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Sebastian Business Internet Availability

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

Jump to: Availability Maps| Residential Internet

Sebastian is a regional business internet service provider, operating in 1 state or territory covering 35,787 people, and offering speeds of 1,000 Mbps or more to 45.20% of those people. Sebastian offers DSL and fiber connections, explore our comprehensive and frequently updated availability maps below.

Sebastian Business Internet Availability Maps

Sebastian 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 77.14%
  • Cable for 0.00%
  • DSL for 84.48%
  • Fixed wireless for 0.00%

This map illustrates Sebastian’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 DSL and fiber.

Sebastian Business Internet Availability Map

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.

This page reflects the most recent FCC update from January 06, 2026, based on the Broadband Data Collection as of June 30, 2025.

Sebastian Business Internet by State

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

Sebastian’s Biggest Competitors

Sebastian frequently competes for business customers with providers like unWired Broadband, Cal.net, 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.

Sebastian vs unWired Broadband
82.39% Availability Overlap
Sebastian logounWired Broadband logo
National Availability
less than 1%1.60%
High Speed Availability
77.34% Fiber100.00% Fixed Wireless
Average Speed
663 Mbps183 Mbps
Customer Rating
(0) (1)
Sebastian vs Cal.net
81.72% Availability Overlap
Sebastian logoCal.net logo
National Availability
less than 1%1.13%
High Speed Availability
77.34% Fiber100.00% Fixed Wireless
Average Speed
663 Mbps100 Mbps
Customer Rating
(0) (3)
Sebastian vs T-Mobile Home Internet
80.84% Availability Overlap
Sebastian logoT-Mobile Home Internet logo
National Availability
less than 1%85.87%
High Speed Availability
77.34% Fiber100.00% Fixed Wireless
Average Speed
663 Mbps70 Mbps
Customer Rating
(0) (284)

Sebastian competes with 12 other ISPs across the U.S., defined as any provider that competes in at least some part of Sebastian's service area. On average, customers within Sebastian's service area have about 4.0 alternative ISP options to choose from.

Biggest Cities with Sebastian Business Internet Service

Sebastian is available in 20 cities throughout the country. Here is a list of the largest cities with Sebastian business internet service:

Fresno, CA
  • Availability: 2.53%
  • Avg. Download Speed: 612 Mbps
Kerman, CA
  • Availability: 99.63%
  • Avg. Download Speed: 794 Mbps
Sacramento, CA
  • Availability: 0.26%
  • Avg. Download Speed: 905 Mbps
Foresthill, CA
  • Availability: 99.16%
  • Avg. Download Speed: 913 Mbps
San Joaquin, CA
  • Availability: 81.69%
  • Avg. Download Speed: 196 Mbps
Biola, CA
  • Availability: 100.00%
  • Avg. Download Speed: 139 Mbps
Greenwood, CA
  • Availability: 39.73%
  • Avg. Download Speed: 1,000 Mbps
Tranquillity, CA
  • Availability: 69.00%
  • Avg. Download Speed: 197 Mbps
Rolinda, CA
  • Availability: 84.60%
  • Avg. Download Speed: 181 Mbps
Michigan Bluff, CA
  • Availability: 90.29%
  • Avg. Download Speed: 447 Mbps
Applegate, CA
  • Availability: 8.07%
  • Avg. Download Speed: 1,000 Mbps
Heather Glen, CA
  • Availability: 13.09%
  • Avg. Download Speed: 964 Mbps
Helm, CA
  • Availability: 26.35%
  • Avg. Download Speed: 49 Mbps
Raisin, CA
  • Availability: 9.32%
  • Avg. Download Speed: 25 Mbps
La Vina, CA
  • Availability: 5.30%
  • Avg. Download Speed: 1,000 Mbps

Sebastian Frequently Asked Questions

  • How fast is Sebastian Business Internet?

    • The fastest available speed from Sebastian is 1,000 Mbps download 1,000 Mbps upload. Speed tiers start at 10 Mbps download and 1.0 Mbps upload for cheaper service packages.
    • The average speed most businesses can get from Sebastian is 535 Mbps download and 489 Mbps upload.
    • Our visitors rate Sebastian N/A out of 5 for speed.
  • Is Sebastian for business available in my area?

    • Sebastian is available to less than 1% of people in the United States. It is available in 1 state or territory, 20 cities, and 10 zip codes.
  • Does Sebastian have fiber business internet?

    • 77.14% of Sebastian customers can subscribe to fiber internet. These customers receive an average download speed of 669 Mbps and average upload speed of 627 Mbps.
  • Does Sebastian have cable business internet?

    • Sebastian does not offer any Cable internet service.
  • Does Sebastian have DSL business internet?

    • 84.48% of Sebastian customers can subscribe to DSL internet. These customers receive an average download speed of 82 Mbps and average upload speed of 19 Mbps.
  • Does Sebastian have Fixed Wireless business internet?

    • Sebastian does not offer any Fixed internet service.
  • Does Sebastian offer residential internet service?