Looking for the best Dark Fiber providers in Glendale, 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 installed but are not currently in use. These cables are leased or sold without any transmission equipment, leaving the lessee responsible for 'lighting' the fiber to create a high-speed, private network.
Dark Fiber providers are highly location-dependent, as their services rely on the availability of unused fiber-optic cables in specific areas. The presence of accessible splice points in the network infrastructure is crucial, making it more feasible in or between major population centers.
Overview of Dark Fiber Providers in Glendale, California, United States
There are many Dark Fiber providers to choose from in Glendale, California, United States, with an estimated 41 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 Glendale, 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 Glendale, with Dark Fiber
Local telcos are companies that provide wireline telephone services throughout the Glendale region in California, United States. They possess extensive fiber infrastructure, making them ideal providers for Dark Fiber. Unlike regular providers, local telcos can offer service across larger areas, ensuring broader coverage.

The local telco(s) in Glendale that offer Dark Fiber include:
- AT&T: A major U.S. telecommunications provider offering wireless, internet, and device sales. Known for extensive consumer-focused services and promotional offers.
- CenturyLink: Provides high-speed internet, TV, and phone services. Offers fiber internet with speeds up to 940 Mbps and no annual contracts.
- Lumen Technologies: Specializes in business and enterprise solutions, including Dark Fiber, networking, and security services. Known for high-capacity fiber networks and low-latency edge coverage.
- Verizon: Offers a wide range of business services, including mobile plans, business internet, and IoT solutions. Emphasizes network reliability and customer support.
Local Cable Companies in Glendale with Dark Fiber
Local cable companies originally built cable television infrastructure throughout Glendale, 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 Glendale that offer Dark Fiber include:
- Comcast: A leading telecommunications provider offering a range of services including internet, TV, and phone. No specific details on Dark Fiber or pricing available.
- Cox Communications: Provides residential and business internet, TV, and phone services. No specific details on Dark Fiber or pricing available.
- Optimum: Offers fiber high-speed internet, TV, and mobile services. Pricing includes $25/mo for mobile and bundled deals starting at $70/mo.
- Spectrum: Delivers high-speed internet, mobile, cable TV, and home phone services. Internet plans start at $30/mo for 100 Mbps.
Other Network Providers with Dark Fiber in Glendale
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 Glendale 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 areas.
- AirFiber: Offers wireless internet services with a focus on high-speed connectivity and reliability.
- Arcadian Infracom: Delivers fiber-optic infrastructure solutions to underserved and rural areas.
- Atlantic Metro: Provides managed IT services, including cloud hosting and network solutions.
- BrightSpeed: Focuses on delivering high-speed internet and communication services to residential and business customers.
- California Telecom: Offers a range of telecom services, including VoIP, internet, and network solutions.
- Cox Communications: Provides internet, TV, and phone services for both residential and business customers.
- Crown Castle: Specializes in infrastructure solutions, including fiber networks and small cell technology.
- CyberNet Communications: Offers business internet, VoIP, and managed IT services.
- Earthlink: Provides internet services, including high-speed broadband and managed network solutions.
- Edge Broadband: Delivers high-speed internet services to rural and underserved areas.
- ExteNet Systems: Specializes in providing advanced network infrastructure solutions for businesses.
- Fusion Connect: Offers cloud communications, connectivity, and managed network services.
- Granite Telecommunications: Provides voice, data, and networking services to businesses across the U.S.
- Hughes: Known for satellite internet services, offering connectivity solutions for remote areas.
- ITC2: Delivers comprehensive IT and telecom solutions, including cloud services and network management.
- Lightpath: Provides high-speed fiber-optic internet and networking solutions for businesses.
- MetTel: Offers a range of telecom services, including managed network solutions and cloud communications.
- One Ring Networks: Specializes in providing high-speed internet and VoIP services to businesses.
- Resound Networks: Focuses on delivering high-speed internet services to rural and underserved areas.
- Rise Broadband: Provides fixed wireless internet services to residential and business customers.
- Starry: Offers high-speed internet services with a focus on urban areas and apartment buildings.
- T-Mobile: Known for its mobile services, also offers home internet and business solutions.
- Telia Company: Provides international telecom services, including internet and network solutions.
- Tierzero: Offers business internet, VoIP, and managed IT services.
- Towerstream: Specializes in fixed wireless internet services for businesses.
- TPx Communications: Provides managed IT, unified communications, and network services.
- Triad Wireless: Delivers high-speed wireless internet services to residential and business customers.
- Ultimate Internet Access: Offers high-speed internet and network solutions for businesses.
- Vast Networks: Provides fiber-optic internet and network solutions for businesses and communities.
- Webpass: Offers high-speed internet services with a focus on urban residential and business customers.
- Windstream: Provides internet, phone, and network services for residential and business customers.
- Zayo: Specializes in fiber-optic bandwidth, colocation, and cloud infrastructure services.
Overall Connectivity Score in Glendale, California, United States: High
A high connectivity score in Glendale 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 advanced network intelligence and comprehensive dataset make it easy to find the best Dark Fiber providers in Glendale. Our platform offers real-time data, expert support, and tailored recommendations to ensure you get the most suitable options for your business needs.