RealSpeeds

Internet Speeds in Cupertino, CA

There are 2 internet providers operating in Cupertino, the most popular being Xfinity. Xfinity offers cable internet service. In 15,780 recent tests, on average, we have been seeing 140 Mbps for download speeds and 12 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL, fiber and fixed wireless internet service is also available from AT&T.

While these are the real speeds we have been seeing in our research, there are many factors that go into the actual download and upload speeds you will encounter.

Last updated on February 3, 2023
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
View Details →
140 Mbps12 Mbps9 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
154 Mbps65 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Cupertino, CA

Xfinity

Cable

Download Speed

140Mbps

Upload Speed

12Mbps

Latency

9ms

Overview

Xfinity is the most popular provider in Cupertino offering cable internet service. Users have been getting 140 Mbps for download speeds and 12 Mbps for upload speeds over 15,780 recent tests.

Performance Breakdown

Xfinity has the 2nd fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Cupertino. 25% of users saw download speeds between 100-250 Mbps, and 47% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Cupertino

DateDownload SpeedUpload SpeedLatency
February 2, 20239 Mbps9 Mbps16 ms
February 2, 2023168 Mbps41 Mbpsn/a ms
February 2, 202342 Mbps9 Mbps9 ms
February 2, 2023200 Mbps12 Mbps13 ms
February 2, 2023154 Mbps1 Mbps10 ms
February 2, 2023228 Mbps12 Mbps9 ms
February 2, 2023299 Mbps39 Mbps16 ms
February 2, 2023707 Mbps41 Mbps5 ms
February 2, 2023301 Mbps39 Mbpsn/a ms
February 2, 20231 Mbps9 Mbps53 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

154Mbps

Upload Speed

65Mbps

Latency

6ms

Overview

AT&T is the 2nd most popular provider in Cupertino offering DSL, fiber and fixed wireless internet service. Users have been getting 154 Mbps for download speeds and 65 Mbps for upload speeds over 10,192 recent tests.

Performance Breakdown

AT&T has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in Cupertino. 26% of users saw download speeds between 250-500 Mbps, and 26% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in Cupertino

DateDownload SpeedUpload SpeedLatency
February 2, 2023681 Mbps313 Mbps6 ms
February 2, 202357 Mbps57 Mbps7 ms
February 2, 2023362 Mbps358 Mbps7 ms
February 2, 2023448 Mbps490 Mbps7 ms
February 2, 2023490 Mbps471 Mbpsn/a ms
February 2, 202339 Mbps12 Mbps31 ms
February 2, 202355 Mbps12 Mbps19 ms
February 2, 202392 Mbps18 Mbps23 ms
February 2, 2023577 Mbps497 Mbps9 ms
February 2, 202346 Mbps31 Mbps5 ms

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Frequently Asked Questions

What internet providers are available in Cupertino, CA?

Xfinity and AT&T currently operate in Cupertino.

What is the most popular internet provider in Cupertino, CA?

Xfinity is currently the most popular internet provider in Cupertino based on the number of speed tests in the last 3 months.

What is the fastest internet provider in Cupertino, CA?

The fastest internet provider for you is going to differ based on your needs, and which providers actually serve your home. However, when it comes to the real speeds users in Cupertino are getting, AT&T provides the fastest download speeds and AT&T provides the fastest upload speeds.

Is there fiber internet in Cupertino, CA?

AT&T provides fiber internet in Cupertino.