Looking for the best Dark Fiber providers in The Bronx? 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 cabling laid by telecommunications providers but not currently in use. These cables were installed in the 1980s and 1990s with the foresight of future data transfer needs. Leasing dark fiber involves renting these unused lines, allowing enterprises to set up and maintain their own network infrastructure.
Dark Fiber providers are also location-based because they depend on the availability of a specific network infrastructure in a given area. The closer you are to a major city, the higher the likelihood of accessing dark fiber services. This is due to the existing fiber lines running between major cities, making it easier for providers to offer their services in these regions.
Overview of Providers in The Bronx Offering Dark Fiber
There are many Dark Fiber providers to choose from in The Bronx, with an estimated 31 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 The Bronx, 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 The Bronx with Dark Fiber
Local telcos are companies that offer wireline telephone services throughout The Bronx region and 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 telcos in The Bronx that offer Dark Fiber are:
- Verizon: Verizon Business offers comprehensive internet, phone, and wireless solutions tailored for businesses. They provide promotional deals, reliable connectivity, and innovative plans to help businesses stay connected and efficient.
- Windstream Business: Windstream offers high-speed internet, phone, and digital TV services under the Kinetic brand. They provide reliable fiber internet with various speed options, unlimited data, and no annual contracts, along with exclusive offers and bundles.
Local Cable Companies in The Bronx with Dark Fiber
Local cable companies originally built cable television infrastructure throughout The Bronx, 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 companies in The Bronx that offer Dark Fiber are:
- Optimum: Optimum offers high-speed fiber internet, TV, and mobile phone services with various plans and packages for residential and business customers. Special promotions include up to $800 via Prepaid Mastercard for new internet sign-ups.
- Spectrum: Spectrum provides internet, mobile, cable TV, and home phone services. Their internet plans include 100 Mbps for $30/month, 500 Mbps for $50/month, and 1 Gig for $70/month, all for the first year.
Other Network Providers with Dark Fiber in The Bronx
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 The Bronx 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.
- Altice USA: Offers broadband, video, and telephony services to residential and business customers across the U.S.
- AT&T: A leading provider of telecommunications, media, and technology services globally.
- Boldyn Networks: Delivers advanced wireless infrastructure solutions for various industries.
- CenturyLink: Provides internet, phone, and TV services, focusing on high-speed fiber connections.
- Cleareon Fiber Networks: Offers dark fiber and lit services with a focus on flexible, scalable solutions.
- CMC Networks: Specializes in providing global connectivity solutions for enterprises.
- Crown Castle: A leading provider of shared communications infrastructure, including towers and fiber.
- Empire Access: Offers high-speed fiber optic internet, phone, and security services.
- ExteNet Systems: Designs, builds, and operates distributed networks for wireless and fiber connectivity.
- Fiberspark: Provides ultra-fast fiber optic internet services to residential and business customers.
- FirstLight: Delivers fiber optic data, internet, data center, and voice services to enterprise and carrier customers.
- IDT Corporation: Offers telecommunications and payment services to individuals and businesses.
- Lightpath: Provides high-speed fiber optic network services for businesses in the New York metropolitan area.
- MetTel: Delivers integrated voice, data, and network solutions for businesses.
- Natural Wireless: Offers high-speed wireless internet services to residential and business customers.
- Nuvisions: Provides internet, TV, and phone services with a focus on high-speed fiber connections.
- Skywire Networks: Specializes in providing high-speed internet and network solutions for businesses.
- Spectrotel: Offers a range of telecommunications services, including voice, data, and internet solutions.
- Starry: Provides high-speed internet services with a focus on innovative wireless technology.
- T-Mobile: A leading provider of wireless voice, messaging, and data services in the U.S.
- Towerstream: Delivers high-speed internet services to businesses through fixed wireless technology.
- Uniti Fiber: Provides fiber infrastructure solutions for wireless carriers, enterprises, and government agencies.
- Vocal IP Networx: Offers a range of telecommunications services, including VoIP, data, and internet solutions.
- Xchange Telecom: Provides internet, phone, and data services with a focus on high-speed connectivity.
- Zayo: Delivers bandwidth and connectivity solutions over an extensive fiber network.
Overall Connectivity Score in The Bronx: High
A high connectivity score in The Bronx signifies robust provider availability, extensive fiber infrastructure, and healthy competition. This benefits businesses seeking Dark Fiber by offering more 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 simplifies the process of finding the best Dark Fiber providers in The Bronx by leveraging comprehensive network intelligence. 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.