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 134,273 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 18, 2024
ProviderDownload SpeedUpload SpeedLatency
Spectrum
Cable
View Details →
196 Mbps12 Mbps13 ms
Cox Communications
Cable
Fiber
View Details →
129 Mbps24 Mbps14 ms
AT&T
DSL
Fiber
Fixed Wireless
View Details →
132 Mbps83 Mbps8 ms
Webpass
Fiber
Fixed Wireless
View Details →
249 Mbps169 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 134,273 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 59% of users saw upload speeds between 10-25 Mbps.

Download Speeds

Upload Speeds

Recent Spectrum Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
March 16, 202448 Mbps18 Mbps11 ms
March 16, 2024339 Mbps10 Mbps9 ms
March 16, 202488 Mbps22 Mbps19 ms
March 16, 2024216 Mbps12 Mbps11 ms
March 16, 2024359 Mbps11 Mbps9 ms
March 16, 2024470 Mbps37 Mbps11 ms
March 16, 202493 Mbps33 Mbps9 ms
March 16, 202481 Mbps22 Mbps17 ms
March 16, 2024199 Mbps10 Mbps19 ms
March 16, 2024166 Mbps11 Mbps50 ms

Cox Communications

Cable
Fiber

Download Speed

129Mbps

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 129 Mbps for download speeds and 24 Mbps for upload speeds over 105,514 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
March 16, 202487 Mbps12 Mbps18 ms
March 16, 20243 Mbps9 Mbps21 ms
March 16, 2024358 Mbps34 Mbps9 ms
March 16, 2024264 Mbps10 Mbps18 ms
March 16, 2024394 Mbps56 Mbps12 ms
March 16, 2024328 Mbps46 Mbps17 ms
March 16, 2024217 Mbps11 Mbps20 ms
March 16, 20248 Mbps9 Mbps8 ms
March 16, 202499 Mbps10 Mbps15 ms
March 16, 2024914 Mbps40 Mbps8 ms

AT&T

DSL
Fiber
Fixed Wireless

Download Speed

132Mbps

Upload Speed

83Mbps

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 132 Mbps for download speeds and 83 Mbps for upload speeds over 96,150 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
March 16, 2024392 Mbps319 Mbps14 ms
March 16, 202458 Mbps15 Mbps12 ms
March 16, 2024267 Mbps13 Mbps12 ms
March 16, 2024248 Mbps336 Mbps6 ms
March 16, 20246 Mbps1 Mbps74 ms
March 16, 2024303 Mbps286 Mbps5 ms
March 16, 2024105 Mbps19 Mbps11 ms
March 16, 202453 Mbps12 Mbps20 ms
March 16, 202496 Mbps18 Mbps9 ms
March 16, 202453 Mbps10 Mbps26 ms

Webpass

Fiber
Fixed Wireless

Download Speed

249Mbps

Upload Speed

169Mbps

Latency

6ms

Overview

Webpass is the 4th most popular provider in San Diego offering fiber and fixed wireless internet service. Users have been getting 249 Mbps for download speeds and 169 Mbps for upload speeds over 17,196 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. 27% of users saw download speeds between 250-500 Mbps, and 40% of users saw upload speeds faster than 250 Mbps.

Download Speeds

Upload Speeds

Recent Webpass Speed Tests in San Diego

DateDownload SpeedUpload SpeedLatency
March 16, 202494 Mbps80 Mbps6 ms
March 16, 2024857 Mbps819 Mbps5 ms
March 16, 20249 Mbps9 Mbps6 ms
March 16, 2024760 Mbps586 Mbps4 ms
March 16, 2024378 Mbps335 Mbps7 ms
March 16, 2024924 Mbps918 Mbps7 ms
March 16, 2024677 Mbps913 Mbps4 ms
March 16, 2024505 Mbps308 Mbps7 ms
March 16, 2024184 Mbps226 Mbps4 ms
March 16, 2024157 Mbps175 Mbps7 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.