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#1 Recommended Plan
Spectrum 
Price Range $30 - $140Prices may vary depending on the plan.Speeds Up To2 GbpsSpeeds up to 2G in Select Markets.Prices may vary depending on the plan.Speeds up to 2G in Select Markets.Connection: Fiber PoweredAvailability: 33%Why Spectrum? Spectrum’s plans, with no contracts, no data caps and no hidden fees, make it an affordable option for most homes. -
AT&T 
Price Range $50 - $110*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.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: 80% -
Xfinity 
Price Range $30 - $100Prices may vary depending on the plan.Speed Range300 Mbps - 2.2 GbpsNot all internet speeds available in all areas.Prices may vary depending on the plan.Not all internet speeds available in all areas.Connection: CableAvailability: 99.7% -
#1 Satellite Plan
Starlink 
Price Range $55 - $175Prices may vary depending on the plan.Speeds Up To400 MbpsSpeeds referenced are maximum available speeds, are not guaranteed, and will be slower during times of congestion.Prices may vary depending on the plan.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. -
T-Mobile 
Price Range $20 - $70Prices may vary depending on the plan.Speed Range170 Mbps - 498 MbpsRely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 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.Prices may vary depending on the plan.Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 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: 87.4% -
Viasat 
Price Range $69.99 - $109.99Price 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.Speeds Up To200 MbpsNot all internet speeds available in all areas.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.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100% -
Mint Mobile 
Price Range $30 - $45Prices may vary depending on the plan.Speed Range133 Mbps - 415 MbpsNot all internet speeds available in all areas.Prices may vary depending on the plan.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 90.8% -
Verizon 
Price Range $35 - $75Prices may vary depending on the plan.Speeds Up To300 MbpsNot all internet speeds available in all areas.Prices may vary depending on the plan.Not all internet speeds available in all areas.Connection: 5G InternetAvailability: 27.7% -
XNET WiFi 
Price Range $65 - $140Prices may vary depending on the plan.Speeds Up To2 GbpsNot all internet speeds available in all areas.Prices may vary depending on the plan.Not all internet speeds available in all areas.Connection: Fixed WirelessAvailability: 73.8% -
Hughesnet 
Price Range $39.99 - $94.99Prices may vary depending on the plan.Speeds Up To100 MbpsNot all internet speeds available in all areas.Prices may vary depending on the plan.Not all internet speeds available in all areas.Connection: SatelliteAvailability: 100%
Internet Providers in Sullivans Island, SC
Refine your search for better results:
Popular Sullivans Island Internet Deals
| Provider | Featured deal |
|---|---|
| Spectrum | Get Spectrum Internet® with a free modem, free antivirus software and no data caps! |
| AT&T | Save up to $30/mo for 12 mos. when you get AT&T Fiber Internet! Redemption req’d. |
| Xfinity | No contract, no commitment, & Wi-Fi equipment included for $45/mo for 5 years. With no term contract — Wi-Fi equipment included |
| Starlink | Get fast and flexible satellite internet from Starlink for just $55 per month! |
| T-Mobile | Get up to $200 back when you sign up for T-Mobile 5G Home Internet. |
Sullivans Island Home Internet Providers
| Provider | Plans starting at | Speeds up to | Connections |
|---|---|---|---|
| T-Mobile | $20/mo Prices may vary depending on the plan. | 170 Mbps - 498 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 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 |
| Spectrum | $30/mo Prices may vary depending on the plan. | 2 Gbps Speeds up to 2G in Select Markets. | Fiber Powered |
| Xfinity | $30/mo Prices may vary depending on the plan. | 300 Mbps - 2.2 Gbps Not all internet speeds available in all areas. | Cable |
| 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 |
| 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. | 100 Mbps Not all internet speeds available in all areas. | Satellite |
| AT&T | $50/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 |
| 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. | 200 Mbps Not all internet speeds available in all areas. | Satellite |
Best Internet Providers in Sullivans Island, SC
AT&T Fiber is the top broadband provider in Sullivans-Island. AT&T Fiber offers symmetrical speeds reaching up to 5 Gbps for approximately $50 per month. While Xfinity covers 99.7% of the area with cable technology, AT&T Fiber delivers superior fiber performance for residents within the 80.0% of the city it serves.
| 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. |
| Xfinity | Generous sign-up perks | Xfinity is an excellent choice for new customers looking to maximize savings and entertainment with plans that include free premium streaming. |
| T-Mobile | Cheapest provider | Budget-conscious customers securing reliable Wi-Fi at a low rate by bundling with a mobile line will find top value in T-Mobile 5G Home Internet. |
| 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 | 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. |
Sullivans Island Cheapest Internet Plans
Mint Mobile provides the most affordable internet service in Sullivans-Island. Plans from Mint Mobile start at $30 per month with download rates up to 415 Mbps. Budget-conscious shoppers might also consider AT&T Fiber, which offers faster symmetrical speeds starting at $50 per month and covers 80.0% of the city.
| Provider | Plan name | Price | Speeds up to |
|---|---|---|---|
| T-Mobile | Home Internet Backup | $20/mo Prices may vary depending on the plan. | 318 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 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. |
| Spectrum | Spectrum Internet 100 | $30/mo Prices may vary depending on the plan. | 100 Mbps Speeds up to 2G in Select Markets. |
| Xfinity | NOW Internet | $30/mo Prices may vary depending on the plan. | 100 Mbps Not all internet speeds available in all areas. |
| 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. |
| 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 Sullivans Island, SC
AT&T Fiber delivers the fastest internet speeds in Sullivans-Island. Residents can access symmetrical speeds up to 5 Gbps across 80.0% of the city. XNET WiFi serves as a secondary high-speed alternative, offering downloads up to 2 Gbps for prices starting at $65 per month.
| 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 |
| Xfinity | 300 Mbps - 2.2 Gbps Not all internet speeds available in all areas. | Cable |
| Spectrum | 2 Gbps Speeds up to 2G in Select Markets. | Cable |
| XNET WiFi | 2 Gbps Not all internet speeds available in all areas. | Fixed Wireless |
| T-Mobile | 170 Mbps - 498 Mbps Rely, All-In, and Amplified Internet plans can experience fast speeds with T-Mobile’s latest 5G gateway, delivering typical download speeds between 170 Mbps – 498 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 |
Compare Top Providers in Your Area
- AT&T Internet vs. Xfinity
- 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
Check Your Current Speed
Internet Availability in Sullivans Island, SC
Xfinity maintains the widest broadband footprint in Sullivans-Island. Xfinity cable services reach 99.7% of the city with download speeds up to 2 Gbps for $30 per month. Viasat Internet also provides total coverage across 100.0% of the area via satellite, though Xfinity offers much lower latency and higher speeds.
| Connection type | Provider with most coverage | Sullivans Island availability | Starting price |
|---|---|---|---|
| Satellite | Hughesnet | 100% | $39.99/mo |
| Cable | Xfinity | 99.7% | $30/mo |
| 5G Internet | Mint Mobile | 90.8% | $30/mo |
| Fiber | AT&T Fiber | 80% | $50/mo |
| Fixed Wireless | XNET WiFi | 73.8% | $65/mo |
| DSL | AT&T Internet | 18.7% | $60/mo |
Sullivans Island Internet Stats
| Average internet monthly cost | Available speed ranges | Available price range | Available connection types |
|---|---|---|---|
| $67.16 | 12 Mbps - 5 Gbps | $20/mo - $175/mo | 5G Internet, Cable, DSL, Fiber, Fixed Wireless, Satellite |
Internet Coverage Map and Store Locations for Sullivans Island, 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 11/09/2026