In Union City there are 4 residential Fiber providers covering 38.74% of the city. The average home can get speeds up to 5,950 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 Union City, CA.
To see availability maps for all providers including fiber, cable, DSL, and more in Union City, CA please click below.
Union City, CA Availability Maps
Fiber Internet Service Providers in Union City
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 Union City are not shown.
Union City 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 Union City is fiber internet available?
Fiber Internet Availability Key
Fiber is available in 38.74% of Union City. 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 Union City above to see who has service at your home.
How fast is fiber internet in Union City?
The map below shows maximum fiber internet speeds by area in Union City.
Fiber Internet Speed Key
The average Union City home can get up to 5,950 Mbps on their fiber internet plan. The fastest fiber download speed in the city is 10,000 Mbps, which 12.89% of residents can get. Some homes and apartments do not have access to these speeds. On the slower end, for example, 6.91% 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 Union City.
Fiber internet speeds tend to be faster in the northeast parts of Union City, and slower in the south areas of the city.
Is fiber the fastest internet I can get in Union City?
The fastest internet for you may vary based on where in Union City you live. In general, cable competes most often with fiber in the city.
- Fiber is the fastest internet type for 31.87% of Union City homes.
- Cable is fastest for 67.67% 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 Union City homes.
Fiber Providers in Depth
Below you'll find which TV and internet providers offer service in Union City, along with details on where in Union City and at what speeds.
EarthLink Fiber in Union City, CA
EarthLink fiber coverage
About 38.47%, or 27,990 people, have EarthLink fiber internet available to them in the city. The company covers the entire Union City area. EarthLink is one of the largest internet service providers internet service providers in the US, with internet service available in some of Union City.
EarthLink fiber download speeds
EarthLink is above average when comparing download speeds to all other internet providers in Union City. Versus other fiber providers in the area, EarthLink fiber is below average. There are 2 different maximum speeds throughout Union City. The fastest plan anyone in Union City can order from EarthLink goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Union City customers is up to 4,281 Mbps.
Show all download speeds
- 82.0% up to 5,000.0 Mbps
- 18.0% up to 1,000.0 Mbps
EarthLink fiber upload speeds
In Union City 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 below average compared to other Union City fiber 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 Union City 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 4,281 Mbps.
Show all upload speeds
- 82.0% up to 5,000.0 Mbps
- 18.0% up to 1,000.0 Mbps
AT&T Fiber in Union City, CA
AT&T fiber coverage
About 38.47%, or 27,990 people, have AT&T fiber internet available to them in the city. The company covers the entire Union City area. AT&T is one of the largest internet service providers internet service providers in the US, with internet service available in some of Union City.
AT&T fiber download speeds
AT&T is above average when comparing download speeds to all other internet providers in Union City. Versus other fiber providers in the area, AT&T fiber is below average. There are 2 different maximum speeds throughout Union City. The fastest plan anyone in Union City can order from AT&T goes up to 5,000 Mbps, the slowest package only goes up to 1,000 Mbps, and the city-wide average maximum speed for Union City customers is up to 4,281 Mbps.
Show all download speeds
- 82.0% up to 5,000.0 Mbps
- 18.0% up to 1,000.0 Mbps
AT&T fiber upload speeds
In Union City 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 below average compared to other Union City fiber 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 Union City 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 4,281 Mbps.
Show all upload speeds
- 82.0% up to 5,000.0 Mbps
- 18.0% up to 1,000.0 Mbps
Sonic Fiber in Union City, CA
Sonic fiber coverage
About 12.89%, or 9,378 people, have Sonic fiber internet available to them in the city. The company covers the northeast, east, central, and north Union City area. Sonic is a large internet service provider internet service providers in the US, with internet service available in a very small piece of Union City.
Sonic fiber download speeds
Sonic is one of the fastest when comparing download speeds to all other internet providers in Union City. Versus other fiber providers in the area, Sonic fiber is one of the fastest. There are no different maximum speeds throughout Union City. The fastest plan anyone in Union City can order from Sonic goes up to 10,000 Mbps, and all Union City customers can get this speed.
Show all download speeds
- 100.0% up to 10,000.0 Mbps
Sonic fiber upload speeds
In Union City download speeds tend to be equal to than upload speeds for Sonic fiber. Compared to other ISPs, Sonic is one of the fastest where upload speeds are concerned, and one of the fastest compared to other Union City fiber providers. Sonic offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Union City is up to 10,000 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 10,000.0 Mbps
XFINITY from Comcast Fiber in Union City, CA
XFINITY fiber coverage
About 1.37%, or 999 people, have XFINITY fiber internet available to them in the city. The company covers the east Union City area. XFINITY is one of the largest internet service providers internet service providers in the US, with internet service available in a very small piece of Union City.
XFINITY from Comcast fiber download speeds
XFINITY is below average when comparing download speeds to all other internet providers in Union City. Versus other fiber providers in the area, XFINITY fiber is the slowest. There are no different maximum speeds throughout Union City. The fastest plan anyone in Union City can order from XFINITY goes up to 1,200 Mbps, and all Union City customers can get this speed.
Show all download speeds
- 100.0% up to 1,200.0 Mbps
XFINITY from Comcast fiber upload speeds
In Union City download speeds tend to be faster than than upload speeds for XFINITY fiber. Compared to other ISPs, XFINITY is below average where upload speeds are concerned, and the slowest compared to other Union City fiber providers. XFINITY offers no different upload speeds across the city. The fastest upload speed available to anyone from this ISP in Union City is up to 35 Mbps, which is available to everyone covered.
Show all upload speeds
- 100.0% up to 35.0 Mbps
Union City Fiber by Area
This information is most helpful to those looking for homes or considering moving to Union City or any of the areas nearby.
How does fiber internet in Union City compare to the rest of California?
Fiber internet speeds in Union City are much faster versus the average speeds in California: 0.00 Mbps in California versus 5,950 Mbps in the city. The state has similar fiber availability compared to the city. Average fiber coverage in California is 0.00% versus 38.74% in Union City.
What zip codes have fiber internet?
Fiber internet coverage varies by zip code and neighborhood. Some examples in or around Union City 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
- Newark, CA: more fiber coverage, slower speeds
- Hayward, CA: more fiber coverage, slower speeds
- Fremont, CA: more fiber coverage, slower speeds
- Fairview, CA: more fiber coverage, slower speeds
- Cherryland, CA: more fiber coverage, faster speeds
- San Lorenzo, CA: more fiber coverage, faster speeds
- Sunol, CA: more fiber coverage, slower speeds
- Ashland, CA: more fiber coverage, faster speeds
- East Palo Alto, CA: more fiber coverage, slower speeds
- Pleasanton, CA: less fiber coverage, slower speeds
Cities with Similar Populations
- Zemple, MN: more fiber coverage, slower speeds
- Woodlawn, TX: more fiber coverage, slower speeds
- Wyoming, MI: more fiber coverage, slower speeds
- Woodmere, OH: more fiber coverage, slower speeds
- Woodrow, AR: more fiber coverage, slower speeds
- Woodrow, CO: less fiber coverage, slower speeds
- Zevely, WV: more fiber coverage, slower speeds
- Woods Bay, MT: more fiber coverage, slower speeds
- Woodsburgh, NY: more fiber coverage, faster speeds
- Wyatts Chapel, TN: more fiber coverage, slower speeds