AT&T vs Cox: Our Verdict
AT&T Fiber and Cox Communications represent two fundamentally different approaches to home internet: AT&T delivers pure fiber-optic service with symmetrical speeds up to 5 Gbps across 21+ states in the South, Midwest, and West, while Cox provides hybrid coaxial cable internet in 18 states with download speeds up to 1 Gbps. AT&T's price-lock guarantee ensures your monthly rate never increases, whereas Cox uses promotional pricing that rises after the initial term. For households with access to AT&T Fiber, the combination of symmetrical speeds, no data caps, and locked-in pricing makes it the stronger overall value.
Our Pick
AT&T
Recommendation
Choose AT&T Fiber if it is available at your address — you will get faster symmetrical speeds, no data caps, and a price-lock guarantee that prevents future rate hikes. Cox is worth considering if AT&T Fiber has not reached your neighborhood yet, especially at the introductory $39.99/month price point for 100 Mbps, but keep in mind that Cox enforces data caps on some plans and promotional rates increase after the initial period.
Side-by-Side Comparison
| Feature | AT&T | Cox |
|---|---|---|
| Starting Price | $10.99/mo | $15.00/mo |
| Max Internet Speed | 5000 Mbps | 2000 Mbps |
| Available Plans | 13 plans | 10 plans |
| Internet | ||
| TV | ||
| Mobile | ||
| Home Security | ||
| View AT&T Plans | View Cox Plans |
Featured Plans
AT&T
AT&T Internet 300
AT&T Fiber Internet 1000
AT&T Premium 2.0
Cox
Cox Gigablast
Contour TV Preferred
Cox Mobile Gig Unlimited
Frequently Asked Questions
Is AT&T Fiber faster than Cox internet?
Yes, AT&T Fiber offers significantly faster speeds overall. AT&T Fiber plans range from 300 Mbps to 5 Gbps with symmetrical upload and download speeds, meaning your upload speed matches your download speed at every tier. Cox tops out at 1 Gbps download with much slower upload speeds typical of cable infrastructure. For activities like video conferencing, cloud backups, and content creation, AT&T Fiber's symmetrical speeds provide a noticeably better experience.
Does Cox internet have data caps?
Cox enforces data caps on some of its internet plans, which can be a significant drawback for heavy internet users. Depending on your plan tier and market, Cox may impose a 1.25 TB monthly data allowance with overage charges if you exceed it. AT&T Fiber, by contrast, includes unlimited data on every single plan with no caps or overage fees, making it the better choice for households that stream in 4K, game online, or have multiple connected devices.
Which is cheaper long-term, AT&T or Cox?
AT&T Fiber is typically cheaper over a two-year period when you factor in Cox's post-promotional price increases. Cox's introductory rate of $39.99/month for 100 Mbps looks attractive, but it jumps substantially after 12 months. AT&T Fiber starts at $55/month for 300 Mbps with a price-lock guarantee, meaning that rate stays the same for as long as you maintain service. Over 24 months, AT&T's consistent pricing often results in lower total cost at comparable or faster speed tiers.
Does AT&T Fiber require a contract?
No, AT&T Fiber does not require an annual contract on any of its plans. All AT&T Fiber plans are month-to-month, and the price-lock guarantee applies regardless — your rate is locked in without a commitment period. Cox also offers no-contract options, but some of its promotional pricing may be tied to term agreements. AT&T's approach gives you pricing stability without locking you in.
Is AT&T or Cox available in more areas?
Cox serves approximately 18 states across the United States, primarily in suburban and urban markets in the South, Midwest, and West Coast, including major cities like Phoenix, Las Vegas, and San Diego. AT&T Fiber is available in 21+ states concentrated in the South, Midwest, and West, covering metros like Dallas, Atlanta, Los Angeles, Chicago, and Nashville. There is some geographic overlap between the two providers, so customers in shared markets should compare plans at their specific address to determine which service delivers the best speeds and value.