RealSpeeds

Internet Speeds in Castro Valley, CA

There are 2 internet providers operating in Castro Valley, the most popular being Xfinity. Xfinity offers cable and fiber internet service. In 9,914 recent tests, on average, we have been seeing 117 Mbps for download speeds and 12 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL and fiber 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 September 22, 2022
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
Fiber
View Details →
117 Mbps12 Mbps10 ms
AT&T
DSL
Fiber
View Details →
94 Mbps57 Mbps7 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Castro Valley, CA

Xfinity

Cable
Fiber

Download Speed

117Mbps

Upload Speed

12Mbps

Latency

10ms

Overview

Xfinity is the most popular provider in Castro Valley offering cable and fiber internet service. Users have been getting 117 Mbps for download speeds and 12 Mbps for upload speeds over 9,914 recent tests.

Speed Breakdown

Xfinity has the fastest average download speeds and the 2nd fastest average upload speeds out of all of the providers in Castro Valley. 26% of users saw download speeds between 100-250 Mbps, and 55% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
September 20, 202234 Mbps24 Mbps8 ms
September 20, 2022273 Mbps12 Mbps10 ms
September 20, 202240 Mbps23 Mbps12 ms
September 20, 202223 Mbps27 Mbps523 ms
September 20, 202229 Mbps6 Mbps17 ms
September 20, 2022737 Mbps38 Mbps15 ms
September 20, 202230 Mbps1 Mbps9 ms
September 20, 202291 Mbps12 Mbpsn/a ms
September 20, 2022105 Mbps35 Mbps18 ms
September 20, 2022261 Mbps17 Mbps9 ms

AT&T

DSL
Fiber

Download Speed

94Mbps

Upload Speed

57Mbps

Latency

7ms

Overview

AT&T is the 2nd most popular provider in Castro Valley offering DSL and fiber internet service. Users have been getting 94 Mbps for download speeds and 57 Mbps for upload speeds over 5,230 recent tests.

Speed Breakdown

AT&T has the 2nd fastest average download speeds and the fastest average upload speeds out of all of the providers in Castro Valley. 20% of users saw download speeds between 250-500 Mbps, and 29% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Speed Tests

DateDownload SpeedUpload SpeedLatency
September 20, 202253 Mbps12 Mbpsn/a ms
September 20, 20225 Mbps3 Mbps19 ms
September 20, 20221 Mbps10 Mbps21 ms
September 20, 202286 Mbps5 Mbps22 ms
September 19, 202252 Mbps6 Mbpsn/a ms
September 19, 202232 Mbps5 Mbps24 ms
September 19, 202266 Mbps52 Mbps20 ms
September 19, 202266 Mbps2 Mbps20 ms
September 19, 202280 Mbps6 Mbps22 ms
September 19, 20222 Mbps1 Mbps32 ms

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Frequently Asked Questions

What internet providers are available in Castro Valley, CA?

Xfinity and AT&T currently operate in Castro Valley.

What is the most popular internet provider in Castro Valley, CA?

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

What is the fastest internet provider in Castro Valley, 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 Castro Valley are getting, Xfinity provides the fastest download and upload speeds.

Is there fiber internet in Castro Valley, CA?

AT&T and Xfinity provide fiber internet in Castro Valley.