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#1 Recommended Plan
1. AT&T 
Speeds Up To5 GbpsLtd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps.Connection: Fiber, IPBB, 5G InternetAvailability: 83.8%Why AT&T? AT&T Fiber's symmetrical gigabit speeds make it the ideal choice for busy households with streamers, gamers and remote workers. -
2. EarthLink 
Speeds Up To5 GbpsNot all internet speeds available in all areas.Connection: FiberAvailability: 42.7% -
3. Xfinity 
Speeds Up To2 GbpsNot all internet speeds available in all areas.Connection: CableAvailability: 93.3%Charleston speed tests confirm high speeds for Xfinity -
4. Viasat 
Speeds Up To150 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
5. T-Mobile 
Download Speeds:87 Mbps - 415 MbpsRely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 133 Mbps – 415 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details.Connection: 5G InternetAvailability: 78%Charleston speed tests confirm high speeds for T-Mobile 5G Home Internet -
6. Mint Mobile 
Download Speeds:133 Mbps - 415 MbpsNot all internet speeds available in all areas.Connection: 5G InternetAvailability: 72.2% -
7. Verizon 
Speeds Up To300 MbpsNot all internet speeds available in all areas.Connection: 5G InternetAvailability: 46.7% -
8. XNET WiFi 
Speeds Up To2 GbpsNot all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 68.8% -
Home Telecom 
Speeds Up To1 GbpsNot all internet speeds available in all areas.Connection: FiberAvailability: 7.6% -
10. WOW! 
Speeds Up To1.2 GbpsNot all internet speeds available in all areas.Connection: CableAvailability: 59.3%Charleston speed tests confirm high speeds for WOW! -
11. Starlink 
Speeds Up To350 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
12. Hughesnet 
Speeds Up To100 MbpsNot all internet speeds available in all areas.Connection: SatelliteAvailability: 100%
Internet Providers in Charleston, SC
Refine your search for better results:
Popular Charleston Internet Deals
| Provider | Featured deal | |
|---|---|---|
| AT&T | Get up to a $300 Reward Card with purchase of AT&T Fiber! Redemption req’d. |
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| Xfinity | Get reliable 300 Mbps internet with an Unlimited mobile line for $40/mo for 5 years! With no term contract — Wi-Fi equipment included |
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| 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. |
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| T-Mobile | Limited time. Get a $300 rebate (via virtual prepaid Mastercard) when you activate a new T-Mobile Internet line on an eligible All-In Home Internet plan! |
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| Verizon | Get a 43" Class QF QLED Samsung TV or Samsung Galaxy Tab S10 FE 5G on us! |
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Charleston Home Internet Providers
| Provider | Plans starting at | Speeds up to | Connections | |
|---|---|---|---|---|
| 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 |
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| WOW! | $30/mo Prices may vary depending on the plan. | 1.2 Gbps Not all internet speeds available in all areas. | Cable |
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| AT&T | $34/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 |
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| Verizon | $35/mo Prices may vary depending on the plan. | 300 Mbps Not all internet speeds available in all areas. | 5G Internet |
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| EarthLink | $39.95/mo Prices may vary depending on the plan. | 5 Gbps Not all internet speeds available in all areas. | Fiber |
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| Hughesnet | $39.99/mo Prices may vary depending on the plan. | 100 Mbps Not all internet speeds available in all areas. | Satellite |
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| Xfinity | $40/mo Prices may vary depending on the plan. | 2 Gbps Not all internet speeds available in all areas. | Cable |
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| T-Mobile | $50/mo Prices may vary depending on the plan. | 87 Mbps - 415 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 133 Mbps – 415 Mbps. 25% of our customers see speeds below and 25% see speeds above these ranges. T-Mobile Home Internet is delivered via 5G cellular network and speeds vary due to factors affecting cellular networks. See https://t-mobile.com/OpenInternet for additional details. | 5G Internet |
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| XNET WiFi | $65/mo Prices may vary depending on the plan. | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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| Home Telecom | $69.95/mo Prices may vary depending on the plan. | 1 Gbps Not all internet speeds available in all areas. | Fiber |
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| 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 |
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| Starlink | $80/mo Prices may vary depending on the plan. | 350 Mbps Not all internet speeds available in all areas. | Satellite |
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Best Internet Providers in Charleston, SC
The best internet providers in Charleston are AT&T Fiber, Xfinity and WOW! AT&T Fiber is the best option of the three because it delivers symmetrical speeds up to 5 Gbps. AT&T is also known for offering contract-free plans without data caps, which are an ideal choice for large households with power internet customers. AT&T's fast speeds and strong customer satisfaction have made the provider a favorite among customers. In J.D. Power's 2024 U.S. Residential Internet Service Provider Satisfaction Study, AT&T secured the highest ranking in the North Central and West regions. Charleston residents who live in AT&T Fiber's coverage areas can sign up for internet-only plans that start as low as $34 per month.
Xfinity is the next-best internet provider in Charleston, with cable internet plans that start at $40 per month. Similar to AT&T Fiber, Xfinity provides bundle deals for internet, TV, home security and mobile services. Xfinity offers exclusive promotions, such as a free Xfinity Mobile Unlimited line, a free Getting Started kit and free shipping to both new and existing customers. Between AT&T Fiber and Xfinity, Xfinity offers more accessibility for Charleston residents. Xfinity speeds are also worth considering, especially since they can reach up to 2 Gbps.
WOW! is another cable internet provider in the city, providing download speeds up to 1 Gbps. Customers who sign up for WOW! internet plans can get a free self-install kit, adding to their overall savings. WOW! also offers limited-time promotions for new customers such as Visa Rewards Cards and discounts on bundles. WOW!'s plans are reasonably priced, with the cheapest plans starting at $30 per month.
| 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. |
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| Xfinity | Widely available | Customers in [city] and beyond who want a highly dependable internet option will appreciate that Xfinity maintains a huge nationwide network. |
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| T-Mobile | Easy installation | T-Mobile 5G Home Internet is perfect for customers who want to skip the technician and get online in minutes with a simple, app-guided setup. |
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| XNET WiFi | No annual contracts | Digital nomads and renters who want high-speed internet without the burden of long-term contracts will find XNET WiFi to be a top choice. |
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| WOW! | Generous sign-up perks | New customers wanting to maximize their move-in budget and savings with high-value reward cards and free installation will love WOW!. |
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Charleston Cheapest Internet Plans
Budget-conscious customers in Charleston score the lowest monthly rates with WOW!. Its plans start at just $30 per month, slightly cheaper than top-rated AT&T Fiber, which begins at $34 per month. While WOW! delivers speeds up to 1 Gbps, upgrading to AT&T Fiber offers excellent symmetrical speeds.
| Provider | Plan name | Price | Speeds up to | |
|---|---|---|---|---|
| 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. |
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| WOW! | Internet 300 | $30/mo Prices may vary depending on the plan. | 300 Mbps Not all internet speeds available in all areas. |
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| AT&T | Internet 100 | $34/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. | 100 Mbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7 Gbps. |
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| Verizon | Verizon Home Internet Lite | $35/mo Prices may vary depending on the plan. | 25 Mbps Not all internet speeds available in all areas. |
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| EarthLink | EarthLink Fiber 1 Gig | $39.95/mo Prices may vary depending on the plan. | 1 Gbps Not all internet speeds available in all areas. |
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Fastest Internet Providers in Charleston, SC
The fastest internet providers in Charleston are AT&T Fiber, Xfinity and WOW! AT&T Fiber delivers symmetrical speeds because it operates on a fiber network that transmits data faster over longer distances than other wired connections such as DSL and cable. It also doesn't have data caps to tamper with its performance, making AT&T Fiber ideal for streamers and gamers.
Xfinity is the second-fastest internet provider in Charleston. With download speeds up to 2 Gbps on a cable connection, Xfinity provides vast coverage across Charleston at a small cost of internet speeds. Xfinity is the next best option if fiber internet is unavailable in your neighborhood. Xfinity does impose a data cap on plans, though it's generous and unlikely that casual customers will hit its cap often.
Lastly, WOW! is another contender for fast internet in Charleston, with download speeds up to 1 Gbps. Like Xfinity, WOW! is a cable internet provider, which means it doesn't have symmetrical speeds. However, the provider is a great alternative if neither AT&T Fiber nor Xfinity are available and you're looking for gigabit speeds over a wired connection.
| 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 |
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| EarthLink | 5 Gbps Not all internet speeds available in all areas. | Fiber |
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| Xfinity | 2 Gbps Not all internet speeds available in all areas. | Cable |
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| XNET WiFi | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
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| WOW! | 1.2 Gbps Not all internet speeds available in all areas. | Cable |
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Compare Top Providers in Your Area
- AT&T Internet vs. WOW!
- AT&T Internet vs. Xfinity
- AT&T Internet vs. T-Mobile 5G Home Internet
- AT&T Internet vs. Verizon 5G Home Internet
- EarthLink vs. Xfinity
- EarthLink vs. AT&T Internet
- Hughesnet vs. Viasat Internet
- Hughesnet vs. T-Mobile 5G Home Internet
- Hughesnet 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
Check Your Current Speed
What's a Good Internet Speed?
| Internet speed | Appropriate for | Providers in your area offering this speed | Availability in your area |
|---|---|---|---|
| 100 Mbps |
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100% |
| 1000 Mbps (1 Gbps) |
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93.3% |
Internet Availability in Charleston, SC
Charleston residents can choose from [count-providers] providers to access a reliable internet connection, but how do you know which one will work for your home? The Holy City features top providers for both fiber and cable services, with Xfinity featuring the widest availability covering 93.3% of the city.
AT&T Fiber features sporadic coverage across the inlet of the Ashley River, covering 42.7% of the city. Residents located near Whitehouse Plantation and Stiles Point can access the provider's fiber service too. Foley Beach and Sullivan's Island lack coverage near the shoreline, as do inland locations, such as Cherokee Place and the Charleston Air Force Base.
Xfinity's cable internet fills in more than enough gaps in AT&T Fiber's coverage. With coverage on Foley Beach and plenty of service near the Air Force Base, unlike AT&T Fiber, the provider boasts sweeping availability from the shoreline to Weatherstone. Unfortunately, service in Long Island, Goat Island, and along Lighthouse Creek is unavailable.
Another cable provider in Charleston worth mentioning is WOW! While the provider only covers 59.3% of the city, it features strong coverage to homes on the northeast of the Stono River and both sides of the Ashley River.
| Connection type | Provider with most coverage | Charleston availability | Starting price | |
|---|---|---|---|---|
| Satellite | Hughesnet | 100% | $39.99/mo |
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| Cable | Xfinity | 93.3% | $40/mo |
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| DSL | AT&T Internet | 83.8% | $60/mo |
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| 5G Internet | AT&T Internet Air | 74.3% | $65/mo |
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| Fixed Wireless | XNET WiFi | 68.8% | $65/mo |
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| Fiber | AT&T Fiber | 42.7% | $34/mo |
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Charleston Internet Stats
| Average internet monthly cost | Available speed ranges | Available price range | Available connection types |
|---|---|---|---|
| $90.2 | 12 Mbps - 8 Gbps | $20/mo - $599.99/mo | 5G Internet, Cable, DSL, Fiber, Fixed Wireless, Satellite |
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Fastest Speed
AT&T FiberFiber
Internet 5000$235/mo*Price is per month, plus taxes. Elig. wireless svc. req'd. and after AutoPay & Paperless bill discount. Ltd. avail/areas. See offer details
Save 20% with Eligible AT&T Wireless Plan | $400 Visa Reward Card-
Download Speeds up to 5 Gbps
Show Details -
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Best Value
AT&T FiberFiber
Internet 1000$70/mo*Price is per month, plus taxes. Elig. wireless svc. req'd. and after AutoPay & Paperless bill discount. Ltd. avail/areas. See offer details
Save 20% with Eligible AT&T Wireless Plan | $200 Visa Reward Card-
Download Speeds up to 1 Gbps
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Great for multiplayer gaming and remote work
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Lowest Price
WOW!Cable
Internet 300$30/mo*Taxes & fees extra and subj. to change. See disclaimer for details. Restrictions apply.
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Download Speeds up to 300 Mbps
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Best for surfing, shopping, and smaller families
Show Details -
Internet Coverage Map and Store Locations for Charleston, 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.
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Data valid as of 03/25/2026