RealSpeeds

Internet Speeds in Cupertino, CA

Residents of Cupertino have 2 internet providers to choose from. The most popular provider is Xfinity, which offers cable internet service. Over 29,795 recent tests, our research shows that Xfinity customers have been getting 100 Mbps for download speeds and 11 Mbps for upload speeds. 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 recent tests, there are many factors that affect download and upload speeds, so your actual service may differ.

Last updated on May 12 2022
ProviderDownload SpeedUpload Speed
Xfinity
Cable
View Details →
100 Mbps11 Mbps
AT&T
DSL
Fiber
Fixed Wireless
View Details →
138 Mbps80 Mbps
* Data from speed tests taken in the last 3 months

Internet Providers in Cupertino, CA

Xfinity

Cable

Download Speed

100Mbps

Upload Speed

11Mbps

Overview

Xfinity is the most popular provider in Cupertino offering cable internet service. Users have been getting 100 Mbps for download speeds and 11 Mbps for upload speeds over 29,795 recent tests.

Speed Breakdown

Xfinity has the 2nd fastest average download speeds and the 2nd fastest average upload speeds out of all of the providers in Cupertino. 26% of users saw download speeds between 100-250 Mbps, and 39% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

138Mbps

Upload Speed

80Mbps

Overview

AT&T is the 2nd most popular provider in Cupertino offering DSL, fiber and fixed wireless internet service. Users have been getting 138 Mbps for download speeds and 80 Mbps for upload speeds over 16,829 recent tests.

Speed Breakdown

AT&T has the fastest average download speeds and the fastest average upload speeds out of all of the providers in Cupertino. 26% of users saw download speeds between 250-500 Mbps, and 24% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Test Your Internet Speed

Download
0
Mbps
Upload
0
Mbps

We’ll run a download test and an upload test to give you the full picture of your internet connection.

This speed test goes directly towards making the speed data more accurate in your city.

Nearby Cities

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.