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#1 Recommended Plan
AT&T 
Speeds Up To5 Gbps*Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps.Connection: Fiber, IPBB, 5G InternetAvailability: 64.6%LIMITED TIME OFFERLimited Time Deal. Get up to $32 off AT&T Fiber for 12 monthsDisclaimer: “New customers only. $15 savings with 300/500Mb or $32 savings w/ 1Gig or higher plan. Ltd. avail/areas. See details. -
Spectrum 
Speeds Up To2 GbpsSpeeds up to 2G in Select Markets.Speeds up to 2G in Select Markets.Connection: Cable, FiberAvailability: 91.7%Duncan speed tests confirm high speeds for Spectrum -
#1 Satellite Plan
Starlink 
Speeds Up To400 MbpsSpeeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion.Speeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion.Connection: SatelliteAvailability: 100%Why Starlink? Starlink offers a true high-speed alternative to traditional internet providers with easy self-installation, no contracts, and no upfront hardware costs in select areas. -
Viasat 
Speeds Up To150 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
T-Mobile 
Speeds Up To2 GbpsNot available in all areas. Return each device undamaged or fee may apply. AutoPay discount requires bank account or debit card, otherwise $5 more/line/mo. May not be reflected on first bill. See Terms and Conditions (including arbitration provision) at https://fiber.t-mobile.com/legal/terms.Not available in all areas. Return each device undamaged or fee may apply. AutoPay discount requires bank account or debit card, otherwise $5 more/line/mo. May not be reflected on first bill. See Terms and Conditions (including arbitration provision) at https://fiber.t-mobile.com/legal/terms.Connection: FiberAvailability: 10.4% -
Mint Mobile 
Speed Range133 Mbps - 415 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 70.1% -
Verizon 
Speeds Up To300 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 29.6% -
XNET WiFi 
Speeds Up To2 GbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 40.9% -
Open Broadband 
Speeds Up To100 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 41.6% -
Hughesnet 
Speeds Up To50 MbpsNot all internet speeds available in all areas.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100%
Internet Providers in Duncan, SC
Refine your search for better results:
Popular Duncan Internet Deals
| Provider | Featured deal |
|---|---|
| AT&T | Get up to a $200 Reward Card with purchase of AT&T Fiber! Redemption req’d. |
| Spectrum | Get Spectrum Internet® with a free modem, free antivirus software and no data caps! |
| Starlink | Get fast and flexible satellite internet from Starlink for just $55 per month! |
| Viasat | Get $30 off for your first 3 months! Price shown includes promotion; Get $30/mo. off for the first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. |
| Verizon | Get a 43" Class QF QLED Samsung TV or Samsung Galaxy Tab S10 FE 5G on us! |
Duncan Home Internet Providers
| Provider | Plans starting at | Speeds up to | Connections |
|---|---|---|---|
| Spectrum | $30/mo Prices may vary depending on the plan. | 2 Gbps Speeds up to 2G in Select Markets. | Cable, Fiber |
| Mint Mobile | $30/mo Prices may vary depending on the plan. | 133 Mbps - 415 Mbps Not all internet speeds available in all areas. | 5G Internet |
| AT&T | $35/mo Price is per month, plus taxes. Price after discounts: 20% off w/elig wireless svc. and $10/mo w/elig Autopay & Paperless bill. Discounts start w/in 2 bills. | 5 Gbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. | Fiber, IPBB, 5G Internet |
| T-Mobile | $35/mo Prices may vary depending on the plan. | 2 Gbps Not available in all areas. Return each device undamaged or fee may apply. AutoPay discount requires bank account or debit card, otherwise $5 more/line/mo. May not be reflected on first bill. See Terms and Conditions (including arbitration provision) at https://fiber.t-mobile.com/legal/terms. | Fiber |
| Verizon | $35/mo Prices may vary depending on the plan. | 300 Mbps Not all internet speeds available in all areas. | 5G Internet |
| Hughesnet | $39.99/mo Prices may vary depending on the plan. | 50 Mbps Not all internet speeds available in all areas. | Satellite |
| Open Broadband | $49.99/mo Prices may vary depending on the plan. | 100 Mbps Not all internet speeds available in all areas. | Fixed Wireless |
| Starlink | $55/mo Prices may vary depending on the plan. | 400 Mbps Speeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion. | Satellite |
| XNET WiFi | $65/mo Prices may vary depending on the plan. | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
| Viasat | $69.99/mo Price shown includes promotion; Get $30/mo. off for first 3 months. For new customers only. You must mention this offer when ordering service to receive the discount. | 150 Mbps Not all internet speeds available in all areas. | Satellite |
Best Internet Providers in Duncan, SC
AT&T Fiber is the best overall internet provider in Duncan, South-Carolina. AT&T Fiber covers 64.6% of the city and offers symmetrical speeds up to 5 Gbps for plans starting at $35 per month. If AT&T Fiber is unavailable, Spectrum is an excellent alternative reaching 91.7% of the area.
| Provider | Why they're great | Who they're great for |
|---|---|---|
| AT&T | Fastest provider | For customers with lots of devices and competitive gamers, AT&T Fiber provides the extreme speeds needed to handle heavy daily internet use. |
| Spectrum | Cheapest provider | Spectrum is ideal for budget-conscious shoppers looking for entry-level plans that offer reliable everyday connectivity at an affordable rate. |
| T-Mobile | Symmetrical fiber speeds | Content creators and remote professionals who rely on matching upload and download speeds for lag-free video calls will find T-Mobile Fiber perfect. |
| Verizon | Excellent bundle savings | Current Verizon wireless customers can slash their bills and maximize their savings by combining their mobile plan with Verizon 5G Home Internet. |
| XNET WiFi | Easy installation | XNET WiFi is perfect for customers who want instant internet without the wait, featuring a simple plug-and-play setup that takes under five minutes. |
Duncan Cheapest Internet Plans
Spectrum is the cheapest internet provider in Duncan, South-Carolina. Spectrum plans start at just $30 per month and deliver download rates up to 2 Gbps. Mint Mobile is a budget-friendly 5G alternative also starting at $30 per month, covering 70.1% of the city.
| Provider | Plan name | Price | Speeds up to |
|---|---|---|---|
| Spectrum | Spectrum Internet® Advantage | $30/mo Prices may vary depending on the plan. | 100 Mbps Speeds up to 2G in Select Markets. |
| Mint Mobile | 3-month w/ Mint Phone Plan | $30/mo Prices may vary depending on the plan. | 415 Mbps Not all internet speeds available in all areas. |
| AT&T | Internet 300 | $35/mo Price is per month, plus taxes. Price after discounts: 20% off w/elig wireless svc. and $10/mo w/elig Autopay & Paperless bill. Discounts start w/in 2 bills. | 300 Mbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. |
| T-Mobile | Fiber 300 | $35/mo Prices may vary depending on the plan. | 300 Mbps Not available in all areas. Return each device undamaged or fee may apply. AutoPay discount requires bank account or debit card, otherwise $5 more/line/mo. May not be reflected on first bill. See Terms and Conditions (including arbitration provision) at https://fiber.t-mobile.com/legal/terms. |
| Verizon | Verizon Home Internet Lite | $35/mo Prices may vary depending on the plan. | 25 Mbps Not all internet speeds available in all areas. |
Fastest Internet Providers in Duncan, SC
AT&T Fiber is the fastest internet provider in Duncan, South-Carolina. Delivering massive symmetrical speeds up to 5 Gbps, AT&T Fiber easily handles demanding households. If AT&T Fiber is out of reach, Spectrum provides the next fastest alternative with reliable cable connections up to 2 Gbps reaching 91.7% of the city.
| Provider | Speeds up to | Connection type |
|---|---|---|
| AT&T | 5 Gbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. | Fiber |
| Spectrum | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
| T-Mobile | 2 Gbps Not available in all areas. Return each device undamaged or fee may apply. AutoPay discount requires bank account or debit card, otherwise $5 more/line/mo. May not be reflected on first bill. See Terms and Conditions (including arbitration provision) at https://fiber.t-mobile.com/legal/terms. | Fiber |
| XNET WiFi | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
| Mint Mobile | 133 Mbps - 415 Mbps Not all internet speeds available in all areas. | 5G Internet |
Compare Top Providers in Your Area
- AT&T Internet vs. Spectrum
- AT&T Internet vs. T-Mobile 5G Home Internet
- AT&T Internet vs. Verizon 5G Home Internet
- Hughesnet vs. Viasat Internet
- Hughesnet vs. T-Mobile 5G Home Internet
- Hughesnet vs. Verizon 5G Home Internet
- Spectrum vs. T-Mobile 5G Home Internet
- Spectrum vs. Verizon 5G Home Internet
- Starlink vs. Viasat Internet
- T-Mobile 5G Home Internet vs. Verizon 5G Home Internet
- Viasat Internet vs. T-Mobile 5G Home Internet
- Viasat Internet vs. Verizon 5G Home Internet
Check Your Current Speed
Internet Availability in Duncan, SC
Spectrum offers the highest widespread availability among wired network providers in Duncan, South-Carolina. Spectrum connects 91.7% of the city to robust internet plans starting at $30 per month. If you reside outside the cable footprint, Viasat Internet ensures everyone stays online by blanketing 100.0% of the area with satellite service.
| Connection type | Provider with most coverage | Duncan availability | Starting price |
|---|---|---|---|
| Satellite | Starlink | 100% | $55/mo |
| Cable | Spectrum | 91.7% | $30/mo |
| 5G Internet | Mint Mobile | 70.1% | $30/mo |
| Fixed Wireless | Open Broadband | 41.6% | $49.99/mo |
| DSL | AT&T Internet | 38.3% | $60/mo |
| Fiber | Spectrum | 0.7% | $0/mo |
Duncan Internet Stats
| Average internet monthly cost | Available speed ranges | Available price range | Available connection types |
|---|---|---|---|
| $67.08 | 12 Mbps - 5 Gbps | $30/mo - $175/mo | 5G Internet, Cable, DSL, Fiber, Fixed Wireless, Satellite |
Internet Coverage Map and Store Locations for Duncan, South Carolina
Methodology
Our provider rankings rely on a rigorous, data-driven framework evaluating over 100 million rows of FCC data to bring transparency to local internet options. We track 8,000+ active plans from 2,000+ providers to cut through marketing jargon. We weigh technical factors against real-world experiences to match you with the best connections actually available at your address:
- Tested Technology: We utilize a fiber-first ranking system, prioritizing high-performance, structurally sound technologies (like fiber and cable) over slower legacy connections.
- Realistic Coverage: We filter out "ghost ISPs" with near-zero availability and actively flag providers that only cover a fraction of neighborhoods, ensuring you don't waste time on unavailable options.
- Transparent Pricing: We track base rates and downgrade providers that rely on hidden fees or sudden price hikes, exposing the true long-term cost beyond initial marketing promotions.
- Verified Speeds: We look beyond deceptive "up to" marketing claims to evaluate the actual download and upload speeds delivered, prioritizing the balanced, symmetrical performance necessary for seamless video calls and heavy streaming.
- User-Driven Personalization: We don't just look at the tech; we look at what people actually prefer. By analyzing millions of local connections, user reviews on downtime, and validated J.D. Power scores, we tailor our rankings to highlight the providers proven to satisfy users in your area.
For a complete breakdown of our scoring weights, independent research, and editorial standards, view our full Methodology page.
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Data valid as of 09/07/2026