AT&T vs. CenturyLink Internet Providers Compared

Industry-leading fiber internet speeds and strong reliability from AT&T

AT&T Fiber can support all your data-intensive internet activities, now and in the future. AT&T continues to lead the industry with multi-gigabit (5000 Mbps) internet speeds available in select areas and more speed on the way. When you add no contracts, no equipment fees, no data caps, and a reputation for reliable customer service, AT&T is a superior choice for all-fiber internet. In areas where only AT&T copper service is available, customers should also check other options and compare speeds and pricing.

AT&T Fiber internet is affordably priced given its high quality and dependability

AT&T offers reasonable fiber pricing with first-tier fiber internet plans currently starting around $55/month. AT&T won’t always offer you the lowest price for fiber in your area. But AT&T will offer you the low end of industry standard prices. For those prices, you’ll often get higher internet speeds from AT&T than from the competition. You will get good value for the internet speed you’re buying. AT&T Fiber’s advantage is that their fiber connections give you equal download and upload speeds. So, even if AT&T Fiber and a cable provider offer you the same price for a speed they both call “300 Mbps,” you will not be getting the same speeds from fiber and cable providers. All cable internet may have high download speeds, but has much slower upload speeds (usually around 10-20 Mbps). AT&T Fiber will give you the same upload speed as your download speed for your monthly price. Having upload speed equal to your download speed can make a big difference for real-time activities such as video streaming and gaming. Fiber also offers low latency, which you’ll see in a ping test. So overall, you are getting more for your money with a fiber internet plan, even when fiber and cable plans advertise the same prices and download speeds. There’s one drawback to AT&T’s pricing. AT&T’s copper-wired service (DSL/ IPBB) is priced at around the same as its first-tier fiber plan. This price is higher by Mbps given that copper service is much slower and less reliable than fiber. We hope AT&T will consider lowering the price of its copper service to give better value to DSL/IPBB customers.

CenturyLink DSL charges high prices for widely varying speeds

DSL is not one of the faster internet technologies on the market. Usually, DSL customers sign up for their plans because there is no cable or fiber internet in their areas. And that can be a valid choice if DSL will give you better performance than satellite internet, though you have to evaluate that on a case-by-case basis. Many times, DSL plans are good options for customers in rural areas. CenturyLink plans are no exception to the general qualities of DSL. You will generally pay around $50 for your DSL package, whether you get 10 Mbps download speed or whether you are lucky enough to get 100 Mbps download speed (very unusual for DSL and true for only 28% of CenturyLink DSL customers) [2]. In better news, CenturyLink’s DSL plans are free of data caps. So, despite the fact that CenturyLink’s DSL prices are high for the speeds, at least you won’t have unexpected data overage charges.

Decades of growth give AT&T reliable infrastructure and sophisticated operations

As the third-largest ISP in the United States, AT&T has massive corporate size and history on its side. AT&T’s home internet serves over 100 metro areas in 22 states, with over 19 million fiber internet passings [1] [2]. AT&T provides strong infrastructure and tech support. With 99% reliability for your internet connection, AT&T Fiber service is less likely to be disrupted by outages or slowdowns than many other internet providers [3]. AT&T’s reliability rating is higher than some other ISPs because AT&T customers do not have to work with internet data caps. Many internet service providers have soft data caps. When you hit your data allowance for the month, your ISP will throttle your internet. Your internet speed will slow down to the point that only the simplest email tasks will be possible. You won’t be able to do complex web browsing, streaming, or your other usual internet tasks. In other words, your internet will become unreliable when you hit the limits of your data caps. AT&T and other providers with no data caps give you peace of mind because you won’t suddenly lose most of your internet functionality in the third week of the month. Unlimited data is a major bonus for your internet connection’s reliability.

“But it was so fast in the ‘90s!” DSL shows its age in many locations

CenturyLink DSL uses one of the oldest internet technologies: copper cables originally designed as telephone wire. Only 65% of CenturyLink’s DSL achieves speeds over 25 Mbps, or what the FCC calls “high-speed” internet.  85% of the CenturyLink DSL network is above 10 Mbps. That means a good 15% of CenturyLink’s DSL customers have very slow connections below 10 Mbps [3]. If DSL gives you under 10 Mbps download speed and only 1 Mbps upload speed, you won’t be able to play real-time games online with any kind of reliability. You may also experience glitching if multiple people stream or videoconference at the same time. To be fair, some DSL connections will give you faster speeds. 28% of CenturyLink customers will get 100 Mbps download, and that speed will considerably improve your performance. But if you are considering ordering CenturyLink DSL, make sure you know what your other options are. You can test your actual speed here to see what kind of performance your current internet connection is giving you.

AT&T offers no equipment fees, optional self-installation, extra cybersecurity features

As long as you have AT&T internet service, you will also get to use an internet gateway at no charge [4]. (This gateway is a modem/router combo known as AT&T Smart Wi-Fi.) Your plan may also include a free Wi-Fi extender depending on your terms. If you order AT&T Fiber, technicians will install an ONT (optical network terminal) and a fiber jack or ethernet jack. Professional installation from AT&T will cost you $99 for either copper internet or fiber installation. If you are planning to order copper-based internet (DSL/IPBB) and there is already a dual-port phone jack in your home, AT&T can mail you a self-installation kit at no charge. You can even self-install fiber internet if you are comfortable with a wall installation and following technical instructions. AT&T customers have access to the AT&T ActiveArmor internet security app. The app will block fraud calls and guard risky Wi-Fi connections. For a small extra monthly charge, ActiveArmor offers advanced functions such as Identity Monitoring and Reverse Number Lookup. AT&T also offers a Smart Home Manager app to manage your Wi-Fi and all smart home devices and check for outages.

Option to use your own modem/router or self-install your connection

With the CenturyLink DSL plan, there’s a $15 a month modem/router rental fee, which is on the high end of equipment fees. You can avoid the modem/router fee by buying your own. And that might not be a bad plan, given that you will make up the price of a typical modem/router in a year or less. You may have to pay for a professional installation, which is usually a one-time fee of $99. Fortunately, in many places you may also have the option to self-install for $15. It depends whether there is still a working CenturyLink DSL connection in your home.

AT&T Customer Service provides 24/7 tech support and ranks #1

AT&T has a robust customer support framework, including community forums, live chat, and phone assistance. Tech support is available 24/7, which can be a lifesaver if you work or study from home. Billing and account support are available from 7 AM to 9 PM CT Monday through Friday, and 8 AM to 9 PM Saturday. Those Saturday hours are especially valuable if you work Monday to Friday and can’t squeeze in personal business during the week. In 2023, AT&T ranked#1 for Customer Satisfaction in Residential Internet Service (North Central and West regions) with J.D. Power and Associates [5]. AT&T also ranked #2 in the South region.

CenturyLink runs below average in some satisfaction rankings

CenturyLink’s customer satisfaction rankings vary widely by region on the J.D. Power survey [3]. In the North Central region, CenturyLink ranks above average. In the West, CenturyLink ranks slightly below average, and in the South, CenturyLink is second from last in customer satisfaction. The North Central and West regions where CenturyLink/Quantum Fiber rank higher are also the regions in which Quantum Fiber provides most of its fiber access. The South only includes one state with fiber internet coverage, which means most of that low customer satisfaction rating is based on CenturyLink’s DSL. The American Customer Satisfaction Index confirms that split in results by dividing “CenturyLink” specifically into fiber and DSL. Fiber ranks 16 points higher than the DSL service [4]. For CenturyLink and Quantum Fiber, these customer satisfaction rankings tell the story clearly. CenturyLink’s DSL service is not as likely to please you. However, be aware that there is a certain amount of online cross-marketing between the two companies. So, if CenturyLink says they are able to sell you “fiber” as they seem to imply on their homepage, all that means is that they’re going to send you to a Quantum Fiber plan if your address has fiber availability.