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Internet Service Provider Review of Denver

Xfinity is the fastest and best overall provider in Denver, Quantum has the best prices, and T-Mobile gets the best ratings

The Denver area has an outstanding selection of internet service providers (ISPs). Xfinity is the longest-standing provider, with a track record to show for it. Quantum Fiber and T-Mobile are relatively newcomers, but they bring fresh faces and deals to the table. But which is the best? Which is the fastest? Which is right for you?

We took a close look at the area’s internet options and compared providers using real-world performance data from speed tests, a regional customer survey, and a thorough pricing analysis.

2026 Denver Internet Awards

   Best Overall
Xfinity is the best overall provider in Denver with fast and affordable plans.

   Best Value
Quantum Fiber has the best value in Denver, offering the fastest internet speed for the money while keeping plans affordable.

   Fastest
Xfinity is the fastest ISP in Denver, according to over 28,000 unique speed test results.

   Customer’s Choice
T-Mobile received the best customer feedback in Denver.

   Most Trusted
T-Mobile received the highest trust rating from Denver customers.

   Easiest Switch
Xfinity customers reported the easiest experience switching ISPs.

Methodology

Our methodology uses three proprietary datasets to determine ISP quality: performance data gathered from the HighSpeedInternet.com speed test, pricing data from our internet plan index, and customer survey data from our massive annual surveys.

See our detailed methodology for a breakdown on exactly how we determine the best ISPs for each region.

Why Xfinity is the Best Overall in Denver

Xfinity is the best internet provider in Denver because it boasts the area’s fastest speeds while simultaneously maintaining a roster of competitively priced plans. The cherry on top is Xfinity’s excellent customer service and onboarding, providing customers with the easiest internet switch in the Denver area.

Xfinity has proven itself to be the leader in cable internet technology, especially in Denver, as it continues to aggressively adapt its networks to the modern needs of internet service. With the growing availability of fiber internet, it was often speculated that cable internet services like Xfinity would be left behind. You don’t hear any of those theories now, though, as Xfinity’s relentless drive to be on the cutting edge pushes its real-world performance above the nation’s best fiber providers.

“Xfinity is always here for me. No downtime, EVER.”

—Xfinity customer
Aurora, CO

Why Quantum Fiber is the Best Value in Denver

If you want the most bang for your buck on internet service in and around Denver, you can’t do better than Quantum Fiber. You get the best type of internet money can buy, but at the cheapest rate. The best part is Quantum Fiber’s Price for Life guarantee, which promises your monthly plan will not increase as long as you keep your internet service. Rates are currently low, making it an ideal time to lock in a price that will never change.

Quantum Fiber’s 500 Mbps plan is the best bet for your average household. You get everything: 500Mbps speeds, symmetrical upload and download speeds, unlimited data, no contracts, and a monthly rate that will never increase.

Other internet providers can get you close to the same speed for the money, but no other offering is quite as good. Xfinity’s 500 Mbps plan for $55 per month is a great offer, but it doesn’t match Quantum’s lower rate, unlimited data, and lifetime price lock. T-Mobile has an option for $50, but you don’t get the same speed, the fiber performance, or a price lock of any kind.

In fact, Quantum’s 500 Mbps fiber plan isn’t just a good deal in Denver, it’s the best fiber plan in the country. When we applied our methodology to all fiber plans in the U.S., we found this exact plan to be the best. It’s priced like a budget-tier offering, but its specs are anything but. We suggest Denver households get this Quantum Fiber deal while you can.

“It’s great and price lock for life.”

—Quantum Fiber customer
Denver, CO

Best value internet plans in Denver

PlanPriceSpeedDetails
Quantum Fiber 500 Mbps $50/mo.*500Mbps
  • Unlimited data
  • Symmetrical speeds
  • Fiber connection
  • Xfinity 500 Mbps $55/mo.500Mbps
  • 1-yr. price lock
  • No contracts
  • Verizon 5G Home Plus $60/mo.500Mbps
  • Unlimited data
  • No contract
  • T-Mobile Rely Home Internet $50/mo.§415Mbps
  • Unlimited data
  • No contract
  • Find internet providers in Denver

    Enter your zip code to see what’s available in your area.

    Why Xfinity is the Fastest in Denver

    Xfinity customers experience the fastest speeds on average in Denver, according to over 28,000 unique speed test results. Xfinity is constantly reminding us that cable internet still has a long life ahead of it by regularly outpacing the nation’s best fiber ISPs.

    Over the last decade, Xfinity has taken the lead with deploying the latest internet tech, especially if it involves increasing cable internet’s capabilities. The most substantial is the large-scale deployment of DOCSIS 4.0, which Xfinity has been in a frenzy to implement. Just last month, Xfinity announced that full duplex DOCSIS 4.0 compatible amplifiers were active in all major multi-gig markets, bringing the service closer to a truly next-generation cable internet network.

    Xfinity is evolving quickly and bringing the latest and greatest advancements to its customers, and we’re now seeing those efforts placing this provider ahead of the competition.

    “Fast speed and runs all day 24/7. Best choice for internet.”

    —Xfinity customer
    Denver, CO

    Why T-Mobile is the Customer’s Choice in Denver

    Nothing comes above the voice of the customer, and Denver customers love T-Mobile 5G Home Internet, according to our latest survey.

    When we asked 1,200 Denver residents to rate their internet service, T-Mobile received the highest ratings for overall satisfaction, pricing, and customer service, and had the highest average rating.

    Why T-Mobile is the Most Trusted in Denver

    T-Mobile and Verizon nearly tie for the most trusted providers in the Denver area. The simplicity of 5G must certainly help these scores, but we think T-Mobile’s policies played a significant role in the positive customer experience. T-Mobile’s internet plans are simple and straightforward, especially with price. No internet provider is better at eliminating unexpected costs and conditions.

    Verizon customers report the fewest price hikes

    Verizon 5G Home Internet customers reported the fewest price hikes in Denver, which undoubtedly played a part in its outstanding customer trust rating. A huge part of trusting your provider is being able to count on a consistent bill each month with no random increases or fees.

    Why Xfinity is the Easiest Internet Switch in Denver

    Xfinity’s installation and overall onboarding experience is the best and easiest in Denver, according to the customers. Xfinity’s networks have been in the area so long that most residences are already wired for the service. Because Xfinity has invested in excellent network maintenance, those lines rarely need to be serviced, so installation is often as simple as picking a self-install kit and following directions on the app.

    “It’s been convenient and easy.”

    —Xfinity customer
    Aurora, CO

    Disclaimers

    Author -

    Austin worked as a broadband technician installing and troubleshooting countless home internet networks for some of the largest ISPs in the U.S. He became a freelance writer in 2020 specializing in software guides. After graduating with a BS in technical communication from Arizona State University, he joined the team at HighSpeedInternet.com where he focuses on home network improvement and troubleshooting.

    Editor - Jessica Brooksby

    Jessica loves bringing her passion for the written word and her love of tech into one space at HighSpeedInternet.com. She works with the team’s writers to revise strong, user-focused content so every reader can find the tech that works for them. Jessica has a bachelor’s degree in English from Utah Valley University and seven years of creative and editorial experience. Outside of work, she spends her time gaming, reading, painting, and buying an excessive amount of Legend of Zelda merchandise.