A Full List of Dark Fiber Providers in Phoenix

Looking for the best Dark Fiber providers in Phoenix, Arizona? 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 or sold to organizations that need high-capacity, private network connections, allowing them to install and maintain their own transmission equipment.

Dark Fiber providers are highly dependent on the availability of existing network infrastructure in a given area. The closer a business is to a major city, the more likely it is to access dark fiber services. This is because the original installation of fiber is costly, and providers typically only install excess fiber where there is a strong business case, such as in or between major population centers.

Overview of Dark Fiber Providers in Phoenix, Arizona, United States

There are many Dark Fiber providers to choose from in Phoenix, Arizona, United States, with an estimated 45 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 Phoenix, 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 Phoenix, with Dark Fiber

Local telcos are telecommunications companies that offer wireline telephone services throughout the Phoenix region in Arizona, United States. They possess extensive fiber infrastructure, making them ideal providers for Dark Fiber. These companies can offer service across larger areas, while regular providers may only have coverage in specific regions of the city.

The local telco(s) in Phoenix that offer Dark Fiber include:

• CenturyLink: A leading telecommunications company offering high-speed internet, TV, and phone services. Known for its reliable fiber internet with speeds up to 940 Mbps and no annual contracts.
• Lumen Technologies: Provides advanced business and enterprise technology solutions, including Dark Fiber, networking, and security services. Offers scalable, high-performance networking for digital transformation.

Local Cable Companies in Phoenix with Dark Fiber

Local cable companies originally built cable television infrastructure throughout Phoenix, 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 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 Phoenix that offer Dark Fiber include:

• Cox Communications: A major cable provider offering residential and business services, including high-speed internet, TV, and phone. Known for its extensive network infrastructure in Phoenix.

Other Network Providers with Dark Fiber in Phoenix

Finally, network providers are companies that deliver 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 Phoenix 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 solutions for businesses and residential customers.
• AirFiber: Offers wireless internet services with a focus on high-speed connectivity and reliability.
• Alluvion Communications: Delivers advanced fiber-optic network solutions for businesses and enterprises.
• Arcadian Infracom: Provides infrastructure solutions, including fiber-optic networks, to underserved areas.
• Arelion: A global provider of high-performance network services and connectivity solutions.
• AT&T: Offers a wide range of telecommunications services, including high-speed internet and fiber-optic solutions.
• Comcast: A major provider of cable television, internet, and phone services with extensive fiber infrastructure.
• Cox Communications: Known for its comprehensive network infrastructure, offering high-speed internet and business services.
• Crown Castle: Specializes in providing shared communications infrastructure, including fiber solutions.
• Desert iNET: Focuses on delivering high-speed internet services to rural and underserved areas.
• Earthlink: Provides internet and online services, including high-speed fiber-optic connections.
• ExteNet Systems: Offers advanced network infrastructure solutions, including fiber and wireless services.
• Fusion Connect: Delivers a range of cloud communications and connectivity solutions for businesses.
• Hopi Telecommunications: Provides telecommunications services, including fiber-optic connectivity, to the Hopi community.
• IDT Corporation: Offers a variety of telecommunications and payment services, including fiber-optic solutions.
• Mammoth Networks: Specializes in providing wholesale internet and data transport services.
• Megaport: Delivers scalable, on-demand connectivity solutions for businesses and enterprises.
• MOD Mission Critical: Provides managed services and network solutions, including dark fiber.
• Nextlink Internet: Offers high-speed internet and data services, focusing on rural and underserved areas.
• One Ring Networks: Provides a range of telecommunications services, including fiber-optic internet.
• Optimum: Offers high-speed internet, TV, and phone services with extensive fiber infrastructure.
• Planters Telephone Cooperative: Provides telecommunications services, including fiber-optic internet, to rural communities.
• Quantum Fiber: Delivers high-speed fiber-optic internet services for residential and business customers.
• Resound Networks: Focuses on providing high-speed internet services to rural and underserved areas.
• Sparklight: Offers high-speed internet, TV, and phone services with a focus on fiber-optic connectivity.
• Spectrotel: Provides a range of telecommunications services, including fiber-optic solutions for businesses.
• Spectrum: A major provider of cable television, internet, and phone services with extensive fiber infrastructure.
• Syringa Networks: Delivers high-performance network solutions, including fiber-optic connectivity, for businesses.
• T-Mobile: Offers a range of wireless and internet services, including fiber-optic solutions for businesses.
• Telia Company: Provides global telecommunications services, including high-speed fiber-optic connectivity.
• Telxius: Specializes in providing telecommunications infrastructure, including fiber-optic networks.
• TPT Global Tech: Offers a variety of telecommunications and technology solutions, including fiber-optic services.
• TPx Communications: Provides managed services and network solutions, including dark fiber.
• Transtelco: Delivers telecommunications services, including fiber-optic connectivity, across the U.S. and Mexico.
• Triad Wireless: Focuses on providing high-speed internet services to rural and underserved areas.
• Utility Telecom: Offers a range of telecommunications services, including fiber-optic solutions for businesses.
• Verizon: A leading provider of telecommunications services, including high-speed fiber-optic internet.
• Viasat: Specializes in providing satellite and high-speed internet services, including fiber-optic solutions.
• WANRack: Delivers custom fiber-optic networks for schools, businesses, and municipalities.
• Wirefree Communications: Provides high-speed internet services with a focus on wireless and fiber-optic connectivity.
• Yomura: Offers a range of telecommunications services, including fiber-optic solutions for businesses.
• Zayo: Specializes in providing fiber-optic bandwidth, connectivity, and colocation services.

Overall Connectivity Score in Phoenix, Arizona, United States: High

A high connectivity score in Phoenix signifies robust provider availability, extensive fiber infrastructure, and healthy competition. This abundance translates to more choices and competitive pricing for businesses seeking Dark Fiber. 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 platform leverages advanced network intelligence to help you find the perfect Dark Fiber provider in Phoenix. With real-time data, comprehensive provider comparisons, and expert support, Lightyear simplifies telecom procurement, ensuring you get the best fit for your business needs.

Book a demo to explore Lightyear today.