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 115,489 recent tests, on average, we have been seeing 173 Mbps for download speeds and 11 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 28, 2023
ProviderDownload SpeedUpload SpeedLatency
Spectrum
Cable
View Details →
173 Mbps11 Mbps13 ms
Cox Communications
Cable
Fiber
View Details →
105 Mbps11 Mbps10 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
92 Mbps38 Mbps9 ms
Webpass
Fiber
Fixed Wireless
View Details →
190 Mbps131 Mbps6 ms
* Data from speed tests taken in the last 3 months

Internet Providers in San Diego, CA

Spectrum

Cable

Download Speed

173Mbps

Upload Speed

11Mbps

Latency

13ms

Overview

Spectrum is the most popular provider in San Diego offering cable internet service. Users have been getting 173 Mbps for download speeds and 11 Mbps for upload speeds over 115,489 recent tests.

Performance Breakdown

Spectrum has the 2nd fastest average download speed, the 4th fastest average upload speed, and the 4th lowest latency out of all of the providers in San Diego. 31% 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
March 26, 2023313 Mbps8 Mbpsn/a ms
March 26, 20237 Mbps36 Mbps15 ms
March 26, 2023873 Mbps7 Mbps12 ms
March 26, 202389 Mbps19 Mbps11 ms
March 26, 2023355 Mbps12 Mbps15 ms
March 26, 2023246 Mbps12 Mbpsn/a ms
March 26, 2023578 Mbps23 Mbps14 ms
March 26, 2023198 Mbps23 Mbpsn/a ms
March 26, 20232 Mbps3 Mbps8 ms
March 26, 2023314 Mbps13 Mbps11 ms

Cox Communications

Cable
Fiber

Download Speed

105Mbps

Upload Speed

11Mbps

Latency

10ms

Overview

Cox Communications is the 2nd most popular provider in San Diego offering cable and fiber internet service. Users have been getting 105 Mbps for download speeds and 11 Mbps for upload speeds over 96,476 recent tests.

Performance Breakdown

Cox Communications 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 San Diego. 24% of users saw download speeds between 100-250 Mbps, and 38% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Cox Communications Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
March 26, 202353 Mbps11 Mbps10 ms
March 26, 2023294 Mbps11 Mbps9 ms
March 26, 202374 Mbps24 Mbps13 ms
March 26, 20236 Mbps1 Mbps241 ms
March 26, 2023549 Mbps35 Mbps7 ms
March 26, 2023209 Mbps10 Mbpsn/a ms
March 26, 2023211 Mbps10 Mbps11 ms
March 26, 202336 Mbps24 Mbps8 ms
March 26, 20235 Mbps5 Mbps23 ms
March 26, 20237 Mbps3 Mbps16 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

92Mbps

Upload Speed

38Mbps

Latency

9ms

Overview

AT&T is the 3rd most popular provider in San Diego offering DSL, fiber and fixed wireless internet service. Users have been getting 92 Mbps for download speeds and 38 Mbps for upload speeds over 74,312 recent tests.

Performance Breakdown

AT&T has the 4th fastest average download speed, the 2nd fastest average upload speed, and the 2nd lowest latency out of all of the providers in San Diego. 21% of users saw download speeds between 50-100 Mbps, and 22% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent AT&T Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
March 26, 2023495 Mbps457 Mbpsn/a ms
March 26, 2023485 Mbps473 Mbpsn/a ms
March 26, 2023457 Mbps415 Mbpsn/a ms
March 26, 202354 Mbps12 Mbps36 ms
March 26, 202353 Mbps33 Mbps18 ms
March 26, 2023763 Mbps241 Mbps6 ms
March 26, 2023111 Mbps101 Mbps6 ms
March 26, 202326 Mbps11 Mbps20 ms
March 26, 202323 Mbps4 Mbps7 ms
March 26, 202325 Mbps4 Mbps6 ms

Webpass

Fiber
Fixed Wireless

Download Speed

190Mbps

Upload Speed

131Mbps

Latency

6ms

Overview

Webpass is the 4th most popular provider in San Diego offering fiber and fixed wireless internet service. Users have been getting 190 Mbps for download speeds and 131 Mbps for upload speeds over 24,780 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. 25% of users saw download speeds between 250-500 Mbps, and 35% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Webpass Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
March 26, 2023856 Mbps462 Mbps6 ms
March 26, 2023204 Mbps110 Mbps12 ms
March 26, 202359 Mbps33 Mbps7 ms
March 26, 2023251 Mbps283 Mbps16 ms
March 26, 2023212 Mbps241 Mbps10 ms
March 26, 202394 Mbps93 Mbpsn/a ms
March 26, 2023310 Mbps273 Mbps8 ms
March 26, 2023136 Mbps77 Mbps39 ms
March 26, 2023305 Mbps178 Mbps10 ms
March 26, 2023597 Mbps861 Mbps4 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.