- Availability varies by address
- Up to 5,000 Mbps
- Plans from $40/mo
Internet Providers in Charleston, SC
In Charleston, South Carolina, the top internet service providers actively serving residents include AT&T, Xfinity, and Brightspeed, delivering a strong mix of high-speed fiber and reliable cable connections. Currently, fiber internet availability varies by address. To set up your service, contact Fast Communications an authorized dealer at (888) 841-5332.
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All Internet Providers in Charleston
Authorized Dealer
Fiber
Upto 5 GIG
from
/month
- Speeds up to 5 Gig
- Availability varies by address
Authorized Dealer
CABLE
Upto 1.2 GIG
from
/month
- Availability varies by address
- Availability varies by address
Authorized Dealer
Cable
Upto 940 Mbps
from
/month
- Fiber Network
- Availability varies by address
⚡ Fastest Internet Plans
| Provider | Max Speed | Type |
|---|---|---|
| AT&T Fiber | 5 Gbps | Fiber |
| Spectrum | 2 Gbps | Cable |
Plans, speeds, pricing, equipment and promotional terms may vary by location. Check your address for current options.
💰 Cheapest Internet Plans
| Provider | Starts At | Speed |
|---|---|---|
| Spectrum | $30.00 | 100 Mbps |
| AT&T Fiber | $50.00 | 300 Mbps |
Plans, speeds, pricing, equipment and promotional terms may vary by location. Check your address for current options.
Compare All Providers
Fiber vs. cable internet in Charleston
f you’re looking for the best internet providers in Charleston, SC, both AT&T Fiber and Brightspeed offer fiber service across parts of the city. Right now, roughly 54% of Charleston has access to fiber internet, with strong coverage near downtown and the Historic District, while Xfinity cable covers the broader Lowcountry metro.
When comparing internet providers in Charleston, SC, fiber is the best choice for fast uploads, downloads, and reliable performance. This bandwidth is especially valuable for a city with a strong tourism, port logistics, and growing tech workforce along the South Carolina coast.
A stable fiber connection keeps video calls, cloud backups, online gaming, and 4K streaming running smoothly across Charleston’s mix of historic neighborhoods and barrier island suburbs. Whether you need home or business service, internet providers in Charleston, SC offer plans for every budget and speed requirement.
Check your address
Availability varies
Check your address
Availability varies
Neighborhoods in Charleston
Frequently Asked Questions
AT&T Fiber offers the fastest internet in Charleston, with plans reaching up to 5 Gbps.
Internet in Charleston starts around $45/month for Xfinity entry-level cable plan. Fiber plans from Brightspeed and AT&T start around $49-55/month.
Yes, fiber internet is available to approximately 54% of Charleston households, with AT&T as the primary fiber provider.
Fiber is widely available in the Historic District, West Ashley, and North Central. Coverage continues expanding into James Island and surrounding suburbs.
Xfinity offers the lowest starting price in Charleston at around $45/month for 300 Mbps cable.
Fiber At Your Address
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Internet Coverage in Charleston, SC
Coverage percentages reflect citywide availability; actual options depend on your specific address.
Data sourced from BroadbandNow Research, 2026, cross-checked against our provider review process. Last verified: October 2026.
