In Grantville there are 4 residential Fiber providers covering 87.06% of the neighborhood. The average home can get speeds up to 4,393 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 Grantville, San Diego, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Grantville, San Diego, CA please click below.
Grantville, San Diego, CA Availability Maps
Fiber Internet Service Providers in Grantville
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 Grantville are not shown.
Grantville 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 Grantville is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 87.06% of Grantville. 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 Grantville above to see who has service at your home.
How fast is fiber internet in Grantville?
The map below shows maximum fiber internet speeds by area in Grantville.
Fiber Internet Speed Key
The average Grantville home can get up to 4,393 Mbps on their fiber internet plan. The fastest fiber download speed in the neighborhood is 5,000 Mbps, which 73.84% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 13.22% of homes can only purchase plans up to 1,000 Mbps. See the internet provider details below for info about their speed and coverage in Grantville.
Fiber internet speeds tend to be faster in the northwest parts of Grantville, and slower in the southwest areas of the neighborhood.
Is fiber the fastest internet I can get in Grantville?
The fastest internet for you may vary based on where in Grantville you live. In general, cable competes most often with fiber in the neighborhood.
- Fiber is the fastest internet type for 87.06% of Grantville homes.
- Cable is fastest for 12.81% of the neighborhood.
- 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 Grantville homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Grantville, along with details on where in Grantville and at what speeds.
EarthLink Fiber in Grantville, San Diego, CA
EarthLink fiber coverage
About 87.06%, or 12,155 people, have EarthLink fiber internet available to them in the neighborhood. The company covers the entire Grantville area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in most of Grantville.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Grantville. Versus other fiber providers in the area, EarthLink fiber is above average. There are 2 different maximum speeds throughout Grantville. The fastest plan anyone in Grantville can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for Grantville customers is up to 4,393 Mbps.
Show all download speeds
- 84.8% up to 5,000.0 Mbps
- 15.2% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Grantville download speeds tend to be equal to than upload speeds for EarthLink fiber. Compared to other ISPs, EarthLink is above average where upload speeds are concerned, and above average compared to other Grantville fiber providers. EarthLink offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Grantville is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, EarthLink customers can get speeds up to 4,393 Mbps.
Show all upload speeds
- 84.8% up to 5,000.0 Mbps
- 15.2% up to 1,000.0 Mbps
AT&T Fiber in Grantville, San Diego, CA
AT&T fiber coverage
About 87.06%, or 12,155 people, have AT&T fiber internet available to them in the neighborhood. The company covers the entire Grantville area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in most of Grantville.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Grantville. Versus other fiber providers in the area, AT&T fiber is above average. There are 2 different maximum speeds throughout Grantville. The fastest plan anyone in Grantville can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for Grantville customers is up to 4,393 Mbps.
Show all download speeds
- 84.8% up to 5,000.0 Mbps
- 15.2% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Grantville download speeds tend to be equal to than upload speeds for AT&T fiber. Compared to other ISPs, AT&T is above average where upload speeds are concerned, and above average compared to other Grantville fiber providers. AT&T offers 2 different upload speeds across the neighborhood, so your internet plan's upload speed may vary by neighborhood . The fastest upload speed available to anyone from this ISP in Grantville is up to 5,000 Mbps. Some customers have slower plan choices, which only go up to 1,000 Mbps. On average, AT&T customers can get speeds up to 4,393 Mbps.
Show all upload speeds
- 84.8% up to 5,000.0 Mbps
- 15.2% up to 1,000.0 Mbps
Astound Broadband Fiber in Grantville, San Diego, CA
Astound Broadband fiber coverage
About 9.73%, or 1,358 people, have Astound Broadband fiber internet available to them in the neighborhood. The company covers the central Grantville 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 Grantville.
Astound Broadband fiber download speeds
Astound Broadband is the fastest when comparing download speeds to all other internet providers in Grantville. Versus other fiber providers in the area, Astound Broadband fiber is the fastest. There are no different maximum speeds throughout Grantville. The fastest plan anyone in Grantville can order from Astound Broadband goes up to 5,000 Mbps, and all Grantville customers can get this speed.
Show all download speeds
- 100.0% up to 5,000.0 Mbps
Astound Broadband fiber upload speeds
In Grantville download speeds tend to be equal to than upload speeds for Astound Broadband fiber. Compared to other ISPs, Astound Broadband is the fastest where upload speeds are concerned, and the fastest compared to other Grantville fiber providers. Astound Broadband offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Grantville is up to 5,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 5,000.0 Mbps
Cox Communications Fiber in Grantville, San Diego, CA
Cox fiber coverage
About 4.64%, or 648 people, have Cox fiber internet available to them in the neighborhood. The company covers the south Grantville area. Cox is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Grantville.
Cox Communications fiber download speeds
Cox is below average when comparing download speeds to all other internet providers in Grantville. Versus other fiber providers in the area, Cox fiber is the slowest. There are 2 different maximum speeds throughout Grantville. The fastest plan anyone in Grantville can order from Cox goes up to 2,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the neighborhood-wide average maximum speed for Grantville customers is up to 1,137 Mbps.
Show all download speeds
- 13.7% up to 2,000.0 Mbps
- 86.3% up to 1,000.0 Mbps
Cox Communications fiber upload speeds
In Grantville download speeds tend to be faster than than upload speeds for Cox fiber. Compared to other ISPs, Cox is below average where upload speeds are concerned, and the slowest compared to other Grantville fiber providers. Cox offers no different upload speeds across the neighborhood. The fastest upload speed available to anyone from this ISP in Grantville is up to 100 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 100.0 Mbps
Grantville Fiber by Area
This information is most helpful to those looking for homes or considering moving to Grantville or any of the areas nearby.
How does fiber internet in Grantville compare to the rest of San Diego?
Fiber internet speeds in Grantville are much faster versus the average speeds in San Diego: 0.00 Mbps in San Diego versus 4,393 Mbps in the neighborhood. The city has similar fiber availability compared to the neighborhood. Average fiber coverage in San Diego is 0.00% versus 87.06% in Grantville.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Grantville 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 neighborhoods?
Below are neighborhoods nearby and with similar populations. This comparison can be useful if living somewhere with fast internet is important to you.
Nearby Neighborhoods
- Allied Gardens, San Diego, CA: less fiber coverage, faster speeds
- Kensington, San Diego, CA: more fiber coverage, slower speeds
- Serra Mesa, San Diego, CA: less fiber coverage, faster speeds
- Del Cerro, San Diego, CA: less fiber coverage, faster speeds
- Normal Heights, San Diego, CA: more fiber coverage, slower speeds
- Talmadge, San Diego, CA: less fiber coverage, faster speeds
- College Area, San Diego, CA: less fiber coverage, faster speeds
- East San Diego, San Diego, CA: less fiber coverage, slower speeds
- Tierrasanta, San Diego, CA: less fiber coverage, slower speeds
- Mission Valley East, San Diego, CA: more fiber coverage, slower speeds
Neighborhoods with Similar Populations
- South Side, Mount Vernon, NY: more fiber coverage, slower speeds
- Carrick, Pittsburgh, PA: more fiber coverage, slower speeds
- Chambersburg, Trenton, NJ: more fiber coverage, slower speeds
- Columbia City, Seattle, WA: more fiber coverage, slower speeds
- Columbus Park, Worcester, MA: less fiber coverage, slower speeds
- Crescenta Highlands, La Crescenta, CA: less fiber coverage, faster speeds
- Fremont, Seattle, WA: more fiber coverage, slower speeds
- Glencliff, Nashville, TN: more fiber coverage, faster speeds
- Granville Gardens, Chicago, IL: less fiber coverage, slower speeds
- Savage-Guilford, Laurel, MD: more fiber coverage, slower speeds