In Castine there is 1 residential Fiber provider covering 64.56% of the city. The average home can get speeds up to 1,000 Mbps. Note that we may have a financial relationship with some of the providers below. This does not influence rankings, and helps us provide high-quality detailed information for free.
This page contains all Fiber internet providers in Castine, OH.
To see availability maps for all providers including fiber, cable, DSL, and more in Castine, OH please click below.
Fiber Internet Service Provider in Castine
Data updated 11/14/2025, based on FCC data from 12/31/2024. This is the most current data available as of .
To avoid wasting your time, providers with less than 1% coverage in Castine are not shown.
Castine Satellite TV & Internet Providers
DISH Satellite TV
DIRECTV Satellite TV
Not sure whether to choose Dish or DIRECTV? For most people most of the time we recommend DISH. But click here to learn more.
Viasat Satellite Internet
Where in Castine is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 64.56% of Castine. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is Spectrum. Call one of the companies with service in Castine above to see who has service at your home.
How fast is fiber internet in Castine?
The map below shows maximum fiber internet speeds by area in Castine.
Fiber Internet Speed Key
The average Castine home can get up to 1,000 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 1,000 Mbps, which 64.56% of residents can get.
Is fiber the fastest internet I can get in Castine?
The fastest internet for you may vary based on where in Castine you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 64.56% of Castine homes.
- Cable is fastest for 35.44% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for less than 1%.
- Satellite internet may be the only option for less than 1% of Castine homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Castine, along with details on where in Castine and at what speeds.
Spectrum Fiber in Castine, OH
Spectrum fiber coverage
About 64.56%, or 266 people, have Spectrum fiber internet available to them in the city. The company covers the northwest, southeast, northeast, southwest, and north Castine area. Spectrum is one of the largest internet service providers internet service providers in the US, with internet service available in a majority of Castine.
Spectrum fiber download speeds
Spectrum is one of the fastest when comparing download speeds to all other internet providers in Castine. Versus other fiber providers in the area, Spectrum fiber is the fastest. There are no different maximum speeds throughout Castine. The fastest plan anyone in Castine can order from Spectrum goes up to 1,000 Mbps, and all Castine customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Spectrum fiber upload speeds
In Castine download speeds tend to be faster than than upload speeds for Spectrum fiber. Compared to other ISPs, Spectrum is the fastest where upload speeds are concerned, and the fastest compared to other Castine fiber providers. Spectrum offers 2 different upload speeds across the city, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Castine is up to 500 Mbps. Some customers have slower plan choices, which only go up to 35 Mbps. On average, Spectrum customers can get speeds up to 486 Mbps.
Show all upload speeds
- 97.0% up to 500.0 Mbps
- 3.0% up to 35.0 Mbps
Castine Fiber by Area
This information is most helpful to those looking for homes or considering moving to Castine or any of the areas nearby.
How does fiber internet in Castine compare to the rest of Ohio?
Fiber internet speeds in Castine are much faster versus the average speeds in Ohio: 0.00 Mbps in Ohio versus 1,000 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in Ohio is 0.00% versus 64.56% in Castine.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Castine are shown below. You can enter any zip code here to see TV and internet providers by zip code.
What does fiber internet look like in other cities?
Below are cities nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Cities
- West Manchester, OH: less fiber coverage, faster speeds
- Savona, OH: more fiber coverage, similar speeds
- Eldorado, OH: more fiber coverage, faster speeds
- Ithaca, OH: less fiber coverage, similar speeds
- New Madison, OH: less fiber coverage, similar speeds
- West Sonora, OH: less fiber coverage, similar speeds
- Wayne Lakes, OH: less fiber coverage, similar speeds
- Arcanum, OH: less fiber coverage, faster speeds
- Delisle, OH: less fiber coverage, similar speeds
- Fort Jefferson, OH: more fiber coverage, faster speeds
Cities with Similar Populations
- Rock Creek, TN: more fiber coverage, faster speeds
- Roslyn, SD: more fiber coverage, similar speeds
- Rose Hill, TN: more fiber coverage, faster speeds
- Rosburg, WA: more fiber coverage, similar speeds
- Rosati, MO: less fiber coverage, similar speeds
- Roper, GA: more fiber coverage, faster speeds
- Romancoke on the Bay, MD: more fiber coverage, faster speeds
- Rogers, KY: more fiber coverage, faster speeds
- Roebuck, VA: more fiber coverage, similar speeds
- Rockville, MO: less fiber coverage, faster speeds