Internet Speeds in Cupertino, CA

There are 2 internet providers operating in Cupertino, the most popular being Xfinity. Xfinity offers cable internet service. In 24,929 recent tests, on average, we have been seeing 152 Mbps for download speeds and 18 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 17, 2024
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
View Details →
152 Mbps18 Mbps10 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
181 Mbps104 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Cupertino, CA

Xfinity

Cable

Download Speed

152Mbps

Upload Speed

18Mbps

Latency

10ms

Overview

Xfinity is the most popular provider in Cupertino offering cable internet service. Users have been getting 152 Mbps for download speeds and 18 Mbps for upload speeds over 24,929 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. 27% of users saw download speeds between 100-250 Mbps, and 36% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Cupertino

DateDownload SpeedUpload SpeedLatency
February 16, 2024111 Mbps2 Mbps128 ms
February 16, 202456 Mbps12 Mbps27 ms
February 16, 202410 Mbps7 Mbps13 ms
February 16, 2024331 Mbps41 Mbps5 ms
February 16, 2024119 Mbps18 Mbps7 ms
February 16, 202489 Mbps24 Mbps7 ms
February 16, 2024337 Mbps23 Mbps10 ms
February 16, 2024269 Mbps229 Mbps4 ms
February 16, 2024342 Mbps10 Mbps10 ms
February 16, 2024143 Mbps6 Mbps19 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

181Mbps

Upload Speed

104Mbps

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 181 Mbps for download speeds and 104 Mbps for upload speeds over 10,950 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. 27% of users saw download speeds between 250-500 Mbps, and 31% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in Cupertino

DateDownload SpeedUpload SpeedLatency
February 16, 2024251 Mbps337 Mbps4 ms
February 16, 2024522 Mbps459 Mbps6 ms
February 16, 2024538 Mbps479 Mbps5 ms
February 16, 2024877 Mbps1 Mbps4 ms
February 16, 202422 Mbps1 Mbps26 ms
February 16, 2024159 Mbps1 Mbps5 ms
February 16, 2024644 Mbps586 Mbps7 ms
February 16, 2024133 Mbps130 Mbps6 ms
February 16, 2024402 Mbps271 Mbps5 ms
February 16, 2024393 Mbps261 Mbps6 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.