Underline Business Internet Availability

Underline business internet availability by address. Enter a zip code, city, or address below to see all providers.

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Underline Business Internet Availability Maps

Underline has business internet service available to less than 1% of people in the US. Among those covered, the breakdown by service type is as follows:

• Fiber internet for 100.00%
• Cable for 0.00%
• DSL for 0.00%
• Fixed wireless for 0.00%

This map illustrates Underline’s business internet availability across the United States. Use the buttons at the top of the map to toggle between the different types of connections including fiber.

For more detailed comparisons and interactive maps, visit our Internet Service Providers Near You page. Alternatively, you can search by address on our Internet Service Providers by Address page, or use the search feature at the top of this page.

Underline Business Internet by State

This map highlights Underline coverage and speeds by state, Underline has the biggest presence in Colorado. Hover over each state to see Underline availability by connection type, and click on a state to see all providers in that state.

Underline’s Biggest Competitors

Underline frequently competes for business customers with providers like XFINITY, Centurylink, and T-Mobile Home Internet. Below, we offer a side-by-side comparison of these ISPs based on key metrics such as service availability, average speeds, and customer ratings.

Underline vs XFINITY
99.93% Availability Overlap
National Availability
less than 1%	35.61%
High Speed Availability
100.00% Fiber	99.99% Cable
Average Speed
1,000 Mbps	1,967 Mbps
Customer Rating
(0)	(2165)

Underline vs Centurylink
93.28% Availability Overlap
National Availability
less than 1%	11.65%
High Speed Availability
100.00% Fiber	50.64% Fiber
Average Speed
1,000 Mbps	498 Mbps
Customer Rating
(0)	(163)

Underline vs T-Mobile Home Internet
82.16% Availability Overlap
National Availability
less than 1%	85.87%
High Speed Availability
100.00% Fiber	100.00% Fixed Wireless
Average Speed
1,000 Mbps	59 Mbps
Customer Rating
(0)	(284)

Underline competes with 14 other ISPs across the U.S., defined as any provider that competes in at least some part of Underline's service area. On average, customers within Underline's service area have about 7.1 alternative ISP options to choose from.

Biggest Cities with Underline Business Internet Service

Underline is available in 4 cities throughout the country. Here is a list of the largest cities with Underline business internet service:

Underline Frequently Asked Questions

• How fast is Underline Business Internet?

  • The fastest available speed from Underline is 1,000 Mbps download 1,000 Mbps upload. Speed tiers start at 1,000 Mbps download and 1,000 Mbps upload for cheaper service packages.
  • The average speed most businesses can get from Underline is 1,000 Mbps download and 1,000 Mbps upload.
  • Our visitors rate Underline N/A out of 5 for speed.

• Is Underline for business available in my area?

  • Underline is available to less than 1% of people in the United States. It is available in 1 state or territory, 4 cities, and 12 zip codes.

• Does Underline have fiber business internet?

  • 100.00% of Underline customers can subscribe to fiber internet. These customers receive an average download speed of 1,000 Mbps and average upload speed of 1,000 Mbps.

• Does Underline have cable business internet?

  • Underline does not offer any Cable internet service.

• Does Underline have DSL business internet?

  • Underline does not offer any DSL internet service.

• Does Underline have Fixed Wireless business internet?

  • Underline does not offer any Fixed internet service.

• Does Underline offer residential internet service?

  • Yes, Underline offers residential internet service. Please visit our Underline Residential Internet page for more information.