In Newcastle there are 4 residential DSL providers covering 69.61% of the city. The average home can get speeds up to 39 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 DSL 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
DSL 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 DSL internet available?
DSL Internet Availability Key
DSL is available in 69.61% of Newcastle. Areas in green have DSL internet service, where areas in yellow or red may not. The most widely available provider is Astound Broadband. Call one of the companies with service in Newcastle above to see who has service at your home.
How fast is DSL internet in Newcastle?
The map below shows maximum DSL internet speeds by area in Newcastle.
DSL Internet Speed Key
The average Newcastle home can get up to 39 Mbps on their DSL internet plan. The fastest DSL download speed in the city is 1,000 Mbps, which 1.10% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 55.20% of homes can only purchase plans up to 10 Mbps. See the internet provider details below for info about their speed and coverage in Newcastle.
DSL internet speeds tend to be faster in the central parts of Newcastle, and slower in the northwest areas of the city.
Is DSL 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 DSL 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.
DSL 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.
AT&T DSL in Newcastle, CA
AT&T DSL coverage
About 67.07%, or 5,012 people, have AT&T DSL internet available to them in the city. The company covers the entire Newcastle area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in much of Newcastle.
AT&T DSL download speeds
AT&T is one of the slowest when comparing download speeds to all other internet providers in Newcastle. Versus other DSL providers in the area, AT&T DSL is one of the slowest. There are 2 different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from AT&T goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Newcastle customers is up to 11 Mbps.
Show all download speeds
- 5.9% up to 25.0 Mbps
- 94.1% up to 10.0 Mbps
AT&T DSL upload speeds
In Newcastle download speeds tend to be faster than than upload speeds for AT&T DSL. Compared to other ISPs, AT&T is below average where upload speeds are concerned, and one of the slowest compared to other Newcastle DSL providers. AT&T 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 Newcastle is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, AT&T customers can get speeds up to 1.2 Mbps.
Show all upload speeds
- 5.9% up to 5.0 Mbps
- 94.1% up to 1.0 Mbps
EarthLink DSL in Newcastle, CA
EarthLink DSL coverage
About 67.07%, or 5,012 people, have EarthLink DSL internet available to them in the city. The company covers the entire Newcastle area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in much of Newcastle.
EarthLink DSL download speeds
EarthLink is one of the slowest when comparing download speeds to all other internet providers in Newcastle. Versus other DSL providers in the area, EarthLink DSL is one of the slowest. There are 2 different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from EarthLink goes up to 25 Mbps, the slowest package only goes up to 10 Mbps, and the city-wide average maximum speed for Newcastle customers is up to 11 Mbps.
Show all download speeds
- 5.9% up to 25.0 Mbps
- 94.1% up to 10.0 Mbps
EarthLink DSL upload speeds
In Newcastle download speeds tend to be faster than than upload speeds for EarthLink DSL. Compared to other ISPs, EarthLink is below average where upload speeds are concerned, and one of the slowest compared to other Newcastle DSL providers. EarthLink 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 Newcastle is up to 5.0 Mbps. Some customers have slower plan choices, which only go up to 1.0 Mbps. On average, EarthLink customers can get speeds up to 1.2 Mbps.
Show all upload speeds
- 5.9% up to 5.0 Mbps
- 94.1% up to 1.0 Mbps
Fidium Fiber DSL in Newcastle, CA
Fidium DSL coverage
About 9.35%, or 699 people, have Fidium DSL internet available to them in the city. The company covers the southeast and south Newcastle area. Fidium 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.
Fidium Fiber DSL download speeds
Fidium is below average when comparing download speeds to all other internet providers in Newcastle. Versus other DSL providers in the area, Fidium DSL is below average. There are no different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from Fidium goes up to 100 Mbps, and all Newcastle customers can get this speed.
Show all download speeds
- 100.0% up to 100.0 Mbps
Fidium Fiber DSL upload speeds
In Newcastle download speeds tend to be faster than than upload speeds for Fidium DSL. Compared to other ISPs, Fidium is below average where upload speeds are concerned, and one of the fastest compared to other Newcastle DSL providers. Fidium offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Newcastle is up to 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
Astound Broadband DSL in Newcastle, CA
Astound Broadband DSL coverage
About 1.10%, or 82 people, have Astound Broadband DSL internet available to them in the city. The company covers the central Newcastle area. Astound Broadband 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.
Astound Broadband DSL download speeds
Astound Broadband is above average when comparing download speeds to all other internet providers in Newcastle. Versus other DSL providers in the area, Astound Broadband DSL is the fastest. There are no different maximum speeds throughout Newcastle. The fastest plan anyone in Newcastle can order from Astound Broadband goes up to 1,000 Mbps, and all Newcastle customers can get this speed.
Show all download speeds
- 100.0% up to 1,000.0 Mbps
Astound Broadband DSL upload speeds
In Newcastle download speeds tend to be faster than than upload speeds for Astound Broadband DSL. Compared to other ISPs, Astound Broadband is below average where upload speeds are concerned, and one of the fastest compared to other Newcastle DSL 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 10 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10.0 Mbps
Newcastle DSL 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 DSL internet in Newcastle compare to the rest of California?
DSL internet speeds in Newcastle are much faster versus the average speeds in California: 0.00 Mbps in California versus 39 Mbps in the city. The state has similar DSL availability compared to the city. Average DSL coverage in California is 0.00% versus 69.61% in Newcastle.
What zip codes have DSL internet?
DSL 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 DSL 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 DSL coverage, faster speeds
- Loomis, CA: more DSL coverage, faster speeds
- North Auburn, CA: less DSL coverage, faster speeds
- Auburn, CA: less DSL coverage, faster speeds
- Pilot Hill, CA: less DSL coverage, slower speeds
- Rocklin, CA: more DSL coverage, faster speeds
- Lincoln, CA: more DSL coverage, faster speeds
- Cool, CA: less DSL coverage, slower speeds
- Clipper Gap, CA: less DSL coverage, slower speeds
- Granite Bay, CA: more DSL coverage, faster speeds
Cities with Similar Populations
- Columbia Station, OH: more DSL coverage, faster speeds
- Tazewell, TN: more DSL coverage, slower speeds
- Taylor Mill, KY: less DSL coverage, faster speeds
- Tallulah, LA: more DSL coverage, slower speeds
- Sunset, LA: more DSL coverage, faster speeds
- Sulphur, OK: more DSL coverage, slower speeds
- Sullivan, IN: more DSL coverage, slower speeds
- Strafford, MO: less DSL coverage, slower speeds
- Stoneville, NC: more DSL coverage, slower speeds
- Stewartville, MN: more DSL coverage, slower speeds