Sebastian Internet Availability
Sebastian internet availability by address. Enter a zip code, city, or address below to see all providers.
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Sebastian a regional internet service provider, operating in 1 state or territory covering 35,831 people, and offering speeds over 1,000 Mbps to 61.09% of those people. Sebastian offers DSL and fiber connections, explore our comprehensive and frequently updated availability maps below.Sebastian Availability Maps
Sebastian has 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 77.34%
- DSL for 84.38%
This map illustrates Sebastian’s 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.
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 Internet Plans & Pricing
| Plan | Monthly Price | Typical Download Speed | Typical Upload Speed | Connection Type |
|---|---|---|---|---|
| Starting At | $79.95 | 669 Mbps | 627 Mbps | DSL |
Note: These provider-reported typical speeds reflect plan-specific expectations, while speed metrics elsewhere on our site measure maximum available performance across areas.
Sebastian 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 Internet Customer Reviews
Sebastian has 0 reviews and ratings across the United States. If you'd like to tell others about your experience, you can rate or review Sebastian here.
Sebastian’s Biggest Competitors
Sebastian frequently competes for 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 | |
 |  |
| National Availability | |
| less than 1% | 1.61% |
| High Speed Availability | |
| 77.34% Fiber | 100.00% Fixed Wireless |
| Average Speed | |
| 663 Mbps | 183 Mbps |
| Customer Rating | |
 (0) |  (1) |
| Sebastian vs Cal.net | |
|---|---|
| 81.72% Availability Overlap | |
|  |
| National Availability | |
| less than 1% | 1.13% |
| High Speed Availability | |
| 77.34% Fiber | 100.00% Fixed Wireless |
| Average Speed | |
| 663 Mbps | 100 Mbps |
| Customer Rating | |
| (0) |  (3) |
| Sebastian vs T-Mobile Home Internet | |
|---|---|
| 80.84% Availability Overlap | |
|  |
| National Availability | |
| less than 1% | 85.72% |
| High Speed Availability | |
| 77.34% Fiber | 100.00% Fixed Wireless |
| Average Speed | |
| 663 Mbps | 70 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 Internet Service
Sebastian is available in 20 cities throughout the country. Here is a list of the largest cities with Sebastian 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 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 people can get from Sebastian is 663 Mbps download and 632 Mbps upload.
- Have Sebastian and want to see what speed you get? User our Sebastian Speed Test tool to find out.
-
Is Sebastian 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. You can use our internet providers by address or internet providers by zip code tools to see if Sebastian is available in your area.
-
Does Sebastian have fiber internet?
- 77.34% of Sebastian customers can subscribe to fiber internet. These customers receive an average download speed of 832 Mbps and average upload speed of 811 Mbps.
-
Does Sebastian have cable internet?
- Sebastian does not offer any Cable internet service.
-
Does Sebastian have DSL internet?
- 84.38% of Sebastian customers can subscribe to DSL internet. These customers receive an average download speed of 94 Mbps and average upload speed of 23 Mbps.
-
Does Sebastian have Fixed Wireless internet?
- Sebastian does not offer any Fixed internet service.