Best Internet Providers in Sunnyvale, CA
All 10 providers, ranked by coverage, speed and customer ratings
Find internet availability by address in Sunnyvale, CA
Sunnyvale has 10 internet service providers, they are sorted by coverage, available speed, and customer rating from our unbiased internet provider report. Cable, Fiber, DSL, and Fixed Wireless internet are available in the city. Reviews are grouped by provider and the type of service they offer, covering all 4 available internet technologies in Sunnyvale.
Ranks compare Sunnyvale with the 305 US medium cities (100,000 to 249,999 people), the tiers of our fastest-cities rankings.
The Best Internet in Sunnyvale, CA at a Glance
Sunnyvale Internet Providers, Ranked by Coverage, Speed and Customer Ratings
XFINITY
Connection
Customer Rating
Fiber
Cable
EarthLink
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
AT&T
Connection
Customer Rating
Fiber
DSL
Fixed Wireless
Etheric Networks
Connection
Customer Rating
Fixed Wireless
Providers with less than 1% coverage in this city are excluded from the list. To see if one of these providers is available at your home, please use the address search above.
Speed and technology may vary by address for all providers. Please note we may have a financial relationship with some of the providers above, which does not impact the customer ratings displayed. Customer ratings listed above are national ratings, local Sunnyvale ratings may vary and are shown below.
Who is the Best Internet Provider in Sunnyvale, CA?
AT&T is the highest-rated internet provider in Sunnyvale based on 387 California customer reviews, and T-Mobile Home Internet has the highest rating nationwide. The provider information above and the information immediately below can help you decide. Compare provider ratings and review counts above.
or call 1-877-610-1219
Which Providers are Available at my Home in Sunnyvale?
Coverage changes block by block. Pick a provider and a technology to see where its service reaches: the darker the area, the larger the share of homes it covers. For your exact address, use the address search above.
Coverage map for each provider in Sunnyvale
- AT&T - fiber coverage map
- EarthLink - fiber coverage map
- XFINITY - cable coverage map
- GeoLinks - fixed wireless coverage map
- Etheric Networks - fixed wireless coverage map
- Verizon - fixed wireless coverage map
- Sail Internet - fixed wireless coverage map
- T-Mobile Home Internet - fixed wireless coverage map
- Ridge Wireless - fixed wireless coverage map
- AT&T - dsl coverage map
- EarthLink - dsl coverage map
- XFINITY - fiber coverage map
- AT&T - fixed wireless coverage map
- EarthLink - fixed wireless coverage map
- Tekify - fixed wireless coverage map
- Sail Internet - dsl coverage map
- Sail Internet - fiber coverage map
How Sunnyvale Compares to Places Its Size
Sunnyvale's report card score is tied 154th of 305 and its connectivity index is tied 32nd of 305.
| Measure | Sunnyvale | Rank among US medium cities (100,000 to 249,999 people) | Santa Clara County | California | US | Leader |
|---|---|---|---|---|---|---|
| ISP Report Card inputs: what providers offer here | ||||||
| Fiber availability | 60.1% | 225th of 305 | 59.0% | 62.4% | 71.5% | Overland Park, KS (99.9%) |
| Average top speed | 3,375 Mbps | 194th of 305 | 4,067 Mbps | 3,834 Mbps | 3,486 Mbps | West Valley City, UT (9,708 Mbps) |
| Providers at a typical address | 10.4 | Tied 10th of 305 | 10.3 | 8 | 7.1 | Carolina, PR (12.6) |
| Connectivity index inputs: how much households need and use the internet | ||||||
| People per household | 2.6 | Tied 154th of 305 | 3.0 | 3.0 | 2.7 | Lakewood, NJ (5.1) |
| Workers who work from home | 29% | Tied 16th of 305 | 24% | 17% | 15% | Frisco, TX (38%) |
| Homes with a computer, tablet or phone | 99% | Tied 1st of 305 | 98% | 97% | 96% | Tied with 45 other places at 99% |
| Homes with internet | 97% | Tied 11th of 305 | 95% | 94% | 91% | Allen, TX and Cumming, GA and 8 more (98%) |
| Homes on fiber, cable or DSL | 89% | Tied 13th of 305 | 85% | 79% | 76% | Highlands Ranch, CO (92%) |
| More about the households here | ||||||
| Homes with a desktop or laptop | 93% | Tied 15th of 305 | 90% | 84% | 81% | Frisco, TX (96%) |
| Median household income | $189,225 | 1st of 305 | $169,968 | $111,728 | $93,246 | Leads; next is Santa Clara, CA ($186,410) |
| Residents in school (6th grade to college) | 13% | Tied 278th of 305 | 17% | 17% | 16% | College Station, TX (57%) |
Fiber reaches 60.1% of homes in Sunnyvale, against 59.0% across Santa Clara County and 62.4% across California. Households in Sunnyvale are smaller than the US average (2.6 people against 2.7); 29% of workers work from home (US 15%); and the median household income is $189,225 (US $93,246).
Our demographic data is sourced from the latest 5-year release of the American Community Survey by the US Census Bureau.
Fiber, 5G, Cable and DSL Internet in Sunnyvale
Which Fiber Internet Providers are Available in Sunnyvale?
EarthLink Fiber in Sunnyvale, CA
Availability:
59.4%
Customer Rating:
(6)
Avg. Download Speed
4,458 Mbps
EarthLink offers Fiber service to 59.4% of Sunnyvale homes. Across the city, EarthLink Fiber has speeds up to 4,458 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for EarthLink Fiber. EarthLink Fiber is rated about the same as other types of internet service available in Sunnyvale from EarthLink in terms of customer satisfaction.
AT&T Fiber in Sunnyvale, CA
Availability:
59.4%
Customer Rating:
(542)
Avg. Download Speed
4,458 Mbps
AT&T offers Fiber service to 59.4% of Sunnyvale homes. Across the city, AT&T Fiber has speeds up to 4,458 Mbps, with speeds from 1,000 Mpbs up to 5,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for AT&T Fiber. AT&T Fiber is rated lower than other types of internet service available in Sunnyvale from AT&T in terms of customer satisfaction.
XFINITY Fiber in Sunnyvale, CA
Availability:
2.5%
Customer Rating:
(298)
Avg. Download Speed
1,864 Mbps
XFINITY from Comcast offers Fiber service to 2.5% of Sunnyvale homes. Across the city, XFINITY Fiber has speeds up to 1,864 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 2,000, with an average of 1,303 Mbps throughout the city. XFINITY Fiber is rated about the same as other types of internet service available in Sunnyvale from XFINITY in terms of customer satisfaction.
Sail Internet Fiber in Sunnyvale, CA
Availability:
1.0%
Customer Rating:
(0)
Avg. Download Speed
1,000 Mbps
Sail Internet offers Fiber service to 1.0% of Sunnyvale homes. Across the city, Sail Internet Fiber has speeds up to 1,000 Mbps
Which Fixed Wireless and LTE Internet Providers are Available in Sunnyvale?
Etheric Networks Fixed Wireless in Sunnyvale, CA
Availability:
99.3%
Customer Rating:
(0)
Avg. Download Speed
250 Mbps
Etheric Networks offers Fixed Wireless service to 99.3% of Sunnyvale homes. Across the city, Etheric Networks Fixed Wireless is the only type of service available from the company, with speeds up to 250 Mbps
Ridge Wireless Fixed Wireless in Sunnyvale, CA
Availability:
98.5%
Customer Rating:
(0)
Avg. Download Speed
80 Mbps
Ridge Wireless offers Fixed Wireless service to 98.5% of Sunnyvale homes. Across the city, Ridge Wireless Fixed Wireless is the only type of service available from the company, with speeds up to 80 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 60, with an average of 38 Mbps throughout the city.
T-Mobile Home Internet Fixed Wireless in Sunnyvale, CA
Availability:
98.0%
Customer Rating:
(341)
Avg. Download Speed
87 Mbps
T-Mobile Home Internet offers Fixed Wireless service to 98.0% of Sunnyvale homes. Across the city, T-Mobile Home Internet Fixed Wireless is the only type of service available from the company, with speeds up to 87 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 17 Mbps throughout the city.
Verizon Fixed Wireless in Sunnyvale, CA
Availability:
94.3%
Customer Rating:
(362)
Avg. Download Speed
204 Mbps
Verizon offers Fixed Wireless service to 94.3% of Sunnyvale homes. Across the city, Verizon Fixed Wireless is the only type of service available from the company, with speeds up to 204 Mbps, with speeds from 25 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 6.0 and as high as 75, with an average of 16 Mbps throughout the city.
EarthLink Fixed Wireless in Sunnyvale, CA
Availability:
81.3%
Customer Rating:
(4)
Avg. Download Speed
41 Mbps
EarthLink offers Fixed Wireless service to 81.3% of Sunnyvale homes. Across the city, EarthLink Fixed Wireless has speeds up to 41 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.6 Mbps throughout the city.
AT&T Fixed Wireless in Sunnyvale, CA
Availability:
81.3%
Customer Rating:
(205)
Avg. Download Speed
41 Mbps
AT&T offers Fixed Wireless service to 81.3% of Sunnyvale homes. Across the city, AT&T Fixed Wireless has speeds up to 41 Mbps, with speeds from 25 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 3.0 and as high as 20, with an average of 6.6 Mbps throughout the city.
GeoLinks Fixed Wireless in Sunnyvale, CA
Availability:
38.6%
Customer Rating:
(0)
Avg. Download Speed
995 Mbps
GeoLinks offers Fixed Wireless service to 38.6% of Sunnyvale homes. Across the city, GeoLinks Fixed Wireless is the only type of service available from the company, with speeds up to 995 Mbps, with speeds from 200 Mpbs up to 1,000 Mbps depending on the address. Upload speeds are symmetrical, meaning they are exactly the same as download speeds for GeoLinks Fixed Wireless.
Tekify Fixed Wireless in Sunnyvale, CA
Availability:
33.1%
Customer Rating:
(0)
Avg. Download Speed
93 Mbps
Tekify offers Fixed Wireless service to 33.1% of Sunnyvale homes. Across the city, Tekify Fixed Wireless is the only type of service available from the company, with speeds up to 93 Mbps, with speeds from 77 Mpbs up to 144 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 17 and as high as 32, with an average of 21 Mbps throughout the city.
Sail Internet Fixed Wireless in Sunnyvale, CA
Availability:
18.2%
Customer Rating:
(0)
Avg. Download Speed
518 Mbps
Sail Internet offers Fixed Wireless service to 18.2% of Sunnyvale homes. Across the city, Sail Internet Fixed Wireless has speeds up to 518 Mbps, with speeds from 200 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 50 and as high as 200, with an average of 109 Mbps throughout the city.
Which Cable Internet Providers are Available in Sunnyvale?
XFINITY Cable in Sunnyvale, CA
Availability:
98.4%
Customer Rating:
(2074)
Avg. Download Speed
1,675 Mbps
XFINITY from Comcast offers Cable service to 98.4% of Sunnyvale homes. Across the city, XFINITY Cable has speeds up to 1,675 Mbps, with speeds from 1,200 Mpbs up to 2,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 35 and as high as 2,000, with an average of 211 Mbps throughout the city. XFINITY Cable is rated the same as other types of internet service available in Sunnyvale from XFINITY in terms of customer satisfaction.
Which DSL Internet Providers are Available in Sunnyvale?
EarthLink DSL in Sunnyvale, CA
Availability:
84.6%
Customer Rating:
(5)
Avg. Download Speed
79 Mbps
EarthLink offers DSL service to 84.6% of Sunnyvale homes. Across the city, EarthLink DSL has speeds up to 79 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 17 Mbps throughout the city. EarthLink DSL is rated higher than other types of internet service available in Sunnyvale from EarthLink in terms of customer satisfaction.
AT&T DSL in Sunnyvale, CA
Availability:
84.6%
Customer Rating:
(304)
Avg. Download Speed
79 Mbps
AT&T offers DSL service to 84.6% of Sunnyvale homes. Across the city, AT&T DSL has speeds up to 79 Mbps, with speeds from 10 Mpbs up to 100 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 1.0 and as high as 20, with an average of 17 Mbps throughout the city. AT&T DSL is rated about the same as other types of internet service available in Sunnyvale from AT&T in terms of customer satisfaction.
Sail Internet DSL in Sunnyvale, CA
Availability:
2.3%
Customer Rating:
(0)
Avg. Download Speed
804 Mbps
Sail Internet offers DSL service to 2.3% of Sunnyvale homes. Across the city, Sail Internet DSL has speeds up to 804 Mbps, with speeds from 200 Mpbs up to 1,000 Mbps depending on the address. Upload speeds differ from download speeds, and are as low 100 and as high as 1,000, with an average of 779 Mbps throughout the city.
Internet in Sunnyvale by Neighborhood and ZIP Code
Fiber reaches from 41.5% of homes in Ponderosa Park to 91.0% in San Miguel; by ZIP code, from 54.8% in 94089 to 71.6% in 94085. Each row links to that place’s page.
Neighborhoods in Sunnyvale
| Neighborhood | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Sunnyvale West | 47,057 | 52.7% | 3,135 Mbps | 9.9 | B | 88/100 |
| Ponderosa Park | 14,487 | 41.5% | 3,058 Mbps | 9.2 | B | 89/100 |
| Heritage District | 10,542 | 71.9% | 3,528 Mbps | 10.9 | B+ | 77/100 |
| Lakewood | 9,023 | 71.4% | 3,987 Mbps | 11 | B+ | 90/100 |
| Snail | 8,990 | 69.9% | 3,727 Mbps | 12.5 | B+ | 86/100 |
| Birdland Neighbors | 5,997 | 67.5% | 3,765 Mbps | 9.3 | B+ | 96/100 |
| San Miguel | 5,271 | 91.0% | 4,354 Mbps | 12.2 | A- | 84/100 |
| Lowlanders | 3,703 | 64.0% | 3,934 Mbps | 11.7 | B+ | 87/100 |
ZIP codes in Sunnyvale
How Sunnyvale Compares to Nearby Places
The 10 places nearest to Sunnyvale that have their own pages are all within 8 miles. Among them, Los Altos has the most homes with fiber (88.1%) and Milpitas the fewest (46.3%); Sunnyvale has 60.1%.
| Place | People | Homes with fiber | Average top speed | Providers at a typical address | Report card | Connectivity |
|---|---|---|---|---|---|---|
| Sunnyvale (this page) | 152,915 | 60.1% | 3,375 Mbps | 10.4 | B+ | 88/100 |
| Santa Clara | 129,391 | 54.1% | 3,480 Mbps | 10.9 | B+ | 86/100 |
| Mountain View | 84,882 | 73.1% | 3,720 Mbps | 10.9 | B+ | 82/100 |
| Milpitas | 83,361 | 46.3% | 3,171 Mbps | 11.2 | B | 94/100 |
| Palo Alto | 68,183 | 80.3% | 4,422 Mbps | 10.4 | A- | 90/100 |
| Cupertino | 63,205 | 72.0% | 3,880 Mbps | 10.4 | B+ | 93/100 |
| Campbell | 51,924 | 79.0% | 4,289 Mbps | 10.8 | B+ | 83/100 |
| Los Altos | 38,328 | 88.1% | 4,648 Mbps | 10.8 | A- | 93/100 |
| Saratoga | 33,432 | 63.1% | 3,795 Mbps | 9.8 | B+ | 94/100 |
| Los Altos Hills | 8,937 | 57.0% | 4,802 Mbps | 10.5 | B+ | 88/100 |
| Alviso | 2,089 | 84.2% | 4,180 Mbps | 10.5 | A- | 61/100 |
Who is the Fastest Internet Provider in Sunnyvale?
According to unbiased feedback from real internet customers, they reported being happiest with speeds provided by XFINITY from Comcast. On the other hand, based on data provided by the internet providers to the FCC, AT&T and EarthLink should have faster speeds at a local level. While we typically put more weight on real-world customer ratings, we display both satisfaction and technical maximum information for customers to decide for themselves.
Data Reported to FCC by ISPs: Average Maximum Available in Sunnyvale
| AT&T | 5,000 |
|---|---|
| EarthLink | 5,000 |
| XFINITY from Comcast | 2,000 |
| Verizon | 1,000 |
| GeoLinks | 1,000 |
| Sail Internet | 1,000 |
| Etheric Networks | 250 |
| Tekify | 144 |
| Viasat | 100 |
| Ridge Wireless | 100 |
| T-Mobile Home Internet | 100 |
| HughesNet | 25 |
How fast is your internet?
Test your connection here and see it next to the speeds providers advertise in Sunnyvale. It takes about 20 seconds and, on a fast line, can move a few hundred MB of data.
Customer Ratings for Sunnyvale Internet Providers
Based on 387 reviews from California internet customers, AT&T is the best internet service provider for Sunnyvale residents. AT&T was rated at an average of 3.34 out of 5 in our report for overall customer satisfaction. XFINITY from Comcast wins for second-place in California, with 4.00 out of 5 stars and 99.0% coverage in Sunnyvale.
At a national level, based on 4596 national reviews for any of the providers listed above, T-Mobile Home Internet is rated higher than any other provider, with a rating of 4.01 out of 5.
Local, State, and National Ratings for all Sunnyvale Internet Providers
The table below shows average customer ratings from customers in Sunnyvale, California, and customers throughout the country.
| ISP / Tech Type | Sunnyvale Overall | California Overall | National Overall | For Service | ||
|---|---|---|---|---|---|---|
| AT&T | (1) | (119) | (1051) | View Plans | ||
| T-Mobile Home Internet | (1) | (27) | (341) | View Plans | ||
| XFINITY | (1) | (211) | (2374) | View Plans | ||
| EarthLink | (0) |  (2) | (15) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| Verizon | (0) | (28) | (815) | View Plans | ||
| Viasat | (0) | (1) |  (12) | View Plans | ||
| Ridge Wireless | (0) | (0) | (0) | View Plans | ||
| Tekify | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Ratings for Internet Provider Speeds in Sunnyvale
Based on data reported by Sunnyvale ISPs to the FCC, the fastest speeds in the city are available through AT&T and EarthLink. These internet providers offer speeds up to 5,000 Mbps in Sunnyvale. Therefore, the average customer can get up to 2,709 Mbps if they’re willing to purchase the fastest subscription tier available at their homes.
However, actual customers rated their satisfaction with internet speed highest with XFINITY from Comcast. This indicates XFINITY reliably delivers speeds expected by the customer based on the plan they are paying for.
| ISP / Tech Type | Sunnyvale Speed | California Speed | National Speed | For Service | ||
|---|---|---|---|---|---|---|
| XFINITY |  (1) | (211) | (2374) | View Plans | ||
| AT&T | (1) | (119) | (1051) | View Plans | ||
| T-Mobile Home Internet | (1) | (27) | (341) | View Plans | ||
| EarthLink | (0) |  (2) | (15) | View Plans | ||
| HughesNet | (0) |  (1) | (25) | View Plans | ||
| Verizon | (0) | (28) | (815) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| Ridge Wireless | (0) | (0) | (0) | View Plans | ||
| Tekify | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Who is the Cheapest Internet Provider in Sunnyvale?
Of the providers in Sunnyvale, customers rate AT&T the best for price. Data comes from customers rating their satisfaction with pricing: in Sunnyvale where enough of them have reviewed a provider, otherwise across California or the country. This feedback is valuable because it considers price changes and whether the speeds paid for are worth it.
AT&T is rated 4.00 out of 5 for price, which is higher than the average across all internet providers in the country. EarthLink is rated second for affordability, with an average price rating of 2.00 out of 5.
The table below shows how customers in Sunnyvale, California, and the United States rated the affordability of their internet service.
Rated Affordability in Sunnyvale
| ISP / Tech Type | Sunnyvale Affordability | California Affordability | National Affordability | For Service | ||
|---|---|---|---|---|---|---|
| AT&T | (1) | (119) | (1051) | View Plans | ||
| T-Mobile Home Internet | (1) |  (27) | (341) | View Plans | ||
| EarthLink | (0) | (2) | (15) | View Plans | ||
| HughesNet | (0) | (1) | (25) | View Plans | ||
| Verizon | (0) | (28) | (815) | View Plans | ||
| Viasat | (0) | (1) | (12) | View Plans | ||
| XFINITY | (1) | (211) | (2374) | View Plans | ||
| Ridge Wireless | (0) | (0) | (0) | View Plans | ||
| Tekify | (0) | (0) | (0) | View Plans | ||
| Etheric Networks | (0) | (0) | (0) | View Plans | ||
| Sail Internet | (0) | (0) | (0) | View Plans | ||
| GeoLinks | (0) | (0) | (0) | View Plans |
Customer Reviews for Internet Service Providers in California
Customer Reviews
anthony N.
Toast Fiber
November 29, 2025 My provider is an out of state company that uses AT&T backbone. I pay about $45/month which is low compared to competition but the speed is throttled to about 15mbps. Which is satisfactory for my needs. I like this ISP because over the course of 5+ years I've been with them, they have never raised my rates or added any additional fees/charges. I've never had such a smooth experience with an ISP.
A Sunnyvale, CA Customer
T-Mobile Home Internet Fixed Wireless
December 27, 2024 VERY GOOD. THE SPEED IS FAST AND LESS EXPENSIVE
A Sunnyvale, CA Customer
AT&T Fiber
September 08, 2024 A California customer
XFINITY Cable
March 31, 2023 They are not good in pricing but they are the only one that is dependable in the area and provides fast speeds.
Robert
Verizon Fixed Wireless
November 10, 2026 Was cut off with .out notice due to upgrade and was not provided connection to upgrade from the same location (tower). Causing further problems in service and added cost.
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Which ISP Should You Choose in Sunnyvale?
The right ISP for you depends upon your needs, but in general we can make the following suggestions:
- The best all-around internet service provider in Sunnyvale is AT&T.
- The fastest internet provider should be AT&T and EarthLink. Considering speed for the money and reliability in speeds, XFINITY from Comcast may be a better choice based on real-world local customer feedback.
- The most affordable internet provider in Sunnyvale is AT&T.
- Viasat, HughesNet, and Etheric Networks has the broadest coverage in Sunnyvale, available to 99.3% of homes, and is most likely to cover your home. To find out exactly what’s available at your home, please use our address search tool.