Quick Answer: CenturyLink vs. EarthLink
Both CenturyLink and EarthLink are viable internet options, but they differ significantly in technology, pricing, and performance. CenturyLink uses Fiber, DSL while EarthLink uses Fiber, DSL, Fixed Wireless. CenturyLink starts at $50 and EarthLink starts at $50. Read on for a detailed breakdown of speeds, costs, contracts, and which is best for your needs.
CenturyLink vs. EarthLink: Complete Internet Comparison (2026)
Choosing between CenturyLink and EarthLink is a decision that affects your household's daily connectivity -- from streaming and gaming to remote work and smart home devices. These two providers take fundamentally different approaches to delivering internet service, making this comparison essential reading before you sign up.
CenturyLink operates on Fiber, DSL technology and covers 36 states (regional), offering speeds of 200 Mbps - 940 Mbps. EarthLink uses Fiber, DSL, Fixed Wireless and covers All 50 states (national), delivering speeds of 100 Mbps - 5 Gbps. The technology difference alone creates significant variations in real-world performance, reliability, and upload speeds -- factors that matter more than ever in 2026.
This comprehensive guide compares every aspect that affects your internet experience: speed tiers and real-world performance, monthly pricing and hidden fees, contract obligations and data caps, equipment costs, installation processes, customer service quality, and specific use case recommendations. By the end, you will know exactly which provider is the better fit for your household.
Technology Comparison: How CenturyLink and EarthLink Deliver Service
Understanding the underlying technology is critical because it determines not just speed, but also latency, reliability, upload performance, and weather resilience.
CenturyLink: Fiber, DSL
Fiber-optic technology uses light pulses through glass strands, delivering symmetrical upload and download speeds with extremely low latency (typically 1-5ms). Fiber is immune to electromagnetic interference and weather conditions, making it the most reliable internet technology available. Fiber connections provide consistent performance regardless of how many neighbors are online, since each connection has dedicated bandwidth to the home.
EarthLink: Fiber, DSL, Fixed Wireless
Fiber-optic technology uses light pulses through glass strands, delivering symmetrical upload and download speeds with extremely low latency (typically 1-5ms). Fiber is immune to electromagnetic interference and weather conditions, making it the most reliable internet technology available. Fiber connections provide consistent performance regardless of how many neighbors are online, since each connection has dedicated bandwidth to the home.
The technology difference between CenturyLink and EarthLink is not just academic -- it directly impacts your daily internet experience. Consider how each technology type performs during peak evening hours, severe weather, and for upload-heavy tasks like video calls and cloud backups.
Speed Comparison: CenturyLink vs. EarthLink Plans
| Feature | CenturyLink | EarthLink |
|---|---|---|
| Download Speed Range | 200 Mbps - 940 Mbps | 100 Mbps - 5 Gbps |
| Upload Speed Range | Up to 940 Mbps (fiber) | Up to 5 Gbps (fiber) |
| Technology | Fiber, DSL | Fiber, DSL, Fixed Wireless |
| Data Caps | None | None |
| Contracts Required | No | No |
CenturyLink offers download speeds of 200 Mbps - 940 Mbps with upload speeds of Up to 940 Mbps (fiber). EarthLink delivers 100 Mbps - 5 Gbps downloads with Up to 5 Gbps (fiber) uploads. Upload speed matters significantly for video calls, live streaming, and cloud storage -- areas where these providers may differ substantially.
For context, here is what different speed tiers can handle in practice: 100 Mbps supports 4-5 simultaneous HD streams plus web browsing. 300 Mbps handles 4K streaming on multiple devices plus gaming. 500 Mbps to 1 Gbps supports heavy multi-device households with 10+ connected devices simultaneously. Speeds above 1 Gbps are ideal for content creators, large file transfers, home servers, and future-proofing your connection as demand grows.
Keep in mind that advertised speeds represent maximum capability under ideal conditions. Real-world speeds typically reach 80-95% of the advertised rate on fiber, 60-80% on cable during off-peak hours, and can vary more significantly on wireless and satellite connections.
All Plans and Pricing: CenturyLink vs. EarthLink (2026)
CenturyLink plans range from $50-$65/mo, while EarthLink plans range from $50-$100/mo. Here is the complete plan-by-plan breakdown with speeds, prices, and included features:
| Provider | Plan | Speed | Price | Key Features |
|---|---|---|---|---|
| CenturyLink | Simply Unlimited | 200 Mbps | $50/mo | No contract, No data caps on fiber, Price for Life guarantee |
| CenturyLink | Fiber Gigabit | 940 Mbps | $65/mo | Symmetrical speeds, No data caps, Price for Life, Wi-Fi router |
| EarthLink | Fiber 100 | 100 Mbps | $50/mo | No data caps, No contracts, Free installation |
| EarthLink | Fiber 300 | 300 Mbps | $60/mo | No data caps, WiFi router included |
| EarthLink | Fiber 500 | 500 Mbps | $65/mo | No data caps, WiFi router included |
| EarthLink | Fiber 1 Gig | 1 Gbps | $70/mo | No data caps, Best for 8+ devices |
| EarthLink | Fiber 5 Gig | 5 Gbps | $100/mo | No data caps, Multi-gig speeds |
CenturyLink Pricing Details
CenturyLink starts at $50/mo for its entry-level plan (Simply Unlimited), which delivers 200 Mbps. The top-tier plan (Fiber Gigabit) costs $65/mo for 940 Mbps. There are no contracts or early termination fees, so you can upgrade, downgrade, or cancel at any time. Key features include: Price for Life guarantee, No annual contracts, No data caps on fiber.
EarthLink Pricing Details
EarthLink starts at $50/mo for its base plan (Fiber 100), delivering 100 Mbps. The premium tier (Fiber 5 Gig) costs $100/mo for 5 Gbps. No contracts are required on any plan, giving you month-to-month flexibility. Key features include: No data caps, No throttling, Dedicated customer service, Multiple technology options.
When comparing prices, look beyond the monthly rate. Factor in equipment rental fees (typically $5-$15/mo), installation charges, and any promotional price expiration dates. The cheapest plan is not always the best value -- compare the cost per Mbps to find the sweet spot for your usage level.
Contracts, Data Caps, and Hidden Fees
| Policy | CenturyLink | EarthLink |
|---|---|---|
| Contract Required | No -- month-to-month | No -- month-to-month |
| Early Termination Fee | None | None |
| Data Caps | No data caps | No data caps |
| Equipment | Wi-Fi router included on fiber plans. DSL modem shipped free. | WiFi router included on fiber plans. |
| Price Increases | Possible after 12 months | Possible after 12 months |
Both providers offer contract-free service, giving you the flexibility to cancel or switch at any time without penalty. This is a significant advantage over providers that lock you into 1-2 year agreements with hefty early termination fees.
Neither provider imposes data caps, meaning you can stream, download, game, and browse without worrying about overage charges or throttled speeds. This is increasingly important as household data consumption continues to grow with 4K streaming, cloud gaming, and smart home devices.
Beyond the advertised price, watch for these common hidden costs: equipment rental fees ($5-$15/mo), professional installation charges ($60-$100), Wi-Fi router fees, late payment fees, and price increases after promotional periods end. Always ask about the total all-in monthly cost before signing up.
Installation and Equipment: CenturyLink vs. EarthLink
CenturyLink Installation
Self-install for DSL (modem shipped free). Fiber requires pro install (free, 2-3 hours). Equipment details: Wi-Fi router included on fiber plans. DSL modem shipped free.
EarthLink Installation
Pro install for fiber. DSL self-install available. Fixed wireless gateway ships. Equipment details: WiFi router included on fiber plans.
The installation experience can vary significantly between providers. Professional installation means a technician handles everything -- running cables, mounting equipment, configuring your router, and testing speeds -- but requires scheduling a visit during a service window. Self-installation kits let you set up on your own schedule but may require basic technical comfort with connecting cables and following app-based setup instructions.
Tips for installation day: clear the area where equipment will be installed, ensure someone 18+ is home during the appointment window, test your speeds immediately after setup using a wired connection, and save your technician's contact information in case of follow-up issues.
Customer Service Comparison: CenturyLink vs. EarthLink
| Support Feature | CenturyLink | EarthLink |
|---|---|---|
| Support Hours | Mon-Fri 8AM-6PM CT; 24/7 tech support; online chat; CenturyLink app | Mon-Fri 8AM-11PM ET, Sat-Sun 8AM-10PM ET; US-based support |
| Phone Support | Yes | Limited |
| Self-Service App | Yes | Limited |
| In-Store Support | No | No |
Customer service quality matters most when something goes wrong -- an outage, billing dispute, or technical issue. CenturyLink provides support via Mon-Fri 8AM-6PM CT; 24/7 tech support; online chat; CenturyLink app. EarthLink offers Mon-Fri 8AM-11PM ET, Sat-Sun 8AM-10PM ET; US-based support.
When evaluating customer service, consider these factors: response time during outages, availability of local service centers for in-person help, quality of self-service tools (mobile app, website, chatbot), whether technical support is available 24/7 or only during business hours, and whether you can reach a human representative without navigating lengthy phone trees. Providers with both 24/7 phone support and a robust self-service app generally deliver the best overall support experience.
Coverage and Availability
CenturyLink serves 36 states (regional). EarthLink covers All 50 states (national). Coverage overlap may be limited since these providers serve different regions, so confirming availability at your specific address is the essential first step.
Even within a provider's service area, not all addresses receive the same technology or speed tiers. For example, a provider may offer fiber at one address and only DSL a few blocks away. Always check availability at your exact address through each provider's website or by calling their sales line. Some addresses may only have one of these two options available, which simplifies the decision considerably.
Best For: Who Should Choose Which Provider?
Best for Gaming
For online gaming, low latency and consistent speeds matter most. Fiber connections from CenturyLink provide the lowest latency (1-5ms ping), making them ideal for competitive online gaming where every millisecond counts. Cable connections typically deliver 10-30ms latency, which is adequate for casual gaming. Wireless and satellite connections generally have higher and more variable latency. For competitive titles like Fortnite, of Duty, and Valorant, latency under 20ms is ideal. For casual gaming, anything under 50ms works well.
Best for Streaming (Netflix, YouTube, Disney+, Hulu)
4K streaming requires approximately 25 Mbps per stream, while standard HD needs about 5 Mbps. A household streaming on 3-4 screens simultaneously needs 100-150 Mbps minimum. Both CenturyLink and EarthLink offer plans that exceed this threshold. Neither provider has data caps, so you can stream as much content as you want without worrying about overage charges or speed throttling. If your household has multiple streaming subscriptions and everyone watches simultaneously, prioritize plans with at least 300 Mbps.
Best for Working from Home (Remote Work)
Remote work requires reliable speeds for video conferencing (5-10 Mbps up/down per call), cloud file access (Google Drive, Dropbox, OneDrive), and VPN connections. Upload speed is critical here -- Pay close attention to upload speeds, as most video calls and file uploads depend on upstream bandwidth. A plan with 10+ Mbps upload is the minimum for reliable remote work. If multiple household members work from home simultaneously, plan for at least 50 Mbps per remote worker.
Best for Large Families (5+ Users, 10+ Devices)
Households with 5 or more people using the internet simultaneously should target plans with 500 Mbps or faster downloads. CenturyLink offers plans up to 940 Mbps, while EarthLink goes up to 5 Gbps. Consider the total number of connected devices -- the average U.S. household now has 15-20 internet-connected devices including smart TVs, phones, tablets, laptops, gaming consoles, smart speakers, security cameras, and smart home devices. Each device consumes bandwidth even when not actively in use.
Best for Budget-Conscious Shoppers
CenturyLink starts at $50, while EarthLink starts at $50. Factor in equipment fees, installation costs, and potential price increases after the first year when calculating the true 2-year cost of each provider. To find the best value, calculate the cost per Mbps: divide the monthly price by the download speed to see which plan delivers the most bandwidth per dollar.
Frequently Asked Questions: CenturyLink vs. EarthLink
Is CenturyLink or EarthLink faster?
CenturyLink offers download speeds of 200 Mbps - 940 Mbps, while EarthLink provides 100 Mbps - 5 Gbps. The speed range and technology type mean real-world performance can vary by location and time of day. Upload speeds also differ significantly: CenturyLink provides Up to 940 Mbps (fiber) while EarthLink offers Up to 5 Gbps (fiber).
Which is cheaper, CenturyLink or EarthLink?
CenturyLink plans start at $50/mo and EarthLink starts at $50/mo. However, the cheapest plan is not always the best value -- compare the speed you receive per dollar spent, and factor in equipment rental fees (Wi-Fi router included on fiber plans) and installation charges for the true monthly cost.
Does CenturyLink or EarthLink have data caps?
CenturyLink does not impose data caps on any plan, so you can use as much data as you need. EarthLink also has no data caps, giving you unlimited usage.
Do CenturyLink or EarthLink require contracts?
CenturyLink does not require any contract -- you can cancel anytime without penalty. EarthLink also operates on a month-to-month basis with no contract required. Contract-free plans offer more flexibility if you may move or want to switch providers based on service quality.
Which is better for gaming, CenturyLink or EarthLink?
For gaming, fiber connections deliver the lowest latency (1-5ms), making CenturyLink the better choice for competitive gaming where milliseconds matter. Look for plans with at least 100 Mbps download speed and under 30ms latency. Upload speed matters for streaming gameplay on Twitch or YouTube.
Can I get both CenturyLink and EarthLink at my address?
CenturyLink is available in 36 states (regional) and EarthLink covers All 50 states (national). Availability varies by specific address even within a provider's service area. Visit each provider's website and enter your street address to confirm availability, or their sales line for the most accurate information about your location.
How does installation work for CenturyLink vs. EarthLink?
CenturyLink: Self-install for DSL (modem shipped free). Fiber requires pro install (free, 2-3 hours). EarthLink: Pro install for fiber. DSL self-install available. Fixed wireless gateway ships. Factor in installation fees, scheduling wait times, and equipment requirements when choosing between these providers.
Final Verdict: CenturyLink vs. EarthLink (2026)
| Category | Winner | Why |
|---|---|---|
| Speed | CenturyLink | Higher maximum speeds and wider range of plan tiers |
| Price | CenturyLink | Lower starting price for comparable speed tiers |
| No Contracts | Tie -- both contract-free | Month-to-month flexibility without early termination penalties |
| No Data Caps | Tie -- both unlimited | Unlimited data usage without throttling or overage fees |
| Customer Service | CenturyLink | Better support availability and self-service options |
| Upload Speed | Tie | Faster uploads for video calls, cloud backups, and content creation |
Bottom line: For most households, the best choice between CenturyLink and EarthLink depends on your priorities. If you value maximum speed, low latency, and symmetric upload performance, the fiber-based option delivers the best overall experience. If budget is your primary concern, compare the cost per Mbps at each speed tier to find the best value. If flexibility matters most, the contract-free provider with no data caps minimizes your financial risk.
Regardless of which provider you choose, start by confirming availability at your specific address, then select a plan that matches your household's actual usage patterns. You can always upgrade later if your needs change. Check both providers' websites for any current promotions or special offers that could reduce your first-year costs.
