Searching for top Dark Fiber providers in Salt Lake City, Utah? Here's your ultimate guide to making an informed choice.
What is Dark Fiber?
Dark Fiber, also known as 'unlit fiber' or 'black fiber', refers to fiber optic cables that have been laid by telecommunications providers but are not currently in use. These unused cables are leased to customers who then install their own equipment to 'light' the fiber, making it operational for data transmission.
Dark Fiber providers are highly dependent on the availability of specific network infrastructure in a given area. The presence of unused, unlit fiber optic cables and nearby splice points is crucial, making access more feasible in densely populated urban regions compared to rural areas.
Overview of Dark Fiber Providers in Salt Lake City, Utah, United States
There are many Dark Fiber providers to choose from in Salt Lake City, Utah, United States, with an estimated 30 available based on Lightyear’s network intelligence—the industry’s most comprehensive dataset.
Actual provider availability also depends on fiber infrastructure near a specific address—so while many exist citywide, not all are quote-ready for every location. Comparing options can quickly become overwhelming.
To help simplify your research, we've compiled a definitive list of providers offering Dark Fiber in Salt Lake City, which you can explore below.
You can also schedule a demo with the Lightyear team for expert support navigating telecom procurement. Provider availability differs significantly by location, and Lightyear’s network intelligence helps businesses identify the right-fit options based on real infrastructure data.

Local Telcos in Salt Lake City, with Dark Fiber
Local telcos are telecommunications companies that offer wireline telephone services throughout the Salt Lake City region in Utah, United States. With extensive fiber infrastructure, they are ideal providers for Dark Fiber, offering service across larger areas compared to regular providers, which may only cover specific regions of the city.

The local telco(s) in Salt Lake City that offer Dark Fiber include:
- CenturyLink: A telecommunications company offering high-speed internet, TV, phone, and smart home accessories. Known for its Simply Unlimited and Fiber Internet plans, CenturyLink provides reliable connectivity with no annual contracts.
- Lumen Technologies: A global technology company providing networking, security, edge cloud, and managed services. Lumen offers Dark Fiber solutions for scalable, secure connectivity, ideal for businesses needing high-bandwidth infrastructure.
Local Cable Companies in Salt Lake City with Dark Fiber
Local cable companies originally built cable television infrastructure throughout Salt Lake City, which they now use to deliver ISP and business connectivity services. While their residential services typically rely on coaxial cables, their enterprise offerings—like Dark Fiber—are usually delivered over fiber infrastructure.
Availability depends on the cable provider's network footprint, with some services like Dedicated Internet Access (DIA) offering broader coverage than others. Often, a city’s local cable companies, like their local telcos, will be able to provide Dark Fiber connectivity throughout the city.

The cable company(ies) in Salt Lake City that offer Dark Fiber include:
- Comcast: A major telecommunications company offering a range of services including internet, TV, and phone. Known for its extensive network infrastructure.
Other Network Providers with Dark Fiber in Salt Lake City
Finally, a network provider is a company that delivers Dark Fiber by leveraging a mix of technologies to offer flexible, business-focused solutions. Unlike local telcos and cable companies with citywide infrastructure, these providers may only cover specific areas depending on network availability.

There are many network providers in Salt Lake City that offer Dark Fiber to choose from. Here's a quick look at all of them based on our network intelligence:
- 2pifi: Specializes in providing high-speed internet and network solutions for businesses.
- Arcadian Infracom: Focuses on building and operating fiber optic infrastructure in underserved areas.
- Arelion: Offers global connectivity solutions with a robust fiber network.
- AT&T: A leading telecommunications company providing internet, TV, and phone services.
- Beehive Broadband: Delivers high-speed internet and fiber solutions across Utah.
- Blackfoot: Provides advanced telecommunications and broadband services.
- Centracom: Offers a range of internet and communication services, including fiber optics.
- Connext: Specializes in fiber optic internet and network solutions for businesses.
- ExteNet Systems: Designs and operates distributed networks for enhanced connectivity.
- Google Fiber: Provides high-speed internet and TV services with a focus on fiber optics.
- Granite Telecommunications: Offers scalable communication solutions for businesses.
- InfoWest: Delivers high-speed internet and network services in Utah.
- Megaport: Provides network connectivity solutions with a focus on cloud services.
- NetDiverse: Specializes in providing diverse network solutions for businesses.
- Quantum Fiber: Offers high-speed fiber internet services for residential and business customers.
- Rise Broadband: Provides wireless internet and fiber solutions for rural and urban areas.
- Sparklight: Delivers high-speed internet, TV, and phone services.
- Sprint: Offers a range of wireless and fiber optic communication services.
- STRATA Networks: Provides comprehensive telecommunications services, including fiber optics.
- Syringa Networks: Specializes in fiber optic network solutions for businesses.
- T-Mobile: A major wireless carrier offering a range of communication services.
- Telia Company: Provides global connectivity and network solutions.
- Utah Broadband: Delivers high-speed internet and network services across Utah.
- Verizon: Offers a wide range of communication services, including fiber optics.
- Windstream: Provides advanced network and communication solutions for businesses.
- Zayo: Specializes in fiber optic bandwidth infrastructure and network solutions.
Overall Connectivity Score in Salt Lake City, Utah, United States: Medium
The "Medium" connectivity score in Salt Lake City reflects a balanced mix of provider availability, fiber infrastructure, and competition. For businesses seeking Dark Fiber, this means a fair number of choices and competitive pricing. However, the right provider still hinges on location-specific availability and business needs, making tools like Lightyear essential for streamlining the selection process.
Use Lightyear to Find the Perfect Provider
Interested in accessing the full list of providers at the best prices? Lightyear's advanced network intelligence and comprehensive dataset make it easy to find the best Dark Fiber providers in Salt Lake City. Our platform offers real-time data, expert support, and tailored recommendations to ensure you get the most reliable and cost-effective solutions for your business needs.