Quick Answer: CenturyLink vs Cox
Cox wins our 2026 head-to-head comparison with a 3.8/5 rating vs CenturyLink''s 3.5/5. Cox leads on speed (up to 2 Gbps), while CenturyLink offers the lower starting price ($50/mo).
CenturyLink vs Cox: Side-by-Side (2026)
CenturyLink, the consumer brand of Lumen Technologies, offers fiber and DSL internet service across 36 states with a Price for Life guarantee.
Use our compare all internet providers tool to see how top ISPs stack up side by side.
Cox Communications is a regional cable and fiber internet provider serving 18 states, offering speeds up to 2 Gbps with Panoramic Wi-Fi equipment.
| Feature | CenturyLink | Cox |
|---|---|---|
| Max Download Speed | 940 Mbps | 2 Gbps |
| Max Upload Speed | 940 Mbps | 1 Gbps |
| Starting Price | $50/mo | $50/mo |
| Technology | Fiber, DSL | Cable (DOCSIS 3.1), Fiber |
| Data Caps | No | Yes |
| Annual Contracts | No | No |
| States Served | 36 | 18 |
| Editorial Rating | 3.5/5 (1,678 reviews) | 3.8/5 (1,423 reviews) |
Speed: CenturyLink (940 Mbps) vs Cox (2 Gbps)
Cox wins on speed. CenturyLink tops out at 940 Mbps download / 940 Mbps upload. Cox reaches 2 Gbps download / 1 Gbps upload.
CenturyLink plan tiers: Simply Unlimited (200 Mbps), Fiber Gigabit (940 Mbps).
Cox plan tiers: Go Fast (100 Mbps), Internet 250 (250 Mbps), Internet 500 (500 Mbps), Gigablast (1 Gbps), Internet 2 Gig (2 Gbps).
Advertised speeds are theoretical maximums. Real-world throughput depends on network congestion, equipment quality, and infrastructure distance. Check FCC Broadband Facts labels for each plan before signing up.
Pricing: CenturyLink vs Cox Plans & Costs
CenturyLink and Cox are priced similarly, both starting around $50/mo. The value difference comes down to what each provider includes at that price point — specifically speed tier, equipment, and data policies.
| Provider | Plan | Speed | Price |
|---|---|---|---|
| CenturyLink | Simply Unlimited | 200 Mbps | $50/mo |
| CenturyLink | Fiber Gigabit | 940 Mbps | $65/mo |
| Cox | Go Fast | 100 Mbps | $50/mo |
| Cox | Internet 250 | 250 Mbps | $70/mo |
| Cox | Internet 500 | 500 Mbps | $90/mo |
| Cox | Gigablast | 1 Gbps | $110/mo |
| Cox | Internet 2 Gig | 2 Gbps | $150/mo |
Cox enforces data caps on most plans, while CenturyLink has no data limits.
View the latest CenturyLink plans and pricing to find the best deal for your household.
View the latest Cox plans and pricing to find the best deal for your household.
Technology: Fiber, DSL vs Cable (DOCSIS 3.1), Fiber
CenturyLink delivers internet via Fiber, DSL infrastructure. Cox uses Cable (DOCSIS 3.1), Fiber technology. The difference in underlying technology directly impacts speed consistency, upload performance, and latency.
CenturyLink offers both fiber and DSL service depending on your address. If fiber is available, you get speeds up to 940 Mbps with symmetric uploads. DSL service is slower but reaches more addresses. Check your specific address — the experience varies dramatically between CenturyLink fiber and DSL.
Availability: Where Can You Get Each Provider?
CenturyLink (regional coverage) serves customers in 36 U.S. states. Cox (regional coverage) is available in 18 states. Service area within a state varies by address — always verify availability at your specific location before ordering.
CenturyLink standout features: Price for Life guarantee, No annual contracts, No data caps on fiber.
Cox standout features: Panoramic Wi-Fi, Cox Mobile, Smart home integration.
Installation & Customer Service
CenturyLink: Self-install available for DSL (modem shipped free). Fiber requires professional installation (free, 2-3 hours). Fiber availability expanding — check address at centurylink.com.
Cox: Professional installation $75 (waived on select plans). Self-install available for existing Cox locations. Panoramic Wi-Fi gateway rental $14/mo. Fiber installation available in select areas with free professional setup.
CenturyLink support: Mon-Fri 8AM-6PM CT; 24/7 technical support; online chat available; CenturyLink app for account management
Cox support: Mon-Fri 8AM-8PM, Sat 9AM-6PM local time; 24/7 technical support; Cox app for billing & service management
Our Verdict: CenturyLink vs Cox (2026)
Choose CenturyLink if: you want unlimited data with no caps; you need broad availability (36 states). CenturyLink scores 3.5/5 in our editorial review based on 1,678 data points.
Learn more about Cox review and see what they offer in your area.
Learn more about CenturyLink review and see what they offer in your area.
Choose Cox if: budget is your priority (starts at $50/mo); you need max speed (up to 2 Gbps). Cox scores 3.8/5 based on 1,423 data points.
Overall pick: Cox earns our 2026 recommendation with a 3.8/5 rating. Speed goes to Cox, and CenturyLink wins on starting price. Check availability at your address — the best provider is the one that actually serves your home.
Check Availability in Your Area
Availability varies by address. Use our tools to find which providers serve your location:
Frequently Asked Questions
Is CenturyLink or Cox better for gaming?
Both CenturyLink and Cox support online gaming. CenturyLink offers speeds up to 940 Mbps and Cox up to 2 Gbps. For competitive gaming, latency matters more than raw speed — test both if available in your area.
Which is cheaper, CenturyLink or Cox?
CenturyLink starts at $50/mo vs Cox at $50/mo. But compare what you get at each price: CenturyLink''s base plan (Simply Unlimited) includes 200 Mbps for $50/mo. Cox''s base plan (Go Fast) includes 100 Mbps for $50/mo. Factor in equipment fees and any promotional expiration dates.
Which provider is better for streaming?
CenturyLink is better for heavy streaming because it has no data caps. Cox enforces data limits that 4K streaming households (using 50-80 GB/week) could hit. Both providers offer enough speed for 4K streaming.
Can I cancel without a fee?
Both CenturyLink and Cox offer month-to-month service with no annual contracts. Cancel at any time without early termination fees. Just return any rented equipment to avoid additional charges.
Is CenturyLink or Cox faster?
Compare maximum download speeds: CenturyLink and Cox offer different speed tiers depending on your location. Check the plan comparison table above for specific speeds. For most households, any plan over 300 Mbps handles streaming, gaming, and video calls without issues.
Frequently Asked Questions
- Which is better, Centurylink Internet or Cox Internet?
- The best choice depends on your needs. Centurylink Internet may offer wider availability, while Cox Internet may provide faster speeds. Compare plans, pricing, and coverage at your address to determine which is the better fit for your household.
- Is Centurylink Internet cheaper than Cox Internet?
- Pricing varies by plan, location, and promotions. Centurylink Internet starting prices may differ from Cox Internet introductory rates. Compare current plans including equipment fees, taxes, and contract terms for accurate pricing.
- Can I switch from Centurylink Internet to Cox Internet?
- Yes, switching providers is straightforward in most areas. Check Cox Internet availability at your address, then schedule installation. Many providers offer deals for new customers switching from a competitor.
Quick Verdict: CenturyLink vs Cox (2026)
Cox wins this comparison thanks to higher customer satisfaction (3.7/5 vs 3.5/5). Cox starts at $50/mo with speeds up to 2 Gbps, while CenturyLink starts at $30/mo with speeds up to 940 Mbps. However, CenturyLink may be the better choice if you prioritize price for life guarantee.
Read on for a detailed plan-by-plan comparison, price-per-Mbps analysis, and recommendations based on your usage patterns.
Plan-by-Plan Comparison: Every CenturyLink and Cox Plan
Below is a complete breakdown of every available plan from both providers, including price-per-Mbps calculations so you can evaluate true value at each tier.
| Provider | Plan Name | Download | Upload | Monthly Price | Technology | Price/Mbps |
|---|---|---|---|---|---|---|
| CenturyLink | Simply Unlimited | 100 Mbps | 100 Mbps | $30/mo | Fiber | $0.30 |
| CenturyLink | Fiber 200 | 200 Mbps | 200 Mbps | $40/mo | Fiber | $0.20 |
| CenturyLink | Fiber 500 | 500 Mbps | 500 Mbps | $50/mo | Fiber | $0.10 |
| CenturyLink | Fiber Gigabit | 940 Mbps | 940 Mbps | $70/mo | Fiber | $0.07 |
| Cox | Go Fast | 100 Mbps | 10 Mbps | $50/mo | Cable | $0.50 |
| Cox | Internet 250 | 250 Mbps | 10 Mbps | $70/mo | Cable | $0.28 |
| Cox | Internet 500 | 500 Mbps | 10 Mbps | $80/mo | Cable | $0.16 |
| Cox | Gigablast | 1 Gbps | 35 Mbps | $100/mo | Cable | $0.10 |
| Cox | Gigablast 2G | 2 Gbps | 100 Mbps | $150/mo | Fiber | $0.07 |
Technology Deep Dive: Fiber, DSL vs Cable (DOCSIS 3.1), Fiber
Understanding the underlying network technology helps explain why these two providers perform differently in speed, latency, and reliability tests.
Fiber-optic connections deliver data as light pulses through glass strands, providing the lowest latency (typically 1-5 ms) and symmetric upload/download speeds. Fiber is immune to electromagnetic interference and signal degradation over distance, making it the gold standard for residential internet.
Cable internet uses DOCSIS 3.1 technology over existing coaxial TV lines. While cable delivers strong download speeds (up to 2 Gbps), upload speeds are asymmetric and significantly slower. Cable connections share bandwidth with neighbors, which can lead to slowdowns during peak evening hours in densely populated areas.
DSL (Digital Subscriber Line) sends data over existing copper telephone wires. VDSL2 achieves speeds up to 100 Mbps at short distances, but performance degrades sharply beyond 5,000 feet from the DSLAM. While DSL is widely available, it is being phased out in favor of fiber in many markets.
CenturyLink delivers service over Fiber, DSL, while Cox uses Cable (DOCSIS 3.1), Fiber. This difference directly impacts upload speeds, latency during gaming/video calls, and how well your connection holds up during peak usage hours.
Price-per-Mbps Analysis: CenturyLink vs Cox
Price-per-Mbps reveals the true cost efficiency of each plan. Lower values mean more bandwidth for your dollar. CenturyLink offers better value at most tiers compared to Cox.
| Provider | Plan | Monthly Price | Download Speed | Price per Mbps |
|---|---|---|---|---|
| CenturyLink | Simply Unlimited | $30/mo | 100 Mbps | $0.300 |
| CenturyLink | Fiber 200 | $40/mo | 200 Mbps | $0.200 |
| CenturyLink | Fiber 500 | $50/mo | 500 Mbps | $0.100 |
| CenturyLink | Fiber Gigabit | $70/mo | 940 Mbps | $0.074 |
| Cox | Go Fast | $50/mo | 100 Mbps | $0.500 |
| Cox | Internet 250 | $70/mo | 250 Mbps | $0.280 |
| Cox | Internet 500 | $80/mo | 500 Mbps | $0.160 |
| Cox | Gigablast | $100/mo | 1 Gbps | $0.100 |
| Cox | Gigablast 2G | $150/mo | 2 Gbps | $0.075 |
Best value from CenturyLink: Fiber Gigabit at $0.074/Mbps.
Best value from Cox: Gigablast 2G at $0.075/Mbps.
Keep in mind that price-per-Mbps is just one metric. Equipment fees, data caps, and installation costs also affect total cost of ownership.
Who Should Choose CenturyLink vs Cox?
Choose CenturyLink If You:
- Price for life guarantee
- No data caps
- No contracts
- Wide availability
- Want a provider using Fiber, DSL technology
- Need service in one of the 36 states CenturyLink covers
Choose Cox If You:
- Speeds up to 2 Gbps
- No annual contracts
- Panoramic WiFi option
- Prefer Cable (DOCSIS 3.1), Fiber technology for your household
- Live in one of the 18 states Cox serves
For gamers and remote workers: Choose CenturyLink for lower latency and more reliable upload speeds during video calls. For budget-conscious households: Compare the entry-level plans above — CenturyLink starts at $30/mo while Cox starts at $50/mo. For heavy streamers with 4K devices: Prioritize the provider with no data caps or higher data allowances to avoid overage charges.
The Bottom Line: CenturyLink vs Cox
Both CenturyLink and Cox serve millions of customers, but they cater to different priorities. CenturyLink (Fiber, DSL) is best for households that value price for life guarantee and no data caps. Cox (Cable (DOCSIS 3.1), Fiber) is the better pick if you need speeds up to 2 gbps and no annual contracts.
Before signing up, check both providers' availability at your specific address — coverage can vary block by block. Also factor in equipment rental fees, installation costs, and any promotional pricing that expires after 12 months. The best provider is the one that delivers reliable speeds at your address for the price you are comfortable paying long-term.
Additional FAQs: CenturyLink vs Cox
- What are the data caps for CenturyLink and Cox?
- CenturyLink has a data cap policy of: No. Cox's data cap policy is: 1.25 TB. Data caps matter most for households with multiple 4K streamers, gamers, or remote workers who upload large files regularly. If you consistently use over 1 TB per month, prioritize the provider with no caps or higher allowances.
- Do CenturyLink or Cox require annual contracts?
- CenturyLink's contract policy is: No. Cox's contract policy is: No (1-year promo price). Even without contracts, watch for promotional pricing that increases after 12 months. Always calculate the two-year total cost, not just the introductory rate.
- Which provider has better upload speeds, CenturyLink or Cox?
- CenturyLink offers upload speeds up to 940 Mbps, while Cox reaches 100 Mbps. Upload speed matters for video conferencing, cloud backups, live streaming, and uploading content to social media. Fiber providers typically offer better upload speeds than other technologies.
- Can I bundle TV or phone service with CenturyLink or Cox?
- Bundling options vary by provider and location. Check each provider's website for current TV, phone, and mobile bundle deals at your address. Bundling can save $10-$30 per month compared to purchasing services separately, but make sure you actually need all the bundled services before committing.
- How do installation and equipment fees compare?
- Both providers charge installation and equipment fees that are not reflected in advertised monthly prices. Typical installation runs $50-$100 (often waived during promotions), and modem/router rental adds $10-$15 per month. You can reduce costs by purchasing your own compatible modem and router — check each provider's approved equipment list before buying.
Find the Best Internet Provider at Your Address
Availability and pricing vary by location. Enter your ZIP code below to see which providers serve your area, compare current plans, and find exclusive deals near you.
Check availability by ZIP code to see real-time pricing and plans at your specific address.
You can also browse all provider comparisons or read our guide to choosing an internet provider for expert recommendations based on your household's needs.
Related Comparisons & Resources
- CenturyLink (Quantum Fiber) Review & Plans (2026)
- Cox Review & Plans (2026)
- Compare All Internet Providers
- How to Choose an Internet Provider
- 2026 Broadband Access Report
- Internet Speed Guide: How Much Do You Need?
- Our Review Methodology
- Search Internet Providers by ZIP Code
- AT&T vs Spectrum Comparison
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Market Context
The broadband market concentration in areas served by both CenturyLink and Cox 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.
