Internet Providers in Denver, CO | Fiber & Cable Compared

Fiber internet availability in Denver at a glance

Denver, Colorado has 397,593 residential broadband-serviceable locations. Fiber reaches 64.2% of them at 100/20 Mbps or faster; cable reaches 93.3%. Gigabit service is available to 93.7% across all technologies.

64.2% Fiber available100/20 Mbps or better

48.6% Fiber gigabit1 Gbps or better

93.3% Cable available100/20 Mbps or better

93.7% Gigabit, any tech1 Gbps or better

Denver has 397,593 residential broadband-serviceable locations, per FCC filings as of December 31, 2025.
It ranks #15 of 29 markets FiberNear tracks for fiber availability, against a median of 64.2%.
Cable reaches 29.1% more of Denver than fiber does — the gap most people are surprised by.
Over fiber specifically, gigabit reaches 48.6%; across all technologies it reaches 93.7%.
FiberNear tracks 3 fiber networks operating in Denver, alongside 2 major non-fiber providers, and coverage varies street by street — a citywide figure will not tell you what reaches a specific address.

Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds.

Availability figures: FCC Broadband Data Collection, as of December 31, 2025. Page updated October 14, 2026.

Denver, Colorado is a Mountain West market where Quantum Fiber and Google Fiber compete against near-universal Xfinity cable, with CenturyLink copper still filling the gaps. Because fiber is built out street by street, the useful question isn't "who offers service in Denver?" — it's "who can actually install it at my address?" That is what FiberNear checks for you.

Who actually serves Denver

In Denver, the networks we track as present are AT&T Fiber, Google Fiber, Quantum Fiber, Xfinity, CenturyLink. Fiber is 64.2% of homes here; cable is 93.3%. Coverage still stops at the address — check below.

Fiber in Denver: where each network is building

For internet providers in Denver, the biggest change in 2026 is ownership. On February 2, 2026, AT&T completed its purchase of Lumen's consumer fiber business, including Quantum Fiber. AT&T named Denver among the metro areas it gained. Lumen kept its copper-based consumer service, so CenturyLink copper lines and Quantum Fiber lines now belong to different companies.

Google Fiber, now called gFiber, works differently inside the city than in the suburbs. In Denver itself it sells gFiber Webpass, a building-by-building service for apartments and condos that has been available here since 2017. Its street-by-street home network is in the suburbs. Lakewood came first, with sign-ups opening in the Eiber neighborhood on September 4, 2024. As of October 1, 2026, gFiber's city list shows service in Lakewood, Westminster and Douglas County. Adams County, Golden, Wheat Ridge and Broomfield County are marked as coming soon.

How to choose in Denver:

In an apartment or condo, ask your building manager whether gFiber Webpass is wired into the building.
In a house inside Denver, compare Quantum Fiber and AT&T Fiber at your address first.
If the only plan you see is CenturyLink copper, check the fiber options before you sign up.
In Lakewood, Westminster or Douglas County, add gFiber to the list. In Golden, Wheat Ridge, Adams County or Broomfield County, sign up for gFiber updates.

Sources: AT&T, Feb 2, 2026; Lumen, Feb 2, 2026; gFiber blog, Sep 4, 2024; gFiber Webpass Denver page; gFiber site city menu, read Oct 1, 2026

What's actually available in Denver

Each figure is the share of Denver's residential broadband-serviceable locations where at least one provider reports service at that speed or better. Read down a column to compare technologies at the same speed tier.

Broadband availability in Denver, CO by technology and speed tier
Technology	25/3 Mbps	100/20 Mbps	250/25 Mbps	1 Gbps
Fiber to the home	64.3%	64.2%	64.0%	48.6%
Cable	93.3%	93.3%	93.3%	84.2%
Fixed wireless	97.5%	90.1%	75.2%	5.0%
DSL / copper	31.4%	4.9%	0.0%	0.0%
Any technology	100.0%	100.0%	100.0%	93.7%

Source: FCC Broadband Data Collection, residential fixed broadband, as of December 31, 2025. Figures are advertised availability self-reported by providers, not measured speeds.

How Denver compares

Across the 29 metros FiberNear tracks, the median fiber availability is 64.2% at 100/20 Mbps. Denver sits at 64.2%, which ranks #15 of 29 — Denver is right at the median for this set.

Internet providers in Denver

These are the major networks active in and around Denver — fiber first, plus the cable and wireless operators that reach a large share of the market. Each card names the connection type, because that is the difference that actually matters. Coverage varies by neighborhood and address, so use the checker to confirm which of them reach your home.

Which providers operate in each market is FiberNear's own editorial assessment, not an FCC figure. The FCC's public filings report how much fiber reaches a city, but not which brand it belongs to.

AT&T Fiber

100% fiber-optic; plans commonly range from 300 Mbps up to 5 Gbps where available. Known for symmetrical speeds and no annual contract on most fiber plans.

Google Fiber

Fiber-to-the-home; plans commonly range from 1 Gbps up to 8 Gbps where available. Known for simple plans, no contracts, and some of the highest residential tiers available.

Quantum Fiber

Fiber-to-the-home; plans commonly range from 500 Mbps up to 8 Gbps where available. Known for flat, all-in monthly pricing with no contracts on fiber plans.

Xfinity

Hybrid fiber-coaxial cable, with fiber to a limited set of addresses; plans commonly range from 150 Mbps up to 2 Gbps where available. Known for the widest gigabit-capable cable footprint in the US.

CenturyLink

DSL over copper telephone line — Lumen sells its fiber under the Quantum Fiber brand instead; copper tiers commonly top out well below 100 Mbps and vary sharply with distance from the exchange. Known for being progressively replaced by Quantum Fiber wherever Lumen has built fiber.

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Fiber vs cable in Denver

Cable currently reaches more of Denver than fiber does — 93.3% of locations versus 64.2% at 100/20 Mbps. But coverage and quality are different questions. The gap shows up at the top of the range: 48.6% of Denver can get gigabit over fiber, compared with 84.2% over cable.

Where it is available, fiber generally outperforms cable and DSL on speed consistency, upload performance and latency — which matters most for video calls, cloud backups, and a household with several people online at once. Actual speeds, pricing and availability are set and confirmed by each provider. How fiber availability works →

Looking for business internet in Denver?

Everything above is the residential figure. The FCC reports business availability separately, and in Denver fiber reaches 65.4% of business locations against 64.2% of homes — so a street with fiber in it does not settle the question for a commercial premises. Business fiber in Denver →

Common questions about fiber internet in Denver

Is fiber internet available in Denver?

Yes. Fiber is available to 64.2% of residential broadband-serviceable locations in Denver at 100/20 Mbps or faster, according to FCC Broadband Data Collection filings as of December 31, 2025. Availability is built street by street, so the only way to know about a specific home is to check that exact address.

What percentage of Denver can get gigabit internet?

Gigabit service (1 Gbps down / 100 Mbps up or better) is reported as available to 93.7% of residential locations in Denver across all technologies, and to 48.6% specifically over fiber. Source: FCC Broadband Data Collection, as of December 31, 2025.

Is cable or fiber more widely available in Denver?

Cable reaches more of Denver than fiber does — 93.3% of residential locations versus 64.2% for fiber, at 100/20 Mbps or better. Fiber generally performs better where it is available, particularly on upload speed and latency, but cable still covers more ground in this market.

How do I find out which internet providers serve my exact address in Denver?

Enter your street address in the checker on this page. Coverage in Denver varies block to block, so a citywide provider list will not tell you what you can actually order. FiberNear compares the providers that reach your specific location and is free to use.

Is FiberNear an internet provider?

No. FiberNear is an independent comparison and referral service. We are not an internet service provider and we are not affiliated with, endorsed by, or sponsored by any carrier. Availability, speeds and pricing are set and confirmed by the providers themselves.

Other cities

Compare providers in Denver: AT&T Fiber · Google Fiber · Quantum Fiber · Xfinity · CenturyLink