State Guide • Updated January 2026

Best Internet Providers in Colorado

Colorado's tech-forward population enjoys high-speed options. Quantum Fiber (CenturyLink) offers 8 Gig speeds in Denver. Municipal broadband like Nextlight in Longmont serves as a national model. Xfinity blankets the state for cable.

Best Overall
Quantum Fiber

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

Fastest Speeds
Quantum 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 Colorado

Quantum Fiber

4.6/5

Starting at

$50/mo

Max Speeds

8 Gbps

Check Availability

Pros

  • Price for Life
  • No data caps
  • Symmetrical speeds

Cons

  • Support wait times
  • Limited areas

Xfinity

4.1/5

Starting at

$35/mo

Max Speeds

2 Gbps

Check Availability

Pros

  • Fastest cable speeds
  • Wide coverage
  • Xfinity Mobile

Cons

  • Data caps
  • Contracts

Nextlight (Longmont)

5/5

Starting at

$40/mo

Max Speeds

10 Gbps

Check Availability

Pros

  • Community owned
  • Incredible value
  • Top rated support

Cons

  • Longmont only
  • None really

T-Mobile 5G Home

4.1/5

Starting at

$50/mo

Max Speeds

245 Mbps

Check Availability

Pros

  • Mountain/Rural coverage
  • Simple pricing
  • No contracts

Cons

  • Speed variance
  • 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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