BroadbandNow is supported by commissions from some of the providers listed on our site. Learn More

Internet Providers in Charleston, South Carolina

Filter by zip:

About BroadbandNow’s Internet Service Data
BroadbandNow has the most accurate and comprehensive internet service coverage data on the web. Our data sources include the Federal Communications Commission (FCC), user speed tests and coverage data form internet service providers. In addition, we independently source and validate plan and pricing data.

Home Internet in Charleston, SC

  • 1. AT&T
    Speeds Up To
    5 Gbps
    See *
    Connection: IPBB, Fiber, 5G Internet
    Availability: 83.6%
    Charleston speed tests confirm high speeds for AT&T Internet
  • 2. Xfinity
    Speeds Up To
    2 Gbps
    * See **
    Connection: Cable
    Availability: 93.3%
    Charleston speed tests confirm high speeds for Xfinity
  • 3. Viasat
    Speeds Up To
    150 Mbps
    * See **
    Connection: Satellite
    Availability: 100%
  • 4. EarthLink
    Speeds Up To
    100 Mbps
    * See **
    Connection: 5G Internet
    Availability: 63.4%
  • 5. HughesNet
    Speeds Up To
    100 Mbps
    * See **
    Connection: Satellite
    Availability: 100%
  • 6. Home Telecom
    Speeds Up To
    1 Gbps
    * See **
    Connection: Fiber
    Availability: 7.3%
  • 7. WOW!
    Speeds Up To
    1.2 Gbps
    * See **
    Connection: Cable
    Availability: 58.8%
    Charleston speed tests confirm high speeds for WOW!
  • 8. Starlink
    Download Speeds:
    50 - 220 Mbps
    * See **
    Connection: Satellite
    Availability: 100%
  • 9. Verizon
    Speeds Up To
    50 Mbps
    * See **
    Connection: 5G Internet
    Availability: 33.1%
  • Always ON
    Download Speeds:
    25 - 150 Mbps
    * See **
    Connection: Fixed Wireless
    Availability: 63.4%

Home Internet Summary in Charleston, SC

AT&T Internet dominates Charleston, South Carolina, with IPBB and fiber connections at an 83.60% coverage rate. Offering speeds up to 5 Gbps, the highest locally, it suits users needing fast internet. Plans start at $55 per month, delivering substantial value with its high speeds and wide availability.

Xfinity follows closely, providing cable internet with a 93.30% coverage rate. It offers download speeds up to 2 Gbps. Starting at $30 per month, Xfinity appeals to budget-minded consumers. In Charleston, both cable and fiber connections are widely accessible, ensuring reliable options based on needs and budget.

Best Internet Providers in Charleston, SC

The best internet providers in Charleston are Xfinity, EarthLink, and AT&T Fiber. Xfinity is the best option of the three since it delivers download speeds up to 2 Gbps. Plans start at $30 per month, with multiple bundling options available.

For a great fiber internet option, residents can look to EarthLink’s internet service. It offers download speeds up to , with plans starting at per month. Residents should check if EarthLink is available in their area before making a purchase.

Capable of symmetrical download and upload speeds up to 5 Gbps, AT&T Fiber is a good fiber internet alternative if EarthLink isn’t available. On top of its reliable network and varied bundling options, AT&T ranked first for overall customer satisfaction in 2022 by J.D. Power.

Fastest Internet Providers in Charleston, SC

AT&T is the fastest provider in Charleston, with speeds up to 5 Gbps.

The fastest internet providers in Charleston are AT&T Fiber, Xfinity, and EarthLink. AT&T Fiber delivers symmetrical download and upload speeds up to 5 Gbps. It operates on a fiber network that transmits data faster over longer distances than other wired connections like DSL and cable.

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 speed. It’s the next best option if fiber internet is unavailable in your neighborhood.

In case AT&T Fiber or Xfinity isn’t available, EarthLink delivers download speeds up to through its fiber network. It’s a decent choice for residents wanting gigabit internet speeds for their household.

What’s a Good Internet Speed?

Internet Speed Appropriate For Providers in your Area offering this Speed Availability in your Area
25 Mbps
  • Email
  • Web browsing
  • Light streaming
  • Smaller households
  • Always ON
63.43%
100 Mbps
  • Streaming
  • Video chat
  • Online gaming
  • Larger households
  • Viasat
  • EarthLink
  • HughesNet
  • Starlink
100%
1000 Mbps (1 Gbps)
  • Heavy streaming (4K video
  • multiple devices
  • etc.)
  • Video chat
  • Lag-free gaming
  • Large households
  • AT&T
  • Xfinity
  • Home Telecom
  • WOW!
93.33%

Learn more about internet speeds:

Internet Availability in Charleston, SC

Charleston residents can choose from 11 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 38.9% 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 58.8% of the city, it features strong coverage to homes on the northeast of the Stono River and both sides of the Ashley River.

Internet Provider Store Locations in Charleston, SC

Provider Connection Types in Charleston, SC

Connection Type About this Connection Type Availability in Charleston, SC
Satellite
  • Available even in very rural areas
  • Typically has high latency (lag)
100%
DSL
  • Typically about 100 Mbps
  • Slower than Cable or Fiber
53.779999999999994%
Cable
  • Typically 250 Mbps - 1 Gbps
  • Widely available
  • A good choice for most users
93.32000000000001%
Fiber
  • Typically 1 Gbps or faster
  • Upload speeds match download speeds
39.410000000000004%

List of Internet Providers in Charleston, SC

Provider Type Top Speed
AT&T IPBB, Fiber, 5G Internet 5 Gbps
Xfinity Cable 2 Gbps
Viasat Satellite 150 Mbps
EarthLink 5G Internet 100 Mbps
HughesNet Satellite 100 Mbps
Home Telecom Fiber 1 Gbps
WOW! Cable 1.2 Gbps
Starlink Satellite 220 Mbps
Verizon 5G Internet 50 Mbps
Always ON Fixed Wireless 25 Mbps

Internet Providers in Charleston, SC

Provider Plans Starting At Speeds Up To Connections
AT&T Internet $55/mo Prices may vary depending on the plan 5 Gbps Ltd. avail/areas. Speeds vary, not g’td. Single devices wired speed maximum 4.7Gbps. IPBB, Fiber, 5G Internet
Xfinity $30/mo Prices may vary depending on the plan 2 Gbps *Not all internet speeds available in all areas. Cable
Viasat Internet $129.99/mo Prices may vary depending on the plan 150 Mbps *Not all internet speeds available in all areas. Satellite
EarthLink 5G Home Internet $39.95/mo Prices may vary depending on the plan 100 Mbps *Not all internet speeds available in all areas. 5G Internet
Hughesnet $49.99/mo Prices may vary depending on the plan 100 Mbps *Not all internet speeds available in all areas. Satellite
Home Telecom $69.95/mo Prices may vary depending on the plan 1 Gbps *Not all internet speeds available in all areas. Fiber
WOW! $25/mo Prices may vary depending on the plan 1.2 Gbps *Not all internet speeds available in all areas. Cable
Starlink $120/mo Prices may vary depending on the plan 220 Mbps *Not all internet speeds available in all areas. Satellite
Verizon $50/mo Prices may vary depending on the plan 50 Mbps *Not all internet speeds available in all areas. 5G Internet
Always ON $60/mo Prices may vary depending on the plan 25 Mbps *Not all internet speeds available in all areas. Fixed Wireless

Are you a journalist or researcher writing about this topic?

Contact us and we'll connect you with a broadband market expert on our team who can provide insights and data to support your work.