State Guide • Updated January 2026

Best Internet Providers in South Carolina

AT&T Fiber connects Columbia and Charleston with excellent speeds. Spectrum covers most of the state. Lumos is a new entrant pushing 8 Gig speeds. Rural co-ops are filling gaps in the Upstate and Lowcountry.

Best Overall
AT&T Fiber

Wins on reliability, speed consistency, and customer satisfaction ratings.

Fastest Speeds
Lumos Fiber

Delivers the highest peak download speeds available for residential connections.

Best Value
T-Mobile 5G Home

Offering the lowest starting price per Mbps or best contract-free terms.

Top Providers in South Carolina

AT&T Fiber

4.7/5

Starting at

$55/mo

Max Speeds

5 Gbps

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Pros

  • Reliable fiber
  • Symmetrical speeds
  • No data caps

Cons

  • Availability
  • Price

Spectrum

4/5

Starting at

$50/mo

Max Speeds

1 Gbps

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Pros

  • Broad coverage
  • No data caps
  • Easy setup

Cons

  • Price variations
  • Upload speeds

Lumos Fiber

4.5/5

Starting at

$50/mo

Max Speeds

8 Gbps

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Pros

  • Multi-gig innovation
  • 100% Fiber
  • Expansion

Cons

  • New player
  • Limited footprint

T-Mobile 5G Home

4/5

Starting at

$50/mo

Max Speeds

245 Mbps

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Pros

  • Good rural option
  • Price locklike features
  • No contract

Cons

  • Congestion
  • Latency

How Fast is Your Current Internet?

Before upgrading to one of these top providers, find out if you're getting the speeds you're already paying for.

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