Looking for the best Dark Fiber providers in Riverside, California? 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 remain unused. These cables are leased or sold as core network services, allowing businesses to establish private, high-speed networks by installing their own transmission equipment.
Dark Fiber providers are highly location-dependent, as the availability of these unused fiber lines hinges on the existing network infrastructure in a given area. Proximity to major cities increases the likelihood of access, while rural areas may face challenges due to the high costs of installing new fiber.
Overview of Dark Fiber Providers in Riverside, California, United States
There are many Dark Fiber providers to choose from in Riverside, California, United States, with an estimated 24 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 Riverside, 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 Riverside, with Dark Fiber
Local telcos are telecommunications companies that offer wireline telephone services throughout the Riverside region in California, 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 Riverside that offer Dark Fiber include:
- AT&T: AT&T is a leading telecommunications company offering wireless, internet, and bundled services for personal and business customers. The official site features the latest deals on phones, plans, and accessories, as well as support and account management tools.
Local Cable Companies in Riverside with Dark Fiber
Local cable companies originally built cable television infrastructure throughout Riverside, 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 Riverside that offer Dark Fiber include:
- Spectrum: Spectrum offers high-speed internet, mobile, cable TV, and home phone services. Plans include Internet Advantage (100 Mbps for $30/mo), Internet Premier (500 Mbps for $50/mo), and Internet Gig (1 Gbps for $70/mo).
Other Network Providers with Dark Fiber in Riverside
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 Riverside 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 tailored for businesses.
- Bluebird Network: Offers reliable fiber optic solutions and data center services across the Midwest.
- California Telecom: Delivers customized voice and data solutions for businesses of all sizes.
- CenturyLink: A global communications provider offering internet, voice, and managed services.
- Comcast: Provides a wide range of telecommunications services, including high-speed internet and cable TV.
- Crown Castle: Specializes in shared communications infrastructure, including fiber solutions.
- DMR Communications: Focuses on delivering high-speed internet and voice services to businesses.
- Fusion Connect: Offers cloud communications, connectivity, and managed network services.
- Hughes: Known for satellite internet services, also provides managed network solutions.
- Lumen Technologies: Delivers adaptive networking, edge cloud, and security solutions.
- MetTel: Provides integrated voice, data, and network solutions for businesses.
- One Ring Networks: Offers high-speed internet and managed services tailored for enterprises.
- SiFi Networks: Specializes in building and operating open-access fiber networks.
- T-Mobile: A leading wireless carrier offering mobile and internet services.
- Tierzero: Provides high-speed internet and VoIP services for businesses.
- TPx Communications: Delivers managed IT, unified communications, and connectivity solutions.
- Ultimate Internet Access: Offers high-speed internet and network solutions for businesses and residential customers.
- Verizon: A global leader in communications, providing internet, voice, and managed services.
- WiLine Networks: Specializes in high-speed internet and voice services for businesses.
- Windstream: Provides advanced network communications and technology solutions.
- Zayo: Offers extensive fiber network and bandwidth connectivity solutions.
Overall Connectivity Score in Riverside, California, United States: Medium
The "Medium" connectivity score in Riverside 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 specific location needs, making tools like Lightyear essential for efficient procurement.
Use Lightyear to Find the Perfect Provider
Interested in accessing the full list of providers at the best prices? Lightyear's platform simplifies telecom procurement by leveraging real infrastructure data to match your business with the ideal Dark Fiber providers in Riverside. Our comprehensive network intelligence ensures you get the most competitive rates and reliable service tailored to your specific needs.
Book a demo to explore Lightyear today.