Searching for top Dark Fiber providers in Austin? 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 by a telecommunications provider but are not currently in use. These unused cables are leased or sold, allowing the lessee to set up and maintain the necessary electronics to "light" the fiber themselves.
Dark Fiber providers are also location-based, relying heavily on the availability of specific network infrastructure in a given area. The proximity to major cities and their connective infrastructure plays a crucial role in the feasibility and availability of Dark Fiber services. This means that even if a location is near a major fiber line, connecting to it may not be straightforward due to the need for splice points and other technical considerations.
Overview of Providers in Austin Offering Dark Fiber
There are many Dark Fiber providers to choose from in Austin, with an estimated 58 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 Austin, 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 Austin with Dark Fiber
Local telcos, offering wireline telephone services throughout Austin, possess extensive fiber infrastructure, making them ideal Dark Fiber providers. They can cover larger areas, unlike regular providers limited to specific city regions.

The local telcos in Austin that offer Dark Fiber are:
- AT&T: A leading provider with extensive fiber infrastructure in Austin. Known for its robust network and wide coverage, AT&T offers scalable Dark Fiber solutions that cater to both small businesses and large enterprises. Their unique differentiator is the ability to bundle Dark Fiber with other telecom services, providing a comprehensive package for businesses.
- Frontier Communications: Frontier stands out with its focus on fiber internet services, offering multiple speed options and a strong presence in the Austin area. Their Dark Fiber services are ideal for businesses looking for high-speed, reliable connectivity. Frontier's commitment to affordability and customer support makes them a competitive choice in the market.
Local Cable Companies in Austin with Dark Fiber
Local cable companies originally built cable television infrastructure throughout Austin, 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 Austin that offer Dark Fiber are:
- Optimum: Known for its high-speed fiber internet services, Optimum offers up to 8 Gbps download/upload speeds. Their Dark Fiber solutions are supported by a robust fiber optic network, making them a reliable choice for businesses needing high-speed connectivity. Unique differentiators include promotional offers like up to $800 via Prepaid Mastercard for new sign-ups and comprehensive bundles that combine internet, mobile, and TV services for additional savings.
- Spectrum: Spectrum provides a range of internet plans, including their 1 Gig service, which is ideal for businesses requiring high-speed, reliable internet. While their main focus is on consumer services, their extensive fiber network supports Dark Fiber solutions. Key differentiators include no contractual obligations, Spectrum Mobile service included with internet plans for one year, and the option to add Advanced WiFi for enhanced connectivity.
Other Network Providers with Dark Fiber in Austin
Finally, a network provider delivers Dark Fiber by leasing unused fiber optic cables, but unlike local telcos and cable companies with citywide infrastructure, they may only cover specific areas based on network availability. These providers often use a mix of technologies to offer flexible, business-focused solutions.

There are many network providers in Austin 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 Dark Fiber solutions for businesses.
- Altice USA: Offers comprehensive telecom services, including Dark Fiber, across the United States.
- AMA Techtel: Focuses on delivering reliable fiber optic connectivity and telecom services.
- American Broadband: Provides a range of broadband and fiber optic services tailored for businesses.
- Arelion: Known for its global network infrastructure, offering robust Dark Fiber solutions.
- BrightSpeed: Delivers high-speed internet and fiber optic services to various regions.
- BullsEye Telecom: Offers customized telecom solutions, including Dark Fiber, for businesses.
- CenturyLink: Provides extensive fiber optic and telecom services with a strong network presence.
- Comcast: Known for its wide range of internet and fiber optic services for both residential and business customers.
- commZoom: Focuses on delivering high-speed internet and fiber optic solutions in select areas.
- Consolidated Communications: Offers a variety of telecom services, including Dark Fiber, with a focus on reliability.
- Cox Communications: Provides comprehensive internet and fiber optic services for businesses and homes.
- Crown Castle: Specializes in infrastructure solutions, including Dark Fiber, for enhanced connectivity.
- Delcom: Delivers reliable fiber optic and telecom services tailored to business needs.
- Dish Network: Known for its satellite TV services, also offers fiber optic solutions for businesses.
- Earthlink: Provides a range of internet and fiber optic services with a focus on customer satisfaction.
- EnTelegent Solutions: Offers customized telecom and fiber optic solutions for businesses.
- ExteNet Systems: Specializes in providing advanced network infrastructure, including Dark Fiber.
- FiberLight: Known for its high-capacity fiber optic network and reliable Dark Fiber services.
- Fusion Connect: Delivers comprehensive telecom solutions, including Dark Fiber, for businesses.
- GHz Wireless: Focuses on providing high-speed wireless and fiber optic connectivity.
- Google Fiber: Offers ultra-fast internet and fiber optic services with a focus on innovation.
- Granite Telecommunications: Provides a range of telecom services, including Dark Fiber, for businesses.
- Gtek Communications: Delivers high-speed internet and fiber optic solutions in select regions.
- GVTC: Offers reliable fiber optic and telecom services with a focus on customer service.
- Hughes: Known for its satellite internet services, also provides fiber optic solutions.
- JumpFiber: Specializes in delivering high-speed fiber optic internet for businesses.
- LightEdge Solutions: Offers comprehensive IT and fiber optic services for businesses.
- Megaport: Provides scalable network solutions, including Dark Fiber, for enhanced connectivity.
- One Ring Networks: Delivers reliable telecom and fiber optic services tailored to business needs.
- Peerless Network: Offers a range of telecom solutions, including Dark Fiber, for businesses.
- Planters Telephone Cooperative: Provides high-speed internet and fiber optic services in select areas.
- Ranch Wireless: Focuses on delivering reliable wireless and fiber optic connectivity.
- Reach Broadband: Offers high-speed internet and fiber optic services for businesses and homes.
- Rise Broadband: Known for its wireless internet services, also provides fiber optic solutions.
- SECOM: Delivers reliable fiber optic and telecom services with a focus on customer satisfaction.
- Skynet: Specializes in providing high-speed internet and fiber optic solutions.
- Sparklight: Offers a range of internet and fiber optic services for businesses and homes.
- Spectrotel: Provides customized telecom solutions, including Dark Fiber, for businesses.
- Sprint: Known for its mobile services, also offers fiber optic solutions for businesses.
- Summit Broadband: Delivers high-speed internet and fiber optic services in select regions.
- T-Mobile: Offers a range of telecom services, including fiber optic solutions, for businesses.
- Telekenex: Specializes in providing reliable telecom and fiber optic services for businesses.
- Telesat: Known for its satellite services, also offers fiber optic solutions for enhanced connectivity.
- Totelcom Communications: Delivers high-speed internet and fiber optic services in select areas.
- Towerstream: Focuses on providing high-speed wireless and fiber optic connectivity for businesses.
- TPx Communications: Offers a range of telecom solutions, including Dark Fiber, for businesses.
- Transtelco: Delivers reliable fiber optic and telecom services with a focus on business needs.
- Verizon: Known for its extensive telecom services, including fiber optic solutions for businesses.
- Vertek: Specializes in providing customized telecom and fiber optic solutions for businesses.
- VTX1: Offers high-speed internet and fiber optic services in select regions.
- Webpass: Delivers ultra-fast internet and fiber optic solutions for businesses and homes.
- Zayo: Known for its extensive fiber optic network, offering robust Dark Fiber solutions.
Overall Connectivity Score in Austin: High
The "High" in Austin signifies a robust market for Dark Fiber, with numerous providers, extensive fiber infrastructure, and fierce competition. This abundance translates to more choices and competitive pricing for businesses. However, the right provider still hinges on location-specific availability and unique business needs, making tools like Lightyear essential for simplifying 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 top Dark Fiber providers in Austin. Our platform leverages real infrastructure data to match your business with the most suitable options. With features like network intelligence and expert support, Lightyear ensures you get the best connectivity solutions tailored to your needs. Book a demo to explore Lightyear today.