RealSpeeds

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 7,526 recent tests, on average, we have been seeing 128 Mbps for download speeds and 15 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 Unwired.

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
Fiber
View Details →
128 Mbps15 Mbps10 ms
AT&T
DSL
Fiber
View Details →
93 Mbps59 Mbps7 ms
Unwired
Fixed Wireless
View Details →
17 Mbps3 Mbps12 ms
* Data from speed tests taken in the last 3 months

Internet Providers in Castro Valley, CA

Xfinity

Cable
Fiber

Download Speed

128Mbps

Upload Speed

15Mbps

Latency

10ms

Overview

Xfinity is the most popular provider in Castro Valley offering cable and fiber internet service. Users have been getting 128 Mbps for download speeds and 15 Mbps for upload speeds over 7,526 recent tests.

Performance Breakdown

Xfinity has the fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in Castro Valley. 23% of users saw download speeds between 100-250 Mbps, and 57% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Xfinity Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
February 2, 2023905 Mbps12 Mbps10 ms
February 2, 2023131 Mbps11 Mbps22 ms
February 2, 2023106 Mbps1 Mbps19 ms
February 2, 20236 Mbps6 Mbps29 ms
February 2, 2023377 Mbps17 Mbps9 ms
February 2, 2023119 Mbps18 Mbps7 ms
February 2, 20236 Mbps5 Mbps17 ms
February 2, 2023304 Mbps22 Mbps7 ms
February 2, 20235 Mbps12 Mbpsn/a ms
February 2, 2023210 Mbps41 Mbps9 ms

AT&T

DSL
Fiber

Download Speed

93Mbps

Upload Speed

59Mbps

Latency

7ms

Overview

AT&T is the 2nd most popular provider in Castro Valley offering DSL and fiber internet service. Users have been getting 93 Mbps for download speeds and 59 Mbps for upload speeds over 4,260 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 27% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
February 2, 2023542 Mbps674 Mbpsn/a ms
February 2, 2023529 Mbps465 Mbpsn/a ms
February 2, 202353 Mbps12 Mbpsn/a ms
February 2, 2023542 Mbps160 Mbps9 ms
February 2, 202332 Mbps6 Mbps24 ms
February 2, 2023168 Mbps79 Mbps20 ms
February 2, 2023106 Mbps95 Mbpsn/a ms
February 2, 2023319 Mbps124 Mbps5 ms
February 2, 2023110 Mbps1 Mbps9 ms
February 1, 2023107 Mbps98 Mbps22 ms

Unwired

Fixed Wireless

Download Speed

17Mbps

Upload Speed

3Mbps

Latency

12ms

Overview

Unwired is the 3rd most popular provider in Castro Valley offering fixed wireless internet service. Users have been getting 17 Mbps for download speeds and 3 Mbps for upload speeds over 42 recent tests.

Performance Breakdown

Unwired has the 3rd fastest average download speed, the 3rd fastest average upload speed, and the 3rd lowest latency out of all of the providers in Castro Valley. 58% of users saw download speeds between 10-25 Mbps, and 63% of users saw upload speeds slower than 5 Mbps.

Download Speeds

Upload Speeds

Recent Unwired Speed Tests in Castro Valley

DateDownload SpeedUpload SpeedLatency
January 25, 202310 Mbps3 Mbps12 ms
January 25, 202326 Mbps7 Mbps13 ms
January 17, 202322 Mbps8 Mbps10 ms

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Frequently Asked Questions

What internet providers are available in Castro Valley, CA?

Xfinity, AT&T and Unwired 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.