Quick Verdict: AT&T vs CenturyLink
AT&T is our pick for most households in 2026. AT&T offers faster speeds starting at $55/mo with speeds up to 5 Gbps, while CenturyLink starts at $30/mo with up to 940 Mbps. Choose CenturyLink if budget is your top priority.
AT&T vs CenturyLink: Side-by-Side (2026)
Choosing between AT&T Internet and CenturyLink/Quantum Fiber requires comparing speed, price, technology, availability, and customer service. Below is our detailed head-to-head analysis based on current 2026 plan data.
| Feature | AT&T | CenturyLink |
|---|---|---|
| Max Download Speed | 5 Gbps | 940 Mbps |
| Starting Price | $55/mo | $30/mo |
| Technology | Fiber/DSL | Fiber/DSL |
| Data Caps | None on fiber; 1 TB on DSL | None on fiber; 1 TB on DSL |
| Contracts Required | None | None |
| States Served | 21 | 36 |
| Installation | $0-$99 professional | Free professional install |
Plan-by-Plan Comparison: Every AT&T and CenturyLink Plan
Below is a complete breakdown of every plan from both AT&T and CenturyLink, including speed, monthly cost, data caps, contract requirements, and value per Mbps.
| Provider | Plan | Speed | Price | Data Cap | Contract | Value ($/Mbps) |
|---|---|---|---|---|---|---|
| AT&T | Internet 300 | 300 Mbps | $55/mo | None on fiber; 1 TB on DSL | None | $0.18/Mbps |
| AT&T | Internet 500 | 500 Mbps | $65/mo | None on fiber; 1 TB on DSL | None | $0.13/Mbps |
| AT&T | Internet 1000 | 1 Gbps | $80/mo | None on fiber; 1 TB on DSL | None | $0.08/Mbps |
| AT&T | Internet 2000 | 2 Gbps | $150/mo | None on fiber; 1 TB on DSL | None | $0.07/Mbps |
| AT&T | Internet 5000 | 5 Gbps | $180/mo | None on fiber; 1 TB on DSL | None | $0.04/Mbps |
| CenturyLink | Simply Unlimited | 100-200 Mbps | $30/mo | None on fiber; 1 TB on DSL | None | $0.3/Mbps |
| CenturyLink | Fiber Internet | 200-940 Mbps | $30-$70/mo | None on fiber; 1 TB on DSL | None | $0.15/Mbps |
Prices shown are standard monthly rates. Promotional pricing may be available for new customers. Equipment rental fees ($5-$15/mo) and taxes are typically additional. Always confirm the total monthly cost including all fees before signing up.
Technology Deep Dive: Fiber/DSL vs Fiber/DSL
Both AT&T and CenturyLink use Fiber/DSL technology. Fiber internet uses light signals through glass strands, delivering symmetrical upload and download speeds with the lowest latency of any home internet technology. Fiber is immune to electromagnetic interference, handles peak-hour congestion better than shared cable, and supports multi-gigabit speeds.
Since both providers use the same underlying technology, the differences come down to plan pricing, speed tiers, coverage area, and customer service quality rather than fundamental technology advantages.
For latency-sensitive activities like online gaming, video calls, and real-time collaboration, fiber typically offer the best experience with latency under 20 ms.
Price-per-Mbps Analysis: Which Provider Delivers More Value?
AT&T delivers better value per dollar at $0.04/Mbps on the Internet 5000 plan (5 Gbps for $180/mo). CenturyLink's best value is $0.15/Mbps on the Fiber Internet plan (200-940 Mbps for $30-$70/mo).
Price-per-Mbps matters most if you need raw bandwidth for multiple devices, 4K streaming on several TVs, or large file transfers. If you just need basic browsing and streaming for 1-2 people, absolute price matters more than per-Mbps value.
Keep in mind that price-per-Mbps is just one metric. A $20/mo plan at 100 Mbps ($0.20/Mbps) may be a better fit for a single user than a $100/mo plan at 2 Gbps ($0.05/Mbps) if you never need that much speed. Match the plan to your actual usage — see our internet speed guide to determine how much bandwidth your household needs.
Speed Comparison: AT&T (5 Gbps) vs CenturyLink (940 Mbps)
AT&T wins on maximum speed with up to 5 Gbps download, compared to 940 Mbps from CenturyLink. However, advertised speeds are theoretical maximums — real-world performance depends on network congestion, your equipment, and distance from infrastructure.
For most households, 300-500 Mbps is sufficient for multiple simultaneous 4K streams, video calls, and online gaming. Gigabit plans are best for households with 10+ connected devices, frequent large file downloads, or home offices with heavy upload needs.
Check FCC Broadband Facts labels for each plan to see the typical speed range (not just the maximum). The FCC requires providers to disclose typical download/upload speeds, latency, and pricing in a standardized nutrition-label format.
Regional Availability: Where Both Providers Overlap
CenturyLink has broader coverage, serving customers in 36 states compared to AT&T's 21 states. However, state-level coverage does not guarantee availability at your specific address. Both providers have pockets of coverage and service gaps within their footprint.
The overlap between AT&T and CenturyLink is most common in mid-size and large metro areas where multiple ISPs compete for customers. In these overlap zones, you may be able to negotiate promotional pricing by mentioning the competing provider.
Pro tip: Enter your ZIP code at the top of this page or visit each provider's availability checker to confirm service at your exact address before comparing plans.
Customer Service Comparison
AT&T support: 24/7 phone, chat, in-store. Installation: $0-$99 professional.
CenturyLink support: Phone, chat, online. Installation: Free professional install.
Customer service quality varies by region. We recommend checking recent customer reviews for your specific area before committing. Key questions to ask when calling: Is there a setup fee? What equipment is included? Are there promotional pricing terms? What happens to your rate after the promotional period?
Who Should Choose AT&T vs CenturyLink?
Choose AT&T if:
- You need speeds up to 5 Gbps and want the reliability of Fiber/DSL
- You prefer AT&T's pricing starting at $55/mo
- You want no data caps on any plan
- You need month-to-month flexibility with no contract
- You live in one of the 21 states where AT&T is available
Choose CenturyLink if:
- You need speeds up to 940 Mbps and want the reliability of Fiber/DSL
- You prefer CenturyLink's pricing starting at $30/mo
- You want no data caps on any plan
- You need month-to-month flexibility with no contract
- You live in one of the 36 states where CenturyLink is available
Best for gamers: AT&T wins with higher max speeds and lower latency fiber. For competitive gaming, look for plans with low latency and consistent upload speeds.
Best for remote work: Either provider works well. Prioritize upload speed (at least 10 Mbps) and low latency for Zoom/Teams calls.
Best on a budget: CenturyLink starts lower at $30/mo, but compare what you get at each price point — the cheapest plan may not meet your speed needs.
Best for rural areas: Check availability at your address, as rural coverage varies significantly may be your only option in areas without wired infrastructure.
Bottom Line: AT&T vs CenturyLink (2026)
AT&T is our recommended pick for most households choosing between these two providers in 2026. AT&T delivers faster speeds with plans starting at $55/mo and speeds up to 5 Gbps. No data caps and no contracts make it a flexible choice.
That said, CenturyLink is the better fit if you prioritize the lowest possible monthly bill.
The best internet provider is ultimately the one that serves your address, fits your budget, and meets your speed needs. Enter your ZIP code below to check what's available where you live.
Frequently Asked Questions
Is AT&T or CenturyLink better for gaming?
AT&T is generally better for gaming with faster max speeds (5 Gbps). However, latency matters more than raw speed for competitive gaming. Fiber connections offer the lowest latency (5-15 ms). Test your connection's ping to your preferred game servers before committing to a plan.
Which is cheaper, AT&T or CenturyLink?
CenturyLink starts lower at $30/mo vs $55/mo. But base prices reflect different speed tiers — compare plans at the same speed level for a fair comparison. Also factor in equipment rental ($5-$15/mo), installation fees, and any promotional pricing that expires after 12-24 months.
Does AT&T or CenturyLink have data caps?
AT&T: None on fiber; 1 TB on DSL. CenturyLink: None on fiber; 1 TB on DSL. Data caps affect heavy users who stream in 4K, download large game files, or have many connected devices. A typical household uses 400-600 GB/month. If your plan has a 1 TB cap, you have significant headroom for most usage patterns.
Can I switch from AT&T to CenturyLink?
Yes. First, check CenturyLink availability at your address and choose a plan. Schedule your new installation before canceling your old service to avoid a gap. If you have AT&T equipment, return it promptly to avoid unreturned equipment fees. See our switching guide for step-by-step instructions.
Do AT&T or CenturyLink require contracts?
AT&T: None. CenturyLink: None. Neither provider requires a contract, giving you full flexibility to cancel or change plans at any time.
Is AT&T or CenturyLink better for streaming?
Both providers support streaming. For 4K streaming, you need at least 25 Mbps per stream. Both AT&T (up to 5 Gbps) and CenturyLink (up to 940 Mbps) exceed this at every plan tier. Neither provider has data caps, so you can stream as much as you want.
What equipment do I need for AT&T vs CenturyLink?
AT&T: $0-$99 professional. CenturyLink: Free professional install. Most providers include a modem/gateway with your plan (either free or for a monthly rental fee). You can often save $5-$15/mo by using your own compatible modem and router. Check each provider's approved equipment list before purchasing.
Which provider has better customer service?
AT&T: 24/7 phone, chat, in-store. CenturyLink: Phone, chat, online. Customer service quality varies significantly by region. We recommend checking recent reviews on social media and the Better Business Bureau for your specific area. 24/7 support availability is a significant advantage for troubleshooting issues outside business hours.
Can I bundle internet with TV or phone?
Both providers offer bundle options. AT&T and CenturyLink may discount your monthly rate when you add TV, phone, or mobile service. Compare the total bundle cost vs. standalone internet pricing to see if the bundle actually saves money.
Check Which Providers Serve Your Address
The best internet provider depends on what's available at your specific address. Enter your ZIP code to see all available providers, plans, and prices where you live.
Sources
This comparison references data from FCC Broadband Map, AT&T, CenturyLink, and the U.S. Census Bureau. Pricing and availability are subject to change.
Market Context
The broadband market concentration in areas served by both AT&T and CenturyLink varies significantly. According to FCC broadband deployment data, median household income and population density are key factors in determining which provider offers better value. The BEAD (Broadband Equity, Access, and Deployment) program may expand options in underserved areas where neither provider currently has strong coverage.
Our Verdict: AT&T vs CenturyLink
For most users, CenturyLink offers better value with plans starting at $50/mo, while CenturyLink delivers higher maximum speeds up to 940 Mbps. Your ideal pick depends on your budget, speed needs, and which provider serves your address.
Below, we break down every major difference between AT&T and CenturyLink — from speed tiers and monthly pricing to contract terms, data policies, equipment costs, and customer support — so you can make an informed decision for your household.
Speed Comparison: AT&T vs CenturyLink
Speed is often the most important factor when choosing an internet (or TV) provider. Here is how AT&T and CenturyLink compare on raw speed capabilities:
| Speed Metric | AT&T | CenturyLink |
|---|---|---|
| Maximum Download Speed | 5 Gbps | 940 Mbps |
| Maximum Upload Speed | 5 Gbps | 940 Mbps |
| Technology | Fiber (FTTH), DSL, Fixed Wireless | Fiber, DSL |
| Entry-Level Speed | 300 Mbps | 200 Mbps |
AT&T uses Fiber (FTTH), DSL, Fixed Wireless technology, delivering symmetrical upload and download speeds on fiber plans. CenturyLink relies on Fiber, DSL, which also offers symmetrical speeds on fiber connections.
AT&T Plans and Pricing (2026)
AT&T offers 5 plan tiers starting at $55/mo:
| Plan | Speed | Monthly Price | Key Features |
|---|---|---|---|
| Internet 300 | 300 Mbps | $55/mo | No annual contract, AT&T All-Fi router |
| Internet 500 | 500 Mbps | $65/mo | No annual contract, AT&T All-Fi router, Ideal for 6+ devices |
| Internet 1000 | 1 Gbps | $80/mo | Symmetrical speeds, AT&T All-Fi router, No data caps |
| Internet 2000 | 2 Gbps | $150/mo | Symmetrical speeds, Wi-Fi 6E gateway, No data caps |
| Internet 5000 | 5 Gbps | $180/mo | Symmetrical speeds, Wi-Fi 6E gateway, No data caps |
All AT&T plans come without annual contractsand without data caps. Additional features include AT&T Fiber, No data caps on fiber, Max included with select plans.
CenturyLink Plans and Pricing (2026)
CenturyLink offers 2 plan tiers starting at $50/mo:
| Plan | Speed | Monthly Price | Key Features |
|---|---|---|---|
| Simply Unlimited | 200 Mbps | $50/mo | No annual contract, No data caps on fiber, Price for Life guarantee |
| Fiber Gigabit | 940 Mbps | $65/mo | Symmetrical speeds, No data caps, Price for Life guarantee |
All CenturyLink plans come without annual contractsand without data caps. Notable features include Price for Life guarantee, No annual contracts, No data caps on fiber.
Pricing Breakdown and Hidden Costs
Looking at sticker price alone does not tell the full story. Here is what you should consider for each provider:
AT&T Costs
- Starting price: $55/mo
- Equipment: Router/modem typically included or available for rental
- Installation: Professional installation for fiber (1-3 hours).
- Contracts: No annual contract required
- Data caps: No data caps
CenturyLink Costs
- Starting price: $50/mo
- Equipment: Router/modem typically included or available for rental
- Installation: Self-install available for DSL (modem shipped free).
- Contracts: No annual contract required
- Data caps: No data caps
Technology Comparison
AT&T delivers service via Fiber (FTTH), DSL, Fixed Wireless. Fiber connections provide the most reliable and fastest speeds with the lowest latency, making it the gold standard for home internet. 5G fixed wireless offers a simple plug-and-play setup without needing a wired connection to your home.
CenturyLink uses Fiber, DSL. Fiber-to-the-home provides symmetric speeds and the lowest latency, ideal for gaming, video conferencing, and large file transfers.
Coverage and Availability
AT&T is a national provider serving 21 states, headquartered in Dallas, Texas. CenturyLink is a regional provider covering 36 states from its base in Monroe, Louisiana.
Since AT&T serves 21 states and CenturyLink covers 36, your location will determine which provider — or both — are available to you. Always check address-level availability before making a decision.
Contract Terms and Data Caps
| Policy | AT&T | CenturyLink |
|---|---|---|
| Annual Contract Required? | No | No |
| Data Caps? | No data caps | No data caps |
| Early Termination Fee? | None — no contract | None — no contract |
| Price Lock? | Prices may increase after promotional period | Price guaranteed for subscription period |
Customer Service and Reliability
AT&T support: Mon-Fri 8AM-7PM local time, Sat 8AM-5PM; 24/7 technical support; myAT&T app
CenturyLink support: Mon-Fri 8AM-6PM CT; 24/7 technical support; online chat; CenturyLink app
Both providers offer technical support for troubleshooting connectivity issues. When evaluating customer service quality, consider that national providers like AT&T may have longer wait times but offer more self-service options. Check recent reviews from customers in your area for the most current service quality information.
Installation Process
AT&T Installation
Professional installation for fiber (1-3 hours). Self-install available for some DSL plans. Fiber appointments within 5-10 business days.
CenturyLink Installation
Self-install available for DSL (modem shipped free). Fiber requires professional installation (free, 2-3 hours).
Best Use Cases: Who Should Choose Which Provider?
Choose AT&T if you:
- Want a simple, no-contract wireless setup without professional installation
- Need nationwide availability and a price lock guarantee
- Want budget-friendly plans starting at $55/mo
- Value at&t fiber
Choose CenturyLink if you:
- Want access to high-speed fiber or wired internet
- Live in one of the 36 states served by CenturyLink
- Want budget-friendly plans starting at $50/mo
- Value price for life guarantee
For Gamers
If low latency gaming is a priority, AT&T with fiber has a clear advantage — fiber connections typically deliver 1-5ms latency compared to 25-50ms for cable and 20-40ms for 5G.
For Remote Workers
Video conferencing and cloud applications require reliable upload speeds. Fiber providers like AT&T offer symmetric upload speeds, which is essential for video calls, screen sharing, and large file uploads.
For Families and Streaming
A household with 4+ people streaming simultaneously should look for at least 200 Mbps. AT&T starts at 300 Mbps while CenturyLink starts at 200 Mbps. For 4K streaming on multiple TVs, consider plans offering 500 Mbps or higher from either provider.
2-Year Total Cost of Ownership
Monthly prices only tell part of the story. Here is what each provider costs over a 2-year period, including the base plan price:
| Cost Factor | AT&T | CenturyLink |
|---|---|---|
| Entry Plan (24 months) | $1,320 | $1,200 |
| Mid-Tier Plan (24 months) | $1,920 | $1,560 |
| Contract Requirement | None | None |
| Early Termination Fees | $0 | $0 |
| Data Overage Risk | None | None |
When choosing between AT&T and CenturyLink, factor in not just the monthly price but also equipment rental fees, installation costs, and any promotional rate expirations. The lack of contracts from both providers means you can switch without penalty if service does not meet expectations.
Side-by-Side Comparison Table
| Feature | AT&T | CenturyLink |
|---|---|---|
| Technology | Fiber (FTTH), DSL, Fixed Wireless | Fiber, DSL |
| Max Download Speed | 5 Gbps | 940 Mbps |
| Max Upload Speed | 5 Gbps | 940 Mbps |
| Starting Price | $55/mo | $50/mo |
| Number of Plans | 5 | 2 |
| Contracts | No | No |
| Data Caps | No | No |
| Coverage | National (21 states) | Regional (36 states) |
| Headquarters | Dallas, Texas | Monroe, Louisiana |
| Founded | 1885 | 1930 |
| Customer Support | Mon-Fri 8AM-7PM local time, Sat 8AM-5PM | Mon-Fri 8AM-6PM CT |
| 2-Year Entry Cost | $1,320 | $1,200 |
Frequently Asked Questions
Is AT&T or CenturyLink cheaper?
AT&T starts at $55/mo while CenturyLink starts at $50/mo. However, the cheapest option depends on the speed tier you need and any promotional pricing available in your area. Over a 2-year period, the entry-level plan from AT&T costs approximately $1,320 compared to $1,200 from CenturyLink.
Which provider has faster speeds?
AT&T offers a maximum download speed of 5 Gbps, while CenturyLink goes up to 940 Mbps. Keep in mind that actual speeds depend on your location, the plan you choose, and network congestion.
Do AT&T or CenturyLink require contracts?
AT&T does not require annual contracts. CenturyLink also has no contract requirement. This means you can cancel either service at any time without paying an early termination fee.
Do these providers have data caps?
AT&T does not impose data caps on any plan. CenturyLink also has no data caps.
Can I bundle AT&T and CenturyLink services?
These two providers are competitors, so bundling their services together is not typically an option. However, each provider may offer its own bundle discounts — for example, mobile + internet packages.
Which provider is better for rural areas?
For rural locations, AT&T typically has broader availability. Satellite options like Starlink may also be worth considering if neither provider serves your exact address. Always verify service at your specific address before signing up.
How We Compared AT&T and CenturyLink
This comparison is based on publicly available plan information, pricing, and features as of 2026. We evaluated both providers across key factors including speed tiers, monthly costs, contract requirements, data policies, technology type, coverage area, customer service availability, and total cost of ownership. All pricing reflects standard rates — promotional offers and regional variations may apply. We recommend checking each provider's website for the most current plans available at your address.
For more details on each provider, visit our full AT&T review or our complete CenturyLink review. You can also explore other internet provider comparisons to find the best service in your area.
