, and we could only find reports of one popular upload speed, which made us skeptical that there are any other options at all.

How to choose a DSL Internet provider

Evaluate your speed options

DSL is one of the most widely available types of internet in the U.S., covering 90 percent of the country. While you don’t have much choice between providers (the FCC reports that only four percent of people with access to DSL have a choice between two providers, and a miniscule 0.2 percent had access to three), you do have choice when it comes to speeds.

Once you have your search narrowed down to the provider or providers in your zip code, you can go to individual provider websites and type in your specific address to see available speed tiers. How much speed does your household need? This chart from the FCC should help:

FCC-for-DSL-Internet

Prep your home for DSL

At minimum, a DSL customer needs a DSL modem. If you want internet to be accessible throughout the house wirelessly, a router is also necessary. Sometimes, the router and modem can be one device.

If you plan on connecting anything besides your DSL modem to your phone jacks, you’ll need to know about filters and splitters:

  • Filters: Filter DSL signals out from your phone jack. Plug a filter into your phone jack, then your phone into the filter and you won’t have any problems with DSL signal interference. You won’t need a filter for the phone jack where you plug in your DSL modem.
  • Splitters: Split one phone jack into two jacks, one for DSL and one for phone. This way, you can still use both out of one jack.

There’s another type of splitter that a technician might install for you, which will split the DSL signal for your phone line apart from the signal for your DSL at a sort of “origin point” (network interface device, or NID) leaving you with no work to do on your end.

If a technician hasn’t installed a splitter at your NID or you aren’t going to use a landline alongside your DSL, you won’t need to worry about filters or splitters. Your phone jacks will already work for your DSL.

Test your speeds

If you feel like your internet is running slow, a low measurement of your actual speed is a good piece of evidence to present to your provider. Google “[your provider’s name] speed test” and you’ll likely be pointed to a test that’s specific to your ISP. But you can test the connection speed of any provider on sites like measurementlab.net and speedtest.net.

Consider switching to cable or fiber if you can

DSL isn’t going to win any awards for speed. The most popular plans average max download speeds of 13 Mbps, and maximum upload speeds of 2.5 Mbps. Those speeds are less than what other technologies (like cable) can offer, and available DSL speeds are increasing at a slower rate than cable, too. Here’s how the different technologies typically stack up:

Fiber internet and VDSL offer substantially faster speeds than what's shown here, but we excluded them from this chart due to their limited availability.

DSL’s slow upload speeds may become an issue for users who plan on uploading videos to the internet, video chatting, storing files in the cloud, hardcore gaming — any upload-heavy online activity. Zimmer, Director of Content for BroadbandNow, told us that users who need high upload speeds would be happiest with cable or fiber, but most people can get plenty of bandwidth from DSL.

The average download speeds of 13 Mbps are enough for streaming HD video and even online gaming, as long as you don’t have a whole house full of people trying to do everything at the same time.

DSL Internet FAQs

What is DSL?

DSL, or Digital Subscriber Line, internet uses existing copper telephone wires to get data back and forth between your computer and the “backbone” of the internet. Unlike traditional dial-up, information is transmitted at a frequency separate from the one used for voice calls — making it a less intrusive, much speedier option. That’s also why you don’t have to wait for people to get off the phone to use the internet.

There are several types of DSL, but the one available to most residential customers is ADSL, or Asymmetric DSL. The term “Asymmetric” comes from its uneven upload and download speeds — as with cable, download speeds are generally faster. ADSL plans can reach 24 Mbps for downloading, and about 3 Mbps for uploading. That’s enough bandwidth for one person to stream “Atlanta” on Hulu while another Skypes their long-distance partner. And because DSL is a direct line, it bypasses the bandwidth congestion issues faced by cable users when their neighbors are online at the same time.

What are Mbps?

Megabits per second is a measurement of how quickly your internet is transferring Megabits of data. If you ever see the confusingly similar abbreviation MBps, it’s referring to Megabytes per second, which is 8x a Megabit.

Is DSL best for businesses?

According to Broadband.gov, Symmetric DSL allows for even upload and download speeds, and is often used in businesses that require activities like video conferencing. High and Very High data rate DSL (HDSL and VDSL, respectively) are faster forms of DSL that are also available to businesses.

FCC data from 2016 shows that only 0.7 percent of developed residential blocks had access to SDSL last year, but if you’re looking to outfit your business with DSL or any other form of internet, check out our review of the best business internet service providers.

What about local DSL providers?

We excluded regional providers due to their limited availability. But what regional DSL companies lack in coverage, they can make up for in service. Take, for instance, Internet Nebraska Corporation. It provides coverage to 76 percent of Nebraska, offering service to 1.4 million people.

While most providers we looked into had shockingly low customer approval scores on Broadband Now — usually dipping somewhere between 30 and 40 percent of customers who would recommend it to other people — Internet Nebraska managed to earn a gleaming 88.2 percent. If one of those providers is an option for you, don’t dismiss it — take a closer to look to see if they offer speeds you need and reputable customer service.

The best DSL Internet: Summed up

AT&T
Verizon
CenturyLink
Frontier
Windstream
The Best
Overall Customer Experience
Customer Service Record
Plan Options
No Data Caps
Flexible Service
States Serviced
21
11
39
38
39
Actual Speeds
81% of advertised
121% of advertised
81% of advertised
95% of advertised
87% of advertised
Contract Length
1 year
none
1 month
2 years
None
Data Cap
1 TB
1.5 TB
300–600GB
None
None
J.D. Power Customer Service Rating
4.3/5
5/5
3/5
2/5
N/A
Requires Phone Plan