Internet Speeds in Castro Valley, CA

There are 3 internet providers operating in Castro Valley, the most popular being Xfinity. Xfinity offers cable and fiber internet service. In 11,467 recent tests, on average, we have been seeing 183 Mbps for download speeds and 19 Mbps for upload speeds for Xfinity customers. In addition to Xfinity, DSL, fiber and fixed wireless internet service is also available from AT&T and Etheric Networks.

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 March 18, 2024
ProviderDownload SpeedUpload SpeedLatency
Xfinity
Cable
Fiber
View Details →
183 Mbps19 Mbps11 ms
AT&T
DSL
Fiber
View Details →
114 Mbps81 Mbps7 ms
Etheric Networks
Fixed Wireless
View Details →
30 Mbps19 Mbps10 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Castro Valley, CA

Xfinity

Cable
Fiber

Download Speed

183Mbps

Upload Speed

19Mbps

Latency

11ms

Overview

Xfinity is the most popular provider in Castro Valley offering cable and fiber internet service. Users have been getting 183 Mbps for download speeds and 19 Mbps for upload speeds over 11,467 recent tests.

Performance Breakdown

Xfinity has the fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Castro Valley. 25% of users saw download speeds between 250-500 Mbps, and 52% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
March 16, 2024845 Mbps118 Mbps8 ms
March 16, 202490 Mbps14 Mbps22 ms
March 16, 2024293 Mbps22 Mbps9 ms
March 16, 2024221 Mbps103 Mbps7 ms
March 16, 202420 Mbps12 Mbps24 ms
March 16, 2024729 Mbps37 Mbps8 ms
March 16, 2024201 Mbps23 Mbps9 ms
March 16, 2024541 Mbps6 Mbps19 ms
March 16, 202492 Mbps37 Mbps16 ms
March 16, 202441 Mbps6 Mbps13 ms

AT&T

DSL
Fiber

Download Speed

114Mbps

Upload Speed

81Mbps

Latency

7ms

Overview

AT&T is the 2nd most popular provider in Castro Valley offering DSL and fiber internet service. Users have been getting 114 Mbps for download speeds and 81 Mbps for upload speeds over 4,402 recent tests.

Performance Breakdown

AT&T has the 2nd fastest average download speed, the fastest average upload speed, and the lowest latency 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 AT&T Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
March 16, 202493 Mbps76 Mbps5 ms
March 16, 202447 Mbps71 Mbps6 ms
March 16, 2024270 Mbps464 Mbps6 ms
March 16, 2024789 Mbps370 Mbps44 ms
March 16, 202454 Mbps11 Mbps75 ms
March 16, 20247 Mbps1 Mbps29 ms
March 16, 202432 Mbps6 Mbps24 ms
March 16, 20248 Mbps7 Mbps23 ms
March 16, 2024740 Mbps112 Mbps47 ms
March 16, 2024599 Mbps898 Mbps4 ms

Etheric Networks

Fixed Wireless

Download Speed

30Mbps

Upload Speed

19Mbps

Latency

10ms

Overview

Etheric Networks is the 3rd most popular provider in Castro Valley offering fixed wireless internet service. Users have been getting 30 Mbps for download speeds and 19 Mbps for upload speeds over 68 recent tests.

Performance Breakdown

Etheric Networks has the 3rd fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Castro Valley. 39% of users saw download speeds between 25-50 Mbps, and 52% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Etheric Networks Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
March 16, 20244 Mbps1 Mbps6 ms
March 16, 202411 Mbps19 Mbps12 ms
March 15, 202443 Mbps24 Mbps13 ms
March 15, 202446 Mbps20 Mbps19 ms
March 15, 202416 Mbps17 Mbps11 ms
March 14, 202439 Mbps19 Mbps21 ms
March 14, 202445 Mbps50 Mbps22 ms
March 13, 202449 Mbps22 Mbps10 ms
March 13, 202435 Mbps22 Mbps260 ms
March 13, 202435 Mbps19 Mbps260 ms

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Frequently Asked Questions

What internet providers are available in Castro Valley, CA?

Xfinity, AT&T and Etheric Networks 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.