Internet Speeds in San Diego, CA

There are 4 internet providers operating in San Diego, the most popular being Spectrum. Spectrum offers cable internet service. In 134,806 recent tests, on average, we have been seeing 196 Mbps for download speeds and 12 Mbps for upload speeds for Spectrum customers. In addition to Spectrum, cable, fiber, DSL and fixed wireless internet service is also available from Cox Communications, AT&T and Webpass.

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 1, 2024
ProviderDownload SpeedUpload SpeedLatency
Spectrum
Cable
View Details →
196 Mbps12 Mbps13 ms
Cox Communications
Cable
Fiber
View Details →
125 Mbps24 Mbps14 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
131 Mbps82 Mbps8 ms
Webpass
Fiber
Fixed Wireless
View Details →
237 Mbps164 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Diego, CA

Spectrum

Cable

Download Speed

196Mbps

Upload Speed

12Mbps

Latency

13ms

Overview

Spectrum is the most popular provider in San Diego offering cable internet service. Users have been getting 196 Mbps for download speeds and 12 Mbps for upload speeds over 134,806 recent tests.

Performance Breakdown

Spectrum has the 2nd fastest average download speed, the 4th fastest average upload speed, and the 3rd lowest latency out of all of the providers in San Diego. 32% of users saw download speeds between 250-500 Mbps, and 60% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Spectrum Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
February 29, 2024329 Mbps1 Mbps18 ms
February 29, 202442 Mbps19 Mbps42 ms
February 29, 2024337 Mbps1 Mbps18 ms
February 29, 2024222 Mbps12 Mbps11 ms
February 29, 2024212 Mbps22 Mbps12 ms
February 29, 202490 Mbps36 Mbps11 ms
February 29, 20247 Mbps6 Mbps24 ms
February 29, 2024209 Mbps38 Mbps18 ms
February 29, 2024216 Mbps12 Mbps13 ms
February 29, 2024226 Mbps11 Mbps23 ms

Cox Communications

Cable
Fiber

Download Speed

125Mbps

Upload Speed

24Mbps

Latency

14ms

Overview

Cox Communications is the 2nd most popular provider in San Diego offering cable and fiber internet service. Users have been getting 125 Mbps for download speeds and 24 Mbps for upload speeds over 108,717 recent tests.

Performance Breakdown

Cox Communications has the 4th fastest average download speed, the 3rd fastest average upload speed, and the 4th lowest latency out of all of the providers in San Diego. 23% of users saw download speeds between 250-500 Mbps, and 26% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Cox Communications Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
February 29, 202460 Mbps68 Mbps20 ms
February 29, 2024699 Mbps555 Mbps13 ms
February 29, 2024257 Mbps97 Mbps9 ms
February 29, 20242 Mbps40 Mbps9 ms
February 29, 202446 Mbps28 Mbps47 ms
February 29, 202460 Mbps12 Mbps16 ms
February 29, 2024524 Mbps57 Mbps11 ms
February 29, 2024291 Mbps41 Mbps16 ms
February 29, 202494 Mbps1 Mbps17 ms
February 29, 2024894 Mbps113 Mbps9 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

131Mbps

Upload Speed

82Mbps

Latency

8ms

Overview

AT&T is the 3rd most popular provider in San Diego offering DSL, fiber and fixed wireless internet service. Users have been getting 131 Mbps for download speeds and 82 Mbps for upload speeds over 96,337 recent tests.

Performance Breakdown

AT&T 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 San Diego. 23% of users saw download speeds between 250-500 Mbps, and 28% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
February 29, 2024298 Mbps1 Mbps5 ms
February 29, 2024583 Mbps427 Mbps9 ms
February 29, 2024170 Mbps233 Mbps15 ms
February 29, 202497 Mbps18 Mbps24 ms
February 29, 202448 Mbps20 Mbps22 ms
February 29, 2024101 Mbps83 Mbps7 ms
February 29, 202482 Mbps16 Mbps25 ms
February 29, 2024175 Mbps116 Mbps8 ms
February 29, 202433 Mbps40 Mbps8 ms
February 29, 2024319 Mbps294 Mbps8 ms

Webpass

Fiber
Fixed Wireless

Download Speed

237Mbps

Upload Speed

164Mbps

Latency

6ms

Overview

Webpass is the 4th most popular provider in San Diego offering fiber and fixed wireless internet service. Users have been getting 237 Mbps for download speeds and 164 Mbps for upload speeds over 20,147 recent tests.

Performance Breakdown

Webpass has the fastest average download speed, the fastest average upload speed, and the lowest latency out of all of the providers in San Diego. 26% of users saw download speeds between 250-500 Mbps, and 39% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Webpass Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
February 29, 202494 Mbps79 Mbps5 ms
February 29, 2024719 Mbps685 Mbps6 ms
February 29, 2024402 Mbps19 Mbps7 ms
February 29, 202494 Mbps80 Mbps5 ms
February 29, 2024651 Mbps619 Mbps5 ms
February 29, 202495 Mbps94 Mbps4 ms
February 29, 202466 Mbps1 Mbps7 ms
February 29, 2024138 Mbps57 Mbps25 ms
February 29, 2024707 Mbps575 Mbps4 ms
February 29, 202494 Mbps94 Mbps5 ms

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Frequently Asked Questions

What internet providers are available in San Diego, CA?

Spectrum, Cox Communications, AT&T and Webpass currently operate in San Diego.

What is the most popular internet provider in San Diego, CA?

Spectrum is currently the most popular internet provider in San Diego based on the number of speed tests in the last 3 months.

What is the fastest internet provider in San Diego, 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 San Diego are getting, Webpass provides the fastest download speeds and Webpass provides the fastest upload speeds.

Is there fiber internet in San Diego, CA?

Webpass, AT&T and Cox Communications provide fiber internet in San Diego.