In Newcastle there are 3 residential Fiber providers covering 26.39% of the city. The average home can get speeds up to 3,488 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 Newcastle, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Newcastle, CA please click below.
Newcastle, CA Availability Maps
Fiber Internet Service Providers in Newcastle
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 Newcastle are not shown.
Newcastle 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 Newcastle is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 26.39% of Newcastle. Areas in green have fiber internet service, where areas in yellow or red may not. The most widely available provider is AT&T. Call one of the companies with service in Newcastle above to see who has service at your home.
How fast is fiber internet in Newcastle?
The map below shows maximum fiber internet speeds by area in Newcastle.
Fiber Internet Speed Key
The average Newcastle home can get up to 3,488 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 5,000 Mbps, which 14.99% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 11.40% of homes can only purchase plans up to 1,500 Mbps. See the internet provider details below for info about their speed and coverage in Newcastle.
Fiber internet speeds tend to be faster in the north parts of Newcastle, and slower in the southwest areas of the city.
Is fiber the fastest internet I can get in Newcastle?
The fastest internet for you may vary based on where in Newcastle you live. In general, fixed wireless competes most often with fiber in the city.
- Fiber is the fastest internet type for 26.39% of Newcastle homes.
- Cable is fastest for 17.05% of the city.
- DSL is fastest for less than 1%.
- Fixed wireless is fastest for 56.12%.
- Satellite internet may be the only option for less than 1% of Newcastle homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Newcastle, along with details on where in Newcastle and at what speeds.
Astound Broadband Fiber in Newcastle, CA
Astound Broadband fiber coverage
About 22.88%, or 1,710 people, have Astound Broadband fiber internet available to them in the city. The company covers the south, southeast, southwest, central, and east Newcastle area. Astound Broadband is one of the largest internet service providers internet service providers in the US, with internet service available in a small portion of Newcastle.
Astound Broadband fiber download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Newcastle. Versus other fiber providers in the area, Astound Broadband fiber is the slowest. There are no different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from Astound Broadband goes up to 1,500 Mbps, and all Newcastle customers can get this speed.
Show all download speeds
- 100.0% up to 1,500.0 Mbps
Astound Broadband fiber upload speeds
In Newcastle download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is above average where upload speeds are concerned, and the slowest compared to other Newcastle fiber providers. Astound Broadband offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Newcastle is up to 1,500 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 1,500.0 Mbps
EarthLink Fiber in Newcastle, CA
EarthLink fiber coverage
About 14.99%, or 1,120 people, have EarthLink fiber internet available to them in the city. The company covers the southeast, south, north, and northeast Newcastle area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Newcastle.
EarthLink fiber download speeds
EarthLink is one of the fastest when comparing download speeds to all other internet providers in Newcastle. Versus other fiber providers in the area, EarthLink fiber is one of the fastest. There are no different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from EarthLink goes up to 5,000 Mbps, and all Newcastle customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
EarthLink fiber upload speeds
In Newcastle download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Newcastle fiber providers. EarthLink offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Newcastle is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
AT&T Fiber in Newcastle, CA
AT&T fiber coverage
About 14.99%, or 1,120 people, have AT&T fiber internet available to them in the city. The company covers the southeast, south, north, and northeast Newcastle area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Newcastle.
AT&T fiber download speeds
AT&T is one of the fastest when comparing download speeds to all other internet providers in Newcastle. Versus other fiber providers in the area, AT&T fiber is one of the fastest. There are no different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from AT&T goes up to 5,000 Mbps, and all Newcastle customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
AT&T fiber upload speeds
In Newcastle download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Newcastle fiber providers. AT&T offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Newcastle is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Newcastle Fiber by Area
This information is most helpful to those looking for homes or considering moving to Newcastle or any of the areas nearby.
How does fiber internet in Newcastle compare to the rest of California?
Fiber internet speeds in Newcastle are much faster versus the average speeds in California: 0.00 Mbps in California versus 3,488 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in California is 0.00% versus 26.39% in Newcastle.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Newcastle 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
- Penryn, CA: more fiber coverage, slower speeds
- Loomis, CA: more fiber coverage, slower speeds
- North Auburn, CA: more fiber coverage, faster speeds
- Auburn, CA: more fiber coverage, faster speeds
- Rocklin, CA: more fiber coverage, slower speeds
- Lincoln, CA: more fiber coverage, slower speeds
- Cool, CA: more fiber coverage, faster speeds
- Clipper Gap, CA: less fiber coverage, slower speeds
- Granite Bay, CA: more fiber coverage, slower speeds
- Meadow Vista, CA: less fiber coverage, slower speeds
Cities with Similar Populations
- Columbia Station, OH: more fiber coverage, slower speeds
- Tazewell, TN: more fiber coverage, slower speeds
- Taylor Mill, KY: more fiber coverage, slower speeds
- Tallulah, LA: less fiber coverage, slower speeds
- Sunset, LA: more fiber coverage, slower speeds
- Sulphur, OK: more fiber coverage, slower speeds
- Sullivan, IN: more fiber coverage, slower speeds
- Strafford, MO: more fiber coverage, slower speeds
- Stoneville, NC: more fiber coverage, slower speeds
- Stewartville, MN: more fiber coverage, faster speeds