By
Chris Holmes Staff Writer
Updated

Cox vs. AT&T

Cox and AT&T are two major U.S. internet providers. Cox specializes in cable internet with service in 18 states, while AT&T's focus is on DSL internet, with availability in all 50 states. Both providers also have growing fiber networks, though AT&T's is much larger Cox's, and they're spearheading the move to 5G to boot.

If (like me) you live in a place where AT&T and Cox are your primary internet options, it's helpful to see how the two companies stack up in terms of prices, bundles and reputation.

How we evaluated Cox vs. AT&T
  • Price & value
    We ensured you’re getting the most bang for your buck without sacrificing on the essentials to keep you connected.
  • Speeds & data
    We looked at whether the upload and download speeds were reasonable for the plan price, and flagged if you’re being overcharged for services and data you likely don’t need.
  • Coverage & network reliability
    We evaluated Telcan’s coverage map to see how it stacks up against other ISPs in Canada.
  • Plan extras and perks
    If you get a free modem or streaming subscription, we factored those in relative to the cost of the plan.

You can read more about our detailed methodology below.

Cox vs. AT&T
Provider Speed Cost Coverage Reviews Bundles
Cox
 
 Go
AT&T
Go

Cox vs. AT&T: Internet Speeds


Winner: Cox & AT&T (tie) 

Looking for lightning-fast internet speed? AT&T delivers it via their fiber network, giving customers up to 1Gbps uploads/downloads (where available). If your needs are a bit more modest, AT&T also sells fiber plans that give you 300Mbps—which is still pretty darn fast—for a reasonable $70/month. AT&T's VDSL plans, meanwhile, top out at 100Mbps. 

Cox's fiber network provides up to 2Gbps speeds, but it's available in far fewer places than AT&T's. You'll also find offerings as low as 100Mbps to suit a variety of needs.

It's difficult an outright speed winner here as what you get from these two carriers is contingent on what is available in your area. All in all, you're unlikely to be disappointed with either.

Cost, Data and Value for Money


Winner: Cox 

Monthly Cost

One thing that Cox and AT&T have in common is relatively expensive prices. 

Let's take a look at how each provider's 300Mbps plan compares in price: 

#1
AT&T
AT&T

Internet 300 (Fiber 300Mbps)

  • Fiber 300/300 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$35/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
#2
Cox
Cox

Go Fast

  • Fiber 300/25 Mbps
  • 1280GB Data
$55/mo
for 24 months. Available in select locations

The Cox plan is slightly more expensive than AT&T's while delivering the same speed via an arguably more reliable medium (cable vs. DSL). However, Cox's 500Mbps plan at $80/month is $15 more expensive than AT&T's 500Mbps plan. So price really depends on the speed you need but given that Cox's 300Mbps plan is cheaper, we're going to give the win to Cox here.

Data Allowance

AT&T's DSL plans feature 1,000 Gbps/month data caps, while their fiber plans are data cap-free. But both Cox's cable and fiber internet plans feature a mind-boggling 1.25TB data cap... which may as well be cap-free, as it will be very difficult to use that much data per month. While it's nice not to have to worry about hitting limits, the reality is these caps are so massive you're unlikely to come anywhere close. 

Deals

Both Cox and AT&T offer deals for new customers throughout the year.

Availability: Cox vs. AT&T


Winner: AT&T 
When it comes to sheer ubiquity, AT&T has the edge over Cox, with a massive coverage area that blankets the entire United States. Cox internet service, by contrast, is limited to 19 states. We have to hand this category to AT&T. 

Customer Reviews: Cox vs. AT&T


Winner: Cox and AT&T (tie) 


If online reviews are to be believed, both Cox and AT&T have ample room for improvement (bear in mind, though, that internet providers are among the most consistently complained about entities in the United States). Cox customers gripe about high prices and annoying data limits but by and large appreciate its speed. AT&T customers complain about frequent service outages and slow speeds. 

Given the subjective nature of these customer reviews, it's hard to declare one provider "better" in this category. Once again, we'll declare a draw between Cox and AT&T. 

Bundle Packages: Cox vs AT&T


Winner: AT&T 

Both Cox and AT&T offer a wide assortment of double and triple play bundles (i.e. internet + phone or TV), making them two of the better providers to go with if you plan on signing up for multiple services. Cox's 300Mbps, 500Mbps, 1Gbps, and 2Gbps plans are eligible for bundles that include their Cox Mobile cell phone service.

Since AT&T generally has more bundling options, we'll give them the nod in this category. 

Winner: Cox vs AT&T


Winner: AT&T


AT&T and Cox are pretty similar on value, speed, and customer reviews, while AT&T is our favorite when it comes to bundling options and overall availability. By these metrics, we have to declare AT&T the winner of this shootout. 

Though AT&T wins by the number here, it's hard to definitively declare them the better of the two carriers, since customers in areas that have to choose between VDSL plans from AT&T and cable internet plans from Cox may very well prefer the latter of the two for speed and reliability. 

Cox Internet Plans 

Internet Plans

San Diego CA
#1
Cox
Cox

Go Fast

  • Fiber 300/25 Mbps
  • 1280GB Data
$55/mo
for 24 months. Available in select locations
#2
Cox
Cox

Go Even Faster

  • Fiber 500/50 Mbps
  • 1280GB Data
$85/mo
for 24 months. Available in select locations
#3
Cox
Cox

Go Fast + Mobile Unlimited

  • Fiber 300/25 Mbps
  • 1280GB Data
$90/mo
for 24 months. Available in select locations.
#4
Cox
Cox

Go Super Fast

  • Fiber 1000/100 Mbps
  • 1280GB Data
$100/mo
for 24 months. Available in select locations
#5
Cox
Cox

Go Beyond Fast

  • Fiber 2000/100 Mbps
  • 1280GB Data
$115/mo
for 24 months. Available in select locations
#6
Cox
Cox

Go Even Faster + Mobile Unlimited

  • Fiber 500/50 Mbps
  • 1280GB Data
$120/mo
for 24 months. Available in select locations.
#7
Cox
Cox

Go Super Fast + Mobile Unlimited

  • Fiber 1000/100 Mbps
  • 1280GB Data
$135/mo
for 24 months. Available in select locations.
#8
Cox
Cox

Go Beyond Fast + Mobile Unlimited

  • Fiber 2000/100 Mbps
  • 1280GB Data
$150/mo
for 24 months. Available in select locations

AT&T Internet Plans

Internet Plans

AT&T
AT&T

Internet 300 (Fiber 300Mbps)

  • Fiber 300/300 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$35/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 300 (Fiber 300Mbps) + AT&T Wireless

  • Fiber 300/300 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$35/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 500 (Fiber 500Mbps)

  • Fiber 500/500 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$45/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 500 (Fiber 500Mbps) + AT&T Wireless

  • Fiber 500/500 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$45/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 100 (Fiber 100Mbps)

  • Fiber 100/100 Mbps
  • Unlimited Data
$45/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 100 (Fiber 100Mbps) + AT&T Wireless

  • Fiber 100/100 Mbps
  • Unlimited Data
$45/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet Air

  • Mobile Broadband 150/20 Mbps
  • Unlimited Data
  • Deal: Get $12 per month savings off your internet bill for the first 12 months
$48/mo
Paperless billing required. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 1000 (Fiber 1 GIG)

  • Fiber 1000/1000 Mbps
  • Unlimited Data
  • Deal: Get a $200 AT&T Visa® Reward Card with purchase of AT&T Fiber.
$60/mo
Price after discounts: $25/mo for new customers, and $10/mo w/ eligible Autopay & Paperless bill. Monthly State Cost Recovery charge applies in NV, OH, TX. One time install fee may apply.
AT&T
AT&T

Internet 2000 (Fiber 2 GIG)

  • Fiber 2000/2000 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$105/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.
AT&T
AT&T

Internet 2000 (Fiber 2 GIG) + AT&T Wireless

  • Fiber 2000/2000 Mbps
  • Unlimited Data
  • Deal: Get up to $32/mo savings off your internet bill for the first 12 months.
$105/mo
Price after Autopay & Paperless bill discount. Plus taxes & fees. Limited availability. May not be available in your area.


Methodology: How WhistleOut rates internet plans

WhistleOut evaluates internet plans based on the following criteria:

  • Price & value: Not all cheap plans are “bad,” and not all expensive plans are worth it. We look at everything a plan includes and compare it both to other plans from the same provider, as well as similar plans from competitors in the market, to determine whether the value is consistent with the price.
  • Speed & data: Faster upload and download speeds usually mean a better user experience, but not every household needs the fastest plan available. Additionally, the more guaranteed high-speed data the plan includes, the better the plan—but there’s also usually a limit to how much you actually need, and we ensure that you’re not overpaying for services or data that will go unused.
  • Coverage & network reliability: The breadth of an ISP’s network determines your reception and service. We value ISPs with large coverage maps who can provide quality internet to more Canadians.
  • Plan extras and perks: In addition to the basics—speeds and data—some plans throw in freebies like modems, installation, entertainment subscriptions, or service discounts.

Our internet experts leveraged proprietary data and real-world customer feedback to evaluate Cox and AT&T internet, analyzing their coverage, cost, and plan options. We considered plan-specific elements, including perks, premium data allowances, and upload/download speeds.

Looking for more options for your next internet plan? Be sure to check out our guides to the best internet service providers.

Chris Holmes

Staff Writer

Chris Holmes
Chris Holmes is a Contributing Writer for WhistleOut, where he covers the cell phone and internet industries. His work has been cited in publications like The Verge, The New York Times, and WIRED.

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